Integrated data Processing for Multi-Satellite Missions and recovery of Marine Gravity Field

In order to eliminate the inconsistency of the existing data from multi-satellite missions, we propose a new method for optimal combination of altimeter data. In our data management system, the crossover adjustment is modified to two-step processing based on the a posteriori compensation theory of error; i.e., the crossover adjustment of condition equations is made in the first step, and the filtering and prediction of adjustment corrections done along each single pass in the second step. Using the new approach can simplify greatly the computational procedure of crossover adjustment, and the stability and reliability of its solution can be expected. The new method can be used for both local and global crossover adjustment problems. Finally, a practical altimeter dataset from Geosat, ERS-1, ERS-2, and TOPEX/POSEIDON (T/P) is used as a case study to prove the efficiency of the integrated data processing method.

[1]  C. Hwang,et al.  Marine Gravity Anomaly from Satellite Altimetry: a Comparison of Methods over Shallow Waters , 2003 .

[2]  C. Wagner.  Radial variations of a satellite orbit due to gravitational errors: Implications for satellite altimetry , 1985 .

[3]  R. Rummel.  Principle of satellite altimetry and elimination of radial orbit errors , 1993 .

[4]  Cheinway Hwang,et al.  Inverse Vening Meinesz formula and deflection-geoid formula: applications to the predictions of gravity and geoid over the South China Sea , 1998 .

[5]  B. Parsons,et al.  Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data , 1998 .

[6]  Walter H. F. Smith,et al.  Marine gravity anomaly from Geosat and ERS 1 satellite altimetry , 1997 .

[7]  W. Bosch.  Geodetic Application of Satellite Altimetry , 2003 .

[8]  Donald W. Forsyth,et al.  A simple objective method for minimizing crossover errors in marine gravity data , 1984 .

[9]  Resolving marine gravity with ERS‐1 satellite altimetry , 1992 .

[10]  J. L. LaBrecque,et al.  Digital images of combined oceanic and continental data sets and their use in tectonic studies , 1983 .

[11]  K. Marks,et al.  Gravity fields of the southern ocean from Geosat Data , 1992 .

[12]  Huang Motao,et al.  Marine gravity surveying line system adjustment , 1995 .

[13]  P. Berry,et al.  Estimation of Contamination of ERS-2 and POSEIDON Satellite Radar Altimetry Close to the Coasts of Australia , 2002 .