ATM S 451: Instruments and Observations Sky Imager
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Quiz Dates:

Fridays from Jan 9th through
March 13th
(10 total)
11:30-11:50
(20 mins each)

Class Schedule and grading scheme [pdf]


Homework Assignment on Satellites and Radar [pdf]

 

General Information

Lectures: MWF 11.30-12.20; TTh 10.30-12.20,
ATG 310c
Instructor: Profs. Robert Wood and Joel Thornton

Office Hours: Appointments arranged in class or via e-mail:

Rob Wood:
Room 718 ATG Bldg
robwood@atmos.washington.edu
Phone 543-1203

Joel Thornton:
Room 506 ATG Bldg thornton@atmos.washington.edu
Phone 543-4010

Tools: Lab notebook, available at UBS
Grading: Laboratory work 75%, Weekly quizzes 25%

Topics to be Covered in Course

Introduction/Statistics/Lab Reports/Course expectations: Why observations are important; the usefulness of practical experience; importance of error estimation; how statistics are used to estimate measurement accuracy; populations; simple error propagation and combination of errors; regression and confidence intervals; some simple statistical tests and how/when to use them; the importance of clarity and brevity in report writing; the structure of a scientific report; common mistakes

Temperature measurements and Temperature Laboratory: How is temperature measured? Direct and indirect measurements; concept of calibration; time response; ventilation; laboratory calibration of several different temperature sensors, analysis of data.

Pressure and humidity measurements and Humidity Laboratory: Barometer concepts and instruments; relative and absolute humidity measurement. Importance of calibration. Laboratory calibration and comparison of humidity sensors, analysis of data.

Wind measurement and Wind Tunnel Laboratory: Windfield measurement; vector measurement; different types of anemometer and physical principles involved. Importance of time response; distance constant; sonic anemometry; calibration and comparison of anemometers in the 3x3 wind tunnel, data logging, analysis of time series.

Weather Station Deployment: Choice of sites for deployment; setting up the Davis weather stations; downloading data; importance of instrument support.

Aerosols and Chemistry Laboratory: Measurement of important atmospheric gases (CO, O3); measurements of atmospheric aerosol

Satellite observations: Basic principles; active and passive sensor concepts; EM spectrum, recap of basic radiative transfer; bands used in remote sensing; satellite orbital concepts; orbital parameters; geosynchronous and sunsynchronous orbits; satellite sensors; basic sounding theory; microwave measurements; scatterometry.

Radar remote sensing of precipitation: Basic principles; instrumental set-up; sensitivity; wavelengths used; antenna types/sizes; radar indicators (RHI, PPI, CAPPI); approximate radar equation and what it tells us. Importance of phase (ice/liquid), particle size and shape; doppler radar; practival analysis of radar imagery.

Weather state analysis/project laboratory: Quality control of downloaded datasets; first pass analysis; some basic statistics; identifying project focus; ancillary data.

 

Class Materials

Link to Statistical Tables (Z, student-t, F distribution, Chi-squared)
Error table - classifying different types of error
Laboratory Reports Page

Satellite slides used in class