ATM 348
Atmospheric Physics

Tues/Thurs 4:45-6:00 pm


Prof. Marat Khairoutdinov

Office hours

by email appt or, if urgent, just stop by; Endeavour 121


Textbooks (optional)

"Atmospheric Science" by J. Wallace and P. Hobbs, Academic Press, 2nd edition 
"A Short Course in Cloud Physics" by R.R. Rogers and M.K. Yau, 3rd edition (recomended)
"An Introduction to Boundary Layer Meteorology" by R. B. Stull, 1988 edition


25% Homework
70% 2 exams
5% Class participation

Each unexcused absence - minus 3%;
Grade conversion: A: >90, B+: 86-90, B: 76-85, C+: 70-75, C: <70 but > 65; failed if <65
The final score can be adjusted upward depending on the overall performance and activity during the class.


Homework is handed out biweekly or so. After the due date, homework can be turned in for 50% credit. Homework can be discussed with other students; however, each student is expected to write the solutions independently. Zero tolerance for plagiarism. If you copy the solution/answer from the web, make sure to at least change the wording. Intentional use of phone  during my class is prohibited. Noone is allowed to simply leave the classroom, for bathroom or other reasons, without my explicit permission.


Cloud formation; Types of clouds;
Saturation over curved surface; Homogeneous Condensation of Water Vapor;
Heterogeneous nucleation; Cloud Condensation Nuclei;
Diffusional growth of droplets; Growth of population of droplets;
Microphysics of Warm Clouds; Formation of Precipitation in Warm Clouds;
Microphysics of Cold Cloud; Formation of Precipitation in Cold Clouds;
Weather Modification and Cloud Seeding; Thunderstorm Electrification;
Spectrum of radiation; Blackbody Radiation; Scattering and Absorption;
Reflection and Refraction; Cloud Radar; Radiances and Fluxes;
Radiative Transfer; Earth Radiation Budget;
Radiation and Climate; Paleoclimates

Equation of State
First Law of Thermodynamics
Entropy and Potential Temperature
Stability of Dry Air
Saturation Vapor Pressure
Moist Variables
Stability of Saturated Air
Movie (entraining clouds)
Movie (rain)
Droplet Curviture Effect on Saturation
Kohler Theory of CCN
Diffusional Growth of Cloud Droplets
Growth of droplets in Steady Updraft
Rain Production by Collision-Coalescence
Rain Formation
Ice Microphysics; Lightning; Weather Modification
Atmospheric Boundary Layer
ABL: Special Effects
Atmospheric Radiation Effects
Blackbody Radiation
Greenhouse effect and Climate Sensitivity
Clouds and Climate
Climate: past, present, the future

Useful Videos

Simulation of Homogenious Nucleation of Droplets
Simulation of Freezing of Water
Lightning: Stepped Leader
Evolution of PBL from Lidar
Superstorm (BBC, destruction of NYC)


Americans with Disabilities Act
If you have a physical, psychological, medical or learning disability that may impact your course work, please contact Disability Support Services, ECC (Educational Communications Center) Building, room 128, (631) 632-6748. They will determine with you what accommodations are necessary and appropriate. All information and documentation is confidential.
Students requiring emergency evacuation are encouraged to discuss their needs with their professors and Disability Support Services. For procedures and information, go to the following web site.
Academic Integrity Statement
Each student must pursue his or her academic goals honestly and be personally accountable for all submitted work. Representing another person's work as your own is always wrong. Any suspected instance of academic dishonesty will be reported to the Academic Judiciary. For more comprehensive information on academic integrity, including categories of academic dishonesty, please refer to the academic judiciary website at
Adopted by the Undergraduate Council September 12, 2006