Energy Balance Relations for Validation of Gravity Field Models and Orbit Determinations Applied to the CHAMP Mission

2005 ◽  
pp. 53-58 ◽  
Author(s):  
Anno Löcher ◽  
Karl Heinz Ilk
Keyword(s):  
Energy Balance ◽  
Gravity Field ◽  
Gravity Field Models

Orbit determination of the SELENE satellites using multi-satellite data types and evaluation of SELENE gravity field models

2011 ◽  
Vol 85 (8) ◽  
pp. 487-504 ◽  
Author(s):  
S. Goossens ◽  
K. Matsumoto ◽  
D. D. Rowlands ◽  
F. G. Lemoine ◽  
H. Noda ◽  
...  
Keyword(s):  
Gravity Field ◽  
Satellite Data ◽  
Orbit Determination ◽  
Data Types ◽  
Gravity Field Models

Preliminary monthly gravity field models from kinematic orbits of SWARM Satellites

2021 ◽  
Author(s):  
Xingfu Zhang ◽  
Qiujie Chen ◽  
Yunzhong Shen
Keyword(s):  
Gravity Field ◽  
Large Scale ◽  
Earth System ◽  
The Earth ◽  
Swarm Satellites ◽  
Variable Gravity ◽  
Data Gap ◽  
One Year ◽  
Gravity Recovery ◽  
Gravity Field Models

<p>      Although the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE FO) satellite missions play an important role in monitoring global mass changes within the Earth system, there is a data gap of about one year spanning July 2017 to May 2018, which leads to discontinuous gravity observations for monitoring global mass changes. As an alternative mission, the SWARM satellites can provide gravity observations to close this data gap. In this paper, we are dedicated to developing alternative monthly time-variable gravity field solutions from SWARM data. Using kinematic orbits of SWARM from ITSG for the period January 2015 to September 2020, we have generated a preliminary time series of monthly gravity field models named Tongji-Swarm2019 up to degree and order 60. The comparisons between Tongji-Swarm2019 and GRACE/GRACE-FO monthly solutions show that Tongji-Swarm2019 solutions agree with GRACE/GRACE-FO models in terms of large-scale mass change signals over amazon, Greenland and other regions. We can conclude that Tongji-Swarm2019 monthly gravity field models are able to close the gap between GRACE and GRACE FO.</p>

The Release 04 CHAMP and GRACE EIGEN Gravity Field Models

2010 ◽  
pp. 41-58 ◽  
Author(s):  
Frank Flechtner ◽  
Christoph Dahle ◽  
Karl Hans Neumayer ◽  
Rolf König ◽  
Christoph Förste
Keyword(s):  
Gravity Field ◽  
Gravity Field Models

Analyzing spectral characteristics of the global Earth gravity field models obtained from the CHAMP, GRACE and GOCE space missions

2015 ◽  
Vol 6 (2) ◽  
pp. 101-108 ◽  
Author(s):  
A. P. Karpik ◽  
V. F. Kanushin ◽  
I. G. Ganagina ◽  
D. N. Goldobin ◽  
E. M. Mazurova
Keyword(s):  
Gravity Field ◽  
Spectral Characteristics ◽  
Space Missions ◽  
Earth Gravity Field ◽  
Earth Gravity ◽  
Gravity Field Models

Regionally Refined Gravity Field Models from In-Situ Satellite Data

2010 ◽  
pp. 255-264 ◽  
Author(s):  
Annette Eicker ◽  
Torsten Mayer-Gürr ◽  
Karl-Heinz Ilk ◽  
Enrico Kurtenbach
Keyword(s):  
Gravity Field ◽  
Satellite Data ◽  
Gravity Field Models
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