Detection of ice mass variation using GNSS measurements at Svalbard
We compare observed uplift rates of Global Navigation Satellite Systems (GNSS) with geophysical predictions at sites located on Spitsbergen. We show here that using modern postglacial rebound models, realistic mass balance for Present Day Ice Melting (PDIM) and taking the deglaciation of the Little...
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ftchalmersuniv:oai:research.chalmers.se:505045 2023-05-15T16:34:56+02:00 Detection of ice mass variation using GNSS measurements at Svalbard Rajner, Marcin 2018 text https://doi.org/10.1016/j.jog.2018.06.001 https://research.chalmers.se/en/publication/505045 unknown http://dx.doi.org/10.1016/j.jog.2018.06.001 https://research.chalmers.se/en/publication/505045 Other Earth and Related Environmental Sciences Geophysics Geochemistry Loading deformations present day ice melting GNSS mass balance glacial isostatic adjustment Svalbard 2018 ftchalmersuniv https://doi.org/10.1016/j.jog.2018.06.001 2022-12-11T07:08:07Z We compare observed uplift rates of Global Navigation Satellite Systems (GNSS) with geophysical predictions at sites located on Spitsbergen. We show here that using modern postglacial rebound models, realistic mass balance for Present Day Ice Melting (PDIM) and taking the deglaciation of the Little Ice Age (LIA) into account, we can close the overall uplift budget at a level of a few millimetres per year. For this study we used GNSS data from well-established geodetic sites in Ny-Ålesund and the new data from Hornsund. The significant increase of uplift rates since the beginning of 2011 was observed at both gnss sites. These height changes are attributed to recent increased ice mass loss of 6.0 Gt yr−1 for Svalbard. The total mass loss is estimated at 14.7 Gt yr−1. Ice unloading caused also a noticeable increase of distance between Ny-Ålesund and Hornsund. We show that the specific location of the two sites facilitates inference of differential mass loss within the Svalbard Archipelago. Other/Unknown Material Hornsund Ny Ålesund Ny-Ålesund Svalbard Spitsbergen Chalmers University of Technology: Chalmers research Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Ny-Ålesund Svalbard Svalbard Archipelago Journal of Geodynamics 121 20 25 |
institution |
Open Polar |
collection |
Chalmers University of Technology: Chalmers research |
op_collection_id |
ftchalmersuniv |
language |
unknown |
topic |
Other Earth and Related Environmental Sciences Geophysics Geochemistry Loading deformations present day ice melting GNSS mass balance glacial isostatic adjustment Svalbard |
spellingShingle |
Other Earth and Related Environmental Sciences Geophysics Geochemistry Loading deformations present day ice melting GNSS mass balance glacial isostatic adjustment Svalbard Rajner, Marcin Detection of ice mass variation using GNSS measurements at Svalbard |
topic_facet |
Other Earth and Related Environmental Sciences Geophysics Geochemistry Loading deformations present day ice melting GNSS mass balance glacial isostatic adjustment Svalbard |
description |
We compare observed uplift rates of Global Navigation Satellite Systems (GNSS) with geophysical predictions at sites located on Spitsbergen. We show here that using modern postglacial rebound models, realistic mass balance for Present Day Ice Melting (PDIM) and taking the deglaciation of the Little Ice Age (LIA) into account, we can close the overall uplift budget at a level of a few millimetres per year. For this study we used GNSS data from well-established geodetic sites in Ny-Ålesund and the new data from Hornsund. The significant increase of uplift rates since the beginning of 2011 was observed at both gnss sites. These height changes are attributed to recent increased ice mass loss of 6.0 Gt yr−1 for Svalbard. The total mass loss is estimated at 14.7 Gt yr−1. Ice unloading caused also a noticeable increase of distance between Ny-Ålesund and Hornsund. We show that the specific location of the two sites facilitates inference of differential mass loss within the Svalbard Archipelago. |
author |
Rajner, Marcin |
author_facet |
Rajner, Marcin |
author_sort |
Rajner, Marcin |
title |
Detection of ice mass variation using GNSS measurements at Svalbard |
title_short |
Detection of ice mass variation using GNSS measurements at Svalbard |
title_full |
Detection of ice mass variation using GNSS measurements at Svalbard |
title_fullStr |
Detection of ice mass variation using GNSS measurements at Svalbard |
title_full_unstemmed |
Detection of ice mass variation using GNSS measurements at Svalbard |
title_sort |
detection of ice mass variation using gnss measurements at svalbard |
publishDate |
2018 |
url |
https://doi.org/10.1016/j.jog.2018.06.001 https://research.chalmers.se/en/publication/505045 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) |
geographic |
Hornsund Ny-Ålesund Svalbard Svalbard Archipelago |
geographic_facet |
Hornsund Ny-Ålesund Svalbard Svalbard Archipelago |
genre |
Hornsund Ny Ålesund Ny-Ålesund Svalbard Spitsbergen |
genre_facet |
Hornsund Ny Ålesund Ny-Ålesund Svalbard Spitsbergen |
op_relation |
http://dx.doi.org/10.1016/j.jog.2018.06.001 https://research.chalmers.se/en/publication/505045 |
op_doi |
https://doi.org/10.1016/j.jog.2018.06.001 |
container_title |
Journal of Geodynamics |
container_volume |
121 |
container_start_page |
20 |
op_container_end_page |
25 |
_version_ |
1766025039784706048 |