Title :
Mesospheric temperature sounding with microwave radiometers
Author_Institution :
Aerojet ElectroSyst. Co., Azusa, CA, USA
fDate :
5/1/1989 12:00:00 AM
Abstract :
The problem of allowing for the influence of the Earth´s magnetic field on brightness temperatures in retrieving mesospheric information by use of microwave radiometric measurements is considered. A physically based method for incorporating magnetic field effects within an otherwise linear regression procedure is developed. The resulting algorithm is fast enough to be used operationally for a satellite-borne scanning radiometer system. Error statistics obtained for a small database indicate that considerable improvement over climatological estimates of the state of the mesosphere will be possible up to at least the 0.03-mb level (roughly 73-km altitude)
Keywords :
Zeeman effect; atmospheric radiation; atmospheric spectra; atmospheric techniques; atmospheric temperature; geomagnetism; mesosphere; microwave measurement; microwave spectra of diatomic inorganic molecules; oxygen; radiometry; remote sensing; 1 Pa to 5 kPa; 20 to 90 km; 22.7 to 65.3 muT; 3 Pa; 57.290 to 63.283 GHz; 60.793 GHz; 7.3 km; Earth´s magnetic field; O2 adsorption lines splitting; Zeeman splitting; brightness temperatures; climatological estimates; geomagnetic field; linear regression procedure; mesosphere temperature sounding; microwave radiometric measurements; middle atmosphere; remote sensing; satellite-borne scanning radiometer system; Brightness temperature; Databases; Earth; Error analysis; Information retrieval; Linear regression; Magnetic field measurement; Microwave measurements; Microwave radiometry; Radiometers;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
