sit in your group location today! today: test #2
DESCRIPTION
Tuesday Oct 5th. Sit in your group location today! TODAY: TEST #2. Plus, with Question #10 we’ll begin our CLASS BRISTLECONE PINE TREE-RING PROJECT (to collect and analyze data for Assignment I-3) The MIDTERM EXAM is next week: Thursday Oct 14 th - PowerPoint PPT PresentationTRANSCRIPT
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Sit in your group location today! TODAY: TEST #2
Tuesday Oct 5th
Plus, with Question #10 we’ll begin our CLASS BRISTLECONE PINE TREE-RING PROJECT(to collect and analyze data for Assignment I-3)
The MIDTERM EXAM is next week:Thursday Oct 14th
The Midterm STUDY GUIDE will be posted tonight.
Grading is STILL IN PROGRESS for I-1 & I-2Thank you for your patience!
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IMPORTANT UPCOMING CLASSES:TUESDAY
Oct 5
TEST #2
THURSDAYOct 7
Group Tree-Ring Activity for I-3: Day 1
TUESDAYOct 12
Group Tree-Ring Activity for I-3: Day 2
+ Midterm Exam Mini-Review & Practice
THURSDAYOct 14
MIDTERM EXAM
TUESDAYOct 19
Topic #10 & G-3Group Assignment
THURSDAYOct 21
Topic #11RQ-5 due
NOTE: If you miss a Group Activity – you will need to make it up by going to a TA office hour -- plus, YOUR GROUP NEEDS YOU!
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This week only:
My Oct 6th Wed afternoon 2 – 3 pm office hour is cancelled this week due to an unavoidable conflict – please email me to set up an appointment at another time if you need to see me this week.
TA’s will hold theiroffice hours as usual!
http://fp.arizona.edu/kkh/nats101gc/teachingteam.htm
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Review of: INDIVIDUAL TEST PROCESS
Complete silence is needed in the classroom during the INDIVIDUAL TEST.
You should be sitting in the general area of your Group Location and already have an ANSWER FORM -- put your NAME & GROUP # on it NOW if you haven’t yet done so.
When everyone is ready, Dr H & TA’s will pass out the TEST QUESTION SHEET to each student.
Extra forms will be collected – raise your hand if we miscounted so we can collect the extras.
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INDIVIDUAL TEST ANSWER FORM
Be sure to enter yourNAME & GROUP #
on BOTH the TEST QUESTION SHEET & THE
ANSWER FORM
Also enter the TEST #
Today’s Test is #2
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When you have completed your test and filled in the answer form, double check to be sure your NAME & GROUP # are on BOTH the TEST QUESTION SHEET & ANSWER FORMS.
Place the ANSWER FORM (with your name showing) inside your FOLDED TEST QUESTION SHEET as directed to hide your answers, raise your hand & a TA will collect the test items from you
It’s EXTREMELY IMPORTANT to maintain the classroom SILENCE while others are finishing their tests. You WILL disturb your fellow students still taking the test if there is any talking whatsoever!
INDIVIDUAL TEST PROCESS (cont.)
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Nam
e: S
tan
St
Stu
den
t
Gro
up #
0When you are done, fold the TEST QUESTION SHEET in half and place your ANSWER FORM inside with only your NAME & GROUP # showing at the top .
Then raise your hand. Someone will pick it up from you.
PLEASE PROTECT THE INTEGRITY OF YOUR ANSWER FORM & KEEP YOUR ANSWERS COVERED!
Answer Form
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TODAY’S SPECIAL PROCEDURES:
After all individual tests are collected, QUESTION #10 will be explained by Dr H,
THEN you will get into your groups to do the GROUP TEST, followed by QUESTION #10:
(a) Your Individual Skeleton Plot (b) Your Group’s Pattern Matching
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While waiting for others to finish, you may do the following IN SILENCE:
(1) Snooze, daydream, think deeply about GLOBAL CHANGE . . . or plan your weekend
(2)Read the Wildcat – allowed on Test Days only! Or work on materials from ANOTHER CLASS (not ours)
(3) Absolutely no NATS 101–GC CLASS NOTES or laptops out
(4) Absolutely NO PHONES OUT OR TEXTING – we will confiscate them until after class.
(5) THIS IS A TEST! NO leaving the classroom while it is going on – even after you finish your own test! (Wait until group time if you absolutely have to go! If you are feeling ill and it is an emergency -- come down to front of classroom and ask permission)
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OK . . . . Now that we’ve got THAT taken care of . . .
Take a deep breath,Get into THINKING DEEPLY mode . . .
And do a GREAT JOB!!!!
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Nam
e: S
tan
St
Stu
den
t
Gro
up #
0When you are done, fold the TEST QUESTION SHEET in half and place your ANSWER FORM inside with only your NAME & GROUP # showing at the top .
Then raise your hand. Someone will pick it up from you.
PLEASE PROTECT THE INTEGRITY OF YOUR ANSWER FORM & KEEP YOUR ANSWERS COVERED!
Answer Form
REMINDER . . . .
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THE NATS 101-GC TREE-RING
EXTRAVAGANZA!!
Part 1
And now the . . . . .
QUESTION #10
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Question #10 will get you started on:
Assignment I-3(the in-class part)
The Bristlecone Pine (BCP) Activity
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TODAY:Skeleton Plotting your own
core by hand, then
Pattern-Matching with the other students in your group to make a Site Composite, then
Crossdating with the Master Skeleton Plot (assigning Calendar dates to your own plot)
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Your “paper” cores are from
real BRISTLECONE
PINE SITES
(you’ll learn more about them on
Thursday)
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Upper forest border
5 SITES IN WESTERN U.S.
All are Bristlecone Pine sites
Map is onp 135 in
Class Notes
SITE NAME (abrev) CORE ID
Sheep Mt (SHP) CCampito Mt (CAM) DMethuselah Walk B
(MWK)Almagre Mt (ALM) EHermit Lake (HER) A
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SKELETON PLOTTING YOUR OWN CORE
Cartoon Cores from Assignment I-2:
PROJECT’S PAPER CORES:
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PROJECT’S PAPER CORES:
Frost ring = marked by xxxxx
Earlywood & latewood NOT shown
INSTEAD: each narrow ring you should plot is colored in for you (yay!)
REMEMBER: be sure to draw your longest lines for the most narrow rings!
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WHAT ARE FROST RINGS?
Produced by a severe freeze occurring DURING the tree’s growing season
Permanent wood damage in cells, due to freezing & expansion of intercelluar water, can be useful for pattern matching & crossdating!
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SETTING UP YOUR SKELETON PLOT GRAPH PAPER:
Core ID #Your NAME
Starting Flag for Ring 0 (first ring)
Ending Flag for LAST complete (not jagged) RING in core -- plot arrow when finished, not all cores have 60 rings
LABEL intervals of 10
F R
FROST RING
Important: USE A PENCIL not a pen!
Note: be sure to plot your lines so that they reach the bottom edge of the paper!
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Pattern Matching
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Pattern Matching
Student A’s plot
A-1
Student B’s plot
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Making a Site Composite
SITE COMPOSITE = all individual plots from your site pattern-matched & taped together
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Crossdating with the Master
Goal: To assign calendar dates to each of the skeleton plots in your group!
Your 2 pts for yourINDIVIDUAL GRADE for Question #10 are based on:
-- a correct skeleton plot
-- correct dates assigned to your skeleton plot
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Site Skeleton Plot Masters(with dates marked & narrowest
rings shown by long lines)
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Also on the Skeleton Plot Masters you will find
“FROST RING YEARS” marked!
FR = frost ring year
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TODAY – QUESTION #10:
(1) Plot the skeleton plot for the core given to you. (Please DO NOT WRITE ON THE CORE ITSELF)
(2) Be sure your name & the CORE ID # is on your GRAPH PAPER when your PLOT is done.
(3) Pattern match with other students – you’ll tape together the plots into a SITE COMPOSITE when match is made
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TODAY – (cont.)
(4) After the SITE COMPOSITE IS TAPED TOGETHER – Assign starting and ending CALENDAR DATES to each plot in the Composite
(5) When everyone’s plot is dated, carefully take apart the composite and LEAVE you CORE & your PLOT in your GROUP FOLDER for Question #10 validation. – (Be sure your name and Core ID is on your PLOT.
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5 & 63 & 4
11 & 12
7 & 8 9 & 10
15 & 16
13 & 14
17 & 18
1 & 2
19 & 20
“Guest”GTA Erica
Bigio
GTA RebeccaFranklin
GTAElizabeth May
“Guest”GTA Ela
Czyzowska
YOUR FACILITATORSToday: Dr H
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AFTER YOU ARE DONE WITH YOUR GROUP TEST . . . Get your GROUP FOLDER
Then WAIT for your Facilitator to arrive with the plotting materials….
TO SKELETON PLOT YOUR OWN CORE !!
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RECAP: HOW TO SET UP YOUR SKELETON PLOT GRAPH PAPER:
Core ID #Your NAME
Starting Flag for Ring 0 (first ring)
Ending Flag for LAST complete (not jagged) RING in core -- plot arrow when finished, not all cores have 60 rings
LABEL intervals of 10
F R
FROST RING
Important: USE A PENCIL not a pen!
Note: be sure to plot your lines so that they reach the bottom edge of the paper!
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Sit in your group location today! TODAY: CLASS TREE-RING PROJECT
Thursday Oct 7th
The MIDTERM EXAM is next week:Thursday Oct 14th
The Midterm STUDY GUIDE is now posted.
Directions for ASSIGNMENT I-3 are now posted.
Grading is STILL IN PROGRESS for I-1 & I-2Thank you for your patience!
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IMPORTANT UPCOMING CLASSES:THURSDAY
Oct 7
Group Tree-Ring Activity for I-3: Day 1
TUESDAYOct 12
Group Tree-Ring Activity for I-3: Day 2
+ Midterm Exam Mini-Review & Practice
THURSDAYOct 14
MIDTERM EXAM
TUESDAYOct 19
Topic #10 & G-3Group Assignment
THURSDAYOct 21
Topic #11RQ-5 due
NOTE: If you miss a Group Activity – you will need to make it up by going to a TA office hour -- plus, YOUR GROUP NEEDS YOU!
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THE NATS 101-GC TREE-RING
ACTIVITY(cont.)
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9 & 10
17 & 18
15 & 16
1 & 2
19 & 20
7 & 85 & 63 & 4
11 & 12 13 & 14
GTAElizabeth May
GTA RebeccaFranklin
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PART A: SITE DESCRIPTIONS
PART B: COLLECTING DATA & ANALYZING YOUR SITE
PART C: SITE-TO-SITE COMPARISONS
PART D: DEVELOPING & TESTING HYPOTHESES
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PART A:
BRISTLECONE PINE SITE
DESCRIPTIONS
To fill in Table
CLASS NOTES pp135 - 136
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OBSERVATION TABLE (p 136 of Class Notes)
p 136
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Upper forest border
5 SITES IN WESTERN U.S.
All are Bristlecone Pine sites
Map onp 135
SITE NAME (abrev) CORE ID
Sheep Mt (SHP) CCampito Mt (CAM) DMethuselah Walk B
(MWK)Almagre Mt (ALM) EHermit Lake (HER) A
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Upper & Lower Forest
Border:
Temperature-sensitive and Precipitation-
sensitive Trees
Take notesp 136 Table
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SITE 1 (SHP) SHEEP MT, Inyo Range, California
• In the White Mountains near Bishop, California
• Elevation - 3475 meters (~11,500 ft)
• Rock type - dolomiteUpper forest border
seep 136 Table
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SHEEP MT
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SHEEP MT
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SITE 2 (CAM) CAMPITO Mt
• White Mts. Near Bishop California
• Elevation - 3400 meters (~11,000 ft)
• Rock type - sandstone
Upper forest border
seep 136 Table
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CAMPITO MT
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CAMPITO MT
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SITE 3 (MWK) METHUSELAH WALK
• In White Mts near Bishop California
• Elevation - 2805 meters (~ 9200 ft)
• Rock type - Dolomite
Upper forest border
seep 136 Table
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METHUSELAH WALK
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METHUSELAH WALK
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SITE 4 (ALM) Almagre Mt
• located in the Front Range of the Colorado Rockies
• Elevation - 3536 meters (~11,600 ft)
• Rock type - graniteUpper forest border
seep 136 Table
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ALMAGRE MT
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ALMAGRE MT
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SITE 5 (HER) HERMIT LAKE
• located in the Front Range of the Colorado Rockies
• Elevation – 3657 meters(~ 12,000 ft)
• Rock type - sandstone
Upper forest border
seep 136 Table
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HERMIT LAKE
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HERMIT LAKE
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PART B
COLLECT DATA: (from BCP cores) by plotting skeleton plots, pattern matching, & crossdating
ANALYZE DATA: (for your site)By carefully examining core data, skeleton plots, masters, and tree-ring index plots.
Go to: WORKSHEET PART B ( p137)
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For analyzing & answering questions about possible causes for variations in the BCP ring widths – you’ll need to know the following:
• Possible causes for FROST RINGS in BCP
• What the graph of global Northern Hemisphere temperature variations looks like
• What else might enhance growth in trees
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WHAT YOU NEED TO KNOW ABOUT FROST RINGS:
Produced by a severe freeze occurring DURING the tree’s growing season :
2 nights < - 5o C intervening day 0o C
Growing season for high elevation bristlecone pines = June – Aug, continues into September during cooler years (growth is slower during cool summers) and makes them more susceptible to an early frost
Have been linked to global cooling after major volcanic eruptions !!
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Volcanic aerosols in stratosphere from sulfur dioxide gases in eruption can REFLECT back incoming solar radiation global cooling
Graph is onp 72 in Class Notes
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SOME MAJOR VOLCANIC ERUPTIONSOF THE PAST 250 YEARS:
Laki (Iceland) 1783
El Chichon? (Mexico)1809
Tambora (Indonesia)1815
Cosiguina (Nicaragua) 1835
Krakatau (Indonesia)1883
Agung (Indonesia) 1963
El Chichon (Mexico) 1982
Mt Pinatubo (Philippines) 1991
Global cooling can occur for up to 3 years after the eruption!
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PAST NORTHERN
HEMISPHERE TEMPERATURE
VARIATIONS
Graph is on p 78 in CLASS NOTES & in color on p 47 of Dire Predictions
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THE ROLE OF CO2 & TREE GROWTH!
See top of p 76 in Class Notes