Ionospheric local model and climatology from long-term databases of multiple incoherent scatter radars

Shun-Rong Zhang (1) , John M. Holt (1) , Anthony P. van Eyken (2) , Mary Mccready (3) , Christine Amory-Mazaudier (4) , Shoichiro Fukao (5) , Michael Sulzer (6)

1 MIT Haystack Observatory
2 EISCAT Scientific Association [Sweden]
3 SRI - SRI International [Menlo Park]
4 CETP - Centre d'étude des environnements terrestre et planétaires
5 RISH - Research Institute for Sustainable Humanosphere
6 NAIC - Arecibo Observatory, National Astronomy and Ionosphere Center

Empirical ionospheric local models have been developed from long-term data sets of seven incoherent scatter radars spanning invariant latitudes from 25 to 75 in American, European and Asian longitudes at Svalbard, Tromsø, Sondrestrom, Millstone Hill, St. Santin, Arecibo and Shigaraki. These models, as important complements to global models, represent electron density, ion and electron temperatures, and ion drifts in the E and F regions, giving a comprehensive quantitative description of ionospheric properties. A case study of annual ionospheric variations in electron density and ion temperature is presented based on some of these models. Clear latitudinal, longitudinal, and altitude dependency of annual and semiannual components are found.

Domaines: Astrophysique [astro-ph]; Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Physique des plasmas [physics.plasm-ph]

Shun-Rong Zhang, John M. Holt, Anthony P. van Eyken, Mary Mccready, Christine Amory-Mazaudier, et al.. Ionospheric local model and climatology from long-term databases of multiple incoherent scatter radars. Geophysical Research Letters, 2005, 32 (20), pp.L20102. ⟨10.1029/2005GL023603⟩. ⟨hal-00158334⟩