Measurement : Shortwave narrowband direct normal irradiance

The rate at which radiant energy in narrow bands of wavelengths shorter than approximately 4{mu}m, that comes directly from the Sun without being scattered or absorbed in the atmosphere, passes through a unit area perpendicular to the direction from the Sun.

Categories
Radiometric

Instruments

The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes.

  • ARM Instruments
    • MFRSR : Multifilter Rotating Shadowband Radiometer
    • NIMFR : Normal Incidence Multifilter Radiometer
  • External Instruments
    • USDARAD : US Department of Agriculture (USDA) Radiation Monitoring Data
  • Field Campaign Instruments
    • AOD : Aerosol Optical Depth, derived from MFRSR/NIMFR
    • MFRSR : Multifilter Rotating Shadowband Radiometer
    • TCRSR : Thin Cloud Rotating Shadowband Radiometer

Value-Added Products

  • AOD : Aerosol Optical Depth, derived from MFRSR/NIMFR (Process)
    • MFRSRAOD1MICH : MFRSR: derived total & aerosol optical depth from 1st Michalsky algorithm
    • NIMFRAOD1MICH : NIMFR: derived total & aerosol optical depth from 1st Michalsky algorithm

Datastreams

  • USDARAD : US Department of Agriculture (USDA) Radiation Monitoring Data Datastreams
  • MFRSR : Multifilter Rotating Shadowband Radiometer Datastreams
    • MFRSR : Multi-Filter Rotating Shadowband Radiometer (MFRSR): irradiances
  • NIMFR : Normal Incidence Multifilter Radiometer Datastreams
    • NIMFR : Normal Incidence Multi-Filter Radiometer (NIMFR): direct normal irradiances