Observation of the System Earth from Space - CHAMP, GRACE, GOCE and future missions

Part I. 1. Lotse CHAMP-GRACE: An interdisciplinary research project for earth observation from space.- 2. Improvement in GPS orbit determination at GFZ.- 3. Using accelerometer data as observations.- 4. GFZ RL05 - an improved time -series of monthly GRACE gravity field solution.- 5. GRACE gravity modeling using the integrated approach.- 6. Comparison of daily GRACE solutions to GPS station height movements.- 7. Identification and reduction of satellite-induced signals is GRACE accelerometer data.- 8. Reprocessing and application of GPS radio occultation data from CHAMP and GRACE.- Part II. 9. Real data analysis GOCE (REAL GOCE).- 10. GOCE gravity gradients: reprocessed gradients and spherical harmonic analyses.- 11. GOCE gravity gradients : combination with GRACE and satellite altimetry.- 12. Incorporating topographic-isostatic information into GOCE gravity gradient processing.- 13. Global gravity fields from different GOCE orbit products.- 14. Adjustment of digital filters for decorrelation of GOCE SGG data.- 15. Stochastic modeling of GOCE gravitational tensor invariants.- 16. Cross-overs assess quality of GOCE gradients.- 17. Consistency of GOCE geoid information with in situ ocean and atmospheric data, tested by ocean state estimation.- 18. Regional validation and combination of GOCE gravity field models and terrestrial data.- 19. Height system unification based on GOCE gravity field models - benefits and challenges.- 20. EIGEN-6C - a high resolution global gravity combination model including GOCE data.