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The use of a vegetation index for assessment of the urban heat island effectA vegetation index and radiative surface temperature were derived from NOAA-11 Advanced Very High Resolution Radiometer (AVHRR) data for the Seattle, WA region from 28 June through 4 July 1991. The vegetation index and surface temperature values were computed for locations of weather observation stations within the region and compared to observed minimum air temperatures. These comparisons were used to evaluate the use of AVHRR data to assess the influence of the urban environment on observed minimum air temperatures (the urban heat island effect). AVHRR derived normalized difference vegetation index (NDVI) and radiant surface temperature data from a one week composite product were both related significantly to observed minimum temperatures, however, the vegetation index accounted for a greater amount of the spatial variation observed in mean minimum temperatures. The difference in the NDVI between urban and rural regions appears to be an indicator of the difference in surface properties (i.e., evaporation and heat storage capacity) between the two environments that are responsible for differences in urban and rural minimum temperatures.
Document ID
19930072027
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gallo, K. P.
(NOAA, Satellite Research Lab. Washington, United States)
Mcnab, A. L.
(NASA Headquarters Washington, DC United States)
Karl, T. R.
(NOAA, Global Climate Lab. Asheville, NC, United States)
Brown, J. F.
(Nebraska Univ. Lincoln, United States)
Hood, J. J.
(EROS Data Center Sioux Falls, SD, United States)
Tarpley, J. D.
(NOAA, Satellite Research Lab. Washington, United States)
Date Acquired
August 16, 2013
Publication Date
July 20, 1993
Publication Information
Publication: International Journal of Remote Sensing
Volume: 14
Issue: 11
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A56024
Distribution Limits
Public
Copyright
Other

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