Pan-Arctic thermokarst lagoon distribution, area and classification ...

• Main Authors: Jenrich, Maren, Prodinger, Maria, Nitze, Ingmar, Grosse, Guido, Strauss, Jens
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: Classification; connectivity; lagoon size; Permafrost coasts; shapefile; Thermokarst Lagoon; File content; Binary Object; Binary Object File Size; Comment; Satellite imagery; Carbon in Permafrost / Kohlenstoff im Permafrost KoPF; Changing Arctic Carbon cycle in the cOastal Ocean Near-shore CACOON; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool PETA-CARB; Ice; permafrost; Taymyr; Taymyr Peninsula; Thermokarst
• Online Access: https://dx.doi.org/10.1594/pangaea.968886; https://doi.pangaea.de/10.1594/PANGAEA.968886

Thermokarst lagoons develop in permafrost lowlands along the ice-rich Arctic coast when thermokarst lakes or basins with bottom elevations at or below sea level are breached by the sea due to erosion, sea-level rise, or connection via drainage channels. Thermokarst lagoons, as dynamic landforms at the interface of terrestrial permafrost and marine systems, play a crucial role in the transformation of permafrost carbon under rising marine influence. Here we present a comprehensive dataset consisting of the first manual thermokarst lagoon area mapping, a more precise number of thermokarst lagoons and a detailed lagoon classification for thermokarst lagoons along the pan-Arctic coast from Taymyr Peninsula in Russia to the Tuktoyaktuk Peninsula in Canada. This is an updated dataset based on the previous work of Jenrich et al. 2021 and Jenrich et al. 2023. The main improvements include (1) counting thermokarst lagoons individually within a lagoon system, as long as the distinct round form of former lake basins is ...