Spectral Irradiance Data Download
  • In Situ calibrated
  • MLO calibrated
  • Historical Lamp calibrated
    • Weighted Irradiance Data Download
  • Erythemal
  • PAR
    • Derived Products Download
  • Daily Sums
  • Contour Maps
  • UV Index
  • Synthetic Spectra
  • Instantenous Optical Depths
  • Average Optical Depths
  • UV Irradiance Estimator
    • Instrument Characteristics Download
  • Filter Function Corrections
  • Angular Cosine Corrections
  • Langley Voltage Offsets
  • Serial Number Deployment History
  • Site Location Deployment History
    • Ancillary Measurements Download
  • Internal Head Temperature
  • Air Temp, Humidity, Reflective Solar Irradiance
  • Barometer
  • Electronic Offset(Bias)
  • Cosine Corrected Voltages
  • UVA (uncalibrated)
  • UVB-1 (uncalibrated)
    • Quality Control Information
  • Data Processing Procedures
  • Data Corrections
  • Quality Control Abbreviations
  • Sunny and Cloudy Days
    • Data Requests
  • Usage Statistics
    • Erythemal Radiation
    Erythemal Radiation is the irradiance in Watts per square meter measured over the 300 through 400 nanometer range and weighted with the Mc Kinlay and Diffey, (1987) action spectrum.

    Valid date range for location Alaska, Fairbanks, AK01 is from Sat Aug 26 00:00:00 GMT+00:00 2000 to Mon Mar 02 00:00:01 GMT+00:00 2015

    Location and Time User Inputs
    • Climatological Sites
    • Alaska,Fairbanks
    • Arizona,Flagstaff
    • California,Davis
    • California,Holtville
    • Colorado,Lamar
    • Colorado,Nunn,Pawnee
    • Colorado,Steamboat Springs
    • Florida,Homestead
    • Georgia,Griffin
    • Hawaii,Waimea,Mauna Loa
    • Illinois,Bondville
    • Indiana,West Lafayette
    • Louisiana,Baton Rouge
    • Maine,Presque Isle
    • Maryland,Beltsville
    • Maryland,Queenstown
    • Michigan,Pellston
    • Minnesota,Grand Rapids
    • Mississippi,Starkville
    • Montana,Poplar
    • Nebraska,Mead
    • New Mexico,Las Cruces
    • New York,Geneva
    • New Zealand,Alexandra
    • North Carolina,Raleigh
    • North Dakota,Fargo
    • Ohio,Oxford
    • Oklahoma,Billings
    • Ontario,Toronto
    • Saskatchewan,Regina
    • Texas,El Paso
    • Texas,Houston
    • Texas,Panther Junction,Castolon site end 12-2014
    • Texas,Panther Junction,K-Bar site opened 12-2014
    • Texas,Seguin
    • Utah,Logan
    • Vermont,Burlington
    • Washington,Pullman
    • Wisconsin,Dancy
    • Long Term Research Sites
    • Hawaii,Waimea,Forrest Mims,HI21
    • Hawaii,Waimea,Forrest Mims,HI31
    • Hawaii,Waimea,Mauna Loa,HI11
    • Hawaii,Waimea,vis cal reference,HI51
    • Hawaii,Waimea,vis cal,HI41
    • Hawaii,Waimea,vis cal,HI61
    • Hawaii,Waimea,vis cal,HI71
    • Louisiana,Baton Rouge,SU-Ag
    • Maryland,Greenbelt,NASA,MD21
    • Texas,Seguin,vis LED unit
    • Short Term Experimental Research Sites
    • Colorado,Fort Collins,CO21
    • Colorado,Fort Collins,CO31
    • Colorado,Nunn,CO71
    • Colorado,Nunn,CO81
    • Maine,Howland,data by spcl request
    • Mexico,Mexico City,UTTEC T1,MX01
    • Mississippi,Brooksville,vis-MFRSR only
    • Mississippi,Newton,vis-MFRSR only
    • Mississippi,Stoneville,vis-MFRSR only
    • Texas,Houston,LaPorte Airport