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| Titel |
Influence of admittance theory on oceanic tidal angular momentum |
| VerfasserIn |
Jan M. Hagedoorn, Wolfgang Bosch, Matthias Madzak, Harald Schuh |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250108949
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| Publikation (Nr.) |
 EGU/EGU2015-8792.pdf |
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| Zusammenfassung |
| Within the project SPOT (Short Period Ocean Tidal variations in Earth rotation), we develop
an improved model of short period ocean tidal effects in polar motion and length-of-day.
Thereby, we need to determine the contributions of individual tidal constituents to the
variation in polar motion and length-of-day in terms of oceanic tidal angular momentum
(OTAM).
Recent studies show that minor tides from admittance theory, hydrodynamic modelling
and estimated from satellite altimetry differ significantly. Here minor tides describe all tidal
constituents which are not in the group of {K1,O1,P1,Q1, M2,S2,N2,K2} in the diurnal and
semidiurnal band.
Therefor, we investigate systematically the influence of different implementations of
admittance theory for minor tides on OTAM. In addition, we study the influence of different
tidal heights models, like EOT11a, HAMTIDE and FES2012, as well as linear and quadratic
admittance for semidiurnal tides. |
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