DocumentCode :
2093769
Title :
Initiatives for millimetre/submillimetre-wave sounding from geostationary orbit
Author :
Bizzarri, Bizzarro ; Gasiewski, Albin ; Staelin, David
Author_Institution :
Ist. Sci. dell´´Atmosfera e del Clima, CNR, Roma, Italy
Volume :
1
fYear :
2002
fDate :
2002
Firstpage :
548
Abstract :
The concept of microwave sounding from geostationary orbit is over three decades old, but can now be facilitated using submillimetre-wave sounding technology. A "GEM" concept has been pursued in the U.S. in the past few years, and now a "GOMAS" proposal has been submitted to ESA for implementation. The principle is to extend the number of bands usually exploited for sounding (54 GHz for temperature and 183 GHz for humidity) to higher frequencies (118 and 425 GHz for temperature, 380 GHz for humidity), so as to obtain higher geometric resolution for a given antenna size. Measurements in absorption bands at frequencies differently affected by liquid and ice water, enable simultaneous retrieval of temperature and humidity profiles, cloud ice and liquid columnar amounts and gross profile and, most important, precipitation, appropriately sampled at time intervals of some 15 minutes. The paper will highlight the basic concepts and technical features of the GEM/GOMAS project and comment about feasibility and sizing elements.
Keywords :
atmospheric humidity; atmospheric precipitation; atmospheric techniques; atmospheric temperature; clouds; radiometry; rain; remote sensing; 100 to 425 GHz; EHF; GEM; GOMAS; THF; atmosphere; cloud; geostationary orbit; humidity; meteorology; microwave radiometry; microwave sounding; millimetre radiometry; mm wave; precipitation; rain; satellite remote sensing; submillimetre radiometry; submm wave; temperature; water vapor; water vapour; Antenna measurements; Extraterrestrial measurements; Frequency; Humidity; Ice; Microwave technology; Millimeter wave technology; Proposals; Submillimeter wave technology; Temperature;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
Type :
conf
DOI :
10.1109/IGARSS.2002.1025102
Filename :
1025102
Link To Document :
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