Passive active L/S-band microwave aircraft sensor for ocean salinity measurements

被引:0
|
作者
Li, FK [1 ]
Wilson, WJ [1 ]
Yueh, SH [1 ]
Dinardo, SJ [1 ]
Howden, S [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源
IGARSS 2000: IEEE 2000 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOL I - VI, PROCEEDINGS | 2000年
关键词
D O I
暂无
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
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.
引用
收藏
页码:2540 / 2542
页数:3
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