Airborne thermography for crop water stress assessmentAircraft overflights to obtain canopy temperatures of six differentially irrigated plots of durum wheat were made at Phoenix, Arizona on 1 and 29 April 1976. The data were acquired by a Texas Instruments model RS-25 infrared line scanner operating in the 8 to 14 micrometer bandpass region. Concurrently, plant water tension was measured on the ground with the Scholander pressure bomb technique. The results indicated that canopy temperatures acquired by aircraft about an hour and a half past solar noon correlated well with presunrise plant water tension - a parameter directly related to plant growth and development. The aircraft data also showed significant within-field canopy temperature variability, indicating the superiority of the synoptic view provided by aircraft over the more spotty view obtained by ground-operated infrared thermometers.
Document ID
19780050977
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Millard, J. P. (NASA Ames Research Center Moffett Field, Calif., United States)
Idso, S. B. (NASA Ames Research Center Moffett Field, CA, United States)
Reginato, R. J. (NASA Ames Research Center Moffett Field, CA, United States)
Jackson, R. D. (NASA Ames Research Center Moffett Field, CA, United States)
Ehrler, W. L. (U.S. Department of Agriculture, Agricultural Research Service, Phoenix Ariz., United States)
Goettelman, R. C. (LFE Corp. Richmond, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Annual Remote Sensing of Earth Resources Conference