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The Influence of Antenna Pattern on Faraday Rotation in Remote Sensing at L-bandFaraday rotation is a change in the polarization vector of electromagnetic radiation that occurs as the waves propagate from the Earth surface through the ionosphere to a spaceborne sensor. This change can cause errors in monitoring parameters at the surface such as soil moisture and sea surface salinity and it is an important consideration for radiometers on future missions in space such as NASA's Aquarius mission and ESA's SMOS mission. Two prominent strategies for compensating for Faraday rotation are using a sum of the signal at two polarizations and using the correlation between the signals at the two polarizations. These strategies work for an idealized antenna. This paper evaluates the strategies in the context of realistic antennas such as will be built for the Aquarius radiometer. Realistic antennas will make small differences that need to be included in planning for retrieval algorithms in future missions.
Document ID
20070021381
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
LeVine, David M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Jacob, S. Daniel
(Maryland Univ. Baltimore, MD, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: IGARSS 2007
Location: Barcelona
Country: Spain
Start Date: July 23, 2007
End Date: July 27, 2007
Distribution Limits
Public
Copyright
Public Use Permitted.
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