meteo 003 section 2 sreece goldberger office hours: thursday 12-2 or by appointment location: 530...

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METEO 003 Section 2 Lab 2: Due Sept. 12 Revisit Lab 1: Wind direction East Wind = Winds are coming from the EAST and moving WEST Easterly Wind = From the East Eastward Wind = From the West Stefan-Boltzmann equation where σ = 5.67x1 if an object has a Temp of 294.15 K and is absorbing 500 of energy we only know if it is increasing or decreasing if we do the math , energy emitted = 306 K Sreece Goldberger email:[email protected] Office hours: Thursday 12-2 or by appointment Location: 530 Walker

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Problem 7a, b: use graph paper or Microsoft Excel Don’t forget to label title, axis, legend, etc. Interpret the graph you make in part a for part b Problem 10a, b: Clouds radiate in all directions Downwelling Radiation – downward emission of infrared energy Carefully read axis/axis labels of graphs The picture on the right is on pg 64, the discussion there may be useful Chapter 2

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Page 1: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

METEO 003

Section 2Lab 2: Due Sept. 12

Revisit Lab 1: • Wind direction

East Wind = Winds are coming from the EAST and moving WESTEasterly Wind = From the EastEastward Wind = From the West

• Stefan-Boltzmann equation where σ = 5.67x1if an object has a Temp of 294.15 K and is absorbing 500 of energy we only know if

it is increasing or decreasing if we do the math , energy emitted = 306 K

Sreece Goldberger email:[email protected] hours: Thursday 12-2 or by appointmentLocation: 530 Walker

Page 2: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

Review of Assignment 1

Page 3: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

• Problem 7a, b:• use graph paper or Microsoft Excel

• Don’t forget to label title, axis, legend, etc.

• Interpret the graph you make in part a for part b

• Problem 10a, b:• Clouds radiate in all directions

• Downwelling Radiation – downward emission of infrared energy

• Carefully read axis/axis labels of graphs

• The picture on the right is on pg 64, the discussion there may be useful

Chapter 2

Page 4: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

Chapter 2: Problem 11a, b:IR Satellite ImageUpwelling Radiation

Why is scale showing temperature for an Infrared Satellite Image?Stefan-Boltzmann equation (E = σT4)

Visible Satellite Image Infrared Satellite Image

Page 5: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

• Chapter 2: Problem 13a, c, d: • UV Index – measurement of the strength of ultraviolet (UV) radiation

from the sun at a particular place and time• Table on page 81 not 83• Reference: http://www.epa.gov/sunwise/doc/uvradiation.html

Matthew D Brothers
Page 6: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

• Chapter 3: Problem 1• Use State College latitude as 40.8N

• Reference pg. 86• Equinoxes: Autumnal and Vernal• Solstices: Summer and Winter

• Determine the maximum altitude of the sun

Example:

Need to know:Latitude of your location: 39NLatitude at which sun is directly overhead: 10N

Difference = 39N – 10N = 29°*Note: be careful when latitudes are in different hemispheres

Maximum altitude of the sun = 90° – D = 90° - 29° = 61°

Matthew D Brothers
Page 7: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

• Chapter 3

• Problem 4, 6, and 9a,b,c:

• Continental locations have larger seasonality than coastal regions

• Prevailing winds off the water result in less seasonality than off the land

Matthew D Brothers
Page 8: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

EXAMPLEAverage January High

Temperature (F)Average July High Temperature (F)

Seasonality (F)

City 1 60 93 33

City 2 58 72 14

City 3 39 90 51

Answer Choices: Oakland, CA Kansas City, MO Savannah, GA

City 2

City 1

City 3

Page 9: METEO 003 Section 2 Sreece Goldberger Office hours: Thursday 12-2 or by appointment Location: 530 Walker

Assignment 2 due Sept. 12Chapter 2 – 7a,b, 10a,b, 11a,b, 13a,c,d

Chapter 3 – 1, 4, 6, 9a,b,c

Useful Equations• From pg. 57, the Stefan-Boltzmann equation E = σT4

• Maximum altitude of the sun = 90° – Difference

Matthew D Brothers