کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4688879 | 1635811 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of long-term gravity variations, based on data of the GGP co-operation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Study of long-term gravity variations, based on data of the GGP co-operation Study of long-term gravity variations, based on data of the GGP co-operation](/preview/png/4688879.png)
چکیده انگلیسی
The study continues a paper with the same title, presented at the Earth Tides Symposium 2000 in Mizusawa. Now data series from 12 GGP stations could be included (BE, BO, CA, CB, MB, MC, MO, PO, ST, SU, VI, WE). The length of the data series varies between 4 and 18 years. From some stations hydrological data were available. In most cases, the drift of the gravimeters was low and nearly linear. No absolute gravity measurements were available to support the estimation of the instrumental drift. Again the annual wave and the Chandler wobble were separated by fitting two sinusoidal functions with periods of 365.25 and 432 days to the residual gravity. As to be expected, the results for the individual stations move closer together and become more reliable. The δ-values of the Chandler wobble approach to 1.16. The correspondent values of the annual wobble are slightly smaller but demonstrate considerable variability. The phase lags of both phenomena are in the order of a few degrees.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geodynamics - Volume 41, Issues 1â3, JanuaryâApril 2006, Pages 318-325
Journal: Journal of Geodynamics - Volume 41, Issues 1â3, JanuaryâApril 2006, Pages 318-325
نویسندگان
Martina Harnisch, Günter Harnisch,