Mapping surface energy balance components by combining landsat thematic mapper and ground-based meteorological data
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Abstract
Surface energy balance components were evaluated by combining satellite-based spectral data with on-site measurements of solar irradiance, air temperature, wind speed, and vapor pressure. Maps of latent heat flux density (λE) and net radiant flux density (Rn) were produced using Landsat Thematic Mapper (TM) data for three dates: 23 July 1985, 5 April 1986, and 24 June 1986. On each date, a Bowen-ratio apparatus, located in a vegetated field, was used to measure λE and Rn at a point within the field. Estimates of λE and Rn were also obtained using radiometers aboard an aircraft flown at 150 m above ground level. The TM-based estimates differed from the Bowen-ratio and aircraft-based estimates by less than 12 % over mature fields of cotton, wheat, and alfalfa, where λE and Rn ranged from 400 to 700 Wm−2.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Mapping surface energy balance components by combining landsat thematic mapper and ground-based meteorological data |
| Series title | Remote Sensing of Environment |
| DOI | 10.1016/0034-4257(89)90049-7 |
| Volume | 30 |
| Issue | 1 |
| Year Published | 1989 |
| Language | English |
| Publisher | Elsevier |
| Description | 11 p. |
| First page | 77 |
| Last page | 87 |