کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5781196 1635741 2017 34 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis strategies for combining continuous and episodic GNSS for studies of neo-tectonics in Northern-Norway
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Analysis strategies for combining continuous and episodic GNSS for studies of neo-tectonics in Northern-Norway
چکیده انگلیسی
Crustal deformation in the seismically active Nordland area in Northern Norway is estimated based on a combination of data from local episodic epGNSS campaigns (three 5-day campaigns in 1999, 2008 and 2015) and continuously operating cGNSS stations in the area that were mainly established in 2008 and in 2009. To establish a local long-term stable reference frame, which is consistent both with the epGNSS network and the network of newer cGNSS, a three-step procedure for reference frame realization is used to get consistent results from all the stations in the area. Analysis of the main error sources shows that uncertainties for the episodic epGNSS stations are around 0.2 mm/yr in the horizontal components and 0.5 mm/yr in the vertical component. The results support earlier findings that Ranafjord area of the Nordland is undergoing crustal spreading with horizontal displacement velocities of ca. 1.0 ± 0.2 mm/yr, predominantly in the east-west direction. The results also show a gradient in the uplift along the coast of Nordland that is larger than predicted by existing glacial isostatic adjustment models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geodynamics - Volume 109, September 2017, Pages 32-40
نویسندگان
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