Publication Abstracts

Andersen et al. 2019

Andersen, J.K., R.S. Fausto, K. Hansen, J.E. Box, S.B. Andersen, A.P. Ahlstrøm, D. van As, M. Citterio, W. Colgan, N.B. Karlsson, K.K. Kjeldsen, N.J. Korsgaard, S.H. Larsen, K.D. Mankoff, A.Ø. Pedersen, C.L. Shields, A. Solgaard, and B. Vandecrux, 2019: Update of annual calving front lines for 47 marine terminating outlet glaciers in Greenland (1999-2018). Geol. Surv. Denm. Greenl. Bull., 43, e2019430202, doi:10.34194/GEUSB-201943-02-02.

The Greenland ice sheet has been losing mass in response to increased surface melting as well as discharge of ice from marine terminating outlet glaciers. Marine terminating outlet glaciers flow to the ocean where they lose mass by e.g. iceberg calving. Currently, the mass loss from the Greenland ice sheet is the largest Arctic contributor to global sea-level rise. Therefore, monitoring changes in the Greenland ice sheet is essential to provide policy makers with reliable data.

There is a consensus that most marine terminating outlet glaciers have retreated in recent decades, and that the increased calving rates are a response to recent atmospheric and oceanic warming. The rate of dynamic mass loss is determined by changes of the glacier calving front (i.e. its terminus) position, ice thickness and changes in ice flow. Ocean temperature and fjord circulation also influence the calving front stability by melting the glacier below the water line, thinning the ice that is in contact with water. Change in calving front position is therefore an important indicator for monitoring the dynamic behaviour of the upstream area of the ice sheet, which is further modulated by local topographic features and buttressing effects.

The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) is dedicated to monitoring changes in the mass budget of the Greenland ice sheet, including monitoring of the calving front lines of marine terminating outlet glaciers. Here, we present an updated collection of annual measurements of end-of-melt-season calving front lines for 47 marine terminating outlet glaciers in Greenland between 1999 and 2018. We also present an example application of the data set, in which we estimate area changes for this group of glaciers since 1999. The Greenland calving front lines were measured from optical satellite imagery obtained from Landsat, Aster, and Sentinel-2. The PROMICE calving front product is freely available for download as ESRI shapefiles.

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BibTeX Citation

  author={Andersen, J. K. and Fausto, R. S. and Hansen, K. and Box, J. E. and Andersen, S. B. and Ahlstrøm, A. P. and van As, D. and Citterio, M. and Colgan, W. and Karlsson, N. B. and Kjeldsen, K. K. and Korsgaard, N. J. and Larsen, S. H. and Mankoff, K. D. and Pedersen, A.Ø. and Shields, C. L. and Solgaard, A. and Vandecrux, B.},
  title={Update of annual calving front lines for 47 marine terminating outlet glaciers in Greenland (1999-2018)},
  journal={Geol. Surv. Denm. Greenl. Bull.},

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RIS Citation

ID  - an08200c
AU  - Andersen, J. K.
AU  - Fausto, R. S.
AU  - Hansen, K.
AU  - Box, J. E.
AU  - Andersen, S. B.
AU  - Ahlstrøm, A. P.
AU  - van As, D.
AU  - Citterio, M.
AU  - Colgan, W.
AU  - Karlsson, N. B.
AU  - Kjeldsen, K. K.
AU  - Korsgaard, N. J.
AU  - Larsen, S. H.
AU  - Mankoff, K. D.
AU  - Pedersen, A.Ø.
AU  - Shields, C. L.
AU  - Solgaard, A.
AU  - Vandecrux, B.
PY  - 2019
TI  - Update of annual calving front lines for 47 marine terminating outlet glaciers in Greenland (1999-2018)
JA  - Geol. Surv. Denm. Greenl. Bull.
VL  - 43
SP  - e2019430202
DO  - 10.34194/GEUSB-201943-02-02
ER  -

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