Multi-decadal Glacial Lake Inventory in the Alaska Region between 1984 and 2019

• Main Authors: Brianna Rick, Daniel McGrath
• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2021
• Subjects: ice-marginal lakes; glacial lakes; lake; Alaska; proglacial lake; supraglacial lake; ice-dammed lake; Canada; Dammed Lake; Glacial Lake; glacier; glacier*
• Online Access: https://doi.org/10.18739/A2MK6591G

This dataset is an inventory of all lakes within 1 km (kilometer) of a glacier in Alaska and northwest Canada (Randolph Glacier Inventory (RGI) Region 01) for four different time periods: 1984-1988, 1997-2001, 2007-2011, and 2016-2019. Outlines were created from ~5-year Landsat composites made in Google Earth Engine. Lakes are identified using supervised classification, thresholding, and manual verification. For each lake, area, dam type, topological location, and associated RGI glacier ID (identification) are reported. This time-varying inventory was created to help understand historic changes in ice-marginal lakes in Alaska and the role of dam type and position in characterizing lake trends.