ATOC 4710/5710
Introduction to Atmospheric Physics
Spring 2003
Time:
M/W/F 11:00-11:50 amLocation: Duane G-1B27
Instructor: Darin Toohey, Stadium 191, 735-0002, toohey@colorado.edu
Office Hours: M/W/F 10:00-10:50 am
Text: Atmospheric Science: An Introductory Survey, J.M. Wallace and P.V. Hobbs, 1977
Web Page: http://paos.colorado.edu/~toohey/ATOC5710.html
Prerequisites: One year of calculus and one year of physics with calculus
Summary: An understanding of the physics of the earth's atmosphere is important to a number of earth science disciplines, including meteorology and the study of climate and potential change due to anthropogenic activities. Complex numerical models that include basic atmospheric physics are the foundation of forecasts of daily weather and assessments of the impact of human activities on the global environment. Similarly, political strategies to remediate air pollution rely on accurate knowledge of local and regional atmospheric structure and dynamics. This course, the first in a sequence, will introduce the principles of thermodynamics, cloud microphysics, and radiative transfer as they apply to the earth's atmosphere. We will first use these principles to describe the structure and stability of the atmosphere, the distribution of temperature and pressure, and the formation of different types of clouds. We will then examine the earth's radiation budget and the effects of trace gases, aerosols, and clouds on climate.
Grading: Grades will be based on homework (40%), two midterms (15% each), and a final (30%). Homework will be assigned approximately every other week and will be due one week later. Because answers will be put on the web shortly after each assignment is due, late homework will receive partial credit. You are encouraged to discuss the homeworks, but what you turn in should be your own work. An advanced problem will be assigned for those taking 5710 (4710 students will receive extra credit for doing these problems). The midterms will emphasize new material and the final will cover new material as well as review material from the first two midterms.
Class Format: Lectures will include presentation of new material, some problem solving sessions, and reviews.
Policies: If you qualify for accommodations because of a disability, please submit to me a letter from Disability Services (DS) early in the semester so that your needs may be addressed. DS determines accommodations based on documented disabilities (303-492-8671, Willard 322, www.colorado.edu/sacs/disabilityservices)
Please inform the instructor if you observe religious holidays and may miss class on scheduled exam dates. Alternative arrangements will be made in such cases. Campus policies can be found at http://www.colorado.edu/policies/fac_relig.html
Students should consult the following web page,
http://www.colorado.edu/academics/honorcode/ for information regarding CU's new "Honor Code".
Schedule (reading)
A Brief Survey of the Atmosphere (Chapter 1)
Week 1 Origin and composition (1-11)
Week 1/2 Distributions of temperature, pressure, and composition (11-44)
Atmospheric Thermodynamics (Chapter 2)
Week 3 Gas law, hydrostatic balance and scale height (47-61)
Week 3/4 First law of thermodynamics, adiabatic lapse rate (61-71)
Week 4/5 Water vapor, latent heat, and the wet adiabatic lapse rate (71-81)
Week 5 Atmospheric stability and thermodynamic diagrams (81-102)
Midterm 1 Friday, February 14
Clouds and Storms (Chapter 5)
Week 6 Cloud types (215-238)
Atmospheric Aerosol and Cloud Microphysical Processes (Chapter 4)
Week 6/7 Aerosols, cloud nucleation, and droplet growth (143-181)
Week 8 Cold cloud microphysics, precipitation, and thunderstorms (181-201)
Week 9 Atmospheric electricity and lightning (202-209)
Midterm 2 Friday, March 14
Radiative Transfer (Chapter 6)
Week 10 The electromagnetic spectrum, absorptivity, emissivity (279-309)
Spring Break March 24-28
Week 11 Attenuation and scattering of solar radiation, infrared R/T (296-309)
The Global Energy Balance (Chapter 7)
Week 12 Earths changing climate
Week 13 Distribution of solar radiation and energy balance (316-338)
Week 14 Trace gases, aerosols, clouds, and climate change (338-354)
General Circulation (Chapter 9)
Week 15 General Circulation (441-448)
Final exam Saturday, May 3