Publication Date:
2017-04-04
Description:
Abstract
A semi-permanent Global Positioning System (GPS) network of about 30 vertices: Victoria Land
Network for DEFormation control (VLNDEF) has been set up since Austral summer 1998 at Terra
Nova Bay (TNB) near Ross Sea in Antarctica. A permanent GPS station TNB1 based on dual
frequency Ashtech P-code GPS receiver with a Choke Ring Antenna has been installed on a
bedrock monument in October 1998 and has recorded continuously until recently. The GPS
network has been routinely surveyed every two summers using high quality dual frequency GPS
receivers; data, metadata and solutions are available to the scientific community at
(http://www.geodant.unimore.it). Results of a distributed session approach applied to process GPS
data of the VLNDEF network are presented in this paper, based on Gamit/Globk 10.35 GPS
analysis software. An improved reference frame definition was implemented using Globk package
in order to compute Antarctic intra-plate residual velocities and to invert the strain field from GPS
data in this region. The strain rate obtained from the inversion of VLNDEF GPS data has been
computed following the method proposed by Feigl et al. using QOCA (quasi observation
combination analysis) 1.34 GPS data analysis package.
Description:
Published
Description:
Hotel Panamericano Buenos Aires, Carlos Pellegrini 551, Buenos Aires, Argentina
Description:
3.3. Geodinamica e struttura dell'interno della Terra
Description:
restricted
Keywords:
Antarctica
;
GPS
;
Strain Rate
;
Block Model
;
04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
Abstract
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