IGG-Swarm: Temporal Gravity Models from Swarm

Cite as:

Lück, Christina; Kusche, Jürgen; Rietbroek, Roelof; Löcher, Anno (2021): IGG-Swarm: Temporal Gravity Models from Swarm. GFZ Data Services. https://doi.org/10.5880/icgem.2021.002

Status

I N R E V I E W : Lück, Christina; Kusche, Jürgen; Rietbroek, Roelof; Löcher, Anno (2021): IGG-Swarm: Temporal Gravity Models from Swarm. GFZ Data Services. https://doi.org/10.5880/icgem.2021.002

Abstract

Monthly gravity fields from Swarm A, B, and C, using the integral equation approach with short arcs.

Software: GROOPS;
Approach: Short-arc approach (Mayer-Gürr, 2006);
Kinematic orbit product: IfG Graz: https://ftp.tugraz.at/outgoing/ITSG/satelliteOrbitProducts/operational/Swarm-1/kinematicOrbit/;
Arc length: 45 minutes;
Reference GFM: GOCO06s (Kvas et. al, 2021), monthly mean has been added back to the solution;
Drag model: NRLMSIS2;
SRP and EARP and EIRP models: Vielberg & Kusche (2020);
Empirical parameters: + for non-gravitational accelerations (sum of Drag+SRP+EIRP+EARP): Bias per arc and direction; + for Drag: Scale per arc and direction; + for radiation pressure (sum of SRP+EIRP+EARP): Scale per day and direction;
Non-tidal model: Atmosphere and Ocean De-aliasing Level 1B RL06 (Dobslaw et al., 2017);
Ocean tidal model: 2014 finite element solution FES2014b (Carrere et al., 2015);
Atmospheric tidal model: AOD1B RL06 atmospheric tides ;
Solid Earth tidal model: IERS2010;
Pole tidal model: IERS2010;
Ocean pole tidal model: IERS2010 (Desai 2002);
Third-body perturbations: Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn, following the JPL DE421 Planetary and Lunar Ephemerides (Folkner et al., 2014).

Authors

Lück, Christina;Institute for Geodesy and Geoinformation, University of Bonn, Bonn, Germany
Kusche, Jürgen;Institute for Geodesy and Geoinformation, University of Bonn, Bonn, Germany
Rietbroek, Roelof;ITC Faculty of Geo-information Science and Earth Observation , Department of Water Resources (WRS), University of Twente, Enschede, The Netherlands
Löcher, Anno;Institute for Geodesy and Geoinformation, University of Bonn, Bonn, Germany

Contact

Lück, Christina; Institute for Geodesy and Geoinformation, University of Bonn, Bonn, Germany;

Keywords

Swarm, monthly gravity field model, ICGEM, geodesy, global gravity field model

GCMD Science Keywords

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      - familyName: Löcher
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0003-4831-6218
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  - publisher: GFZ Data Services
  - publicationYear: 2021
  - subjects
    - subject: Swarm
    - subject: monthly gravity field model
    - subject: ICGEM
    - subject: geodesy
    - subject: global gravity field model
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > SOLID EARTH > GEODETICS
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