january 26, 2014 lab 1a- dimensions & units weather and climate laboratory

January 26, 2014

LAB 1A- DIMENSIONS & UNITSWeather and Climate Laboratory

Info

✤Lab Instructor: Erin Friedman✤esfriedm@hunter.cuny.edu✤Office hours: By appointment✤Office: 1032 HN

Info

✤Weather and Climate Lab ManualPGEOG 130Hunter College Department of Geography Pearson/Prentice Hall, 2009 ISBN-10: 0558271170

Guidelines

✤ Show up to lab on time

✤ Attendance is mandatory

✤ 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.

✤ Must use pencil for lab

✤ Staple lab exercises neatly

Guidelines

✤ 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

Question 10: 2 parts to get answer

in --> mm

mm-->mb (hint: 1.333mb per 1 mm)

Addendum

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

Lab 1E- IsolinesIsotherm

s

Isolines

✤ Connect points of equal value

✤ Ability to represent large scale data

http://www.nc-climate.ncsu.edu/edu/k12/.IsobarIsotherm

Raw temperature dataIsotherm tracings

Isolines

✤ Isobars-connect points of equal atmospheric pressure

✤ 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

LAB TITLE QUESTIONS

Lab 1A Scientific notation All Q

Lab #1B Earth Measures Q 1-5

Lab #1C LocationPart 1: q 1-2, Part 2: q

1-4

Lab #1D Time Part I part 1, q1-4, Part2, q 1a & B

Lab # 1 E Isolines All Q

Materials: Globe, (atlas), calculator, extra paper to fit explanations

Show all work!

Due: Feb 10

Pre-lab quiz for lab 2: Feb 10