First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements
South Georgia Island in the Southern Atlantic Ocean has been a key location for the seismic, geomagnetic and oceanic global monitoring networks. However, no permanent geodetic monitoring station had been established there despite the lack of observations from this region within, for example, the Int...
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ftunivluxembourg:oai:orbilu.uni.lu:10993/33530 2024-04-21T08:11:38+00:00 First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements Teferle, Felix Norman Hunegnaw, Addisu Abraha, Kibrom Ebuy Woodworth, Phil Williams, Simon Hibbert, Angela Smalley, Robert Dalziel, Ian Lawver, Larry ULHPC - University of Luxembourg: High Performance Computing 2017-12-11 Poster 180x1m https://orbilu.uni.lu/handle/10993/33530 https://orbilu.uni.lu/bitstream/10993/33530/1/AGUFM17-G21A-0861_reduced.pdf en eng https://orbilu.uni.lu/handle/10993/33530 info:hdl:10993/33530 https://orbilu.uni.lu/bitstream/10993/33530/1/AGUFM17-G21A-0861_reduced.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess American Geophysical Union Fall Meeting 2017, New Orleans, 10-15 December 2017, United States [US], 10-12-2017 to 15-12-2017 South Georgia Global Navigation Satellite System Vertical Land Movements Sea Level Rise Geodetic Monitoring Satellite Altimetry Tide Gauges Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique conference poster not in proceedings http://purl.org/coar/resource_type/c_18co info:eu-repo/semantics/conferencePoster 2017 ftunivluxembourg 2024-03-27T14:11:35Z South Georgia Island in the Southern Atlantic Ocean has been a key location for the seismic, geomagnetic and oceanic global monitoring networks. However, no permanent geodetic monitoring station had been established there despite the lack of observations from this region within, for example, the International GNSS Service (IGS) network of Global Navigation Satellite System (GNSS) stations. Then, in 2013 the King Edward Point (KEP) Geodetic Observatory was established with a focus on sea level studies and in support of general geoscience applications. Currently, this observatory located roughly half-way along the main island and along its northern coastline, consists of two GNSS stations (KEPA and KRSA) with local benchmark networks, allowing the height determinations from the GNSS antennas to be transferred to the KEP tide gauge (GLOSS ID 187) and forming a height reference within the International Terrestrial Reference Frame. In late 2014, three additional GNSS stations (SG01, SG02 and SG03) were established, all on small islands at the perimeter of the main island. Together the stations provide the best possible opportunity to study various geophysical processes in the region. With the GNSS-derived position time series partly reaching over 4.5 years in length, it has become possible to provide first estimates of vertical land movements for the island and KEP with its surrounding area. Together with four precise levelling campaigns of the benchmark network in 2013, 2014 and two in 2017, it has also been possible to investigate the very local character of the vertical motions, ie. the stability of the jetty upon which the tide gauge is mounted. Our measurements show that while South Georgia Island and the area around KEP are rising, the jetty and tide gauge are subsiding. In this study, we will present the preliminary results from the GNSS and levelling measurements and will discuss their impact on the sea level record from the KEP tide gauge which is ideally situated in a mid-ocean location for satellite ... Conference Object South Georgia Island University of Luxembourg: ORBilu - Open Repository and Bibliography |
institution |
Open Polar |
collection |
University of Luxembourg: ORBilu - Open Repository and Bibliography |
op_collection_id |
ftunivluxembourg |
language |
English |
topic |
South Georgia Global Navigation Satellite System Vertical Land Movements Sea Level Rise Geodetic Monitoring Satellite Altimetry Tide Gauges Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
South Georgia Global Navigation Satellite System Vertical Land Movements Sea Level Rise Geodetic Monitoring Satellite Altimetry Tide Gauges Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Teferle, Felix Norman Hunegnaw, Addisu Abraha, Kibrom Ebuy Woodworth, Phil Williams, Simon Hibbert, Angela Smalley, Robert Dalziel, Ian Lawver, Larry First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements |
topic_facet |
South Georgia Global Navigation Satellite System Vertical Land Movements Sea Level Rise Geodetic Monitoring Satellite Altimetry Tide Gauges Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
South Georgia Island in the Southern Atlantic Ocean has been a key location for the seismic, geomagnetic and oceanic global monitoring networks. However, no permanent geodetic monitoring station had been established there despite the lack of observations from this region within, for example, the International GNSS Service (IGS) network of Global Navigation Satellite System (GNSS) stations. Then, in 2013 the King Edward Point (KEP) Geodetic Observatory was established with a focus on sea level studies and in support of general geoscience applications. Currently, this observatory located roughly half-way along the main island and along its northern coastline, consists of two GNSS stations (KEPA and KRSA) with local benchmark networks, allowing the height determinations from the GNSS antennas to be transferred to the KEP tide gauge (GLOSS ID 187) and forming a height reference within the International Terrestrial Reference Frame. In late 2014, three additional GNSS stations (SG01, SG02 and SG03) were established, all on small islands at the perimeter of the main island. Together the stations provide the best possible opportunity to study various geophysical processes in the region. With the GNSS-derived position time series partly reaching over 4.5 years in length, it has become possible to provide first estimates of vertical land movements for the island and KEP with its surrounding area. Together with four precise levelling campaigns of the benchmark network in 2013, 2014 and two in 2017, it has also been possible to investigate the very local character of the vertical motions, ie. the stability of the jetty upon which the tide gauge is mounted. Our measurements show that while South Georgia Island and the area around KEP are rising, the jetty and tide gauge are subsiding. In this study, we will present the preliminary results from the GNSS and levelling measurements and will discuss their impact on the sea level record from the KEP tide gauge which is ideally situated in a mid-ocean location for satellite ... |
author2 |
ULHPC - University of Luxembourg: High Performance Computing |
format |
Conference Object |
author |
Teferle, Felix Norman Hunegnaw, Addisu Abraha, Kibrom Ebuy Woodworth, Phil Williams, Simon Hibbert, Angela Smalley, Robert Dalziel, Ian Lawver, Larry |
author_facet |
Teferle, Felix Norman Hunegnaw, Addisu Abraha, Kibrom Ebuy Woodworth, Phil Williams, Simon Hibbert, Angela Smalley, Robert Dalziel, Ian Lawver, Larry |
author_sort |
Teferle, Felix Norman |
title |
First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements |
title_short |
First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements |
title_full |
First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements |
title_fullStr |
First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements |
title_full_unstemmed |
First Vertical Land Movement Estimates on South Georgia Island: An Impact Study on Sea Level Change from Tide Gauge and Altimetry Measurements |
title_sort |
first vertical land movement estimates on south georgia island: an impact study on sea level change from tide gauge and altimetry measurements |
publishDate |
2017 |
url |
https://orbilu.uni.lu/handle/10993/33530 https://orbilu.uni.lu/bitstream/10993/33530/1/AGUFM17-G21A-0861_reduced.pdf |
genre |
South Georgia Island |
genre_facet |
South Georgia Island |
op_source |
American Geophysical Union Fall Meeting 2017, New Orleans, 10-15 December 2017, United States [US], 10-12-2017 to 15-12-2017 |
op_relation |
https://orbilu.uni.lu/handle/10993/33530 info:hdl:10993/33530 https://orbilu.uni.lu/bitstream/10993/33530/1/AGUFM17-G21A-0861_reduced.pdf |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796953636665819136 |