Time series of monthly combined HLSST and SLR gravity field models to bridge the gap between GRACE and GRACE-FO: QuantumFrontiers_HLSST_SLR_COMB2019s

Cite as:

Weigelt, Matthias (2019): Time series of monthly combined HLSST and SLR gravity field models to bridge the gap between GRACE and GRACE-FO: QuantumFrontiers_HLSST_SLR_COMB2019s. GFZ Data Services. https://doi.org/10.5880/ICGEM.2019.008

Status

I N R E V I E W : Weigelt, Matthias (2019): Time series of monthly combined HLSST and SLR gravity field models to bridge the gap between GRACE and GRACE-FO: QuantumFrontiers_HLSST_SLR_COMB2019s. GFZ Data Services. https://doi.org/10.5880/ICGEM.2019.008

Abstract

QuantumFrontiers_HLSST_SLR_COMB2019s is a series of monthly gravity field models based on high-low satellite-to-satellite (HLSST) tracking and satellite laser ranging (SLR) data up to degree and order 60. The combination of HLSST and SLR data is done on the normal equation level using Variance Component Estimation. The series spans from 2003 to 2018 and thus covers the entire period between GRACE and GRACE Follow-On. It is therefore a prime candidate to bridge the data gap between these two satellite mission considering long-wavelength features on a global scale.

The model has been developed with data contributions from the Astronomical Institute, University Bern (AIUB), the Institute of Geodesy, Theoretical Geodesy and Satellite Geodesy, Graz University of Technology, the Institute for Geodesy, Leibniz University Hannover and the European Space Agency. More details on the processing can be found in "Time-Variable Gravity Signal in Greenland Revealed by High-Low Satellite-to-Satellite Tracking" (Weigelt et al, 2013, https://doi.org/10.1002/jgrb.50283)

Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC-2123 QuantumFrontiers – 390837967.

Authors

Weigelt, Matthias;Leibniz University Hannover, Hannover, Germany

Contact

Weigelt, Matthias; Leibniz University Hannover, Hannover, Germany; ➦

Contributors

Ince, Elmas Sinem; Reißland, Sven

Funders

Deutsche Forschungsgemeinschaft: CRC 1128: Relativistic Geodesy and Gravimetry with Quantum Sensors (geo-Q) (EXC-2123/1)

Keywords

HLSST, SLR, gravity field model, variance component estimation, ICGEM, Geodesy, satellite laser ranging, temporal gravity model

GCMD Science Keywords

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    - subject: satellite laser ranging
    - subject: temporal gravity model
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