DocumentCode :
352547
Title :
Passive Active L/S-band microwave aircraft sensor for ocean salinity measurements
Author :
Li, Fuk K. ; Wilson, William J. ; Yueh, Simon H. ; Dinardo, Steven J. ; Howden, Stephan
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Volume :
6
fYear :
2000
fDate :
2000
Firstpage :
2540
Abstract :
A Passive/Active L/S-band (PALS) microwave aircraft instrument to measure ocean salinity has been built and tested. Because the L-band brightness temperatures associated with salinity changes are expected to be small, it was necessary to build a very sensitive and stable system. This new instrument has dual-frequency, dual polarization radiometer and radar sensors. The antenna is a high beam efficiency conical horn. The PALS instrument was installed on the NCAR C-130 aircraft and salinity measurement missions were flown on July 17-19, 1999, southeast of Norfolk, Virginia over the Gulf Stream. The measurements indicated a clear and repeatable salinity signal during these three days, which was in good agreement with the R/V Cape Hatteras salinity data. Data was also taken in the open ocean and a small decrease of 0.2 K was measured in the brightness temperature, which corresponded to the salinity increase of 0.4 psu measured by the M/V Oleander vessel
Keywords :
airborne radar; oceanographic equipment; oceanographic techniques; radiometers; remote sensing; remote sensing by radar; Gulf Stream; L-band; North Atlantic; PALS; Passive/Active L/S-band; S-band; UHF; airborne radar; airborne system; brightness temperature; conical horn; dual polarization radiometer; dual-frequency; equipment; instrument; measurement technique; microwave aircraft sensor; microwave radiometry; ocean; radar remote sensing; salinity; sea surface; Aircraft manufacture; Antenna measurements; Brightness temperature; Instruments; L-band; Microwave measurements; Microwave sensors; Ocean salinity; Sea measurements; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-6359-0
Type :
conf
DOI :
10.1109/IGARSS.2000.859633
Filename :
859633
Link To Document :
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