NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Thermography for estimating near-surface soil moisture under developing crop canopiesPrevious investigations of thermal infrared techniques using remote sensors (thermography) for estimating soil water content have been limited primarily to bare soil. Ground-based and aircraft investigations were conducted to evaluate the potential for extending the thermography approach to developing crop canopies. A significant exponential relationship was found between the volumetric soil water content in the 0-4 cm soil layer and the diurnal difference between surface soil temperature measured at 0230 and 1330 LST (satellite overpass times of NASA's Heat Capacity Mapping Mission - HCMM). Surface soil temperatures were estimated using minimum air temperature, percent cover of the canopy and remote measurements of canopy temperature. Results of the investigation demonstrated that thermography can potentially be used to estimate soil temperature and soil moisture throughout a complete growing season for a number of different crops and soils.
Document ID
19800048348
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Heilman, J. L.
(South Dakota State Univ. Brookings, SD, United States)
Moore, D. G.
(South Dakota State University Brookings, S. Dak., United States)
Date Acquired
August 10, 2013
Publication Date
March 1, 1980
Publication Information
Publication: Journal of Applied Meteorology
Volume: 19
Subject Category
Earth Resources And Remote Sensing
Accession Number
80A32518
Funding Number(s)
CONTRACT_GRANT: NAS5-24206
Distribution Limits
Public
Copyright
Other

Available Downloads

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