The ice-free topography of Svalbard

Johannes Fürst; Francisco Navarro; Fabien Gillet-Chaulet; Matthias Huss; Geir Moholdt; Xavier Fettweis; Charlotte Lang; Thorsten Seehaus; Sangtao Ai; Toby Benham; Doug Benn; Helgi Björnsson; Julian Dowdeswell; Mariusz Grabiec; Jack Kohler; Ivan Lavrentiev; Katrin Lindbäck; Kjetil Melvold; Rickard Pettersson; David Manish Rippin; Albane Saintenoy; Pablo Sánchez-Gámez; Thomas Schuler; Heidi Sevestre; Evgeny Vasilenko; Matthias Braun

doi:10.1029/2018GL079734

The ice-free topography of Svalbard

Johannes Fürst, Francisco Navarro, Fabien Gillet-Chaulet, Matthias Huss, Geir Moholdt, Xavier Fettweis, Charlotte Lang, Thorsten Seehaus, Sangtao Ai, Toby Benham, Doug Benn, Helgi Björnsson, Julian Dowdeswell, Mariusz Grabiec, Jack Kohler, Ivan Lavrentiev, Katrin Lindbäck , Kjetil Melvold, Rickard Pettersson, David Manish RippinAlbane Saintenoy, Pablo Sánchez-Gámez , Thomas Schuler, Heidi Sevestre, Evgeny Vasilenko, Matthias Braun

Environment and Geography

Research output: Contribution to journal › Article › peer-review

Abstract

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 900’000 point-measurements of glacier thickness, totalling almost 8’300 km of thickness profiles. It is publicly available for download. Our estimate for the total ice volume is 6’253km3, equivalent to 1.6cm sea-level rise. The thickness map suggests that 13% of the glacierised area is grounded below sea-level. Thickness values are provided together with a map of error estimates that comprise 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 5’200-7’400km3. 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 133m for the archipelago.

Original language	English
Number of pages	10
Journal	Geophysical Research Letters
Volume	45
Early online date	9 Oct 2018
DOIs	https://doi.org/10.1029/2018GL079734
Publication status	Published - 5 Nov 2018

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Cite this

Fürst, J., Navarro, F., Gillet-Chaulet, F., Huss, M., Moholdt, G., Fettweis, X., Lang, C., Seehaus, T., Ai, S., Benham, T., Benn, D., Björnsson, H., Dowdeswell, J., Grabiec, M., Kohler, J., Lavrentiev, I., Lindbäck , K., Melvold, K., Pettersson, R., ... Braun, M. (2018). The ice-free topography of Svalbard. Geophysical Research Letters, 45. https://doi.org/10.1029/2018GL079734

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title = "The ice-free topography of Svalbard",

abstract = " 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 900{\textquoteright}000 point-measurements of glacier thickness, totalling almost 8{\textquoteright}300 km of thickness profiles. It is publicly available for download. Our estimate for the total ice volume is 6{\textquoteright}253km3, equivalent to 1.6cm sea-level rise. The thickness map suggests that 13% of the glacierised area is grounded below sea-level. Thickness values are provided together with a map of error estimates that comprise 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 5{\textquoteright}200-7{\textquoteright}400km3. 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 133m for the archipelago.",

author = "Johannes F{\"u}rst and Francisco Navarro and Fabien Gillet-Chaulet and Matthias Huss and Geir Moholdt and Xavier Fettweis and Charlotte Lang and Thorsten Seehaus and Sangtao Ai and Toby Benham and Doug Benn and Helgi Bj{\"o}rnsson and Julian Dowdeswell and Mariusz Grabiec and Jack Kohler and Ivan Lavrentiev and Katrin Lindb{\"a}ck and Kjetil Melvold and Rickard Pettersson and Rippin, {David Manish} and Albane Saintenoy and Pablo S{\'a}nchez-G{\'a}mez and Thomas Schuler and Heidi Sevestre and Evgeny Vasilenko and Matthias Braun",

note = "{\textcopyright}2018. American Geophysical Union. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. Further copying may not be permitted; contact the publisher for details ",

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Fürst, J, Navarro, F, Gillet-Chaulet, F, Huss, M, Moholdt, G, Fettweis, X, Lang, C, Seehaus, T, Ai, S, Benham, T, Benn, D, Björnsson, H, Dowdeswell, J, Grabiec, M, Kohler, J, Lavrentiev, I, Lindbäck , K, Melvold, K, Pettersson, R, Rippin, DM, Saintenoy, A, Sánchez-Gámez , P, Schuler, T, Sevestre, H, Vasilenko, E & Braun, M 2018, 'The ice-free topography of Svalbard', Geophysical Research Letters, vol. 45. https://doi.org/10.1029/2018GL079734

TY - JOUR

T1 - The ice-free topography of Svalbard

AU - Fürst, Johannes

AU - Navarro, Francisco

AU - Gillet-Chaulet, Fabien

AU - Huss, Matthias

AU - Moholdt, Geir

AU - Fettweis, Xavier

AU - Lang, Charlotte

AU - Seehaus, Thorsten

AU - Ai, Sangtao

AU - Benham, Toby

AU - Benn, Doug

AU - Björnsson, Helgi

AU - Dowdeswell, Julian

AU - Grabiec, Mariusz

AU - Kohler, Jack

AU - Lavrentiev, Ivan

AU - Lindbäck , Katrin

AU - Melvold, Kjetil

AU - Pettersson, Rickard

AU - Rippin, David Manish

AU - Saintenoy, Albane

AU - Sánchez-Gámez , Pablo

AU - Schuler, Thomas

AU - Sevestre, Heidi

AU - Vasilenko, Evgeny

AU - Braun, Matthias

PY - 2018/11/5

Y1 - 2018/11/5

N2 - 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 900’000 point-measurements of glacier thickness, totalling almost 8’300 km of thickness profiles. It is publicly available for download. Our estimate for the total ice volume is 6’253km3, equivalent to 1.6cm sea-level rise. The thickness map suggests that 13% of the glacierised area is grounded below sea-level. Thickness values are provided together with a map of error estimates that comprise 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 5’200-7’400km3. 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 133m for the archipelago.

AB - 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 900’000 point-measurements of glacier thickness, totalling almost 8’300 km of thickness profiles. It is publicly available for download. Our estimate for the total ice volume is 6’253km3, equivalent to 1.6cm sea-level rise. The thickness map suggests that 13% of the glacierised area is grounded below sea-level. Thickness values are provided together with a map of error estimates that comprise 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 5’200-7’400km3. 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 133m for the archipelago.

U2 - 10.1029/2018GL079734

DO - 10.1029/2018GL079734

M3 - Article

SN - 0094-8276

VL - 45

JO - Geophysical Research Letters

JF - Geophysical Research Letters

ER -