Short Course on Satellite Meteorology
AMS 78th Annual Meeting
11 January 1998   Phoenix, Arizona
Resolution and Effects of Clouds
 

         GOES Sounder Field of View (FOV) - 10 km at Nadir
 

         Sounder Radiances Processed Using Arrays
 
                    5x5 FOV's - Operational
                    3x3 FOV's - Experimental
 

         Clouds Act as a Radiating Surface, Contaminate IR Sounder Measurements
 

         Individual FOV's Screened for Clouds
 

         Cloud-Free Sounder FOV's Used to Generate Sounding
 
                     4 - 25 Clear FOV's Required - Operational
                     4 - 9   Clear FOV's Required - Experimental

Regional Display - GOES-9 Total Precipitable Water (mm) - Southern Arizona
Typical Sounding Array
Example:  GOES-9 Total Precipitable Water (mm)
9 January 1998   1300 UTC
TPW Values are Color-Coded:
   0 - 9 mm         10 - 19 mm        20 - 29 mm        30 - 39 mm        40 - 49 mm
U.S. TPW Display
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