Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Modeling gravimetric signatures of third-degree ocean tides and their detection in superconducting gravimeter records
Sulzbach, R.; Wziontek, H.; Hart-Davis, M.; Dobslaw, H.; Scherneck, H.-G.; Van Camp, M.; Omang, O.C.D.; Antokoletz, E.D.; Voigt, C.; Dettmering, D.; Thomas, M. (2022). Modeling gravimetric signatures of third-degree ocean tides and their detection in superconducting gravimeter records. Bulletin Géodésique 96(5): 35. https://dx.doi.org/10.1007/s00190-022-01609-w
In: Bulletin Géodésique = Journal of Geodesy = Official Journal of the International Association of Geodesy. Springer: Berlin; Heidelberg. ISSN 0949-7714; e-ISSN 1432-1394
|   |
| Trefwoord |
|
| Author keywords |
Tidal modeling; Degree-3 tides; Superconducting gravimetry; Tide gaugedata; Tidal analysis |
| Auteurs | | Top |
- Sulzbach, R.
- Wziontek, H.
- Hart-Davis, M.
- Dobslaw, H.
|
- Scherneck, H.-G.
- Van Camp, M.
- Omang, O.C.D.
- Antokoletz, E.D.
|
- Voigt, C.
- Dettmering, D.
- Thomas, M.
|
| Abstract |
We employ the barotropic, data-unconstrained ocean tide model TIME to derive an atlas for degree-3 tidal constituents including monthly to terdiurnal tidal species. The model is optimized with respect to the tide gauge data set TICON-td that is extended to include the respective tidal constituents of diurnal and higher frequencies. The tide gauge validation shows a rootmean-square (RMS) deviation of 0.9-1.3 mm for the individual species. We further model the load tide-induced gravimetric signals by two means (1) a global load Love number approach and (2) evaluating Greens-integrals at 16 selected locations of superconducting gravimeters. The RMS deviation between the amplitudes derived using both methods is below 0.5 nGal (1 nGal = 0.011 nm/S-2) when excluding near-coastal gravimeters. Utilizing ETERNA-x, a recently upgraded and reworked tidal analysis software, we additionally derive degree-3 gravimetric tidal constituents for these stations, based on a hypothesis-free wave grouping approach. We demonstrate that this analysis is feasible, yielding amplitude predictions of only a few 10 nGal, and that it agrees with the modeled constituents on a level of 63-80% of the mean signal amplitude. Larger deviations are only found for lowest amplitude signals, near-coastal stations, or shorter and noisier data sets. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
