Searches for beyond-Riemann gravity

VA Kostelecký, Z Li - Physical Review D, 2021 - APS
Many effective field theories describing gravity cannot arise from an underlying theory based
on Riemann geometry or its extensions to include torsion and nonmetricity but may instead …

An iterative ICA-based reconstruction method to produce consistent time-variable total water storage fields using GRACE and Swarm satellite data

E Forootan, M Schumacher, N Mehrnegar, A Bezděk… - Remote Sensing, 2020 - mdpi.com
Observing global terrestrial water storage changes (TWSCs) from (inter-) seasonal to (multi-)
decade time-scales is very important to understand the Earth as a system under natural and …

[HTML][HTML] Description of the multi-approach gravity field models from Swarm GPS data

J Teixeira da Encarnação, P Visser… - Earth System …, 2020 - essd.copernicus.org
Although the knowledge of the gravity of the Earth has improved considerably with CHAMP,
GRACE, and GOCE (see appendices for a list of abbreviations) satellite missions, the …

Comparison of terrestrial water storage changes derived from GRACE/GRACE-FO and Swarm: A case study in the Amazon River Basin

L Cui, Z Song, Z Luo, B Zhong, X Wang, Z Zou - Water, 2020 - mdpi.com
The mass changes in the Earth's surface internally derived from the Gravity Recovery and
Climate Experiment (GRACE) and the GRACE Follow-On (GRACE-FO) missions have …

Rapid mass loss in West Antarctica revealed by Swarm gravimetry in the absence of GRACE

C Zhang, CK Shum, A Bezděk, M Bevis… - Geophysical …, 2021 - Wiley Online Library
GRACE observations revealed that rapid mass loss in the West Antarctic Ice Sheet (WAIS)
abruptly paused in 2015, followed by a much lower rate of mass loss (Gt yr− 1) until the …

Real-time kinematic precise orbit determination for LEO satellites using zero-differenced ambiguity resolution

X Li, J Wu, K Zhang, X Li, Y Xiong, Q Zhang - Remote sensing, 2019 - mdpi.com
The rapid growing number of earth observation missions and commercial low-earth-orbit
(LEO) constellation plans have provided a strong motivation to get accurate LEO satellite …

Gravity field models derived from Swarm GPS data

J Teixeira da Encarnação, D Arnold, A Bezděk… - Earth, Planets and …, 2016 - Springer
It is of great interest to numerous geophysical studies that the time series of global gravity
field models derived from Gravity Recovery and Climate Experiment (GRACE) data remains …

Time-variable gravity fields derived from GPS tracking of Swarm

A Bezděk, J Sebera… - Geophysical Journal …, 2016 - academic.oup.com
Abstract Since 2002 Gravity Recovery and Climate Experiment (GRACE) provides monthly
gravity fields from K-band ranging (KBR) between two GRACE satellites. These KBR gravity …

Global and regional gravity field determination from GOCE kinematic orbit by means of spherical radial basis functions

B Bucha, A Bezděk, J Sebera, J Janák - Surveys in Geophysics, 2015 - Springer
We present global and regional gravity field models to degree 130 based on the GOCE
kinematic orbit from the period 01 November 2009 to 11 January 2010. The gravity field …

利用卫星跟踪卫星观测数据确定时变重力场球谐解的发展趋势

周浩, 罗志才, 周泽兵, 杨帆, 郭向, 李耀宗… - 地球与行星物理论 …, 2022 - sjdz.org.cn
时变重力场综合反映了地球内部及表层物质的迁移特性, 在地球科学领域应用广泛. 21 世纪以来,
多个重力卫星相继成功发射, 为实现全球时变重力场连续监测提供了数据支撑 …