Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsp33a..05v&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #SP33A-05
Physics
2479 Solar Radiation And Cosmic Ray Effects, 7538 Solar Irradiance, 7549 Ultraviolet Emissions
Scientific paper
In the near future, NOAA will begin long-term measurements of the solar EUV flux for use in models of the thermosphere and ionosphere. The requirement is to determine the flux between 10 and 122 nm however, the spectral region between 40 and 100 nm is difficult to measure using the diode/filter technology that is typically applied to the problem. It has been proposed that a combination of measurements and modeling may satisfy the requirements in this region of the spectrum. Using the NASA TIMED SEE data, we will investigate how well observations in the region of the solar EUV spectrum that is readily observed will track the important spectral features in the part of the spectrum that is more difficult to measure. We will also examine how any uncertainties or errors that are introduced by this approach might translate into errors in modeling of the upper atmosphere. This empirical approach will be examined on hourly to daily time scales and over much of the range from solar maximum to the present, near minimum conditions.
Eparvier Francis
Viereck Rodney
Woods Thomas
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