ITSG-Grace2018/ ITSG-Grace_operational Level-L2B Products Filtered Stokes coefficients

Cite as:

Kvas, Andreas; Boergens, Eva (2021): ITSG-Grace2018/ ITSG-Grace_operational Level-L2B Products Filtered Stokes coefficients. GFZ Data Services. https://doi.org/10.5880/ITSG.GRAVIS_2018_L2B

Status

I N R E V I E W : Kvas, Andreas; Boergens, Eva (2021): ITSG-Grace2018/ ITSG-Grace_operational Level-L2B Products Filtered Stokes coefficients. GFZ Data Services. https://doi.org/10.5880/ITSG.GRAVIS_2018_L2B

Abstract

Filtered GRACE/GRACE-FO spherical harmonic coefficients of ITSG-Grace2018/ITSG-Grace_operational Level-2 GSM products representing an estimate of Earth's gravity field variations during the specified timespan. The spherical harmonic coefficients are filtered with VDK3 filter (anisotropic filter taking the actual error covariance information of the underlying GSM coefficients into account, see Horvath et al. (2018)). The filtered spherical harmonic coefficients are accompanied by their variance-covariance matrices which are gained via variance propagation from the variance-covariance matrices of the unfiltered coefficients.

This data set is basis of Boergens and Kvas (2021) and have been used in Boergens et al. (2021) to produce regional time series and their uncertainties, which can be reproduced with the code provided by Boergens (2021).

Authors

Kvas, Andreas;Graz University of Technology, Graz, Austria
Boergens, Eva;GFZ German Research Centre for Geosciences, Potsdam, Germany

Contact

Kvas, Andreas; Graz University of Technology, Graz, Austria;

Keywords

Gravity Recovery And Climate Experiment (GRACE), GRACE Follow-on (GRACE-FO), Level-2, Level-2B, SHM, Spherical Harmonic Model, Gravitational Field, GSM, Geopotential, Gravity Field, Mass, Mass Transport, Total Water Storage, Time Variable Gravity, Mass Balance, Gravity Anomaly, Satellite Geodesy