کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8908376 1635731 2018 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of non-tidal ocean loading for gravitational potential observations in northern Europe
ترجمه فارسی عنوان
تجزیه و تحلیل بارگیری اقیانوس غواصی برای مشاهدات بالقوه گرانشی در شمال اروپا
کلمات کلیدی
زمین شناسی نسبیتی، پتانسیل گرانشی، بارگیری اقیانوس غیرواقعی، دریای شمال،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
With the progress in clock technology heading towards a relative clock accuracy of 10−18, geodetic applications become feasible, such as determining gravity potential differences over large distances at the level of 0.1 m2 s−2. In this context, the effect of temporal gravity field variations on the new observable has to be considered. This paper studies non-tidal ocean loading effects on the gravitational potential around the North Sea with respect to signal strength and temporal behavior. Ten years of gravitational potential variations caused by non-tidal ocean loading are calculated for five locations in Germany and France using the Green's function approach. The potential variations are discussed with respect to a static gravity field, the effect of different measurement durations and the differences between two locations. The gravitational potential variations reach values of 0.2-0.5 m2 s−2 in coastal areas and decrease with increasing distance from the coast. Analyzing the potential variations for increasing measurement durations from 1 h to 48 h shows a decrease in magnitude. All investigated locations are strongly correlated. They differ mostly due to different magnitudes of the gravitational potential variations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geodynamics - Volume 119, September 2018, Pages 23-28
نویسندگان
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