UV

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.

F. Minvielle, F. Auriol, and C. Brogniez (LOA) – Spectral irradiance measurements (290 – 400 nm) using a Bentham DTMc 300 spectroradiometer that was installed at the end of 2008.

A. de la Casinière and T. Cabot (IRSA-UJF Grenoble) — Measurements of spectral UV irradiance with spectroradiometer (IRSA, Bentham DM150 system) operational from 2001 to 2005.

A. de la Casinière and T. Cabot (IRSA - UJF Grenoble) — Measurements of spectral UV irradiance with spectroradiometer (SPUV02, JY HD10 system) operational from 2000 to 2003. The instrument was intercompared at Huelva, Spain in 2002.

P. Werle (IMK-IFU) — Measurements of spectral distribution of UV irradiance using a double monochromator Bentham DTM300V since 1995. Work initiated here and at Garmisch for the ground truthing of satellite-derived UV maps. Early data archived under previous PIs Seckmeyer and Theil.

P. Werle (IMK-IFU) — Measurements of spectral distribution of UV irradiance using a double monochromator Bentham DTM300V since 1994.  Work initiated here and Zugspitze for the ground truthing of satellite-derived UV maps.  Operations were suspended in 2002.  Data archived under previous PIs Seckmeyer and Thiel.

S. Simic and D. Rauter (BOKU-Met) — Measurement of the spectral distribution of UV irradiance (290 – 500 nm) with a Bentham DM150 spectroradiometer.  Observations started in February 1997.

S. Simic and D. Rauter (BOKU-Met) — Measurement of the spectral distribution of UV irradiance (290 – 500 nm) with a Bentham DM150 spectroradiometer.  Observations started in February 1998.

F. Minvielle, F. Auriol, and C. Brogniez (LOA) — Measurements of spectral UV irradiance (290 – 450 nm) with a double monochromator (JY HD10) were initiated in May 1997 and continued through 2008 with some interruptions due to instrument problems.  The instrument took part in the SUSPEN intercomparison campaign (July 1997), and the QASUME instrument validation project (September 2004).  In 2008 the JY HD10 was replaced with a Bentham DTMc300 spectroradiometer for which data are available beginning in 2009.

G. Bernhard (Biospherical Instruments) and J. E. Frederick (U. Chicago) – Measurement of spectral irradiance between 280 and 600 nm with an SUV-100 spectroradiometer.  The instrument is calibrated with standard lamps every two week. Observations started in December 1990. The system was part of the National Science Foundation’s Arctic Observing Network and was decommissioned in July 2016 due to the lack of funds.  It is currently stored at the NOAA facility in Barrow while new funding is sought.