Observation of the System Earth from Space - CHAMP, GRACE, GOCE and future missions: GEOTECHNOLOGIEN Science Report No. 20 (Advanced Technologies in Earth Sciences)

"Significant advances in the scientific use of space based data were achieved in three joint interdisciplinary projects based on data of the satellite missions CHAMP, GRACE and GOCE within the R & D program GEOTECHNOLOGIEN. It was possible to explore and monitor changes related to the Earths surface, the boundary layer between atmosphere and solid earth, and the oceans and ice shields. This boundary layer is our habitat and therefore is in the focus of our interests. The Earths surface is subject to anthropogenetic changes, to changes driven by the Sun, Moon and planets, and by changes caused by processes in the Earth system. The state parameters and their changes are best monitored from space. The theme Observation of the System Earth from Space offers comprehensive insights into a broad range of research topics relevant to society including geodesy, oceanography, atmospheric science (from meteorology to climatology), hydrology and glaciology"--Page 4 of cover Front Matter....Pages i-xv Front Matter....Pages 1-1 LOTSE-CHAMP/GRACE: An Interdisciplinary Research Project for Earth Observation from Space....Pages 3-8 Improvement in GPS Orbit Determination at GFZ....Pages 9-17 Using Accelerometer Data as Observations....Pages 19-27 GFZ RL05: An Improved Time-Series of Monthly GRACE Gravity Field Solutions....Pages 29-39 GRACE Gravity Modeling Using the Integrated Approach....Pages 41-45 Comparison of Daily GRACE Solutions to GPS Station Height Movements....Pages 47-52 Identification and Reduction of Satellite-Induced Signals in GRACE Accelerometer Data....Pages 53-61 Reprocessing and Application of GPS Radio Occultation Data from CHAMP and GRACE....Pages 63-71 Front Matter....Pages 73-73 Real Data Analysis GOCE (REAL GOCE): A Retrospective Overview....Pages 75-79 GOCE Gravity Gradients: Reprocessed Gradients and Spherical Harmonic Analyses....Pages 81-88 GOCE Gravity Gradients: Combination with GRACE and Satellite Altimetry....Pages 89-94 Incorporating Topographic-Isostatic Information into GOCE Gravity Gradient Processing....Pages 95-101 Global Gravity Field Models from Different GOCE Orbit Products....Pages 103-108 Adjustment of Digital Filters for Decorrelation of GOCE SGG Data....Pages 109-114 Stochastic Modeling of GOCE Gravitational Tensor Invariants....Pages 115-121 Cross-Overs Assess Quality of GOCE Gradients....Pages 123-129 Consistency of GOCE Geoid Information with in-situ Ocean and Atmospheric Data, Tested by Ocean State Estimation....Pages 131-137 Regional Validation and Combination of GOCE Gravity Field Models and Terrestrial Data....Pages 139-145 Height System Unification Based on GOCE Gravity Field Models: Benefits and Challenges....Pages 147-153 EIGEN-6C: A High-Resolution Global Gravity Combination Model Including GOCE Data....Pages 155-161 Future Gravity Field Satellite Missions....Pages 165-230 This book features real data analysis of gravity and magnetic field satellite missions and technical requirements for future missions. It presents the latest insights of the gravity and magnetic field satellite missions CHAMP, GRACE, GOCE, LOTSE