NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Estimation of bare soil evaporation from a multi-frequency airborne SARAn experiment was performed with the NASA/JPL airborne radar polarimeter in Sept. 1989 in an agricultural area near Fresno, CA. Based on 1st-order surface backscattering models, a physically based algorithm for retrieval of soil moisture and surface roughness was developed. It is shown that copolarization ratio is sensitive to soil moisture but not to soil roughness at high incidence angles (between 40 and 60 deg). The derived soil moisture was employed to derive a two-layer heat and energy flux model to estimate evaporation from bare soils.
Document ID
19920058350
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Soares, Joao V. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Shi, Jiancheng (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hess, Laura (California, University Santa Barbara, United States)
Engman, Edwin T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Van Zyl, Jakob (JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: International Symposium on Remote Sensing of Environment
Location: Rio de Janeiro
Country: Brazil
Start Date: May 27, 1991
End Date: May 31, 1991
Sponsors: Society of Latin American Remote Sensing Specialists, Environmental Research Institute of Michigan, INPE
Accession Number
92A40974
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.

Related Records

There are no records associated with this record.
No Preview Available