| Reference : Two years of continuous measurements of tidal and nontidal variations of gravity in B... |
| Scientific journals : Article | |||
| Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography Physical, chemical, mathematical & earth Sciences : Physics | |||
| http://hdl.handle.net/10993/701 | |||
| Two years of continuous measurements of tidal and nontidal variations of gravity in Boulder, Colorado | |
| English | |
van Dam, Tonie  [NOAA/NGS and CIRES, University of Colorado, Boulder] | |
| Francis, Olivier [Observatoire Royal de Belgique, Bruxelles] | |
| 1998 | |
| Geophysical Research Letters | |
| American Geophysical Union | |
| 25 | |
| 3 | |
| 393-396 | |
| Yes (verified by ORBilu) | |
| International | |
| 0094-8276 | |
| 0094-8276 | |
| [en] superconducting gravity ; ocean tides ; solid earth tides | |
| [en] We report here on the results of an analysis of 2
years of data from NOAA’s superconducting gravimeter located at the Table Mountain Gravity Observatory in Boulder, Colorado. Observed tidal parameters, corrected for ocean loading effects, are compared with theoretical tidal parameters predicted for a non-hydrostatic inelastic Earth model and demonstrate excellent agreement. Tidal residuals, corrected for polar motion and a linear instrument drift are highly correlated with gravity changes measured by two absolute gravimeters over the same time period. The admittance to local pressure i s found to be -0.356 mGal/mbar. However, this admittance factor is found to be seasonally and frequency dependent. Correlations between rainfall events and gravity changes are observed. Attempts to model these gravity changes as exponential functions of time were unsuccessful. | |
| http://hdl.handle.net/10993/701 |
| File(s) associated to this reference | ||||||||||||||
|
Fulltext file(s):
| ||||||||||||||
All documents in ORBilu are protected by a user license.
