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Assessment of the Topside Sounder Model Profiler performance

Kutiev, Ivan and Muhtarov, P. and Belehaki, Anna and Reinisch, Bodo and Jakowski, Norbert and Mayer, Christoph (2008) Assessment of the Topside Sounder Model Profiler performance. EGU General Assembly 2008, 2008-04-14 - 2008-04-18, Vienna (Austria).

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In this investigation we apply a model-assisted technique to construct the topside electron density profile.This technique is based on the Topside Sounder Model (TSM), which provides the plasma scale height (Ts), O+/H+ transition height (Th), and their ratio Rt=Ts/Th, derived from topside sounder data of Alouette and ISIS satellites. The Topside Sounder Model Profiler (TSMP) incorporates TSM and uses the model quantities as anchor points for the construction of topside density (Ne) profiles. In the present version, TSMP takes the F2 peak characteristics – foF2, hmF2, and the neutral scale height HmF2 at hmF2– from ground-based Digisonde measurements. Previous investigations have demonstrated that HmF2, used in the Digisondes to construct the topside profiles, is smaller than the topside scale height extracted from topside sounder profiles, at middle latitudes. Therefore the Digisonde scale heights have to be adjusted by a factor estimated for each Digisonde location. When the Digisonde scale height is corrected by this factor, the reconstructed topside profiles are close to those provided by TSM. The new TSMP/Digisonde assisted technique of topside profile construction can improve the topside profiles from the worldwide network of Digisonde sounders. Extensive comparison and verification with ground and satellite derived TEC assesses the performance of the proposed technique. A first indication from the comparison with CHAMP reconstructed profiles shows lower density of TSMP/Digisonde profiles between 400 km and 2000 km. Further comparisons with Vary-Chap profiles and RPI plasmagrams from the IMAGE satellite will lead to useful conclusions concerning the performance of the proposed method up to geosynchronous altitudes.

Item URL in elib:https://elib.dlr.de/54300/
Document Type:Conference or Workshop Item (Speech)
Title:Assessment of the Topside Sounder Model Profiler performance
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kutiev, IvanGeophysical Institute, SofiaUNSPECIFIED
Muhtarov, P.Geophysical Institute, SofiaUNSPECIFIED
Belehaki, AnnaNational Observatory of AthensUNSPECIFIED
Reinisch, BodoCenter for Atmospheric Research, LowellUNSPECIFIED
Date:April 2008
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:ionosphere, topside sounder, scale height, model
Event Title:EGU General Assembly 2008
Event Location:Vienna (Austria)
Event Type:international Conference
Event Dates:2008-04-14 - 2008-04-18
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Ionosphärenerkundung (old)
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Jakowski, Dr.rer.nat. Norbert
Deposited On:10 Jun 2008
Last Modified:27 Apr 2009 14:59

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