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Vertical electron density profiles from GRACE radio occultation measurements

Jakowski, N. and Hoque, Mohammed M. and Koch, Christian and Wickert, J. and Grunwaldt, L. and Heise, S. and Köhler, W. (2010) Vertical electron density profiles from GRACE radio occultation measurements. GRACE Science Team Meeting, 11. - 12. Nov. 2010, Potsdam, Deutschland.

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The GNSS radio occultation technique is a powerful tool for retrieving vertical profiles of electron density of the global ionosphere from satellite orbit down to E-layer heights. Thus, ionospheric radio occultation (IRO) measurements onboard CHAMP enabled us to retrieve more than 300,000 vertical electron density profiles since 2001. Continuing the close cooperation between GFZ and DLR in using GRACE IRO data, we could derive more than 60,000 profiles since 2007 so far. This large number of profiles provides a reliable basis for statistical analysis. Here we report results obtained from ionospheric radio occultation (IRO) measurements onboard the GRACE-A satellite in comparison with IRO results from equivalent measurements onboard CHAMP and COSMIC satellites. Considered are ionospheric key parameters such as peak electron density NmF2, height of F2 layer maximum hmF2 and Total Electron Content (TEC). Combining the electron density retrievals of various satellites, there is a great potential for developing and improving global ionospheric models and tomographic reconstructions.

Item URL in elib:https://elib.dlr.de/68018/
Document Type:Conference or Workshop Item (Speech)
Title:Vertical electron density profiles from GRACE radio occultation measurements
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jakowski, N.norbert.jakowski (at) dlr.deUNSPECIFIED
Hoque, Mohammed M.Mainul.Hoque (at) dlr.deUNSPECIFIED
Koch, ChristianChristian.Koch (at) dlr.deUNSPECIFIED
Wickert, J.GeoForschungsZentrum PotsdamUNSPECIFIED
Grunwaldt, L.GeoForschungsZentrum PotsdamUNSPECIFIED
Heise, S.GeoForschungsZentrum PotsdamUNSPECIFIED
Köhler, W.GeoForschungsZentrum PotsdamUNSPECIFIED
Date:November 2010
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Ionosphere, radio occultation, GNSS, electron density, GRACE
Event Title:GRACE Science Team Meeting
Event Location:Potsdam, Deutschland
Event Type:international Conference
Event Dates:11. - 12. Nov. 2010
Organizer:GFZ Potsdam
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 Jan 2011 08:33
Last Modified:31 Jul 2019 19:30

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