Accession Number : ADA333469

Title :   Satellite AVHRR Temperature Measurements of Pools 4, 7, and 8 of the Upper Mississippi River System

Corporate Author : WISCONSIN UNIV-LA CROSSE

Personal Author(s) : Weinkauf, Ronald A.

PDF Url : ADA333469

Report Date : NOV 1997

Pagination or Media Count : 23

Abstract : The polar orbiting Advanced Very High Resolution Radiometer (AVHRR) was evaluated as a means of detecting and measuring surface water temperatures of selected Pools of the Upper Mississippi River System in summer 1994 Pools 4, 7, and 8 were monitored and, despite heavy cloud cover and fog, metal results were obtained. Satellite mean temperatures were within about 1 Celsius degree of in situ temperature means for nine observation dates for the three pools. A split window procedure, combining the radiance of thermal infrared bands 4 and 5, greatly improved the accuracy of temperature estimates. Routine temperature monitoring could become a reality when some of the logistical problems encountered in this study are addressed. in particular there is a need to establish improved locational control to the AVHRR pixels more accurately to their surface locations, to provide for systematic surface water data collection on dates of imaging passes, and to link other variables such as water depth and turbidity to the remote temperature measurements.

Descriptors :   *MISSISSIPPI RIVER, *SURFACE TEMPERATURE, *SATELLITE IMAGERY, INFRARED IMAGES, FOG, SURFACE WATERS, ARTIFICIAL SATELLITES, RADIOMETERS, WATER QUALITY, HYDRODYNAMICS, CLOUD COVER, STREAMFLOW ANALYSIS, TURBIDITY.

Subject Categories : Hydrology, Limnology and Potamology
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE