The ice-free topography of Svalbard
We present a first version of the Svalbard ice-free topography (SVIFT1.0) using a mass conserving approach for mapping glacier ice thickness. SVIFT1.0 is informed by more than one million point-measurements, totalling more than 8700 km of thickness profiles. SVIFT1.0 is publicly available and repres...
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
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2018
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-icefree-topography-of-svalbard(4c4e3fdc-b038-4f06-9a37-9da39b8fd502).html https://doi.org/10.1029/2018GL079734 https://research-repository.st-andrews.ac.uk/bitstream/10023/17646/1/F_rst_2018_GRL_Ice_freetopography_finalpubversion.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/4c4e3fdc-b038-4f06-9a37-9da39b8fd502 2023-05-15T16:22:13+02:00 The ice-free topography of Svalbard Fürst, Johannes J. Navarro, Francisco Gillet-Chaulet, Fabien Huss, Matthias Moholdt, Geir Fettweis, Xavier Lang, Charlotte Seehaus, Thorsten Ai, Songtao Benham, Toby J. Benn, Doug Björnsson, Helgi Dowdeswell, Julian A. Grabiec, Mariusz Kohler, Jack Lavrentiev, Ivan Lindbäck, Katrin Melvold, Kjetil Pettersson, Rickard Rippin, David Saintenoy, Albane Sánchez-Gámez, Pablo Schuler, Thomas V. Sevestre, Heïdi Vasilenko, Evgeny Braun, Matthias H. 2018-11-05 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-icefree-topography-of-svalbard(4c4e3fdc-b038-4f06-9a37-9da39b8fd502).html https://doi.org/10.1029/2018GL079734 https://research-repository.st-andrews.ac.uk/bitstream/10023/17646/1/F_rst_2018_GRL_Ice_freetopography_finalpubversion.pdf eng eng info:eu-repo/semantics/openAccess Fürst , J J , Navarro , F , Gillet-Chaulet , F , Huss , M , Moholdt , G , Fettweis , X , Lang , C , Seehaus , T , Ai , S , Benham , T J , Benn , D , Björnsson , H , Dowdeswell , J A , Grabiec , M , Kohler , J , Lavrentiev , I , Lindbäck , K , Melvold , K , Pettersson , R , Rippin , D , Saintenoy , A , Sánchez-Gámez , P , Schuler , T V , Sevestre , H , Vasilenko , E & Braun , M H 2018 , ' The ice-free topography of Svalbard ' , Geophysical Research Letters , vol. Early View . https://doi.org/10.1029/2018GL079734 article 2018 ftunstandrewcris https://doi.org/10.1029/2018GL079734 2021-12-26T14:33:17Z We present a first version of the Svalbard ice-free topography (SVIFT1.0) using a mass conserving approach for mapping glacier ice thickness. SVIFT1.0 is informed by more than one million point-measurements, totalling more than 8700 km of thickness profiles. SVIFT1.0 is publicly available and represents the geometric state around the year 2010. Our estimate for the total ice volume is 6199 km 3 , equivalent to 1.5 cm sea-level rise. The thickness map suggests that 13% of the glacierised area is grounded below sea-level. A complementary map of error estimates comprises uncertainties in the thickness surveys as well as in other input variables. Aggregated error estimates are used to define a likely ice-volume range of 5200 — 7300 km 3 . The ice-front thickness of marine-terminating glaciers is a key quantity for ice-loss attribution because it controls the potential ice discharge by iceberg calving into the ocean. We find a mean ice-front thickness of 135 m for the archipelago (likely range 123 — 158m). Article in Journal/Newspaper glacier Svalbard University of St Andrews: Research Portal Svalbard Geophysical Research Letters 45 21 11,760 11,769 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
We present a first version of the Svalbard ice-free topography (SVIFT1.0) using a mass conserving approach for mapping glacier ice thickness. SVIFT1.0 is informed by more than one million point-measurements, totalling more than 8700 km of thickness profiles. SVIFT1.0 is publicly available and represents the geometric state around the year 2010. Our estimate for the total ice volume is 6199 km 3 , equivalent to 1.5 cm sea-level rise. The thickness map suggests that 13% of the glacierised area is grounded below sea-level. A complementary map of error estimates comprises uncertainties in the thickness surveys as well as in other input variables. Aggregated error estimates are used to define a likely ice-volume range of 5200 — 7300 km 3 . The ice-front thickness of marine-terminating glaciers is a key quantity for ice-loss attribution because it controls the potential ice discharge by iceberg calving into the ocean. We find a mean ice-front thickness of 135 m for the archipelago (likely range 123 — 158m). |
format |
Article in Journal/Newspaper |
author |
Fürst, Johannes J. Navarro, Francisco Gillet-Chaulet, Fabien Huss, Matthias Moholdt, Geir Fettweis, Xavier Lang, Charlotte Seehaus, Thorsten Ai, Songtao Benham, Toby J. Benn, Doug Björnsson, Helgi Dowdeswell, Julian A. Grabiec, Mariusz Kohler, Jack Lavrentiev, Ivan Lindbäck, Katrin Melvold, Kjetil Pettersson, Rickard Rippin, David Saintenoy, Albane Sánchez-Gámez, Pablo Schuler, Thomas V. Sevestre, Heïdi Vasilenko, Evgeny Braun, Matthias H. |
spellingShingle |
Fürst, Johannes J. Navarro, Francisco Gillet-Chaulet, Fabien Huss, Matthias Moholdt, Geir Fettweis, Xavier Lang, Charlotte Seehaus, Thorsten Ai, Songtao Benham, Toby J. Benn, Doug Björnsson, Helgi Dowdeswell, Julian A. Grabiec, Mariusz Kohler, Jack Lavrentiev, Ivan Lindbäck, Katrin Melvold, Kjetil Pettersson, Rickard Rippin, David Saintenoy, Albane Sánchez-Gámez, Pablo Schuler, Thomas V. Sevestre, Heïdi Vasilenko, Evgeny Braun, Matthias H. The ice-free topography of Svalbard |
author_facet |
Fürst, Johannes J. Navarro, Francisco Gillet-Chaulet, Fabien Huss, Matthias Moholdt, Geir Fettweis, Xavier Lang, Charlotte Seehaus, Thorsten Ai, Songtao Benham, Toby J. Benn, Doug Björnsson, Helgi Dowdeswell, Julian A. Grabiec, Mariusz Kohler, Jack Lavrentiev, Ivan Lindbäck, Katrin Melvold, Kjetil Pettersson, Rickard Rippin, David Saintenoy, Albane Sánchez-Gámez, Pablo Schuler, Thomas V. Sevestre, Heïdi Vasilenko, Evgeny Braun, Matthias H. |
author_sort |
Fürst, Johannes J. |
title |
The ice-free topography of Svalbard |
title_short |
The ice-free topography of Svalbard |
title_full |
The ice-free topography of Svalbard |
title_fullStr |
The ice-free topography of Svalbard |
title_full_unstemmed |
The ice-free topography of Svalbard |
title_sort |
ice-free topography of svalbard |
publishDate |
2018 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-icefree-topography-of-svalbard(4c4e3fdc-b038-4f06-9a37-9da39b8fd502).html https://doi.org/10.1029/2018GL079734 https://research-repository.st-andrews.ac.uk/bitstream/10023/17646/1/F_rst_2018_GRL_Ice_freetopography_finalpubversion.pdf |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
glacier Svalbard |
genre_facet |
glacier Svalbard |
op_source |
Fürst , J J , Navarro , F , Gillet-Chaulet , F , Huss , M , Moholdt , G , Fettweis , X , Lang , C , Seehaus , T , Ai , S , Benham , T J , Benn , D , Björnsson , H , Dowdeswell , J A , Grabiec , M , Kohler , J , Lavrentiev , I , Lindbäck , K , Melvold , K , Pettersson , R , Rippin , D , Saintenoy , A , Sánchez-Gámez , P , Schuler , T V , Sevestre , H , Vasilenko , E & Braun , M H 2018 , ' The ice-free topography of Svalbard ' , Geophysical Research Letters , vol. Early View . https://doi.org/10.1029/2018GL079734 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2018GL079734 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
21 |
container_start_page |
11,760 |
op_container_end_page |
11,769 |
_version_ |
1766010194135875584 |