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Title: European tidal gravity: An improvement agreement between observations and models

Abstract

Tidal gravity observations were made at 5 sites in Europe using improved LaCoste and Romberg ET gravimeters. Special attention was paid to improving the accuracy of determining both the amplitude and phase in tidal gravity measurements. The measuring screws of the gravimeters were calibrated on the well established short range vertical gravity calibration lines at Hannover, FRG. For M{sub 2} and O{sub 1}, it is shown that there is a very significant improvement in the agreement between observations and models compared to previous European tidal gravity measurements. For O{sub 1}, the ocean tide loading and attraction is very small in Europe and these observations verify that the Dehant-Wahr anelastic body tide gravimetric factor is accurate to within 0.2%. There is no dependence upon lateral changes of Earth structure, at least within the accuracy of these measurements.

Authors:
; ;  [1]
  1. Proudman Oceanographic Lab., Bidston (England)
Publication Date:
OSTI Identifier:
5667965
Resource Type:
Journal Article
Journal Name:
Geophysical Research Letters (American Geophysical Union); (USA)
Additional Journal Information:
Journal Volume: 16:10; Journal ID: ISSN 0094-8276
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; EARTH PLANET; GRAVITATION; TIDE; MONITORING; CALIBRATION; DYNAMIC LOADS; EUROPE; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; SEAS; PLANETS; SURFACE WATERS; 580000* - Geosciences

Citation Formats

Baker, T F, Edge, R J, and Jeffries, G. European tidal gravity: An improvement agreement between observations and models. United States: N. p., 1989. Web. doi:10.1029/GL016i010p01109.
Baker, T F, Edge, R J, & Jeffries, G. European tidal gravity: An improvement agreement between observations and models. United States. doi:10.1029/GL016i010p01109.
Baker, T F, Edge, R J, and Jeffries, G. Sun . "European tidal gravity: An improvement agreement between observations and models". United States. doi:10.1029/GL016i010p01109.
@article{osti_5667965,
title = {European tidal gravity: An improvement agreement between observations and models},
author = {Baker, T F and Edge, R J and Jeffries, G},
abstractNote = {Tidal gravity observations were made at 5 sites in Europe using improved LaCoste and Romberg ET gravimeters. Special attention was paid to improving the accuracy of determining both the amplitude and phase in tidal gravity measurements. The measuring screws of the gravimeters were calibrated on the well established short range vertical gravity calibration lines at Hannover, FRG. For M{sub 2} and O{sub 1}, it is shown that there is a very significant improvement in the agreement between observations and models compared to previous European tidal gravity measurements. For O{sub 1}, the ocean tide loading and attraction is very small in Europe and these observations verify that the Dehant-Wahr anelastic body tide gravimetric factor is accurate to within 0.2%. There is no dependence upon lateral changes of Earth structure, at least within the accuracy of these measurements.},
doi = {10.1029/GL016i010p01109},
journal = {Geophysical Research Letters (American Geophysical Union); (USA)},
issn = {0094-8276},
number = ,
volume = 16:10,
place = {United States},
year = {1989},
month = {10}
}