TND-IGG RL01: Thermospheric neutral density from accelerometer measurements of GRACE, CHAMP and Swarm

DOI

TND-IGG RL01: This dataset is the first release of thermospheric neutral densities (TND) processed at the Institute of Geodesy and Geoinformation (IGG), University of Bonn, Germany. TNDs are derived from accelerometer measurements of the satellites GRACE-A, CHAMP and Swarm-C. For GRACE-A and CHAMP we first calibrate the accelerometer data within a precise orbit determination procedure (Vielberg et al., 2018). For Swarm-C we use the calibrated along-track accelerations from ESA (Siemes et al., 2016). In a second step, solar and Earth radiation pressure accelerations according to Vielberg and Kusche (2020) are reduced from the calibrated accelerometer data. The resulting atmospheric drag is then related to the thermospheric neutral density following the direct procedure by Doornbos et al. (2010) with temperature and density of atmospheric constituents from the empirical model NRLMSIS2.0. We apply an accommodation coefficient of 0.93 for GRACE, 0.82 for Swarm and 0.85 for CHAMP. Detailed information about the processing can be found in the ReadMe.txt and in Vielberg et al. (2021, in review). The final thermospheric neutral densities with a temporal resolution of 10 seconds are provided as monthly netCDF files.

Identifier
DOI https://doi.org/10.1594/PANGAEA.931347
Related Identifier https://doi.org/10.21203/rs.3.rs-459456/v1
Related Identifier https://store.pangaea.de/Publications/Vielberg-etal_2021/Vielberg-etal_2021_ReadMe.zip
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.931347
Provenance
Creator Vielberg, Kristin ORCID logo; Lück, Christina; Corbin, Armin; Forootan, Ehsan; Löcher, Anno; Kusche, Jürgen (ORCID: 0000-0001-7069-021X)
Publisher PANGAEA
Publication Year 2021
Funding Reference German Aerospace Center https://doi.org/10.13039/501100002946 Crossref Funder ID DLR D-SAT Determination of thermospheric density parameters by means of accelerometer measurements as well as GPS-specific satellite orbits (DLR D-SAT); German Aerospace Center https://doi.org/10.13039/501100002946 Crossref Funder ID DLR-TIK Development of an operational prototype for the determination of the thermospheric density on the basis of a thermospheric-ionospheric coupling model (TIK)
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 3 data points
Discipline Earth System Research