Jordskorpebevægelser målt med GPS: Crustal Motions Measured with GPS

Jacob H. Hasemann, Jamil Dawood, Kristina Hansen, Betina Høiberg, Joanna F. Levinsen, Michael F. Jensen & Thomas Rønn

Studenteropgave: Semesterprojekt

Abstrakt

It is possible to measure horizontal and vertical crustal motions with GPS. Regarding the horizontal movements, basis will be Sumatra where the continental movements will be analyzed before, during and after the earthquakes in 2004/ 2005. Concerning Helheim, the vertical displacements in form of uplift due to the melting of the ice sheet will be considered and the reason valued. To support the understanding of correction of data and GPS’ mode of operation an experiment has been carried out using a GPS receiver above a known point in Buddinge. For all points of interest, data from surrounding GPS sites will be analyzed to account for the actual deformations of the crust. Considering Sumatra there was no statistical proof of an upcoming earthquake, for which reason the analysis has led to no ambiguous conclusion. With GPS, it is possible to measure the uplift of Helheim and the cause may be found in either post glacial rebound or a direct melting of the ice.

UddannelserBasis - Naturvidenskabelig Bacheloruddannelse, (Bachelor uddannelse) Basis
SprogDansk
Udgivelsesdato1 jun. 2006
VejledereNiels Schrøder & Shfaqat Abbas Khan

Emneord

  • Earthquake prediction
  • Positioning
  • Positionsbestemmelse
  • Troposphere
  • Jordskælvsforudsigelse
  • Geodæsi
  • Troposfære
  • Landhævning
  • GPS
  • Data correction
  • Helheim gletscher
  • Geologi
  • Geofysik
  • Plate tectonics
  • Ionosphere
  • GIPSY
  • Helheim glacier
  • Geology
  • Pladetektonik
  • Geodesy
  • Geophysics
  • Tsunami
  • Satellitter
  • Uplift
  • Satellites
  • Sumatra
  • Datakorrektion
  • Ionosfære