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Comparison of AVHRR and SMMR data for monitoring vegetation phenology on a continental scaleAVHRR normalized difference vegetation index (NDVI) data for a one-year period were compared with Scanning Multichannel Microwave Radiometer microwave polarization difference temperature (MPDT) data for the study of vegetation phenology. It is shown that the MPDT response differs considerably from the seasonal NDVI pattern. The results do not support the hypothetical relationship between MPDT and leaf water content. It is found that only vegetation types with a substantial seasonal variation in the areal extent of vegetated cover show strong seasonality in MPDT data.
Document ID
19900034622
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Justice, C. O.
(Maryland, University College Park, United States)
Townshend, J. R. G.
(Reading, University United Kingdom)
Choudhury, B. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1989
Publication Information
Publication: International Journal of Remote Sensing
Volume: 10
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
90A21677
Funding Number(s)
CONTRACT_GRANT: NAG5-942
CONTRACT_GRANT: NERC-F60/G6/12
Distribution Limits
Public
Copyright
Other

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