Site (station location)
Boulder, CO, United States
Instrument Type
UV Spectroradiometer
Parameter
Model
UV5
Instrument Status
Active
Periods of Activity
2004
–present
Cooperating Institutions
NOAA/ESRL
NIWA
Data Link
M&A Directory Entry
A. Geddes (NIWA), S. Stierle (NOAA/ESRL), B. Liley, M. Kotkamp — Spectral UV irradiance measurements (285-450 nm) since June 1998. Three different NIWA double monochromators have been used at three sites in and around Boulder. The present instrument (UV5) has been in use since August 2001, and participated in the 2003 International UV Spectroradiometer Intercomparison at Table Mountain, CO. It is calibrated biannually with external reference lamps and weekly stability calibrations are conducted with an internal lamp. Data is archived since 2004.