NDLI: Microwave remote sensing of soil water content

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Microwave remote sensing of soil water content

Content Provider	NASA Technical Reports Server (NTRS)
Author	Cihlar, J. Ulaby, F. T.
Copyright Year	1975
Description	Microwave remote sensing of soils to determine water content was considered. A layered water balance model was developed for determining soil water content in the upper zone (top 30 cm), while soil moisture at greater depths and near the surface during the diurnal cycle was studied using experimental measurements. Soil temperature was investigated by means of a simulation model. Based on both models, moisture and temperature profiles of a hypothetical soil were generated and used to compute microwave soil parameters for a clear summer day. The results suggest that, (1) soil moisture in the upper zone can be predicted on a daily basis for 1 cm depth increments, (2) soil temperature presents no problem if surface temperature can be measured with infrared radiometers, and (3) the microwave response of a bare soil is determined primarily by the moisture at and near the surface. An algorithm is proposed for monitoring large areas which combines the water balance and microwave methods.
File Size	9531386
Page Count	196
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19760005358
Archival Resource Key	ark:/13960/t6d26q413
Language	English
Publisher Date	1975-08-01
Access Restriction	Open
Subject Keyword	Earth Resources And Remote Sensing Remote Sensors Hydrology Algorithms Soil Moisture Moisture Content Dielectric Properties Microwave Sensors Mathematical Models Brightness Temperature Temperature Profiles Water Balance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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