Presentation1_Numerical Assessments of Excess Ice Impacts on Permafrost and Greenhouse Gases in a Siberian Tundra Site Under a Warming Climate.pdf

• Main Authors: Hotaek Park (11464954), Alexander N. Fedorov (11258418), Pavel Konstantinov (9102133), Tetsuya Hiyama (557254)
• Format: Conference Object
• Language: unknown
• Published: 2021
• Subjects: Solid Earth Sciences; Climate Science; Atmospheric Sciences not elsewhere classified; Exploration Geochemistry; Inorganic Geochemistry; Isotope Geochemistry; Organic Geochemistry; Geochemistry not elsewhere classified; Igneous and Metamorphic Petrology; Ore Deposit Petrology; Palaeontology (incl. Palynology); Structural Geology; Tectonics; Volcanology; Geology not elsewhere classified; Seismology and Seismic Exploration; Glaciology; Hydrogeology; Natural Hazards; Quaternary Environments; Earth Sciences not elsewhere classified; Evolutionary Impacts of Climate Change; land surface model; subsurface flow; subsidence; permafrost excess ice; carbon and methane fluxes; Talik; Active layer thickness; Ice; permafrost; Tundra; wedge*; Siberia
• Online Access: https://doi.org/10.3389/feart.2021.704447.s001

Excess ice that exists in forms such as ice lenses and wedges in permafrost soils is vulnerable to climate warming. Here, we incorporated a simple representation of excess ice in a coupled hydrological and biogeochemical model (CHANGE) to assess how excess ice affects permafrost thaw and associated...