NSF UV Spectral Irradiance Monitoring Network, Version 2
Biospherical Instruments Inc. and US National Science Foundation
http://www.biospherical.com/NSF/Version2

available stations via NASA SeaBASS:
* Palmer Station

available data:
* cloud optical depth (files COD*)
* irradiance integrals and dose rates (files DB3*)
* effective albedo (files *Albedo*)
* daily irradiance doses (files *Daily_Dose*)
* total column ozone (files *Total_Ozone*)
* daily irradiance spectra (files in spectra_daily subdirectory)