SMEX04 Meteorological Network Data: Arizona

Data Contributors KEEFER, TIMOTHY GOODRICH, DAVID MORAN, SUSAN Parameters AIR TEMPERATURE HUMIDITY > Relative Humidity NET RADIATION PHOTOSYNTHETICALLY ACTIVE RADIATION > Incoming, Reflected SOIL HEAT BUDGET > Soil Heat Flux SOIL MOISTURE/WATER CONTENT SOIL TEMPERATURE SOLAR RADIATION SURFACE PRESSURE > Barometric Pressure SURFACE WINDS > Standard Deviation of Wind Direction, Wind Direction, Wind Speed, Wind Vector Instruments ANEMOMETERS HUMIDITY SENSORS LICOR QUANTUM SENSOR NET RADIOMETERS PRESSURE SENSORS PYRANOMETERS SOIL HEAT FLUX TRANSDUCER SOIL MOISTURE PROBE TEMPERATURE PROBES THERMOCOUPLES WIND VANES

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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 data from in situ meteorological measurements collected during the Soil Moisture Experiment 2004 (SMEX04) in Arizona, USA. The data parameters and sensors include the following: relative humidity and temperature from the temperature and relative humidity probe; wind speed, wind vector, wind direction and standard deviation of wind direction from the 3-cup anemometer and wind vane; barometric pressure from the barometric pressure sensor; solar radiation from the pyranometer; Photosynthetically Active Radiation (PAR) incoming and PAR reflected from the Quantum Sensor; soil heat flux from the soil heat flux plate; soil temperature from the Type T thermocouple wire; net radiation from the net radiometer; and soil moisture from the Theta Probe. Temporal coverage for the data spans 01 June 2004 to 30 September 2004. The total volume of this data set is approximately two megabytes in four ASCII text files. The data 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.

Keefer, T., D. Goodrich, and S. Moran. 2009. SMEX04 Meteorological Network Data: Arizona. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.

See Also

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