Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Investigation of the time variability of diurnal tides and resonant FCN period
Cui, M; Sun, P; Rosat, S; Xu, Q; Zhou, C; Ducarme, B. (2014). Investigation of the time variability of diurnal tides and resonant FCN period. J. Geodyn. 79: 30-38. dx.doi.org/10.1016/j.jog.2014.05.003
In: Journal of Geodynamics. Elsevier Science: Amsterdam. ISSN 0264-3707; e-ISSN 1879-1670, meer
|  |
| Trefwoord |
|
| Author keywords |
Temporal variation; Superconducting gravimeter; Diurnal tides; VLBI; FCNperiod |
| Auteurs | | Top |
- Cui, M
- Sun, P
- Rosat, S, meer
|
- Xu, Q
- Zhou, C
- Ducarme, B., meer
|
|
| Abstract |
The time variability of diurnal tides was investigated by analyzing gravity observations from global superconducting gravimeter (SG) stations with running time intervals. Through least-square and Bayesian approaches, FCN resonance parameters were estimated for each data section after obtaining the tidal parameters of mainly diurnal tidal waves. The correlation of the time variation in diurnal tidal waves and FCN period was discussed. For comparison, a similar method was used to analyze VLBI observations to study the time variability of nutation terms and FCN period. The variation trend of the FCN period totally depends on the Psi 1 wave in tidal gravity and on the retrograde annual term in nutation. We observed a similar variation trend in the FCN periods obtained from different SG stations worldwide and VLBI observations. The relation between diurnal tides and LOD variations is discussed and the possible mechanisms of the decadal variation in FCN periods were discussed. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
