Ionospheric composition measurement by EISCAT using a global fit procedure Lathuillè€re
Abstract. The aim of this paper is to show the gain of the global fit procedure compared to the classical gate-by-gate analysis in the simultaneous determination of the temperatures and composition profiles in the lower F region. A method for the evaluation of the transition altitude and the width o...
| Main Authors: | , |
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| Format: | Text |
| Language: | English |
| Published: |
1983
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.592.7455 http://hal.archives-ouvertes.fr/docs/00/32/90/62/PDF/angeo-14-1496-1996.pdf |
| Summary: | Abstract. The aim of this paper is to show the gain of the global fit procedure compared to the classical gate-by-gate analysis in the simultaneous determination of the temperatures and composition profiles in the lower F region. A method for the evaluation of the transition altitude and the width of the transition region between molecular and atomic ions is described in the case of the EISCAT CP1 experiment; it is validated using a simulated experiment. It is shown that alternating-code gates have to be processed together with the long-pulse gates. Our new method is applied on six days of actual data. The results obtained during quiet periods are compared with independent estimations. 1 |
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