1 Ocak 2018 Dergi makalesi Açık Erişim

Gulyaeva, T. L.; Arikan, F.; Sezen, U.; Poustovalova, L. V.

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  <dc:creator>Gulyaeva, T. L.</dc:creator>
  <dc:creator>Arikan, F.</dc:creator>
  <dc:creator>Sezen, U.</dc:creator>
  <dc:creator>Poustovalova, L. V.</dc:creator>
  <dc:date>2018-01-01</dc:date>
  <dc:description>In view of the recent recalibration of the sunspot number time series SSN2, a need has arisen to re-evaluate solar and ionospheric indices in the International Reference Ionosphere, IRI, and its extension to the Plasmasphere, IRI-Plas models, which are developed using the predecessor SSN1 index. To improve efficiency of the model, eight solar proxy indices are introduced in IRI-Plas system: the daily measured solar emissions, the Ottawa 10.7-cm radio flux F10.7 and the H Lyman-alpha line at 121.6 nm; the core-to-wing ratio of the magnesium ion h and k lines at 279.56 and 280.27 nm, MgII index; sunspot number SSN1 observed before 05.2015 and modelled afterwards; re-calibrated SSN2 sunspots time series; the ionosonde foF2-based global IG-index and the Global Electron Content, GEC, index, the new ionospheric TEC-noon index based on GPS-derived Total Electron Content measurements at 288 IGS stations for 1994-2018. The regression relations are deduced between the different solar and ionospheric proxy indices smoothed by 12-month sliding window. The IG, TEC and GEC saturation or amplification effect is observed towards the solar maximum. The SSN1 and F10.7 data serve as a default IRI-Plas input while the rest indices are scaled to SSN1 units envisaged by the F2 layer peak maps. Relevant subroutines are incorporated in IRI-Plas system for automatic conversion of uses predefined index to other related indices which are applied by the different model procedures.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/34605</dc:identifier>
  <dc:identifier>oai:zenodo.org:34605</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 172 122-128</dc:source>
  <dc:title>Eight proxy indices of solar activity for the International Reference Ionosphere and Plasmasphere model</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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