A new tidal analysis of superconducting gravity observations in Western and Central Europe

Autor(en)

Branislav Habel, Bruno Meurers

Abstrakt

Tidal analysis was applied on 1 hour gravity data acquired by a subnet of 12 superconducting gravimeters situated in western and central parts of Europe. Tidal parameters for O

₁ and M

₂ were adjusted. Most of the gravity time series were provided by the Global geodynamics project. Filter effects of the decimation process were carefully studied and taken into account where necessary. The ocean loading effect included in observed tidal parameters was removed using 8 ocean models with different spatial resolutions. Two different comparisons of corrected tidal parameters were performed. As a result, the accuracy of ocean loading correction and global calibration error were evaluated. For O

₁, amplitude factors are in good agreement with the hydrostatic/elastic model DDW/He while the non-hydrostatic/inelastic model DDW/NHi better describes the M

₂ amplitude factors. The analysis of residual vectors allowed assessing the efficiency of the used ocean loading models which is about 81% (O

₁) and 97% (M

₂).

Organisation(en)

Institut für Meteorologie und Geophysik

Externe Organisation(en)

Slovak University of Technology in Bratislava

Journal

Contributions to geophysics & geodesy: a journal of geophysics, geodesy, meteorology and climatology

Band

44

Seiten

1-24

Anzahl der Seiten

24

ISSN

1335-2806

DOI

https://doi.org/10.2478/congeo-2014-0001

Publikationsdatum

12-2014

Peer-reviewed

Ja

ÖFOS 2012

105106 Geodynamik, 105111 Gravimetrie, 105122 Seismik, 105102 Allgemeine Geophysik

Schlagwörter

ASJC Scopus Sachgebiete

Geophysics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/5d22e316-69a5-4cc7-8e4a-51e176d3a01d