The data files in all directories have been updated to reflect application of correct calibration constants. If you have acquired data files from these directories prior to 3-1-96 please disregard old calibration constants and use the current ones. The 1995 UV-B Spectroradiometer Intercomparison was held at the Table Mountain Test Facility Boulder, Colorado June 14-23 1995. Files containing the spectral and ancillary data can be found at the NOAA/ERL/ARL/Surface RadiationResearch Branch anonymous ftp site. ftp --> login as password SITE LOCATION: Latitude: 40.125 degrees (40, 7', 30") North Longitude: 105.237 degrees (105, 14', 13.2") West Elevation: 1,689 m The directory tree is arranged as follows; Intecomparison_95- -spectral_data/- (This data has not been released by NIST as of 2-26-96) Ancillary data can be found in the following sub-directories; -cavity/ (Cavity radiometer) -guv511/ (Biospherical GUV-511) -met/ (Meteorological data) -mfrsr/ (Multi-filter Rotating Shadowband) -pir/ (Precision Infrared Radiometer) -psp/ (Spectrosun Solar Pyranometer) -solar/ (Solar Light 501 UVB Radiometer) -vital/ (Vital BW 100) -yankee/ (Yankee UVB-1 Radiometer) Each of the sub-directories contains a readme document that explains the contents of that sub-directory. Contact: Patrick Disterhoft (303) 497-6355 or email: dister@srrb.noaa.gov