NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Measurement of leaf relative water content by infrared reflectanceFrom basic considerations and Beer's law, a leaf water content index incorporating reflectances of wavelengths from 0.76 to 0.90 microns and from 1.55 to 1.75 microns was developed that relates leaf reflectance to leaf relative water content. For the leaf succulent, Agave deserti, the leaf water content index was not significantly different from the relative water content for either individual leaves or an entire plant. Also, the relative water contents of intact plants of Encelia farinosa and Hilaria rigida in the field were estimated by the leaf water content index; variations in the proportion of living to dead leaf area could cause large errors in the estimate of relative water content. Thus, the leaf water content index may be able to estimate average relative water content of canopies when TM4 and TM5 are measured at a known relative water content and fraction of dead leaf material.
Document ID
19870065750
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hunt, E. Raymond, Jr.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; California, University Los Angeles, United States)
Rock, Barrett N.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Nobel, Park S.
(California, University Los Angeles, United States)
Date Acquired
August 13, 2013
Publication Date
August 1, 1987
Publication Information
Publication: Remote Sensing of Environment
Volume: 22
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
87A53024
Funding Number(s)
CONTRACT_GRANT: NSF BSR-84-14455
CONTRACT_GRANT: DE-AC03-76SF-00012
Distribution Limits
Public
Copyright
Other

Available Downloads

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