Open Access
Geophysical Research Letters, volume 45, issue 21, pages 11,760-11,769
The Ice-Free Topography of Svalbard
J. J. Fürst
1
,
F. J. Navarro
2
,
Fabien Gillet Chaulet
3, 4
,
F. Gillet-Chaulet
3, 4
,
Matthias Huss
5, 6
,
Geir Moholdt
7
,
G. Moholdt
7
,
Xavier Fettweis
8
,
Charlotte Lang
8
,
Thorsten Seehaus
1
,
Songtao Ai
9
,
Toby J Benham
10
,
T. J. Benham
10
,
Douglas Keith Bern
11
,
Helgi Björnsson
12
,
Helgi K. Björnsson
12
,
Julian A. Dowdeswell
10
,
J.A. DOWDESWELL
10
,
Mariusz Grabiec
13
,
J.A Kohler
7
,
Ivan Lavrentiev
14
,
I. I. Lavrentiev
14
,
Karl-Fredrik Lindbäck
7
,
Kjetil Melvold
1, 5, 15
,
R. Pettersson
16
,
D. M. Rippin
17
,
Albane Saintenoy
18
,
P. SÁNCHEZ-GÁMEZ
2
,
Thomas C. Schuler
19, 20
,
Heidi Sevestre
11
,
Evgeny Vasilenko
21
,
Matthias H. Braun
1
,
Matthias Braun
1
3
Institut des Géosciences de l'Environnement; Grenoble France
|
7
Norwegian Polar Institute, Fram Centre; Tromsø Norway
|
15
The Norwegian Water Resources and Energy Directorate (NVE); Oslo Norway
|
20
Department of Arctic Geophysics; UNIS University Center on Svalbard; Longyearbyen Norway
|
21
Institute of Industrial Research Akadempribor; Academy of Sciences of Uzbekistan; Tashkent Uzbekistan
|
Publication type: Journal Article
Publication date: 2018-10-10
Journal:
Geophysical Research Letters
scimago Q1
SJR: 1.850
CiteScore: 9.0
Impact factor: 4.6
ISSN: 00948276, 19448007
Geophysics
General Earth and Planetary Sciences
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 1 million point measurements, totalling more than 8,700 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 6,199 km3 , equivalent to 1.5-cm sea level rise. The thickness map suggests that 13% of the glacierized 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 5,200–7,300 km3 . 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 123–158 m).
Found
Are you a researcher?
Create a profile to get free access to personal recommendations for colleagues and new articles.
Profiles