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Ionospheric scintillations studies using Spire and COSMIC-2 radio occultation and GOLD satellite data

Mohanty, Shradha and Hoque, Mohammed Mainul (2023) Ionospheric scintillations studies using Spire and COSMIC-2 radio occultation and GOLD satellite data. EGU23 General Assembly, 23–28 April 2023, Vienna, Austria. doi: 10.5194/egusphere-egu23-3149.

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Official URL: https://meetingorganizer.copernicus.org/EGU23/EGU23-3149.html


Low-earth orbits (LEO) satellites have been harnessing the concept of GNSS radio occultation (RO) for several atmospheric applications. With the advent of CubeSat technology, many space companies are now extending the GNSS-RO for ionospheric and space weather studies. This study demonstrates the capabilities of Spire’s constellation of CubeSats in detecting ionospheric scintillations. High rate 50 Hz GNSS measurements received by the STRATOS receivers onboard Spires’s CubeSats are used to detect scintillations over low latitude African sector. Spire’s GNSS-RO atmPhs files are accessed from University Corporation for Atmospheric Research (UCAR) data repository along with COSMIC-2 conPhs files. The amplitude scintillation index (S4) is computed for each COSMIC-2 and Spire RO profiles. While COSMIC-2 conPhs files are restricted to tangent point altitudes up to 130 km, the scintillation detection algorithm onboard Spire receivers enable to downlink the associated 50 Hz phase and pseudorange data of the extended RO profiles (up to zenith). Spire’s extended RO profiles enable to detect F-layer amplitude scintillations often occurring in post-sunset hours. The occurrences of scintillations are corroborated by equatorial plasma bubble (EPB) structures observed from NASA’s Global‐scale Observations of the Limb and Disk (GOLD) satellite. This study indicates the potential of Spire GNSS-RO data in augmenting and complementing ionospheric scintillation studies available from COSMIC-2 and other similar RO missions. This apability can provide an important contribution to scintillation monitoring and can further be extended to space weather nowcasts and forecasts.

Item URL in elib:https://elib.dlr.de/195447/
Document Type:Conference or Workshop Item (Other)
Title:Ionospheric scintillations studies using Spire and COSMIC-2 radio occultation and GOLD satellite data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Mohanty, ShradhaUNSPECIFIEDhttps://orcid.org/0000-0002-2726-5573UNSPECIFIED
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Ionosphere, scintillations, GNSS Radio Occulttaion
Event Title:EGU23 General Assembly
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:23–28 April 2023
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 - Project Space weather research, R - Ionosphere
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics > Space Weather Observation
Deposited By: Mohanty, Shradha
Deposited On:22 Aug 2023 09:35
Last Modified:22 Aug 2023 09:35

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