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A new electron density model of the plasmasphere for operational 3 applications and services

Jakowski, Norbert and Hoque, Mohammed Mainul (2018) A new electron density model of the plasmasphere for operational 3 applications and services. Journal of Space Weather and Space Climate. EDP Sciences. DOI: 10.1051/swsc/2018002 ISSN 2115-7251 (In Press)

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Official URL: https://www.swsc-journal.org/


The Earth's plasmasphere contributes essentially to total electron content (TEC) measurements 10 from ground or satellite platforms. Furthermore, as an integral part of space weather, associated 11 plasmaspheric phenomena must be addressed in conjunction with ionosphere weather monitoring by 12 operational space weather services. For supporting space weather services and mitigation of propagation 13 errors in Global Navigation Satellite Systems (GNSS) applications we have developed the empirical 14 Neustrelitz plasmasphere model (NPSM). The model consists of an upper L shell dependent part and a lower 15 altitude dependent part, both described by specific exponential decays. Here the McIllwain parameter L 16 defines the geomagnetic field lines in a centered dipole model for the geomagnetic field. The coefficients of 17 the developed approaches are successfully fitted to numerous electron density data derived from dual 18 frequency GPS measurements on-board the CHAMP satellite mission from 2000 to 2005. The data are 19 utilized for fitting up to the L shell L = 3 because a previous validation has shown a good agreement with 20 IMAGE/RPI measurements up to this value. Using the solar radio flux index F10.7 as the only external 21 parameter, the operation of the model is robust, with 40 coefficients fast and sufficiently accurate to be used 22 as a background model for estimating TEC or electron density profiles in near real time GNSS applications 23 and services. In addition to this, the model approach is sensitive to ionospheric coupling resulting in 24 anomalies such as the Nighttime Winter Anomaly and the related Mid-Summer Nighttime Anomaly and 25 even shows a slight plasmasphere compression of the dayside plasmasphere due to solar wind pressure. 26 Modelled electron density and TEC values agree with estimates reported in the literature in similar cases.

Item URL in elib:https://elib.dlr.de/118871/
Document Type:Article
Title:A new electron density model of the plasmasphere for operational 3 applications and services
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jakowski, NorbertNorbert.Jakowski (at) dlr.dehttps://orcid.org/0000-0003-3174-2624
Hoque, Mohammed MainulMainul.Hoque (at) dlr.deUNSPECIFIED
Journal or Publication Title:Journal of Space Weather and Space Climate
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.1051/swsc/2018002
Lilensten, JeanUNSPECIFIED
Publisher:EDP Sciences
Status:In Press
Keywords:plasmasphere / empirical model / ionosphere / electron density / TEC
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Ionosphäre
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Jakowski, Dr.rer.nat. Norbert
Deposited On:12 Apr 2018 11:21
Last Modified:12 Apr 2018 11:21

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