Regional-scale comparisons of vegetation and soil wetness with surface energy budget properties from satellite and in-situ observations

G. R. Diak, R. M. Rabin, K. P. Gallo, C. M. Neale

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

This study focuses on relationships between vegetation cover, soil moisture, precipitation and evapotranspiration for the Midwest and Great Plains region of the central United States in early June 1988, the year of the Midwest drought. The data base consists of: (1) microwave estimates of soil moisture made using data from the Special Sensor Microwave/Imager (SSM/I); (2) Normalized Difference Vegetation Index (NDVI) estimates made using data from the Advanced Very High Resolution Radiometer (AVHRR); (3) surface-based Antecedent Precipitation Index (API) estimates made using precipitation records from surface reporting stations and; (4) estimates of sensible heating, evapotranspiration and an "effective' surface roughness made for the region using a combination of satellite-measured surface "skin' temperatures from geostationary (GOES) satellites and radiosonde measurements of the time-changes of the height of the planetary boundary layer (DH) from the synoptic network. The scatter diagram of the daytime range (time-change) of surface skin temperature (DTs) versus NDVI over the large region investigated shows a similar pattern to published results for absolute skin temperature measurements versus NDVI over smaller areas (generally the size of a single watershed). -Authors

Original languageEnglish (US)
Pages (from-to)355-382
Number of pages28
JournalRemote Sensing Reviews
Volume12
Issue number3-4
DOIs
StatePublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Instrumentation

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