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Magnesium II Index measurements from SORCE SOLSTICE and GOES-16 EUVS

Published online by Cambridge University Press:  27 November 2018

Martin Snow Open the ORCID record for Martin Snow [Opens in a new window] ,
Janet Machol ,
Francis G. Eparvier ,
Andrew R. Jones ,
William E. McClintock  and
Thomas N. Woods
Martin Snow
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr., Boulder CO 80303, USAsnow@lasp.colorado.edu
Janet Machol
Affiliation:
University of Colorado / Cooperative Institute for Research in Environmental Sciences216 UCB, Boulder CO80309
Francis G. Eparvier
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr., Boulder CO 80303, USAsnow@lasp.colorado.edu
Andrew R. Jones
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr., Boulder CO 80303, USAsnow@lasp.colorado.edu
William E. McClintock
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr., Boulder CO 80303, USAsnow@lasp.colorado.edu
Thomas N. Woods
Affiliation:
University of Colorado / Laboratory for Atmospheric and Space Physics 1234 Innovation Dr., Boulder CO 80303, USAsnow@lasp.colorado.edu
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Abstract

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The solar magnesium II core-to-wing ratio has been a well-studied proxy for chromospheric activity since 1978. Daily measurements at high spectral (0.1 nm) resolution began with the launch of the Solar Radiation and Climate Experiment (SORCE) in 2003. The next generation of measurements from the Extreme Ultraviolet Sensor (EUVS) on the Geostationary Operational Environmental Satellite 16 (GOES-16) will add high time cadence (every 30 seconds) to the observational Mg II irradiance record. We present a comparison of the two measurements during the period of overlap.

Keywords

Sun: UV radiationSun: activityinstrumentation: spectrographs

References

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Snow, M., McClintock, W. E., Woods, T. N., White, O. R., Harder, J. W., & Rottman, G. 2005, Solar Phys., 230, 325–344, doi: 10.1007/s11207-005-6879-0Google Scholar
Snow, M., McClintock, W. E., Crotser, D., & Eparvier, F. G. 2009, Proc. of the SPIE, 7438, article id. 743803, doi: 10.117/12.828566Google Scholar