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GPS measurements in Satakunta area

Technical Report:

Abstract

The Finnish Geodetic Institute, the Geological Survey of Finland, Posiva Ltd and municipalities in the district of Satakunta launched the GeoSatakunta research program in 2002 to carry out interdisciplinary studies on regional bedrock stress field and to apply the results e.g. in land use planning in the Satakunta area. The area was chosen for many reasons. Its geological diversity, extensive multi-disciplinary data coverage, and various interests of participants made the area suitable for the project. The purpose of the GPS observations is to get detailed information on recent crustal deformations in the area. The Finnish Geodetic Institute maintains e.g. national GPS network, FinnRef, and since 1995 a local research network in the Olkiluoto area. The Satakunta network differs from these, and this is the first time to obtain such detailed information of a regional network in Finland. The Satakunta GPS network consists of 13 concrete pillars for episodic GPS campaigns and the Olkiluoto permanent GPS station in the FinnRef network. The distances between the concrete pillars are 10-15 km, and the sites were chosen in a co-operation with the Geological Survey of Finland taking into account the geological structures in the area. The City of Pori made the final reconnaissance  More>>
Authors:
Poutanen, M; Nyberg, S; Ahola, J [1] 
  1. Finnish Geodetic Institute, Masala (Finland)
Publication Date:
Oct 15, 2010
Product Type:
Technical Report
Report Number:
POSIVA-WR-10-61
Resource Relation:
Other Information: 42 refs.
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 58 GEOSCIENCES; FINLAND; RADIOACTIVE WASTE DISPOSAL; BASEMENT ROCK; GLOBAL POSITIONING SYSTEM; DEFORMATION; GEOLOGIC STRUCTURES
OSTI ID:
1010740
Research Organizations:
Posiva Oy, Helsinki (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
TRN: FI1104014
Availability:
Available in fulltext at http://www.posiva.fi/files/1405/WR_2010-61web.pdf or as a soft back edition from Posiva Oy, Olkiluoto, 27160 Eurajoki, Finland, tel. +358-2-837231
Submitting Site:
FIN
Size:
64 p. pages
Announcement Date:
Apr 11, 2011

Technical Report:

Citation Formats

Poutanen, M, Nyberg, S, and Ahola, J. GPS measurements in Satakunta area. Finland: N. p., 2010. Web.
Poutanen, M, Nyberg, S, & Ahola, J. GPS measurements in Satakunta area. Finland.
Poutanen, M, Nyberg, S, and Ahola, J. 2010. "GPS measurements in Satakunta area." Finland.
@misc{etde_1010740,
title = {GPS measurements in Satakunta area}
author = {Poutanen, M, Nyberg, S, and Ahola, J}
abstractNote = {The Finnish Geodetic Institute, the Geological Survey of Finland, Posiva Ltd and municipalities in the district of Satakunta launched the GeoSatakunta research program in 2002 to carry out interdisciplinary studies on regional bedrock stress field and to apply the results e.g. in land use planning in the Satakunta area. The area was chosen for many reasons. Its geological diversity, extensive multi-disciplinary data coverage, and various interests of participants made the area suitable for the project. The purpose of the GPS observations is to get detailed information on recent crustal deformations in the area. The Finnish Geodetic Institute maintains e.g. national GPS network, FinnRef, and since 1995 a local research network in the Olkiluoto area. The Satakunta network differs from these, and this is the first time to obtain such detailed information of a regional network in Finland. The Satakunta GPS network consists of 13 concrete pillars for episodic GPS campaigns and the Olkiluoto permanent GPS station in the FinnRef network. The distances between the concrete pillars are 10-15 km, and the sites were chosen in a co-operation with the Geological Survey of Finland taking into account the geological structures in the area. The City of Pori made the final reconnaissance in the field and constructed eight pillars in 2003. The original network was expanded in 2005-2006 in Eurajoki and Rauma, and at the City of Rauma joined the co-operation. The five new pillars join the previous Olkiluoto network into the Satakunta network. There have been three annual GPS campaigns in 2003-2008. Time series of the Satakunta network are shorter than in the Olkiluoto network, and also the distances are longer. Therefore, the same accuracy than in Olkiluoto has not yet achieved. However, mm-sized movements can be excluded. Estimated velocities were small (0.2 mm/a) and mostly statistically insignificant because of relatively short time series. In this publication we describe the background of the GPS measurements, introduce the GeoSatakunta GPS network, discuss the GPS processing and present the results of the time series analysis. More measurement campaigns are anticipated in the future but it is not necessary to carry out measurements as frequently. Observing every 2-3 years one can monitor long-term trends but the epoch of abrupt movements are not possible to get accurately. The GPS network can be used also as a reference for the cities and municipalities in the area. It is the most accurately measured regional network in Finland and its free access and open structure allows the use for many common purposes. (orig.)}
place = {Finland}
year = {2010}
month = {Oct}
}