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Ultraviolet Solar Spectral Irradiance Variation on Solar Cycle Timescales

Published online by Cambridge University Press:  27 November 2018

Martin Snow Open the ORCID record for Martin Snow [Opens in a new window] ,
Francis G. Eparvier ,
Jerald Harder ,
Andrew R. Jones ,
William E. McClintock ,
Erik Richard  and
Thomas N. Woods
Martin Snow
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr, Boulder CO 80303, USA email: snow@lasp.colorado.edu
Francis G. Eparvier
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr, Boulder CO 80303, USA email: snow@lasp.colorado.edu
Jerald Harder
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr, Boulder CO 80303, USA email: snow@lasp.colorado.edu
Andrew R. Jones
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr, Boulder CO 80303, USA email: snow@lasp.colorado.edu
William E. McClintock
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr, Boulder CO 80303, USA email: snow@lasp.colorado.edu
Erik Richard
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr, Boulder CO 80303, USA email: snow@lasp.colorado.edu
Thomas N. Woods
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr, Boulder CO 80303, USA email: snow@lasp.colorado.edu
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Abstract

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Ultraviolet (UV) Solar spectral Irradiance (SSI) has been measured from orbit on a regular basis since the beginning of the space age. These observations span four Solar Cycles, and they are crucial for our understanding of the Sun-Earth connection and space weather. SSI at these wavelengths are the main drivers for the upper atmosphere including the production and destruction of ozone in the stratosphere. The instruments that measure UV SSI not only require good preflight calibration, but also need a robust method to maintain that calibration on orbit. We will give an overview of the catalog of current and former UV SSI measurements along with the calibration philosophy of each instrument and an estimation of the uncertainties in the published irradiances.

Keywords

Sun: UV radiationSun: activityinstrumentation: spectrographs
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S340: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles , February 2018 , pp. 203 - 208
Copyright
Copyright © International Astronomical Union 2018 

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