Articles | Volume 13, issue 8
https://doi.org/10.5194/tc-13-2241-2019
https://doi.org/10.5194/tc-13-2241-2019
Research article
 | 
30 Aug 2019
Research article |  | 30 Aug 2019

Greenland Ice Sheet late-season melt: investigating multiscale drivers of K-transect events

Thomas J. Ballinger, Thomas L. Mote, Kyle Mattingly, Angela C. Bliss, Edward Hanna, Dirk van As, Melissa Prieto, Saeideh Gharehchahi, Xavier Fettweis, Brice Noël, Paul C. J. P. Smeets, Carleen H. Reijmer, Mads H. Ribergaard, and John Cappelen

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Cited articles

Aemisegger, F. and Papritz, L.: A climatology of strong large-scale ocean evaporation events. Part I: Identification, global distribution, and associated climate conditions, J. Climate, 31, 7287–7312, https://doi.org/10.1175/JCLI-D-17-0591.1, 2018. 
Ahlstrøm, A. P., Petersen, D., Langen P. L., Citterio, M., and Box, J. E.: Abrupt shift in the observed runoff from the southwestern Greenland ice sheet, Science Advances, 3, e1701169, https://doi.org/10.1126/sciadv.1701169, 2017. 
Ballinger, T. J., Hanna, E., Hall, R. J. Miller, J., Ribergaard, M. H., and Høyer, J. L.: Greenland coastal air temperatures linked to Baffin Bay and Greenland Sea ice conditions during autumn through regional blocking patterns, Clim. Dynam., 50, 83–100, https://doi.org/10.1007/s00382-017-3583-3, 2018a. 
Ballinger, T. J., Hanna, E., Hall, R. J., Miller, J., Ribergaard, M. H., Overland, J. E., and Høyer, J. L.: Anomalous blocking over Greenland preceded the 2013 extreme early melt of local sea ice, Ann. Glaciol., 59, 181-190, https://doi.org/10.1017/aog.2017.30, 2018b. 
Bamber, J. L., Westaway, R. M., Marzeion, B., and Wouters, B.: The land ice contribution to sea level during the satellite era, Environ. Res. Lett., 13, 063008, https://doi.org/10.1088/1748-9326/aac2f0, 2018. 
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Short summary
Arctic sea ice and the Greenland Ice Sheet (GrIS) are melting later in the year due to a warming climate. Through analyses of weather station, climate model, and reanalysis data, physical links are evaluated between Baffin Bay open water duration and western GrIS melt conditions. We show that sub-Arctic air mass movement across this portion of the GrIS strongly influences late summer and autumn melt, while near-surface, off-ice winds inhibit westerly atmospheric heat transfer from Baffin Bay.