@article{TEXTUAL,
      recid = {13718},
      author = {Macdonald, Grant J. and Banwell, Alison F. and MacAyeal,  Douglas R.},
      title = {Seasonal evolution of supraglacial lakes on a floating ice  tongue, Petermann Glacier, Greenland},
      journal = {Annals of Glaciology},
      address = {2018-04-17},
      number = {TEXTUAL},
      abstract = {Supraglacial lakes are known to trigger Antarctic  ice-shelf instability and break-up. However, to date, no  study has focused on lakes on Greenland's floating termini.  Here, we apply lake boundary/area and depth algorithms to  Landsat 8 imagery to analyse the inter- and intraseasonal  evolution of supraglacial lakes across Petermann Glacier's  (81°N) floating tongue from 2014 to 2016, while also  comparing these lakes to those on the grounded ice. Lakes  start to fill in June and quickly peak in total number,  volume and area in late June/early July in response to  increases in air temperatures. However, through July and  August, total lake number, volume and area all decline,  despite sustained high temperatures. These observations may  be explained by the transportation of meltwater into the  ocean by a river, and by lake drainage events on the  floating tongue. Further, as mean lake depth remains  relatively constant during this time, we suggest that a  large proportion of the lakes that drain, do so completely,  likely by rapid hydrofracture. The mean areas of lakes on  the tongue are only ~20% of those on the grounded ice and  exhibit lower variability in maximum and mean depth,  differences likely attributable to the contrasting  formation processes of lakes in each environment.},
      url = {http://knowledge.uchicago.edu/record/13718},
}