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Comparison of the Changes in the Visible and Infrared Irradiance Observed by the SunPhotometers on EURECA to the UARS Total Solar and UV Irradiances

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dc.contributor.author Pap, Judit en_US
dc.date.accessioned 2004-10-03T06:15:55Z
dc.date.available 2004-10-03T06:15:55Z
dc.date.issued 1995-12 en_US
dc.identifier.citation San Francisco, California en_US
dc.identifier.clearanceno 95-1282 en_US
dc.identifier.uri http://hdl.handle.net/2014/31703
dc.description.abstract Solar irradiance in the near-UV (335 nm), visible (500 nm) and infrared (778 nm) spectral bands has been measured by the SunPhotometers developed at the World Radiation Center, Davos, Switzerland on board the European Retrievable Carrier between August 1992 and May 1993. Study of the variations in the visible and infrared irradiance is important for both solar and atmospheric physics. The purpose of this paper is to examine the temporal variations observed in the visible and infrared spectral bands after eliminating the trend in the data mainly related to instrument degradation. The effect of active regions in these spectral irradiances is clearly resolved. Variations in the visible and infrared irradiances are compared to total solar irradiance observed by the SOVA2 radiometer on the EURECA platform and by the ACRIMII radiometer on UARS as well as to UV observations of the UARS and NOAA9 satellites. The space-borne spectral irradiance observations are compared to the photometric sunspot deficit and CaII K irradiance measured at the San Fernando Observatory, California State University at Northridge in order to study the effect of active regions in detail. en_US
dc.format.extent 36397 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject.other EURECA UARS en_US
dc.title Comparison of the Changes in the Visible and Infrared Irradiance Observed by the SunPhotometers on EURECA to the UARS Total Solar and UV Irradiances en_US


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