SMEX02 SMACEX Tower Meteorological/Flux Data: Iowa

Data Contributors PRUEGER, JOHN EICHINGER, WILLIAM KUSTAS, WILLIAM NORMAN, JOHN ALBERTSON, JOHN CAHILL, TONY COOPER, DAN HIPPS, LARRY HATFIELD, JERRY Parameters AIR TEMPERATURE ATMOSPHERIC PRESSURE MEASUREMENTS HEAT FLUX LONGWAVE RADIATION NET RADIATION RADIATIVE FLUX SHORTWAVE RADIATION SOIL TEMPERATURE SURFACE WINDS Instruments ANEMOMETERS CO2 ANALYZERS EDDY CORRELATION DEVICES HUMIDITY SENSORS RADIOMETERS SOIL HEAT FLUX TRANSDUCER SONIC ANEMOMETER THERMOCOUPLES

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Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support for this data set may be limited.

This data set contains meteorological and flux data collected from 16 June 2002 through 09 July 2002 within the Walnut Creek watershed in central Iowa, USA. The data set includes eddy covariance and ancillary data measured from a variety of sensors mounted on meteorological towers in agricultural fields. The study was part of the Soil Moisture Experiment 2002 (SMEX02) and the Soil Moisture Atmosphere Coupling Experiment (SMACEX), run by Canada's National Research Council (NRC). Parameters for this data set include net radiation, air and soil temperature, a variety of flux parameters, mean wind speed/direction, friction velocity, vapor pressure, and other meteorological parameters. Data are provided in tab-delimited ASCII text files and are available via FTP.

These data were collected as part of a validation study for the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). AMSR-E is a mission instrument launched aboard NASA's Aqua Satellite on 04 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.

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Data Citation

The following example shows how to cite the use of this data set in a publication. List the principal investigators, year of data set release, data set title, publisher: NSIDC, and digital media.

Prueger, J., J. Hatfield, J. Albertson, T. Cahill, D. Cooper, B. Eichinger, L. Hipps, B. Kustas, and J. Norman. 2009. SMEX02 SMACEX Tower Meteorological/Flux Data: Iowa. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.

See Also

• AMSR-E Validation Data
• AMSR-E/Aqua Data
• Contact User Services