Short Course on Satellite Meteorology
AMS 78th Annual Meeting
11 January 1998   Phoenix, Arizona
ETA Forecast Used as Initial Conditions for Soundings
 
Forecast Temperature and Moisture Profiles Interpolated to GOES Sounding Location and Time
                                                    Sounder Radiances Computed from ETA Forecast

                                                    Observed Radiances Corrected for Bias Relative to Forecast

                                                    Differences Between Computed and Observed Radiances Used to
                                                    Modify Initial ETA Profile

                                                    Adjustments Made Primarily to Moisture Profile

Two Examples of GOES Soundings/Modification to ETA Forecast:
GOES-9 Sounding - Phoenix, AZ  6 JAN 98  15 GMT
Little Modification to Initial ETA T/Td Forecast
GOES-8 Sounding - Gainesville, FL  6 JAN 98  15 GMT
Significant Modification to Initial ETA Td Forecast
 
 
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