Primary Convener:
Chao Zhang, Hunan University

Convener:
Benjamin Jones, University of Alaska Fairbanks
Xiaojing Fu, Caltech
Judith Schicks, GFZ Helmholtz Centre for Geosciences
Thomas Petersen, University of Southern California
Yi Dong, IRSM Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
Roger Creel, Texas A& M University
Yashar Mehmani, Pennsylvania State University Main Campus
Benzhong Zhao, McMaster University

Early Career Convener:
Michael Angelopoulos, Technical University of Munich

Chair:
Chao Zhang, Hunan University
Xiaojing Fu, Caltech
Roger Creel, Texas A& M University
Yashar Mehmani, Pennsylvania State University Main Campus

Understanding phase transitions and multiphase interactions in porous media is critical to predicting the evolution of Earth's subsurface systems in a range of environmental and energy applications. In the context of saline permafrost, gas hydrates, snow and glacier hydrology as well as subsurface gas storage, this session explores the fundamental role of water phase transitions in shaping the thermal, hydrological, mechanical, and biogeochemical dynamics of porous media from pore to landscape scale.
We welcome interdisciplinary contributions that investigate water across all phases (vapor, liquid, and ice) and the mechanisms governing phase transitions—including evaporation, condensation, freezing, thawing, and sublimation—in open/closed systems and under confined/unconfined conditions. By bridging laboratory and field observations with modeling efforts in pore and continuum scales, this session aims to foster integrative approaches that improve predictions in applications such as permafrost and glacier evolution as well as gas plume stability under Ostwald ripening.

Index Terms
0702 Permafrost
0708 Thermokarst
0714 Clathrate
0718 Tundra
1818 Evapotranspiration
1863 Snow and ice
1865 Soils
1875 Vadose zone

Cross-Listed:
PP - Paleoceanography and Paleoclimatology
C - Cryosphere
NS - Near Surface Geophysics
B - Biogeosciences

Neighborhoods:
3. Earth Covering