Soil moisture mapping using ESTAR under dry conditions from the Southern Great Plains Experiment (SGP99)

Soil moisture mapping using ESTAR under dry conditions from the Southern Great Plains Experiment (SGP99)

The electronically scanned thin array radiometer (ESTAR) was utilized for soil moisture mapping during the Southern Great Plains Experiment (SGP99). A retrieval algorithm was applied to obtain soil moisture from passive microwave measurements at 1.4 GHz. The algorithm was verified using ground data...

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Veröffentlicht in:IEEE transactions on geoscience and remote sensing 2003-10, Vol.41 (10), p.2392-2397
Hauptverfasser: Guha, Aniruddha, Jacobs, Jennifer M, Jackson, Thomas J, Cosh, Michael H, Hsu, En-Ching, Judge, Jasmeet
Format: Artikel
Sprache:eng
Schlagworte:
algorithms
Applied geophysics
Areal geology. Maps
base maps
dry environmental conditions
Earth sciences
Earth, ocean, space
Electromagnetic heating
Exact sciences and technology
Geologic maps, cartography
Hydrologic measurements
Information retrieval
Instruments
Internal geophysics
Microwave measurements
microwave radiation
Microwave radiometry
Microwave sensors
Moisture measurement
remote sensing
sensors
Soil measurements
Soil moisture
soil water content
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Zusammenfassung:The electronically scanned thin array radiometer (ESTAR) was utilized for soil moisture mapping during the Southern Great Plains Experiment (SGP99). A retrieval algorithm was applied to obtain soil moisture from passive microwave measurements at 1.4 GHz. The algorithm was verified using ground data collected during SGP99. The results indicate a good correlation between observed and predicted soil moisture values and are consistent with results obtained from the same instrument in previous experiments. The present results demonstrate the validity of the retrieval algorithm for moderately to extremely dry soils. The ESTAR measurements along with ancillary data were used to create soil moisture maps of the entire region.
ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.2003.817187