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. 2021 Apr 20;12:2336. doi: 10.1038/s41467-021-22656-5

Fig. 1. Representative radargrams from southwest Greenland showing the 2012 melt layer.

Fig. 1

These data highlight the initial development and persistence of the 2012 melt layer in a April 2012, b April 2013, and c April 2017. The location of these radargrams is shown by the red line in the inset map in a. The color scale represents received radar power, with dark colors indicative of strong returns from areas of high density contrast within the firn.