Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements

South Georgia Island, the main land outcrop on the South Georgia microcontinent (SGM), is located approximately 1,400 km east of the Falkland Islands and approximately 1,400 km northeast of the northernmost tip of the Antarctic peninsular. The SGM is believed to lie south of the North Scotia Ridge (...

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Main Authors: Teferle, Felix Norman, Dalziel, I W D, Hunegnaw, Addisu, Hibbert, Angela, Williams, Simon D. P., Woodworth, Philip L., Smalley, Robert Jr., Lawver
Format: Conference Object
Language:English
Published: 2019
Subjects:
Online Access:https://orbilu.uni.lu/handle/10993/39978
https://orbilu.uni.lu/bitstream/10993/39978/1/Teferleetal_ISAES2019.pdf
id ftunivluxembourg:oai:orbilu.uni.lu:10993/39978
record_format openpolar
spelling ftunivluxembourg:oai:orbilu.uni.lu:10993/39978 2024-10-20T14:03:26+00:00 Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements Teferle, Felix Norman Dalziel, I W D Hunegnaw, Addisu Hibbert, Angela Williams, Simon D. P. Woodworth, Philip L. Smalley, Robert Jr. Lawver 2019-07-25 21 https://orbilu.uni.lu/handle/10993/39978 https://orbilu.uni.lu/bitstream/10993/39978/1/Teferleetal_ISAES2019.pdf en eng https://orbilu.uni.lu/handle/10993/39978 info:hdl:10993/39978 https://orbilu.uni.lu/bitstream/10993/39978/1/Teferleetal_ISAES2019.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess 13th International Symposium on Antarctic Earth Science (ISAES), Incheon, South Korea [KR], 22-07-2019 to 26-07-2019 Global Navigation Satellite System Vertical Land Movements Tide Gauge Sea Level Rise Geodesy Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper 2019 ftunivluxembourg 2024-09-27T07:04:09Z South Georgia Island, the main land outcrop on the South Georgia microcontinent (SGM), is located approximately 1,400 km east of the Falkland Islands and approximately 1,400 km northeast of the northernmost tip of the Antarctic peninsular. The SGM is believed to lie south of the North Scotia Ridge (NSR), which forms the boundary to the South America Plate, while to the south it is bordered by the Scotia Plate (SP). In its sub-Antarctic location, the island is largely covered by mountain glaciers which have been reported to be retreating due to climatic change. Furthermore, during past glaciation periods the island and its shelf area, stretching much of the SGM, have been ice covered as was revealed by scarring of the sub-oceanic topography. Together with ongoing tectonics along the NSR and recent seismicity at the SP boundary, these processes have the ability to produce significant uplift on local to regional scales. With its mid-ocean location in the Southern Atlantic Ocean South Georgia Island is in a key position for the oceanic and geodetic global monitoring networks. As these net-works suffer from a Hemisphere imbalance with the number of stations in the Northern Hemisphere outnumbering those in the Southern Hemisphere, operating these stations to the highest standards is of key scientific value. It is of particular interest to monitor the tide gauge (GLOSS ID 187) at King Edward Point (KEP) for vertical land movements to establish a continuous record of its datum within the Permanent Service for Mean Sea Level (PSMSL), which in turn makes it useful for long-term sea level studies and satellite altimetry calibrations. With the establishment of five GNSS stations on the islands by teams from Luxembourg, the UK and the USA during 2013 to 2015, and the scientific analysis of these data within a global network of stations, it has now become possible to study present-day vertical land movements and their impacts. Furthermore, together with four precise levelling campaigns of the KEP benchmark network in 2013, ... Conference Object Antarc* Antarctic South Georgia Island University of Luxembourg: ORBilu - Open Repository and Bibliography Antarctic The Antarctic South Georgia Island ENVELOPE(-36.750,-36.750,-54.250,-54.250) North Scotia Ridge ENVELOPE(-51.431,-51.431,-53.581,-53.581) King Edward Point ENVELOPE(-36.496,-36.496,-54.284,-54.284)
institution Open Polar
collection University of Luxembourg: ORBilu - Open Repository and Bibliography
op_collection_id ftunivluxembourg
language English
topic Global Navigation Satellite System
Vertical Land Movements
Tide Gauge
Sea Level Rise
Geodesy
Physical
chemical
mathematical & earth Sciences
Earth sciences & physical geography
Physique
chimie
mathématiques & sciences de la terre
Sciences de la terre & géographie physique
spellingShingle Global Navigation Satellite System
Vertical Land Movements
Tide Gauge
Sea Level Rise
Geodesy
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
Dalziel, I W D
Hunegnaw, Addisu
Hibbert, Angela
Williams, Simon D. P.
Woodworth, Philip L.
Smalley, Robert Jr.
Lawver
Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements
topic_facet Global Navigation Satellite System
Vertical Land Movements
Tide Gauge
Sea Level Rise
Geodesy
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, the main land outcrop on the South Georgia microcontinent (SGM), is located approximately 1,400 km east of the Falkland Islands and approximately 1,400 km northeast of the northernmost tip of the Antarctic peninsular. The SGM is believed to lie south of the North Scotia Ridge (NSR), which forms the boundary to the South America Plate, while to the south it is bordered by the Scotia Plate (SP). In its sub-Antarctic location, the island is largely covered by mountain glaciers which have been reported to be retreating due to climatic change. Furthermore, during past glaciation periods the island and its shelf area, stretching much of the SGM, have been ice covered as was revealed by scarring of the sub-oceanic topography. Together with ongoing tectonics along the NSR and recent seismicity at the SP boundary, these processes have the ability to produce significant uplift on local to regional scales. With its mid-ocean location in the Southern Atlantic Ocean South Georgia Island is in a key position for the oceanic and geodetic global monitoring networks. As these net-works suffer from a Hemisphere imbalance with the number of stations in the Northern Hemisphere outnumbering those in the Southern Hemisphere, operating these stations to the highest standards is of key scientific value. It is of particular interest to monitor the tide gauge (GLOSS ID 187) at King Edward Point (KEP) for vertical land movements to establish a continuous record of its datum within the Permanent Service for Mean Sea Level (PSMSL), which in turn makes it useful for long-term sea level studies and satellite altimetry calibrations. With the establishment of five GNSS stations on the islands by teams from Luxembourg, the UK and the USA during 2013 to 2015, and the scientific analysis of these data within a global network of stations, it has now become possible to study present-day vertical land movements and their impacts. Furthermore, together with four precise levelling campaigns of the KEP benchmark network in 2013, ...
format Conference Object
author Teferle, Felix Norman
Dalziel, I W D
Hunegnaw, Addisu
Hibbert, Angela
Williams, Simon D. P.
Woodworth, Philip L.
Smalley, Robert Jr.
Lawver
author_facet Teferle, Felix Norman
Dalziel, I W D
Hunegnaw, Addisu
Hibbert, Angela
Williams, Simon D. P.
Woodworth, Philip L.
Smalley, Robert Jr.
Lawver
author_sort Teferle, Felix Norman
title Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements
title_short Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements
title_full Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements
title_fullStr Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements
title_full_unstemmed Present-Day Land and Sea Level Changes around South Georgia Island: Results from Precise Levelling, GNSS, Tide Gauge and Satellite Altimetry Measurements
title_sort present-day land and sea level changes around south georgia island: results from precise levelling, gnss, tide gauge and satellite altimetry measurements
publishDate 2019
url https://orbilu.uni.lu/handle/10993/39978
https://orbilu.uni.lu/bitstream/10993/39978/1/Teferleetal_ISAES2019.pdf
long_lat ENVELOPE(-36.750,-36.750,-54.250,-54.250)
ENVELOPE(-51.431,-51.431,-53.581,-53.581)
ENVELOPE(-36.496,-36.496,-54.284,-54.284)
geographic Antarctic
The Antarctic
South Georgia Island
North Scotia Ridge
King Edward Point
geographic_facet Antarctic
The Antarctic
South Georgia Island
North Scotia Ridge
King Edward Point
genre Antarc*
Antarctic
South Georgia Island
genre_facet Antarc*
Antarctic
South Georgia Island
op_source 13th International Symposium on Antarctic Earth Science (ISAES), Incheon, South Korea [KR], 22-07-2019 to 26-07-2019
op_relation https://orbilu.uni.lu/handle/10993/39978
info:hdl:10993/39978
https://orbilu.uni.lu/bitstream/10993/39978/1/Teferleetal_ISAES2019.pdf
op_rights open access
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
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