NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
ESTAR - A synthetic aperture microwave radiometer for measuring soil moistureThe measurement of soil moisture from space requires putting relatively large microwave antennas in orbit. Aperture synthesis, an interferometric technique for reducing the antenna aperture needed in space, offers the potential for a practical means of meeting these requirements. An aircraft prototype, electronically steered thinned array L-band radiometer (ESTAR), has been built to develop this concept and to demonstrate its suitability for the measurement of soil moisture. Recent flights over the Walnut Gulch Watershed in Arizona show good agreement with ground truth and with measurements with the Pushbroom Microwave Radiometer (PBMR).
Document ID
19930063680
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Le Vine, D. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Griffis, A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Swift, C. T.
(Massachusetts Univ. Amherst, United States)
Jackson, T. J.
(USDA, Hydrology Lab. Beltsville, MD, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: IGARSS '92; Proceedings of the 12th Annual International Geoscience and Remote Sensing Symposium, Houston, TX, May 26-29, 1992. Vol. 1 (A93-47551 20-43)
Publisher: Institute of Electrical and Electronics Engineers, Inc.
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A47677
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available