On the combination of altimetry and tide gauge observations in the Norwegian coastal zone
We have, using altimetry observations, investigated the nature and magnitude of variations in the local mean dynamic topography (MDT) along the Norwegian coast. Following our findings, we argue that the MDT is well approximated by the nearest observation and demonstrate how the results can be improv...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-05-01
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| Series: | Journal of Geodetic Science |
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| Online Access: | https://doi.org/10.1515/jogs-2025-0184 |
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| _version_ | 1850271444335853568 |
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| author | Mysen Eirik Breili Kristian |
| author_facet | Mysen Eirik Breili Kristian |
| author_sort | Mysen Eirik |
| collection | DOAJ |
| description | We have, using altimetry observations, investigated the nature and magnitude of variations in the local mean dynamic topography (MDT) along the Norwegian coast. Following our findings, we argue that the MDT is well approximated by the nearest observation and demonstrate how the results can be improved using variogram based kriging. Cross validation at tide gauges along the coast confirms the applicability of the approach and, therefore, gives us some confidence in its ability to weigh altimetry and tide gauge observations appropriately. Accordingly, altimetry is a potentially very important source of information on mean sea level outside the Norwegian baseline. |
| format | Article |
| id | doaj-art-a60a549242bd48a99ace5cd2d6e49b85 |
| institution | OA Journals |
| issn | 2081-9943 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Journal of Geodetic Science |
| spelling | doaj-art-a60a549242bd48a99ace5cd2d6e49b852025-08-20T01:52:14ZengDe GruyterJournal of Geodetic Science2081-99432025-05-011511034610.1515/jogs-2025-0184On the combination of altimetry and tide gauge observations in the Norwegian coastal zoneMysen Eirik0Breili Kristian1Geodetic Institute, Norwegian Mapping Authority, 3507, Hønefoss, NorwayGeodetic Institute, Norwegian Mapping Authority, 3507, Hønefoss, NorwayWe have, using altimetry observations, investigated the nature and magnitude of variations in the local mean dynamic topography (MDT) along the Norwegian coast. Following our findings, we argue that the MDT is well approximated by the nearest observation and demonstrate how the results can be improved using variogram based kriging. Cross validation at tide gauges along the coast confirms the applicability of the approach and, therefore, gives us some confidence in its ability to weigh altimetry and tide gauge observations appropriately. Accordingly, altimetry is a potentially very important source of information on mean sea level outside the Norwegian baseline.https://doi.org/10.1515/jogs-2025-0184altimetrygeodesyinterpolationkrigingmean dynamic topographysentinel-3tide gaugesuncertainty |
| spellingShingle | Mysen Eirik Breili Kristian On the combination of altimetry and tide gauge observations in the Norwegian coastal zone Journal of Geodetic Science altimetry geodesy interpolation kriging mean dynamic topography sentinel-3 tide gauges uncertainty |
| title | On the combination of altimetry and tide gauge observations in the Norwegian coastal zone |
| title_full | On the combination of altimetry and tide gauge observations in the Norwegian coastal zone |
| title_fullStr | On the combination of altimetry and tide gauge observations in the Norwegian coastal zone |
| title_full_unstemmed | On the combination of altimetry and tide gauge observations in the Norwegian coastal zone |
| title_short | On the combination of altimetry and tide gauge observations in the Norwegian coastal zone |
| title_sort | on the combination of altimetry and tide gauge observations in the norwegian coastal zone |
| topic | altimetry geodesy interpolation kriging mean dynamic topography sentinel-3 tide gauges uncertainty |
| url | https://doi.org/10.1515/jogs-2025-0184 |
| work_keys_str_mv | AT myseneirik onthecombinationofaltimetryandtidegaugeobservationsinthenorwegiancoastalzone AT breilikristian onthecombinationofaltimetryandtidegaugeobservationsinthenorwegiancoastalzone |