Seasonal evolution of supraglacial lakes and rivers on the southwest Greenland Ice Sheet
نویسندگان
چکیده
Abstract Supraglacial lakes and rivers dominate the storage transport of meltwater on southwest Greenland Ice Sheet (GrIS) surface. Despite functioning as interconnected hydrologic networks, supraglacial are commonly studied independent features, resulting in an incomplete understanding their collective impact routing. We use Landsat 8 satellite imagery to assess seasonal evolution GrIS during 2015 melt season. Remotely sensed areas volumes compared with surface runoff simulations from three climate models (MERRA-2, MAR 3.6 RACMO 2.3), situ observations proglacial discharge Watson River. find: (1) at elevations >1600 m, 21% 28% drain into moulins, signifying presence high-elevation surface-to-bed connections even a colder-than-average season; (2) while instantaneous storage, total area discharge; (3) combined is strongly correlated modeled runoff; (4) examined here, MERRA-2 yields highest overall correlation observed
منابع مشابه
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 2021
ISSN: ['0022-1430', '1727-5652']
DOI: https://doi.org/10.1017/jog.2021.10