The ice‐free topography of Svalbard

Journal article
(Letter)


Publication Details

Author(s): Fürst J, Navarro FJ, 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 D, Saintenoy A, Sánchez-Gámez P, Schuler T, Sevestre H, Vasilenko E, Braun M
Journal: Geophysical Research Letters
Publication year: 2018
Volume: 45
ISSN: 0094-8276


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 one million
point‐measurements, totalling more than 8700km 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 6199km3,
equivalent to 1.5cm 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 − 7300km3. 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
135m for the archipelago (likely range 123 − 158m).


FAU Authors / FAU Editors

Braun, Matthias Prof. Dr.
Professur für Geographie (Fernerkundung und GIS)
Fürst, Johannes Dr.
Institut für Geographie
Seehaus, Thorsten Dr.
Institut für Geographie


External institutions with authors

Norsk Polarinstitutt / Norwegian Polar Institute
University of Oslo


How to cite

APA:
Fürst, J., Navarro, F.J., Gillet-Chaulet, F., Huss, M., Moholdt, G., Fettweis, X.,... Braun, M. (2018). The ice‐free topography of Svalbard. Geophysical Research Letters, 45. https://dx.doi.org/10.1029/2018GL079734

MLA:
Fürst, Johannes, et al. "The ice‐free topography of Svalbard." Geophysical Research Letters 45 (2018).

BibTeX: 

Last updated on 2019-06-01 at 13:10