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Crustal motion at the permanent GPS station SVEA, Antractica
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Satellite Positioning.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Since the last two decades, the Global Positioning System (GPS) has played a special

role in Antarctica in the study of crustal motion. The permanent GPS station SVEA

was installed in Antarctica by the division of geodesy at KTH. In November 14, 2004

the station became operational and provides continuous GPS data.

The objective of this study is to estimate the crustal motion at SVEA. The GPS data of

the first five days of January, years 2005, 2006, 2007 and 2008 of station SVEA and six

IGS reference stations have been processed using the Bernese GPS Software 0.5.

Two methods (regression analysis and the Bernese software) were used to estimate

the velocity at SVEA. In addition, horizontal velocities have been calculated from the

plate motion calculator. A student’s t‐test has been used to judge whether the

estimated motions are significant or not at risk level 5%.

The estimated velocity components (in mm/year) are 8.0±1.9 North, 1.0 ± 0.5 East

and 0.1 ± 0.9 Up in linear regression analysis and 8.4 ±1.9 North, 1.1 ± 0.5 East and

0.2 ± 0.9 Up in the Bernese GPS Software. From the statistical test, the estimated

velocity in the North component is significant in the Bernese GPS Software at risk

level 5%. For the rest of the components, the estimated velocities are not significant

for any method. The estimated horizontal velocities are mostly consistent with plate

motion models. In order to estimate reliable and accurate crustal motion in the Up

component, the time span should be longer than four years.

Place, publisher, year, edition, pages
2009.
Series
TRITA-GIT EX ; 09-017
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-199680OAI: oai:DiVA.org:kth-199680DiVA, id: diva2:1064972
Supervisors
Available from: 2017-01-19 Created: 2017-01-13 Last updated: 2017-01-19Bibliographically approved

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CiteExportLink to record
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