TOPEX Microwave Radiometer

National Aeronautics and Space Administration, NASA Jet Propulsion Laboratory

The TOPEX/Poseidon microwave radiometer was a three-frequency sensor used to estimate the atmospheric water vapor content in the nadir column through which the altimeter signal is traveling. Since water vapor distorts the altimeter's reading, the water vapor content is measured to correct the altimetry measurement. The sensor uses one frequency to make the measurement, and two frequencies to remove the effects of wind speed and cloud cover. There is a backup receiver for the measurement frequency.

sealevel.jpl.nasa.gov

Platforms :

Also known as :

• instrumentID 763 (ceos lexicon)
• Instrument TMR (ceos lexicon)
• instrument c1a69b2c-52ff-4eb3-8e29-f1aaf5c0733c (gcmd lexicon)
• Sensor TOPEX MICROWAVE RADIOMETER (podaac lexicon)