NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Relationship of multispectral satellite data to land surface evaporation from the Australian continentBased on NOAA-9 AVHRR and Nimbus-7 SMMR satellite data, satellite indices of vegetation from the Australian continent are calculated for the period of May 1986 to April 1987. Visible (VIS) and near infrared (NIR) reflectances and the normalized difference (ND) vegetation index are calculated from the AVHRR sensor. The microwave polarization difference (PD) is also calculated as the difference between the vertically and horizontally polarized brightness temperatures at 37 GHz. ND, PD, VIS, and NIR indices were plotted against rainfall and water balance estimates of evaporation. It is concluded that direct satellite monitoring of annual evaporation across the Australian continent using PD or VIS satellite indices of vegetation biomass appears possible for areas with evaporation less than 600 mm/y and that use of the ND relationship at continental scale may underpredict monthly evaporation of forests relative to agriculture.
Document ID
19910031874
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Smith, R. C. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Choudhury, B. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1990
Publication Information
Publication: International Journal of Remote Sensing
Volume: 11
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
91A16497
Distribution Limits
Public
Copyright
Other

Available Downloads

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