12th Symposium on Meteorological Observations and Instrumentation


Moisture comparisons using AIRS, GPS, and radiosondes

Larry M. McMillin, NOAA/NESDIS, Camp Springs, MD

The AIRS instrument has numerous channels that respond to moisture. During the vlaidation phase, AIRS data will be matched with radiosondes. When a radiosonde station is close to a GPS ground based moisture observation, the GPS moisure value will be matched as well giving a 3 way match between the AIRS, GPS and radiosnde for total water vapor. The plan is to use the total water vapor from the GPS to screen/adjust the radiosonde moisture to match the GPS total water vapor before using the radiosonde data to validate the AIRS measurements. This 3-way match will provide an opportunity to compare the 3 sources. Since radiosonde types at sites differ, the satellite and GPS data will be used to dtermine biases between radiosonde types. Results from these comparisons will be shown.

Session 9, Remote Sensing Measurement Intercomparisons
Wednesday, 12 February 2003, 8:30 AM-9:30 AM

Previous paper  Next paper

Browse or search entire meeting

AMS Home Page