Record Display for the EPA National Library Catalog

RECORD NUMBER: 5 OF 21

OLS Field Name OLS Field Data
Main Title Broad Spectrum Microwave Systems for Remotely Measuring Soil Moisture Content.
Author Waite, W. P. ; Cook, K. R. ; Bryan., B. B. ;
CORP Author Arkansas Univ., Fayetteville. Water Resources Research Center.
Year Published 1973
Report Number Pub-18; DI-14-31-0001-3557; OWRR-B-020-ARK; W74-07052 ; OWRR-B-020-ARK(1)
Stock Number PB-231 558
Additional Subjects Remote sensing ; Soil water ; Microwave frequencies ; Reflectivity ; Measuring instruments ; Algorithms ; Surface roughness ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-231 558 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 177p
Abstract
A theoretical and experimental study of the microwave reflectivity of soils with varying moisture content was conducted. A system was developed to measure reflectivity over a continuous frequency range of 4 to 26.5 GHz, at incidence angles from 10 degrees to 70 degrees, and with both horizontal and vertical polarization. The measurements were found to be extremely accurate for smooth homogeneous surfaces, however, the effects of surface roughness were more severe than predicted due to the discontinuous nature of naturally occurring rough surfaces. (Modified author abstract)