US Department of Agriculture (USDA) Radiation Monitoring Data (USDARAD)
Instrument Categories: Radiometric
General Overview
![Picture of the USDA radiometer at the SGP site](https://webarchive.library.unt.edu/eot2008/20090508191259im_/https://www.arm.gov/instruments/images/usdarad.jpg)
The USDA UV-B Monitoring and Research Program is a program of the U.S. Department of Agriculture's Cooperative State Research, Education and Extension Service (CSREES). The program was initiated in 1992, through a grant to Colorado State University, to provide information on the geographical distribution and temporal trends of UVB (ultraviolet -B) radiation in the United States.
The SGP ARM site is part of the CSREES's climatological network. All sites are instrumented with both UV and Visible MFRSR shadowband radiometers and broadband UV-B meters. For more details, see the External Data Center web page.
Primary Measurements Taken
The following measurements are those considered scientifically relevant. Refer to the netCDF File Header Descriptions (Data Object Design Files) for the list of all available measurements, including those recorded for diagnostic or quality assurance purposes.
- Atmospheric moisture
- Atmospheric pressure
- Atmospheric temperature
- Shortwave narrowband diffuse downwelling irradiance
- Shortwave narrowband direct normal irradiance
- Shortwave narrowband total downwelling irradiance
Available Datastreams
- usdarad - Visible MFRSR data from USDA
- usdaradaux - auxiliary data for the USDA Visible MFRSR
- usdauvmfrsr - UV MFRSR data from USDA
- usdauvmfrsraux - auxiliary data for the USDA UV MFRSR
Sites / Facilities
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- Southern Great Plains (SGP)