SOIL WATER CONTENT AND EVAPORATION DETERMINED BY THERMAL PARAMETERS OBTAINED FROM GROUND-BASED AND REMOTE MEASUREMENTS

Soil water contents from both smooth and rough bare soil were estimated from remotely sensed surface soil and air temperatures. We found an inverse relationship between two thermal parameters and gravimetric soil water content for Avondale loam when its water content was between air-dry and field capacity. These parameters, daily maximum minus minimum surface soil temperature and daily maximum soil minus air temperature, appear to describe the relationship reasonably well. These two parameters also describe relative soil water evaporation (actual;potential). Surface soil temperatures showed good agreement between three measurement techniques; in situ thermocouples, ground-based infrared radition thermometer, and the thermal infrared band of an airborne mutispectral scanner. /Author/

• Corporate Authors:

  American Geophysical Union

  1909 K Street, NW, Division of Hydrology
  Washington, DC  United States  20006
• Authors:
  • Reginato, R J
  • Idso, S B
  • Vedder, J F
  • Jackson, R D
  • Blanchard, M B
  • Goettelman, R
• Publication Date: 1976-3-20

Media Info

• Features: Figures; References;
• Pagination: p. 1617-20
• Serial:
  • Journal of Geophysical Research
  • Volume: 81
  • Issue Number: 9
  • Publisher: American Geophysical Union

Subject/Index Terms

• TRT Terms: Estimating; Evaporation; Heat radiation; Infrared radiation; Loam; Moisture content; Remote sensing; Soil water; Soils; Surface temperature; Temperature; Thermocouples
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00131778
• Record Type: Publication
• Files: TRIS
• Created Date: May 14 1976 12:00AM