Articles | Volume 12, issue 12
Research article
 | Highlight paper
03 Dec 2018
Research article | Highlight paper |  | 03 Dec 2018

Seasonal to decadal variability in ice discharge from the Greenland Ice Sheet

Michalea D. King, Ian M. Howat, Seongsu Jeong, Myoung J. Noh, Bert Wouters, Brice Noël, and Michiel R. van den Broeke

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Cited articles

Andersen, M. L., Nettles, M., Elosegui, P., Larsen, T. B., Hamilton, G. S., and Stearns, L. A.: Quantitative estimates of velocity sensitivity to surface melt variations at a large Greenland outlet glacier, J. Glaciol., 57, 609–620,, 2011. 
Andersen, M. L., Stenseng, L., Skourup, H., Colgan, W., Khan, S. A., Kristensen, S. S., Andersen, S. B., Box, J. E., Ahlstrøm, A. P., Fettweis, X. and Forsberg, R.: Basin-scale partitioning of Greenland ice sheet mass balance components (2007–2011), Earth Planet. Sci. Lett., 409, 89–95,, 2015. 
Bartholomaus, T. C., Stearns, L. A., Sutherland, D. A., Shroyer, E. L., Nash, J. D., Walker, R. T., Catania, G., Felikson, D., Carroll, D., Fried, M. J., Noël, B. P. Y., and Broeke, M. R. V. A. N. D. E. N.: Contrasts in the response of adjacent fjords and glaciers to ice-sheet surface melt in West Greenland, Ann. Glaciol., 57, 25–38,, 2016. 
Bartholomew, I., Nienow, P., Mair, D., Hubbard, A., King, M. A., and Sole, A.: Seasonal evolution of subglacial drainage and acceleration in a Greenland outlet glacier, Nat. Geosci., 3, 408–411,, 2010. 
Bendtsen, J., Mortensen, J., Lennert, K., K. Ehn, J., Boone, W., Galindo, V., Hu, Y., Dmitrenko, I. A., Kirillov, S. A., Kjeldsen, K. K., Kristoffersen, Y., G. Barber, D. and Rysgaard, S.: Sea ice breakup and marine melt of a retreating tidewater outlet glacier in northeast Greenland (81 N), Sci. Rep., 7, 4941,, 2017. 
Short summary
We derive the first continuous record of total ice discharged from all large Greenland outlet glaciers over the 2000–2016 period, resolving a distinct pattern of seasonal variability. We compare these results to glacier retreat and meltwater runoff and find that while runoff has a limited impact on ice discharge in summer, long-term changes in discharge are highly correlated to retreat. These results help to better understand Greenland outlet glacier sensitivity over a range of timescales.