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Using the Nordic Geodetic Observing System for Land Uplift Studies : Volume 6, Issue 1 (30/01/2014)

By Nordman, M.

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Book Id: WPLBN0004022003
Format Type: PDF Article :
File Size: Pages 25
Reproduction Date: 2015

Title: Using the Nordic Geodetic Observing System for Land Uplift Studies : Volume 6, Issue 1 (30/01/2014)  
Author: Nordman, M.
Volume: Vol. 6, Issue 1
Language: English
Subject: Science, Solid, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Poutanen, M., Virtanen, J., Kairus, A., & Nordman, M. (2014). Using the Nordic Geodetic Observing System for Land Uplift Studies : Volume 6, Issue 1 (30/01/2014). Retrieved from http://worldlibrary.in/


Description
Description: Finnish Geodetic Institute, P.O. Box 15, 02431 Masala, Finland. Geodetic observing systems have been planned and developed during the last decade. An ideal observing system consists of a network of geodetic observing stations with several techniques at the same site, publicly accessible databases, and as a product delivers data time series, combination of techniques or some other results obtained from the datasets. Globally, there is the IAG GGOS (Global Geodetic Observing System), and there are ongoing attempts to create also regional observing systems. In this paper we introduce one regional system, NGOS (Nordic Geodetic Observing System) hosted by the Nordic Geodetic Commission (NKG).

Data availability and accessibility are one of the major issues today. We discuss on general data-related topics, and introduce a pilot database project of NGOS. As a demonstration of the use of such database, we apply it for postglacial rebound studies in the Fennoscandian area. We compare land uplift values from three techniques, GNSS, tide gauges and absolute gravimeter, with the Nordic NKG2005LU land uplift model. The purpose is to evaluate the data obtained from different techniques and different sources and get the most reliable values for the uplift using publicly available data.

It is also important to consider the relation between geodetic observing systems and specific projects like DynaQlim (Upper Mantle Dynamics and Quaternary Climate in Cratonic Areas) or EPOS (European Plate Observing System). The natural aim of observing systems will be to produce data and other products needed by such multidisciplinary projects, but their needs may currently exceed the scope of an observing system. We discuss what requirements the projects pose to observing systems and their development.


Summary
Using the Nordic Geodetic Observing System for land uplift studies

Excerpt
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