Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids
For many modern regional geoid and quasigeoid models accuracies of one or a few centimeters are given. Validation of these models, however, is often difficult due to the lack of independent data. In a test area of the Bavarian Alps, Germany, with dense data coverage, we carry out validation experime...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Published: |
Springer
2009
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/24970 |
| _version_ | 1848751576487821312 |
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| author | Flury, J. Gerlach, C. Hirt, Christian Schirmer, U. |
| author2 | H. Drewes |
| author_facet | H. Drewes Flury, J. Gerlach, C. Hirt, Christian Schirmer, U. |
| author_sort | Flury, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | For many modern regional geoid and quasigeoid models accuracies of one or a few centimeters are given. Validation of these models, however, is often difficult due to the lack of independent data. In a test area of the Bavarian Alps, Germany, with dense data coverage, we carry out validation experiments using GPS, levelling and astrogeodetic observations as well as state-of-the-art regional quasigeoid models. The data cover very rough terrain and mountain peaks. We find a good mutual agreement with a typical scatter of height residuals of 1 ? 2 cm. In some areas, however, systematic residual mean values of several centimeters are obtained which are possibly due to residual quasigeoid errors or due to a weak tie to the GPS reference frame. |
| first_indexed | 2025-11-14T07:54:55Z |
| format | Conference Paper |
| id | curtin-20.500.11937-24970 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:54:55Z |
| publishDate | 2009 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-249702017-09-13T15:52:51Z Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids Flury, J. Gerlach, C. Hirt, Christian Schirmer, U. H. Drewes astrogeodetic quasigeoid Heights quasigeoid GPS-levelling For many modern regional geoid and quasigeoid models accuracies of one or a few centimeters are given. Validation of these models, however, is often difficult due to the lack of independent data. In a test area of the Bavarian Alps, Germany, with dense data coverage, we carry out validation experiments using GPS, levelling and astrogeodetic observations as well as state-of-the-art regional quasigeoid models. The data cover very rough terrain and mountain peaks. We find a good mutual agreement with a typical scatter of height residuals of 1 ? 2 cm. In some areas, however, systematic residual mean values of several centimeters are obtained which are possibly due to residual quasigeoid errors or due to a weak tie to the GPS reference frame. 2009 Conference Paper http://hdl.handle.net/20.500.11937/24970 10.1007/978-3-642-00860-3_47 Springer restricted |
| spellingShingle | astrogeodetic quasigeoid Heights quasigeoid GPS-levelling Flury, J. Gerlach, C. Hirt, Christian Schirmer, U. Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids |
| title | Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids |
| title_full | Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids |
| title_fullStr | Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids |
| title_full_unstemmed | Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids |
| title_short | Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids |
| title_sort | heights in the bavarian alps: mutual validation of gps, levelling, gravimetric and astrogeodetic quasigeoids |
| topic | astrogeodetic quasigeoid Heights quasigeoid GPS-levelling |
| url | http://hdl.handle.net/20.500.11937/24970 |