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Airborne Observation of ocean surface roughness variations using a combination of microwave radiometer and reflectometer systems - The second Virginia offshore (Virgo II) experiment

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Airborne Observation of ocean surface roughness variations using a combination of microwave radiometer and reflectometer systems - The second Virginia offshore (Virgo II) experiment

Content Provider	IEEE Xplore Digital Library
Author	Burrage, D. Wesson, J. Wang, D. Garrison, J. Quindara, N. Ganoe, G. Katzberg, S.
Copyright Year	2012
Description	Author affiliation: Oceanography Division, Naval Research Laboratory, Stennis Space Center, MS, USA (Burrage, D.; Wesson, J.; Wang, D.) \|\| Radio Navigation Laboratory, Purdue University, West Lafayette, IN, USA (Garrison, J.; Quindara, N.) \|\| NASA Langley Research Center, Hampton, VA, USA (Ganoe, G.; Katzberg, S.)
Abstract	Airborne and satellite retrieval of Sea Surface Salinity (SSS) using L-band microwave radiometers requires accurate corrections for the influence of wind-induced Sea Surface Roughness (SSR) on the retrievals. We describe an airborne experiment, Virgo II, that combined an L-band microwave radiometer for retrieving SSS, with L- and S-band reflectometer systems for retrieving SSR descriptors including Mean Square Slope (MSS) and Wind Speed (WS) under a range of surface wind and wave conditions. The research objective is to use the SSR descriptors derived from the reflectometers to correct the brightness temperatures observed by the L-band radiometer, and produce more accurate SSS retrievals. Here we describe our experimental investigations to assess the feasibility of this approach. Preliminary comparisons of WS data retrieved from the reflectometers with coincident WS data from in situ platforms and an atmospheric circulation model indicate that after correcting for apparent biases, the reflectometry-derived SSR descriptors could, indeed, provide reliable corrections for the L-band radiometer salinity retrieval.
Starting Page	1
Ending Page	7
File Size	1715895
Page Count	7
File Format	PDF
ISBN	9781467328838
e-ISBN	9781467328852
e-ISBN	9781467328845
DOI	10.1109/GNSSR.2012.6408260
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sea surface salinity Sea surface roughness Brightness temperatures Delay Doppler map Rough surfaces L-band Ocean temperature Microwave radiometry and reflectometry Global Positioning System Storms Bi-static radar Wind speed Microwave radiometry
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Airborne Observation of ocean surface roughness variations using a combination of microwave radiometer and reflectometer systems - The second Virginia offshore (Virgo II) experiment

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Airborne Observation of ocean surface roughness variations using a combination of microwave radiometer and reflectometer systems - The second Virginia offshore (Virgo II) experiment