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Data assimilation in the ionosphere-thermosphere system

Kodikara, Timothy (2023) Data assimilation in the ionosphere-thermosphere system. Geospatial World Distinguished Scientists Forum, China University of Mining and Technology, 12 Apr 2023, Virtual.

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Solar forcing from above, atmospheric forcing (wave activity) from below, and various internal multiscale dynamics including the equatorial dynamo process influence the ionosphere-thermosphere (IT) system. The so-called self-consistent numerical models of the IT system depend on boundary conditions and rely on many assumptions and simplifications. Data assimilation (DA) is arguably essential for space weather forecasting due to the inaccurate and incomplete modelling and the scarcity of observations of the IT system. In this talk, we will present some of our recent developments in the assimilation of IT data into numerical models, with emphasis on the ensemble Kalman filter technique as well as tomography and DA-based calibration of empirical models.

Item URL in elib:https://elib.dlr.de/195129/
Document Type:Conference or Workshop Item (Speech)
Title:Data assimilation in the ionosphere-thermosphere system
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kodikara, TimothyUNSPECIFIEDhttps://orcid.org/0000-0003-4099-9966UNSPECIFIED
Date:12 April 2023
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Data assimilation, ionosphere, thermosphere, TIE-GCM, ensemble Kalman filter
Event Title:Geospatial World Distinguished Scientists Forum, China University of Mining and Technology
Event Location:Virtual
Event Type:Other
Event Dates:12 Apr 2023
Organizer:China University of Mining and Technology, Xuzhou, China
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Solar-Terrestrial Physics SO
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics
Deposited By: Kodikara, Dr Timothy
Deposited On:22 May 2023 14:52
Last Modified:18 Sep 2023 11:14

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