Optimizing estimates of annual variations and trends in geocenter motion and J2 from a combination of GRACE data and geophysical models

Y Sun, R Riva, P Ditmar - Journal of Geophysical Research …, 2016 - Wiley Online Library
The focus of the study is optimizing the technique for estimating geocenter motion and
variations in J2 by combining data from the Gravity Recovery and Climate Experiment …

Revisiting force model error modeling in GRACE gravity field recovery

Y Nie, Y Shen, R Pail, Q Chen, Y Xiao - Surveys in Geophysics, 2022 - Springer
The gravity field recovery from GRACE (Gravity Recovery and Climate Experiment) mission
data is contaminated by both observation noise and dynamic force errors, especially the …

Statistically optimal estimation of Greenland Ice Sheet mass variations from GRACE monthly solutions using an improved mascon approach

J Ran, P Ditmar, R Klees, HH Farahani - Journal of Geodesy, 2018 - Springer
We present an improved mascon approach to transform monthly spherical harmonic
solutions based on GRACE satellite data into mass anomaly estimates in Greenland. The …

An optimized short‐arc approach: Methodology and application to develop refined time series of Tongji‐Grace2018 GRACE monthly solutions

Q Chen, Y Shen, W Chen, O Francis… - Journal of …, 2019 - Wiley Online Library
Considering the unstable inversion of ill‐conditioned intermediate matrix required in each
integral arc in the short‐arc approach presented in Chen et al.(2015, https://doi. org/10.1002 …

Conversion of time-varying Stokes coefficients into mass anomalies at the Earth's surface considering the Earth's oblateness

P Ditmar - Journal of Geodesy, 2018 - Springer
Time-varying Stokes coefficients estimated from GRACE satellite data are routinely
converted into mass anomalies at the Earth's surface with the expression proposed for that …

Structure and thermodynamics of colloid-polymer mixtures: A macromolecular approach

M Fuchs, KS Schweizer - Europhysics Letters, 2000 - iopscience.iop.org
The change of the structure of concentrated colloidal suspensions upon addition of non-
adsorbing polymer is studied within a two-component, Ornstein-Zernicke–based liquid state …

Tongji‐Grace02s and Tongji‐Grace02k: high‐precision static GRACE‐only global Earth's gravity field models derived by refined data processing strategies

Q Chen, Y Shen, O Francis, W Chen… - Journal of …, 2018 - Wiley Online Library
In order to derive high‐precision static Gravity Recovery and Climate Experiment (GRACE)‐
only gravity field solutions, the following strategies were implemented in this study:(1) a …

The static gravity field model DGM-1S from GRACE and GOCE data: computation, validation and an analysis of GOCE mission's added value

HH Farahani, P Ditmar, R Klees, X Liu, Q Zhao… - Journal of …, 2013 - Springer
We present a global static model of the Earth's gravity field entitled DGM-1S based on
GRACE and GOCE data. The collection of used data sets includes nearly 7 years of GRACE …

[HTML][HTML] HUST-Grace2024: a new GRACE-only gravity field time series based on more than 20 years of satellite geodesy data and a hybrid processing chain

H Zhou, L Zheng, Y Li, X Guo, Z Zhou… - Earth System Science …, 2024 - essd.copernicus.org
To improve the accuracy of monthly temporal gravity field models for the Gravity Recovery
and Climate Experiment (GRACE) and the GRACE Follow-On (GRACE-FO) missions, a new …

Improvements in the monthly gravity field solutions through modeling the colored noise in the GRACE data

X Guo, Q Zhao, P Ditmar, Y Sun… - Journal of Geophysical …, 2018 - Wiley Online Library
Abstract The Gravity Recovery And Climate Experiment (GRACE) mission has achieved a
quantum leap in knowledge of the Earth's gravity field. However, current gravity field …