TOPLA: A new empirical representation of the F-region topside and plasmasphere for the International Reference Ionosphere

Details TOPLA: A new empirical representation of the F-region topside and plasmasphere for the International Reference Ionosphere TOPLA: A new empirical representation of the F-region topside and plasmasphere for the International Reference Ionosphere

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusmsa33a..13b&link_type=abstract

American Geophysical Union, Spring Meeting 2007, abstract #SA33A-13

Physics

2415 Equatorial Ionosphere, 2443 Midlatitude Ionosphere, 2447 Modeling And Forecasting, 2467 Plasma Temperature And Density, 2481 Topside Ionosphere

Scientific paper

The goal of this LWS tools effort is the development of a new data-based F-region TOpside and PLAsmasphere (TOPLA) model for the electron density (Ne) and temperature (Te) for inclusion in the International Reference Ionosphere (IRI) model using newly available satellite data and models for these regions. The IRI model is the de facto international standard for specification of ionospheric parameters and is currently being considered as an ISO Technical Specification for the ionosphere. Our effort is directed towards improving the topside part of the model and extending it into the plasmasphere. Specifically we are planning to overcome the following shortcomings of the current IRI topside model: (1) overestimation of densities above 700 km by a factor of 2 and more, (3) unrealistically steep density profiles at high latitudes during very high solar activities, (4) no solar cycle variations and no semi-annual variations for the electron temperature, (5) discontinuities or unphysical gradients when merging with plasmaspheric models. We will report on first accomplishments and on the current status of the project.

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