ICSIH, Snow and Ice Hydrology

The goal of the International Commission for Snow and Ice Hydrology (ICSIH) is to promote the scientific study of the processes of snow and ice dynamics and the influence of snow and ice on the environment, runoff generation, rivers, and lakes, with an emphasis on the seasons and regions where the solid phase of water and meltwater runoff are important components of the hydrological cycle.


ICSIH in its present form is the newest IAHS commission. ICSIH was approved to begin its functions with a provisional bureau at the IAHS Bureau meeting in Foz do Iguaçu, Brazil in April 2005. ICSIH was voted into existence by the IAHS General Assembly at the IUGG in Perugia, Italy, in July 2007, when the former International Commission on Snow and Ice (ICSI) became the International Association of Cryospheric Sciences (IACS).

ICSIH has actively worked towards its mission goals by publishing several special issues and Red Books and by participating in the organization of conferences/workshops and sessions at all IAHS and IUGG symposia. ICSIH also has a special role with IAHS by fostering fruitful connections with IACS.

Snow and ice have been studied as core components of hydrology since its inception and their dynamics are important components of the hydrological cycle throughout much of the world. Water stored as snow and ice is a critical contributor to the world’s available freshwater supply and is essential to the sustenance of natural ecosystems, agriculture, and human societies.

The formation, vaporization, and melting of snow, ice, and soil frost hold an inordinately important role in the runoff, soil moisture replenishment, and streamflow generation in cold regions. River flow from these source regions is critical to sustaining coupled human-natural systems in more temperate and often more arid downstream areas. River and lake ice affect water flow and may result in catastrophic flooding. Due to global warming, the cryosphere is rapidly changing. Changing climate has resulted in altered patterns of snowfall and snowmelt, conversion of snowfall to rainfall, loss of glaciated area, and thawing of permafrost.

John Pomeroy, ICSIH 1st President

ICSIH serves the scientific community by promoting communication and collaboration amongst scientists dealing with snow and ice hydrology. We organize dedicated sessions at international conferences and workshops on a regular basis. Past and upcoming meetings are listed here.

We also support students, practitioners, and scientists who deal infrequently with snow and ice hydrology. To provide them with up-to-date concepts, methods, and tools we are compiling and developing useful resources. Check out our new article section here. Please contact us if you have suggestions for specific topics or would like to provide feedback on existing resources.

In our download section, you can access publications that have resulted from ICSIH activities associated with scientific meetings and workshops. These include conference proceedings, special issues, and red books. Other interesting resources can be found via our list of links.

ICSIH Officers


Tobias Jonas
Snow Hydrology Research Group, WSL Institute for Snow and Avalanche Research SLF, Flüelastr. 11, CH-7260 Davos Dorf, Switzerland
Tel: +41 81 417 0259



Melody Sandells

Geography and Environmental Sciences, Northumbria University, 
Newcastle upon Tyne, NE1 8ST
Tel: +44 191 227 4565


Timothy E. Link
Professor of Hydrology, University of Idaho, College of Natural Resources, 875 Perimeter Drive MS 1133, Moscow, ID 83844-1133 USA
Tel: +1 (208) 885-9465


James McPhee, Civil Eng., PhD.
Department of Civil Engineering
Faculty of Physical and Mathematical Sciences
Universidad de Chile
Av. Beauchef 850, Santiago -  Chile
Tel.: +56-2-29784400


S. McKenzie Skiles
Assistant Professor, Department of Geography
University of Utah
260 Central Campus Dr, Rm 4625
Salt Lake City, UT 84017
+1 801 808 2337



Vsevolod Moreydo,
Institute of Water Problems
Russian Academy of Sciences
Tel.: +7(499) 783-37-56 # 242



Anna-Marie Jorss




ICSIH Bureau Officers 2019 - 2022
ICSIH Bureau officers for 2019 – 2022, IUGG General Assembly, Montreal, Canada, July 2019

Top left to right: Melody Sandells (PE), Tobias Jonas (P), Timothy Link (VP)

Bottom left to right: Vsevolod Moreydo (S), McKenzie Skiles (VP), James McPhee (VP)

Check out ICSIH Annual Reports in the following section