CBLASTCBLASTRU05 glider SAM RU05 glider SAM

datadata02/02/0602/02/06

Sampling mapSampling map

Time-space coordination of Time-space coordination of glider and vertical profilingglider and vertical profiling

Water type coordinationWater type coordination

15.5 16 16.5 17 17.5 18 18.5 19 19.531

31.1

31.2

31.3

31.4

31.5

31.6

31.7

31.8

31.9

T

S

092105

16 16.5 17 17.5 18 18.5 19 19.530.8

31

31.2

31.4

31.6

31.8

32

T

S

092005

Vicarious calibration: Vicarious calibration: backscatteringbackscattering

0 0.005 0.01 0.015 0.02 0.025-30

-25

-20

-15

-10

-5

0092105

bbp650

=s1*0.000024-0.0046

VP

glider

=s1*0.00002 – 0.003

Vicarious calibration: Vicarious calibration: attenuationattenuation

0 0.2 0.4 0.6 0.8 1-30

-25

-20

-15

-10

-5

0

cpg650

z

092105

=log(S1/S2)*0.9-0.3=ln(S1/S2)*0.88 – 0.28

VP

glider

Glider SAM: 09/06-10/03 Glider SAM: 09/06-10/03 attenuationattenuation

10 15 20 25 30

2

4

6

8

10

12

wind speed (m s-1)

Glider SAM: 09/06-10/03 Glider SAM: 09/06-10/03 backscatteringbackscattering

Glider SAM: 09/06-10/03 Glider SAM: 09/06-10/03 bbbpbp/c/cpgpg

Glider SAM: 09/06-10/03 Glider SAM: 09/06-10/03 bulk particulate bulk particulate refractive indexrefractive index

np=1+1.671*(bbp650/bp650)^0.582Twardowski et al. 2001

Glider SAM: 09/06-10/03 Glider SAM: 09/06-10/03 bulk particle densitybulk particle density

rho=(np-1.03)/0.15+1.1Twardowski et al. 2004

Glider SAM: 09/06-10/03 Glider SAM: 09/06-10/03 visibilityvisibility

visibility=4.8/(cpg650*1.18 +0.081)Zaneveld and Pegau 2001

Size distribution slope from Size distribution slope from current glider current glider

measurements…?measurements…?

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0 30 60 90 120 150 180

angle (deg)

-S1

2/S

11

, S

22

/S1

1

-S12/S11

S22/S11

Fig. 3. Depolarization ratio and nonsphericity index for a sample from 15 m in the western Atlantic, collected October 19, 2005.

with slope of PSD?

ECO-BB3 bbp(532,650) [unpolarized, S11]SAM bbp(650) [polarized, S11-S12]

Testing depolarization with Testing depolarization with VP dataVP data