SMEX02 Tower-Based Radiometric Surface Temperature, Walnut Creek, Iowa

Data Contributors

JACKSON, THOMAS
COSH, MICHAEL

Parameters

AIR TEMPERATURE
ATMOSPHERIC PRESSURE MEASUREMENTS
BRIGHTNESS TEMPERATURE
SURFACE AIR TEMPERATURE
SURFACE WINDS
VERTICAL WIND MOTION
WATER VAPOR

Instruments

INFRARED RADIOMETERS
INFRARED THERMOMETERS
THERMOMETERS

This data set includes air temperature, vapor pressure, wind speed, and brightness temperatures taken at 12 flux towers as part of the Soil Moisture Experiment 2002 (SMEX02). This study was conducted during June and July 2002 in the Walnut Creek watershed in south-central Iowa, USA. The flux towers contained humidity and temperature probes, infrared thermometers, and anemometers. Data were recorded every 10 minutes from 06 June through 25 July 2002 and are available via FTP.

The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) is an instrument launched aboard NASA's Aqua Satellite on 4 May 2002. AMSR-E validation studies linked to SMEX are designed to evaluate the accuracy of AMSR-E soil moisture data. Specific validation objectives include assessing and refining soil moisture algorithm performance, verifying soil moisture estimation accuracy, investigating the effects of vegetation, surface temperature, topography, and soil texture on soil moisture accuracy, and determining the regions that are useful for AMSR-E soil moisture measurements.

Data Citation

Jackson, T., and M. Cosh. 2003. SMEX02 Tower-Based Radiometric Surface Temperature, Walnut Creek, Iowa. Boulder, CO: National Snow and Ice Data Center. Digital media.