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GLOBEC Northeast Pacific, Coastal Gulf of Alaska Cruise Report, R/V Alpha Helix (HX 244) 17 May – 31 May 2001

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Page 1: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 1

GLOBEC Northeast Pacific, Coastal Gulf of Alaska

Cruise Report, R/V Alpha Helix (HX 244)

17 May – 31 May 2001

Page 2: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2

GLOBEC Northeast Pacific, Coastal Gulf of Alaska

Cruise Report, R/V Alpha Helix (HX 244)

17 May – 31 May 2001

Chief Scientist:Suzanne StromShannon Point Marine CenterWestern Washington University1900 Shannon Point RoadAnacortes, WA 98221 360-293-2188E-mail: [email protected]

Port of Departure: Seward, AlaskaPort of Return: Seward, Alaska

Cruise Goals / Scientific Purpose

The GLOBEC Northeast Pacific program seeks to understand the relationship between climate variability and thesuccess of marine fish, bird and mammal populations. In the coastal Gulf of Alaska, the program focuses on themechanisms by which climate and weather can influence the physical - chemical structure of the coastal zone, howthis in turn affects the coastal planktonic food web, and how food web variations influence distribution and recruit-ment success of pink salmon. The process cruises specifically will be conducted 3 times in 2001 and 3 times in2003. On each cruise the aim is to visit four sites representing a diversity of physical - chemical conditions in thecoastal Gulf of Alaska. At each of these core sites, rates of phytoplankton growth, zooplankton grazing and zoop-lankton egg production will be measured, as well as aspects of phytoplankton and zooplankton community structure.These measurements will be related to the physical - chemical environment by means of vertical profiling at theprocess stations themselves, sampling of a “fine-scale” grid around each of the core process stations, and use of datacollected on LTOP cruises. Data collected will ultimately be compared to related data from the Oregon coastalupwelling system.

The May cruise focused on spring phytoplankton bloom processes, and the responses of the zooplankton communityto mid and late bloom conditions.

Cruise Objectives

1. Determine phytoplankton growth rates and rates of microzooplankton herbivory.2. Determine rates of grazing on phyto- and microzooplankton by dominant copepod taxa including Neocalanus

and smaller calanoids. Live net collections are summarized in Table 2.3. Measure rates of egg production by copepods Calanus, Pseudocalanus, Metridia and others4. Assess vertical distribution of temperature, salinity, light, nutrients, chlorophyll and microzooplankton at core

process stations and fine-scale grid stations (Table 3).5. Conduct net tows (CalVET, MOCNESS) for distribution and abundance of zooplankton at core process stations.

MOCNESS tows are summarized in Table 4; CalVET and CalVET53 net tows in Tables 5 and 6.

Summaries of each of the GLOBEC projects may be found at the web site: http://globec.coas.oregonstate.edu/groups/nep/projs.html.

Page 3: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 3

Table 1. GLOBEC Cruise ParticipantsChristine Baier Copepod grazing/egg prod., AFSC (F), [email protected] Lanksbury Copepod grazing/egg prod., AFSC (F)Hongbin Liu Neocalanus grazing, LUMCON (M), [email protected] Lawrence Neocalanus grazing, LUMCON (M), [email protected] Olson Microzoo grazing, WWU (M), [email protected] Kast Microzoo grazing, WWU (F), [email protected] Macri Chlorophyll/nutrients, WWU (F), [email protected] Bright Chlorophyll/nutrients, WWU (F)Moon Sookmi CTD/ADCP, UAF (F)Steve Hartz Marine tech, UAF (M)Dave Aldrich Marine tech, UAF (M)

AFSC = Alaska Fisheries Science Center (NOAA); LUMCON = Louisiana Universities Marine Consortium; WWU =Western Washington University.

Summary of Cruise

See Appendix 1 (Event Log).

Daily Cruise Summary (Narrative)

17 May. Departed Seward 0921 ADT. Proceeded directly to our outer shelf core station OS-C (GAK-10). Immedi-ately following initial CTD profiling, commenced grazing experiments. Continued day/night cycle of work asoutlined above, completing daytime grid station survey on 18 May and night MOCNESS/CalVET sampling on nightsof 17-18 May, 18-19 May, and 19-20 May. Additional Seward Line stations GAK-11, -12, -13, -9, –8i, and 8 wereprofiled while working in this vicinity. Three sets of grazing experiments (microzooplankton, Neocalanus, othercalanoids) were run at OS-C.

20 May. Proceeded to the mid-shelf core station MS-C (GAK-6). Conducted CalVET tows for copepod egg ratios,established one microzooplankton grazing experiment, and conducted a deep CTD cast with full suite of samplestaken. Then left due to rough weather. Transited to inner shelf but high winds and seas precluded work there.Proceeded to Prince William Sound.

21 - 23 May. Work in PWS included 3 sets of grazing experiments, 3 night CalVET / MOCNESS tow series, andseveral egg production experiments all initiated at core sampling station PWS-2. Fine-scale grid survey aroundPWS-2 was conducted on 21 May. Additional CTD sections at Montague Strait (23 May) and a CTD / FlowCAMsurvey of Port Nellie Juan and Blue Fjords (22 May) were also undertaken.

23 – 24 May. Returned to inner shelf and conducted CTD casts in a transect across the Alaska Coastal Currentregion (GAK4 to GAK 1i, with additional stations ACC-1 and ACC-2 added on either side of GAK-2) to determinelocation of current. High surface fluorescence at GAK-4 indicated a phytoplankton bloom in progress, also sug-gested for the region by a SeaWiFS image from 20 May. Decided to shift mid-shelf focus to GAK-4 to examine rateprocesses in this potentially large mid-shelf feature.

24 – 27 May. Conducted 4 sets of grazing experiments (2 in bloom, 2 outside of bloom), 4 night CalVET / MOC-NESS tow series (ditto), and several egg production experiments.

25 - 26 May. Conducted fine-scale grid sampling. Several additional CTD and seachest transects were run toestablish the location of the bloom, which was changeable on an hourly basis. Oh, for a mesoscale survey compo-nent to this program.

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 4

28 May. Conducted CTD transect of inner shelf (GAK3 to GAK1i). Selected station ACC1 as mostrepresentative of the core of the Alaska Coastal Current. This region was also dominated by a diatombloom variable in intensity but consistently associated with the lower salinity, higher temperature surfacewaters of the ACC. Conducted 3 sets of grazing experiments, several egg production experiments, and 3rounds of night CalVET / MOCNESS tow series all centered on core station ACC1.

29 May. Fine-scale grid survey of the region surrounding ACC1 was undertaken. CTD transects across thecoastal current (GAK3 to GAK 1i or 1) were conducted an additional 3 times while working in this region,to define variability in the location of the current.

31 May. CTD survey of the Cape Fairfield line was completed en route to Seward. The Helix returned tothe dock at Seward at 1853.

The cooperative attitude and hard work of Captain Bill Rook and the crew of the R.V. Alpha Helix are muchappreciated, and contributed in large part to the success of this cruise.

Summary of Sampling Operations

Daytime Activities:

1. Collected ADCP, sea surface salinity, temperature and fluorescence data using sensors in the seachest, both whileunderway and while on station.

2. Occupied core process stations on the outer shelf (GAK-10), mid-shelf (GAK-6; GAK-4 and vicinity), inner shelf(ACC-1) and Prince William Sound (PWS-2) and conducted vertical CTD profiles (to near bottom, as for LTOPcruises) for determination of T, S, light (PAR) and in situ fluorescence distribution.

3. Collected discrete water samples from CTD cast (8 to 10 depths per cast) for measurement of nutrients (frozen foranalysis by C. Mordy), size-fractionated chlorophyll (<5 µm, 5 – 20 µm, >20 µm, analyzed on board), algal pigments(frozen for HPLC analysis by S. Strom) and microzooplankton abundance (acid Lugol’s-fixed samples for invertedmicroscopy, gluataraldehyde-fixed samples for epifluorescence microscopy). (Activities 2 and 3 were conductedupon arrival and at approx. local noon each day on station, with a reduced set of sample types taken during all butfirst cast on station.)

4. Conducted net tows (CalVET, Ring net) for preserved samples (zooplankton abundance, copepod egg abundance)and live animals (grazing and egg production experiment set-up).

5. Used CTD to collect water from upper mixed layer for set-up of dilution experiments (phytoplankton growth andmicrozooplankton grazing rates), copepod grazing experiments, and microplankton size-fractionation experiments.

6. Occupied fine-scale grid stations (generally 8) surrounding each core station (see attached charts) and conductedvertical profiling (as in #2) and water bottle sampling (as in #3, but with only 5 depths per cast, water samplescollected for nutrient and size-fractionated chlorophyll analysis).

Nighttime Activities:

1. Conducted MOCNESS and CalVET tows once each night while on core process stations.

2. Conduct night CTD/water sample profiling at core process station (see above).

Page 5: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 5

Summary of Process Studies

Microplankton Studies (Strom, Olson, Macri, Kast, Bright)

Vertical profiles for phyto- and microzooplankton abundance and species composition were taken at all core stations.A total of 14 seawater dilution experiments were conducted on board, with all experiments sampled for size-fractionated chlorophyll, phytoplankton pigments (HPLC) and microplankton community composition. Intrinsicgrowth rates up to 1 per d were observed in diatom bloom waters. Enrichment of dilution series with nutrients, incomparison with unenriched controls, indicated that post-bloom waters in PWS and most bloom waters in the GAK4region and in the ACC were nutrient limited. Large cells (>20 um) typically showed the highest degree of nutrientlimitation.

Preliminary results indicate that microzooplankton grazing rates were usually highest on the small (<5 um) and mid-sized (5 – 20 um) phytoplankton cells. Moderate grazing on large diatoms by microzooplankton was observed in allbloom waters.

The FlowCAM was used extensively to characterize the microplankton at each station and to analyze the shifts inparticle size spectrum and community composition during copepod grazing experiments. Low chlorophyll watersnear GAK-4 were dominated by chloroplast-retaining ciliates including Laboea, while diatom bloom waters on themid-shelf and in the ACC contained a mixture of Chaetoceros, Skeletonema, and other large chain-forming genera.

Egg Production and Diet Studies (Baier and Lanksbury)

We conducted a total of 6 grazing, 18 egg production, and 11 egg viability experiments. At stations where eggproduction experiments were collected, samples were collected for CHN (32) and RNA/DNA (18) analyses. Tripli-cate CALVET tows were made the first and last morning at each station, when possible, to determine the ratio offemales to eggs.

At the OS station, Eucalanus females were collected for a grazing experiment, egg production, and CHN samples. AtIS, PWS, MS blue water stations (GAK4 and 4GC), and MS bloom stations (4IW, 4GJ, and EXP11),Pseudocalanus females were used for all experiments and samples collected. In addition, Calanus marshallaefemales were used at PWS, and Metridia females at EXP11. Only one egg production and grazing experiment wascompleted with Metridia. We returned to this station 3 days later in an attempt to collect more, but though the watercolumn structure did not appear to have changed, no Metridia females were found. At the original MS station, noneof our target species were found in sufficient numbers to conduct experiments.

Neocalanus Grazing Experiments (Liu And Lawrence)

During cruise HX244 (May 17 – May 31), we conducted 13 Neocalanus grazing experiments. Neocalanus was mostabundant at the out-shelf station with all three species occurring. Neocalanus abundance was low at the inner-shelfstation and in the Prince William Sound. Various numbers of Neocalanus copepodids were added to each experi-mental bottle, usually duplicates of 4 different treatments plus a control. Chlorophyll-a concentrations in 3 sizefractions (< 5, 5 – 20 and > 20 mm) were measured at the beginning and end of the experiment. Water samples weretaken at the beginning and end of the incubation for FlowCam analysis of phytoplankton and microzoograzercompositions. In addition, samples from each incubation bottle were preserved in Lugol’s solution andgluteraldehyde (for making slides on board) for additional identification of microzooplankton. Similar to the resultsof the last cruise (HX242), we found that, in most cases, Neocalanus feed mainly on the phytoplankton cells largerthan 20 mm. We saw very little grazing and sometimes a positive cascading effect on the < 5 mm fraction. It is

possible that grazing pressure of microzooplankton on the < 5 mm cells were released as a result of Neocalanusfeeding on protozoan grazers.

Additionally, Neocalanus samples were frozen in liquid nitrogen for future analyses of dry weight, element composi-tion and lipid content at each core station. Water samples were also taken at each core station and from selectedexperiments for flow cytometric analysis of picophytoplankton and bacteria abundance.

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 6

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85

08

50

59

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45

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64

22

42

10

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ap

pev

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; eg

g pr

oduc

tion

HX

14

90

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veN

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41

07

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50

70

05

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27

0-1

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pp

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01

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Live

Net

45

10

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95

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16

59

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60

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66

22

42

10

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ap

pe

v#2

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HX

14

90

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veN

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07

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50

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25

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98

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27

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38;

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cala

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14

90

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05

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24

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00

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pp

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Live

Net

48

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CC

12

95

13

15

59

.72

52

-14

9.3

65

82

43

10

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ap

pev

#243

; eg

g pr

oduc

tion

Page 7: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 7

Tabl

e 2:

Col

lect

ion

of L

ive

Ani

mal

s fo

r S

hipb

oard

Exp

erim

ents

(co

nt’d

)E

vent

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str

Cas

tS

taS

taD

ayM

osTi

me

Lat

Long

Wat

erC

ast

SI

Com

men

tsst

dD

epth

Dep

th

HX

15

00

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5Li

veN

et4

91

20

AC

C1

30

50

72

55

9.7

28

8-1

49

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20

24

7n

dD

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ge

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63

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00

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veN

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AC

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50

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95

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ge

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66

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40

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51

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pp

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nH

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Net

53

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31

50

81

55

9.5

17

7-1

48

.86

57

17

37

5D

agg

ev#2

82;

Neo

cala

nus

Page 8: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 8

HX

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58

50

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omev

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er f

or f

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01

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zing

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12

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45

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ev#0

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ater

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13

80

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TD

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85

08

54

58

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118

14

65

50

Str

omev

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zing

exp

t #2

6.5

mH

X1

38

01

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CT

D1

71

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K10

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51

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95

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40

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37

14

65

14

60

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om

ev#

01

5;

HX

13

80

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TD

18

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AK

101

85

14

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58

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06

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07

01

48

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ev#0

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eter

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ated

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cked

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me

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101

95

07

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58

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12

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10

71

47

05

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trom

ev#0

30;w

ater

for

fsw

HX

13

90

1.0

7C

TD

11

911

GA

K10

19

50

81

95

8.5

40

7-1

48

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55

14

70

50

Str

omev

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;gra

zing

exp

t #3

HX

13

90

1.0

8C

TD

12

011

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511

59

58

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20

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116

14

62

14

60

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om

ev#

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13

90

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TD

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11

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AK

111

95

14

21

58

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78

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70

51

43

61

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ewar

d Li

ne s

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yH

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39

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13

GA

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51

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43

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23

21

68

21

68

Str

om

ev#

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HX

13

90

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TD

12

31

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AK

131

95

18

39

58

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87

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91

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09

52

09

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42

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me

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om

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14

00

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zing

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HX

14

00

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TD

12

91

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AK

62

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67

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72

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15

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tro

me

v#0

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41

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CT

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me

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zing

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14

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TD

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e 3:

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epth

Page 9: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 9

Tabl

e 3:

CT

D C

asts

(co

nt’d

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vent

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str

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me

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men

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th

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20

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TD

24

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22

25

08

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60

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04

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35

50

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omev

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zing

exp

# 6

HX

14

20

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25

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35

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35

nd

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15

13

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14

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52

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02

87

35

29

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v#1

67

;

Page 10: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 10

Tabl

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6;

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14

90

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11

44

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95

15

31

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14

52

17

21

3S

tro

me

v#2

47

;

Page 11: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 11

Tabl

e 3:

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D C

asts

(co

nt’d

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vent

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str

Cas

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Lat

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90

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56

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68

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8;

Page 12: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 12

HX

13

70

1.0

9M

OC

11

GA

K10

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52

35

85

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35

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00

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iled

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Page 13: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 13

HX

13

80

1.1

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alV

ET

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th

Page 14: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 14

HX

13

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 17

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 18

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 19

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 21

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 22

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 23

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 24

APPENDIX I

HX244 EVENT LOG

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 25

EVENT LOG CONTENTS

Column Label DescriptionEvent# Unique identifier for each line of event logInstrument (Instr) CTD1: Conductivity Temperature Depth profile collected with

Seabird SBE with 5 liter rosette, fluorescence;CTD2: Conductivity Temperature Depth profile collected with Seabird SBE with 10 liter rosette, no fluorescence;MOC: 1m2 MOCNESs with 0.505 mm mesh;LiveNet: 0.75 m diameter ring net with 0.200 mm mesh for collecting animals for experiments;CalVET: quantitative zooplankton sampling with 25 cm diameter CalVET net, equipped with 0.150 mm mesh;CalVET53: zooplankton sampling with a 25 cm diameter CalVET net, equipped with 0.053 mm mesh;CalVETQ: a quad (4 nets) CalVET — lost after 1 cast.

Cast Sequence # for a particular instrumentStation (Sta)Station Standard (Sta std)Day Local time basisMonth (Mos) Local time basisTime Local timeLatitude (Lat) Decimal degrees; north is positiveLongitude (Long) Decimal degrees; east is positiveWater Depth Depth of bottomCast Depth Maximum depth of deploymentScientific Investigator (SI)Comments

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nt#

Inst

rC

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Sta

Sta

Day

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Tim

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ater

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omm

ents

std

Dep

thD

epth

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 27

HX

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thD

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 28

Eve

nt#

Inst

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TD

16

34

4P

WS

22

35

12

01

60

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49

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7.8

03

57

37

72

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ev#1

15;

Mon

tagu

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#115

; M

onta

gue

Str

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surv

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X1

43

01

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CT

D1

64

45

MS

12

35

16

32

59

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31

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7.9

28

51

68

16

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tro

me

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65

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16

53

59

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34

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51

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16

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me

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CT

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66

47

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32

35

17

15

59

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10

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7.8

56

81

65

16

2n

de

v#11

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v#11

8H

X1

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01

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CT

D1

67

48

MS

42

35

17

43

59

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04

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28

811

01

05

Str

om

ev#

119

ev#

119

HX

14

30

1.1

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TD

16

84

9G

AK

42

35

22

44

59

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77

-14

9.0

47

12

00

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7S

trom

ev#1

20;

AC

Cev

#120

; A

CC

sur

vey

HX

14

30

1.1

7C

TD

16

95

0G

AK

3I2

35

23

27

59

.48

20

-14

9.1

17

22

05

20

2S

tro

me

v#1

21

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12

1H

X1

44

01

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CT

D1

70

51

GA

K3

24

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59

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34

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9.1

89

32

14

211

Str

om

ev#

12

2e

v#1

22

HX

14

40

1.0

2C

TD

17

15

2G

AK

2I2

45

00

57

59

.62

73

-14

9.2

59

12

15

21

0S

tro

me

v#1

23

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12

3H

X1

44

01

.03

CT

D1

72

53

GA

K2

24

50

14

15

9.6

92

5-1

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23

02

26

Str

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HX

14

40

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17

35

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CC

12

45

02

09

59

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03

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9.3

63

42

40

23

8S

tro

me

v#1

25

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12

5H

X1

44

01

.05

CT

D1

74

55

GA

K1I

24

50

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05

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67

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49

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74

26

22

63

Str

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ev#

12

6e

v#1

26

HX

14

40

1.0

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TD

17

55

6G

AK

12

45

03

26

59

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55

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9.4

66

92

74

26

8S

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me

v#1

27

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12

7H

X1

44

01

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CT

D1

76

57

AC

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24

50

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95

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31

22

12

14

Str

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28

HX

14

40

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53

12

58

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50

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Na

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29;

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HX

14

40

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53

13

58

GA

K4

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50

711

59

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72

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; eg

gev

#130

; eg

g ra

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X1

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Ca

lVE

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31

45

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AK

42

45

07

22

59

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72

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31

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X1

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Live

Net

27

58

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50

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19

91

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Na

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X1

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Live

Net

28

58

GA

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50

75

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9.4

05

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49

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77

19

91

00

Na

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33;

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Live

Net

29

58

GA

K4

24

50

80

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9.4

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X1

44

01

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CT

D1

77

58

GA

K4

24

50

82

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49

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69

18

95

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ev#1

35;

wat

erev

#135

; w

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for

fsw

HX

14

40

1.1

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TD

17

85

8G

AK

42

45

09

37

59

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79

-14

9.0

48

01

95

50

Str

omev

#136

; gr

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#136

; gr

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g ex

p. #

8H

X1

44

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CT

D1

79

58

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K4

24

51

20

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75

20

02

00

Str

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ev#

13

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v#1

37

HX

14

40

1.1

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TD

18

05

9G

AK

4I2

45

12

53

59

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53

-14

8.9

77

31

97

19

0S

trom

ev#1

38;

Sew

ard

ev#1

38;

Sew

ard

Line

sur

vey

HX

14

40

1.1

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TD

18

16

0G

AK

52

45

13

38

59

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18

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8.9

07

71

70

16

5S

tro

me

v#1

39

ev#

13

9H

X1

44

01

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CT

D1

82

61

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51

42

35

9.1

90

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77

17

01

60

Str

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40

HX

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40

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18

36

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62

45

15

115

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14

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60

15

21

46

Str

om

ev#

14

1e

v#1

41

HX

14

40

1.2

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TD

18

46

35W

24

51

72

25

9.1

91

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94

16

55

1n

dev

#142

; S

earc

hing

ev#1

42;

Sea

rchi

ng f

or t

he b

loom

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 29

HX

14

40

1.2

2C

TD

18

56

44I

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45

17

56

59

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40

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75

01

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50

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ev#

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43

HX

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40

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18

66

54W

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51

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34

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52

16

55

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ap

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44

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4H

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Net

30

66

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Str

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; eg

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g pr

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HX

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66

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AK

42

45

23

31

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HX

14

50

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96

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42

55

00

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55

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Net

31

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5H

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45

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Live

Net

33

69

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50

75

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9.2

63

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68

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34

69

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13

91

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57

HX

14

50

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18

96

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55

08

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59

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73

51

39

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Str

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HX

14

50

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19

16

94I

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12

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59

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HX

14

50

1.1

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TD

19

26

94I

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55

12

25

59

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59

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9.2

81

71

39

80

Str

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61

HX

14

50

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19

37

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55

13

59

59

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92

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62

41

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14

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ev#1

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62;

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grid

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vey

HX

14

50

1.1

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TD

19

47

14

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25

51

44

75

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57

14

61

42

Str

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63

HX

14

50

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19

57

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25

51

53

85

9.4

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17

21

69

Str

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64

HX

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55

15

57

59

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HX

14

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55

16

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59

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17

21

93

Str

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67

HX

14

50

1.2

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TD

19

77

44G

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55

17

32

59

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29

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9.0

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11

65

16

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me

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68

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71

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Str

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69

HX

14

50

1.2

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TD

19

97

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55

19

18

59

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94

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9.3

16

31

32

13

3S

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me

v#1

70

ev#

17

0H

X1

45

01

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CT

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10

07

74G

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55

20

06

59

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41

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9.3

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81

37

13

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71

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1H

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78

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52

33

15

9.2

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14

71

00

Str

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ev#

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v#1

72

HX

14

50

1.2

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TD

11

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78

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25

52

33

85

9.2

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8-1

49

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52

14

71

37

Str

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73

HX

14

50

1.2

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117

84I

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55

23

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74

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10

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42

65

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59

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; eg

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X1

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01

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Ca

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97

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AK

42

65

07

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59

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AK

42

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; eg

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; eg

g ra

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X1

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01

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Live

Net

37

79

GA

K4

26

50

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79

20

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17

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78

HX

14

60

1.0

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87

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AK

42

65

08

26

59

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94

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9.0

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79

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9H

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01

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Live

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39

79

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20

05

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ap

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80

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18

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01

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27

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AK

42

65

08

48

59

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9.0

47

72

00

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Str

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; w

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ev#1

81;

wat

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01

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AK

42

65

09

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59

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9.0

46

71

98

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Str

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#182

; gr

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gev

#182

; gr

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g ex

perim

ent

# 10

HX

14

60

1.0

9C

TD

11

04

79

GA

K4

26

51

20

15

9.4

09

1-1

49

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112

00

20

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me

v#1

83

ev#

18

3H

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46

01

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CT

D1

10

57

9G

AK

42

65

12

36

59

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90

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9.0

48

82

00

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6S

tro

me

v#1

84

ev#

18

4H

X1

46

01

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D1

10

68

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D2

65

14

26

59

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19

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9.1

17

22

04

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ev#1

85;

GA

K4

ev#1

85;

GA

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grid

sur

vey

HX

14

60

1.1

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TD

11

07

81

4GE

26

51

51

95

9.5

52

6-1

49

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31

18

31

76

Str

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ev#

18

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HX

14

60

1.1

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TD

11

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82

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26

51

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05

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78

7-1

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24

18

41

81

Str

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ev#

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HX

14

60

1.1

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TD

11

09

83

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65

16

47

59

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49

-14

8.8

62

31

69

16

5S

tro

me

v#1

88

ev#

18

8H

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46

01

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CT

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110

84

4GL

26

51

73

85

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35

5-1

48

.98

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19

91

94

Str

om

ev#

18

9e

v#1

89

HX

14

60

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alV

ET

88

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AK

42

65

23

29

59

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03

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9.0

47

52

00

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ap

pe

v#1

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ev#

19

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nt#

Inst

rC

ast

Sta

Sta

Day

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Tim

eLa

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ater

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tS

IR

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omm

ents

std

Dep

thD

epth

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 30

HX

14

60

1.1

7C

TD

111

18

5G

AK

42

65

23

39

59

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1-1

49

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81

20

01

96

Str

om

ev#

19

1e

v#1

91

HX

14

60

1.1

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OC

12

85

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K4

26

52

35

55

9.4

110

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72

00

10

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19

2H

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47

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Live

Net

40

86

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27

50

63

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00

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HX

14

70

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111

28

74G

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75

08

47

59

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01

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62

50

Str

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47

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113

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47

01

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114

88

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27

51

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75

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01

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115

88

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27

51

20

55

9.1

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53

14

41

44

Str

om

ev#

20

3e

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03

HX

14

70

1.0

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TD

111

68

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AK

62

75

15

06

59

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93

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34

11

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14

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ev#2

04;

Sew

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ev#2

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Line

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HX

14

70

1.0

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TD

111

79

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AK

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75

15

23

59

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61

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8.7

00

21

92

18

4S

tro

me

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05

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20

5H

X1

47

01

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CT

D1

118

91

GA

K7

27

51

61

25

8.9

71

2-1

48

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20

24

52

35

Str

om

ev#

20

6e

v#2

06

HX

14

70

1.0

9C

TD

111

99

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AK

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75

17

08

58

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21

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60

53

03

29

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tro

me

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07

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20

7H

X1

47

01

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CT

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12

09

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112

75

23

34

59

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23

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9.2

16

01

45

14

2S

tro

me

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08

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20

8H

X1

47

01

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Cal

VE

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93

EX

P11

27

52

34

05

9.1

42

3-1

49

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48

14

51

00

Str

om

ev#

20

9e

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09

HX

14

70

1.1

2M

OC

13

93

EX

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27

52

35

05

9.1

41

7-1

49

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28

14

51

00

Na

pp

ev#

21

0e

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10

HX

14

80

1.0

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TD

11

21

94

GA

K3

28

50

25

85

9.5

53

3-1

49

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91

22

52

09

Str

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X1

48

01

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CT

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12

29

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AK

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85

03

43

59

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74

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56

92

25

21

2S

tro

me

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12

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21

2H

X1

48

01

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CT

D1

12

39

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22

85

04

13

59

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95

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90

92

19

21

8S

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me

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13

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21

3H

X1

48

01

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CT

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12

49

7G

AK

22

85

04

44

59

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12

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27

82

28

22

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me

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14

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21

4H

X1

48

01

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CT

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12

59

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12

85

05

16

59

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83

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9.3

60

92

42

29

Str

om

ev#

21

5e

v#2

15

HX

14

80

1.0

6C

TD

11

26

98

AC

C1

28

50

63

75

9.7

29

0-1

49

.36

30

24

22

40

Str

om

ev#

21

6e

v#2

16

HX

14

80

1.0

7C

TD

11

27

99

GA

K1I

28

50

71

95

9.7

66

0-1

49

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13

26

32

58

Str

om

ev#

21

7e

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17

HX

14

80

1.0

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53

21

10

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CC

12

85

07

47

59

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83

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9.3

61

82

42

10

0N

ap

pev

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; eg

gev

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; eg

g ra

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X1

48

01

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Ca

lVE

T5

32

21

00

AC

C1

28

50

80

05

9.7

25

8-1

49

.36

32

24

21

00

Na

pp

ev#2

19;

egg

ev#2

19;

egg

ratio

HX

14

80

1.1

0C

alV

ET

53

23

10

0A

CC

12

85

08

12

59

.72

22

-14

9.3

63

82

42

10

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ap

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; eg

gev

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g ra

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X1

48

01

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Live

Net

41

10

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CC

12

85

08

26

59

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88

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9.3

64

72

42

50

Da

gg

ev#

22

1;

Neo

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HX

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80

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21

00

AC

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28

50

83

95

9.7

28

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49

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25

24

21

00

Na

pp

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22;

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22;

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nH

X1

48

01

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Live

Net

43

10

0A

CC

12

85

08

50

59

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45

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9.3

64

22

42

10

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ap

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; eg

gev

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tion

HX

14

80

1.1

4C

TD

11

28

10

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CC

12

85

10

00

59

.72

12

-14

9.3

61

82

42

75

Str

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X1

48

01

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CT

D1

12

91

00

AC

C1

28

51

01

65

9.7

28

6-1

49

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18

24

27

5S

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25;

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ing

ev#2

25;

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2H

X1

48

01

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CT

D1

13

01

00

AC

C1

28

51

40

75

9.7

24

7-1

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30

24

22

38

Str

om

ev#

22

6e

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26

HX

14

80

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TD

11

31

10

1G

AK

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85

14

59

59

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60

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96

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HX

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80

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11

32

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12

85

15

33

59

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85

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9.3

61

72

42

23

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me

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28

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22

8H

X1

48

01

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CT

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13

31

03

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28

51

60

55

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91

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62

22

72

22

Str

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22

9e

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29

HX

14

80

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11

34

10

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22

85

16

52

59

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84

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9.2

89

42

20

21

6S

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me

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30

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23

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48

01

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CT

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13

51

05

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51

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9.5

53

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21

52

10

Str

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23

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31

HX

14

80

1.2

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11

36

10

6G

AK

32

85

17

49

59

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32

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9.1

87

02

15

21

2S

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me

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32

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23

2H

X1

48

01

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Cal

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28

52

33

45

9.7

28

0-1

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55

24

21

00

Str

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23

3e

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33

HX

14

80

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4C

TD

11

37

10

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CC

12

85

23

41

59

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59

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9.3

67

62

42

24

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me

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34

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23

4H

X1

49

01

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MO

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41

07

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29

50

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24

21

00

Na

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35

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14

90

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41

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29

50

70

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27

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HX

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90

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50

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26

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24

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13

81

07

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29

50

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HX

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90

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39

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12

95

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56

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52

43

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95

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Sta

Sta

Day

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Tim

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IR

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ents

std

Dep

thD

epth

Page 31: GLOBEC Northeast Pacific, Coastal Gulf of Alaska · 2005-02-03 · GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 2 GLOBEC Northeast Pacific, Coastal Gulf of

GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 31

HX

14

90

1.0

9Li

veN

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81

07

AC

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29

51

31

55

9.7

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24

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51

33

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for

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CT

D1

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95

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57

59

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12

76

26

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13

Str

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HX

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45

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29

51

63

25

9.5

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75

21

42

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Str

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48

HX

14

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11

46

112

GA

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51

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9.6

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21

52

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Str

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HX

14

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11

47

113

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29

51

74

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58

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56

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HX

14

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11

48

114

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51

81

65

9.6

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92

22

72

24

Str

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51

HX

14

90

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11

49

115

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29

51

85

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47

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36

Str

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52

HX

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11

50

116

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51

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26

22

58

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53

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51

117

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115

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52

10

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54

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4H

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49

01

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211

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29

52

03

75

9.8

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97

119

117

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55

HX

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21

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59

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42

69

26

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6H

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23

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57

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62

47

10

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7H

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49

01

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15

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20

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52

33

85

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60

24

72

39

Str

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58

HX

15

00

1.0

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13

05

00

02

59

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71

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9.3

80

62

47

10

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59

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9H

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50

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Ca

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32

41

20

AC

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30

50

63

05

9.7

28

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58

24

71

00

Na

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HX

15

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53

25

12

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13

05

06

42

59

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78

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9.3

73

52

47

10

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X1

50

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Ca

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32

61

20

AC

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30

50

65

35

9.7

27

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49

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82

24

71

00

Na

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HX

15

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91

20

AC

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30

50

72

55

9.7

28

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49

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20

24

7n

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ge

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63

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26

3H

X1

50

01

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GLOBEC Cruise Report, R/V Alpha Helix (HX 244), 17 May - 31 May, 2001 32

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