Weighted Irradiance Data Download
Synthetic Spectra
Synthetic Spectra is an estimation of the continuous spectrum of UV spectral irradiance incident at the surface. It is derived using an algorithm that can be best described as a physically consistent curve fitting algorithm, in which the UV-MFRSR measurements are used to determine a continuous transmittance curve for UV radiation. The transmittance is multiplied by the extra-terrestrial radiation to produce total, diffuse and direct spectral irradiances. For further information see Min and Harrison(1998).

Graphs of the data are available for a time selection of a day. The time period for the graphs will be every 15 minutes between 10:00 am and 3:00 pm local time. The graphs will be displayed along with a tabular view of all data used to create the graph. The tabular view will contain the values for every 3 minutes, instead of the 15 minutes. We also provide a feature to export the data to a file on your local computer in a comma delimited(CSV) format.If your selection is for over a day, a comma separated file will be generated for you to download to your local computer.

Valid date range for location Alaska, Fairbanks, AK02 is from Sat Aug 26 00:00:00 GMT+00:00 2000 to Sat Sep 30 23:04:23 GMT+00:00 2017

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
  • South Korea,Seoul,NASA,KOREA
  • 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
  • Colorado,Longmont,Perm.Reference,CO97
  • Colorado,Longmont,Table Mountain,CO99
  • Colorado,Nunn,Pawnee
  • Hawaii,Waimea,Mauna Loa,HI00
  • Hawaii,Waimea,Mauna Loa,HI03
  • Hawaii,Waimea,Mauna Loa,HI04,ref
  • Hawaii,Waimea,Mauna Loa,HI05
  • Hawaii,Waimea,Mauna Loa,HI06
  • Hawaii,Waimea,Mauna Loa,HI07
  • Hawaii,Waimea,Mauna Loa,HI08
  • Hawaii,Waimea,Mauna Loa,HI09
  • Hawaii,Waimea,Mauna Loa,HI11
  • Hawaii,Waimea,Forrest Mims,HI21
  • Hawaii,Waimea,Forrest Mims,HI22
  • Hawaii,Waimea,Forrest Mims,HI31
  • Hawaii,Waimea,vis cal,HI41
  • Hawaii,Waimea,vis cal,HI51
  • Hawaii,Waimea,vis cal,HI61
  • Hawaii,Waimea,vis cal,HI71
  • Hawaii,Waimea,vis cal,HI81
  • Louisiana,Baton Rouge,SU-Ag
  • Louisiana,Baton Rouge,SU-Ag
  • Maryland,Greenbelt,NASA,MD21
  • Maryland,Greenbelt,NASA,MD22
  • Maryland,Greenbelt,NASA,MD23
  • Texas,Seguin,vis LED unit
  • Short Term Experimental Research Sites
  • Arizona,Tucson
  • Bolivia,Santa Cruz,NASA MD22 in Bolivia
  • California,Mt. Wilson,SCOS-97
  • California,Mt. Wilson,SCOS-97
  • California,Pasadena,NASA
  • California,Riverside,SCOS-97
  • China,Xianghe,NASA
  • Colorado,Fort Collins,CO22
  • Colorado,Fort Collins,CO23
  • Colorado,Fort Collins,CO24
  • Colorado,Longmont,Table Mountain,CO94
  • Colorado,Longmont,Table Mountain,CO95
  • Colorado,Nunn,CO03
  • Colorado,Nunn,CO04
  • Colorado,Nunn,CO05
  • Colorado,Nunn,CO06
  • Colorado,Nunn,CO07
  • Colorado,Nunn,CO09
  • Colorado,Nunn,CO21
  • Colorado,Nunn,CO31
  • Colorado,Nunn,CO61
  • Colorado,Nunn,CO71
  • Colorado,Nunn,CO81
  • Florida,Gainesville,Portable,FL99
  • Greece,Thessaloniki,NASA
  • Indiana,West Lafayette,Portable,IN99
  • Maine,Howland,data by spcl request
  • Mexico,Mexico City,UTTEC T1,MX01
  • Mexico,Mexico City,2003,MX02
  • Mexico,Mexico City,UNAM CASA,MX03
  • Mexico,Mexico City,IMP T0,MX04
  • Mexico,Mexico City,UTTEC T1,MX05
  • Mississippi,Brooksville,vis-MFRSR only
  • Mississippi,Newton,vis-MFRSR only
  • Mississippi,Stoneville,vis-MFRSR only
  • New York,Geneva,Portable,NY99
  • Norway,Oesteraas,NO02
  • Norway,Oesteraas,NO03
  • Texas,Houston,LaPorte Airport
  • Texas,Houston,LaPorte Airport
  • UAE,Dhabi,NASA