LAB 1A- DIMENSIONS & UNITS
Weather and Climate Laboratory
January 26, 2014
Info
Lab Instructor: Erin Friedman
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esfriedm@hunter.cuny.edu
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Office hours: By appointment
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Office: 1032 HN
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Info
Weather and Climate
Lab Manual
PGEOG 130
Hunter College
Department of
Geography
Pearson/Prentice
Hall, 2009 ISBN-10:
0558271170
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Guidelines
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Show up to lab on time
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Attendance is mandatory
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Lab pre-quizzes given during first 10 minutes of lab; based upon lab chapter. Read lab chapter and textbook to
maximize understanding of material
Lab pre-quiz starts with lab 2
Late labs will be deducted 20 points for each DAY late, unless you have a valid excuse that can be
documented
Labs not handed in class are considered late, even if you place it in my mailbox the same day
If you miss a lab DO NOT wait until the next lab meeting to hand in your lab, place it in my mailbox as soon as
you can in the Geography main office 1006HN (Down the hall); And have an office staff member sign and date
your lab so we can “stop the clock” on points taken off for your lab.
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Must use pencil for lab
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Staple lab exercises neatly
Guidelines
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DON'T expect your instructor to privately tutor you if you come late or leave early
and then have questions.
Xerox copies of your completed lab are not allowed. Only original labs qualify for
submission. You may make a blank copy of a lab and then fill in the answers
showing your work and calculations.
If a problem develops during the semester relating to this course DO NOT LET
THE PROBLEM BECOME SERIOUS BEFORE DISCUSSING IT WITH YOUR
INSTRUCTOR. It is better to talk early-on so we can attempt to find a solution. All
conversations are in strict confidence.
For more info on lab rules visit:
http://www.geography.hunter.cuny.edu/tbw/wc.labs.spring.2014/rules.spring.2011.
htm
Always check your hunter college email for class updates and power points!!!!!
Conversion Examples
Addendum
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Question 10: 2 parts to get answer
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in --> mm
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mm-->mb (hint: 1.333mb per 1 mm)
Time
• 24 standard time zones
• Time zones based on central meridians
spaced 15 degrees apart
• 360 degrees of longitude in 24 hrs
• 360 / 24 = 15 degrees/hr
Time
Calculating Time
• If longitudes are same orientation, subtract
• If longitudes have different orientation, add
• Divide this difference by 15 degrees
Examples
• If it is 9AM Monday in Tucson (110 degrees
W), what time and day is it in NYC (75
degrees W)?
• 110W - 75W = 35 degrees difference
• 35/15 = 2.3 hrs ~ 2hrs
• Ny is east of Tucson, hence 2hrs later -->
11AM Monday
Examples
• Your plane leaves NYC (75 W) at 10AM on
Tuesday, bound for Denver (105 W). The flight
takes 4 hrs. What is the time and day when you
arrive in Denver?
• 105 W - 75 W = 30 degree difference
• 30/15 = 2hrs difference
• Denver is West of NYC, hence it will be earlier
• If it is 10AM in NYC, it is 8AM in Denver.
• 8AM + 4hrs flight = 12PM Tuesday
End of Lab 1A Lecture
Isotherms
Lab 1E- Isolines
Isolines
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Connect points of equal value
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Ability to represent large scale data
Raw temperature data
Isotherm tracings
http://www.nc-climate.ncsu.edu/edu/k12/.IsobarIsotherm
Isolines
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Isobars-connect points of
equal atmospheric pressure
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Isotherms-connect points of equal
temperature
Drawing Isoline Rules
✤Isotherms are drawn at 5 degrees of temperature difference
✤Interpolate values
✤Connect points of equal value
✤Always closed curves even though the map will show part of it
✤Isolines never cross
✤Isolines have a parallel trend
Due: Feb 10
Materials: Globe, (atlas), calculator, extra
paper to fit explanations
Show all work!
LAB
TITLE
QUESTIONS
Lab 1A
Scientific notation
All Q
Lab #1B
Earth Measures
Q 1-5
Location
Part 1: q 1-2, Part 2: q 1-4
Lab #1D
TimePart I
part 1, q1-4, Part2, q 1a &
B
Lab # 1 E
Isolines
All Q
Lab #1C
Pre-lab quiz for lab 2: Feb 10