THE KAISERSLAUTERN MULTISCALE GEOPOTENTIAL MODEL SWITCH-03 FROM ORBIT PERTURBATIONS OF THE SATELLITE CHAMP AND ITS COMPARISON TO THE MODELS EGM96, UCPH2002_02_0.5, EIGEN-1S AND EIGEN-2
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dc.contributor.author | Fengler M.J. | |
dc.contributor.author | Freeden W. | |
dc.contributor.author | Michel V. | |
dc.date.accessioned | 2022-09-22T08:19:12Z | |
dc.date.available | 2022-09-22T08:19:12Z | |
dc.date.issued | 2004 | |
dc.identifier | https://elibrary.ru/item.asp?id=6524300 | |
dc.identifier.citation | Geophysical Journal International, 2004, 157, 2, 499-514 | |
dc.identifier.issn | 0956-540X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/38688 | |
dc.description.abstract | Observed orbit perturbations of the near-Earth orbiting satellite CHAMP are analysed to recover the long-wavelength features of the Earth's gravitational potential. More precisely, by tracking the low-flying satellite CHAMP using the high-flying satellites of the Global Positioning System (GPS) the kinematic orbit of CHAMP is obtainable from GPS tracking observations, i.e. the ephemeris in Cartesian coordinates in an Earth-fixed coordinate frame (WGS84) becomes available. | |
dc.description.abstract | In this study we are concerned with two tasks: first we present new methods for pre-processing, modelling and analysing the emerging tracking data. Then, in a first step we demonstrate the strength of our approach by applying it to simulated CHAMP orbit data. In a second step we present results obtained by operating on a data set derived from real CHAMP data. | |
dc.description.abstract | The modelling is mainly based on a connection between non-bandlimited spherical splines and least-square adjustment techniques to take into account the non-sphericity of the trajectory. Furthermore, harmonic regularization wavelets for solving the underlying satellite-to-satellite tracking (SST) problem are used within the framework of multiscale recovery of the Earth's gravitational potential leading to SWITCH-03 (Spline and Wavelet Inverse Tikhonov regularized CHamp data). Further we show how regularization parameters can be adapted adequately to a specific region thereby improving a globally resolved model. Finally we compare the developed model with the EGM96 model, model UCPH2002_02_0.5 from the University of Copenhagen and the GFZ models EIGEN-1s and EIGEN-2. | |
dc.subject | CHAMP POST-PROCESSED SCIENCE ORBIT DATA | |
dc.subject | REGIONAL GRAVITATIONAL FIELD RECOVERY | |
dc.subject | SPHERICAL SPLINES | |
dc.subject | TIKHONOV WAVELET REGULARIZATION | |
dc.title | THE KAISERSLAUTERN MULTISCALE GEOPOTENTIAL MODEL SWITCH-03 FROM ORBIT PERTURBATIONS OF THE SATELLITE CHAMP AND ITS COMPARISON TO THE MODELS EGM96, UCPH2002_02_0.5, EIGEN-1S AND EIGEN-2 | |
dc.type | Статья |
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