United States Permafrost Association

Dmitry Streletskiy
President Elect
John Zarling
Past President
Thomas Douglas
Susan Wilson
Gerald Frost
Board Members
Cathy Wilson
John Thornley
IPA Representative
Fritz Nelson
Thomas Krzewinski
PYRN Representative:
Matthew Whitley

US Permafrost Association
PO Box 750141
Fairbanks, AK
Ph: 302-831-0852
Fax 302-831-6654

Frozen Ground
Frozen Ground 2018

Welcome to the US Permafrost Association. Please feel free to read about our association and permafrost information. We encourage participation in our activities, please consider joining our organization. Do you know how we serve the public? If not please review our mission section. We welcome support from individual members, corporations, and institutions.

Educational Permafrost Photo Gallery

For more information on this photo series, click the photo below. All images are copyright their respective authors.

Access past ICOP proceedings, click below.

» Book Publication: Geocryology: Characteristics and Use of Frozen Ground and Permafrost Landforms

GeocryologyDescription: This book provides a general survey of Geocryology, which is the study of frozen ground called permafrost. Frozen ground is the product of cold climates as well as a variety of environmental factors. Its major characteristic is the accumulation of large quantities of ice which may exceed 90% by volume. Soil water changing to ice results in ground heaving, while thawing of this ice produces ground subsidence often accompanied by soil flowage. Permafrost is very susceptible to changes in weather and climate as well as to changes in the microenvironment. Cold weather produces contraction of the ground, resulting in cracking of the soil as well as breakup of concrete, rock, etc. Thus permafrost regions have unique landforms and processes not found in warmer lands.

The book is divided into three parts. Part 1 provides an introduction to the characteristics of permafrost. Four chapters deal with its definition and characteristics, the unique processes operating there, the factors affecting it, and its general distribution. Part 2 consists of seven chapters describing the characteristic landforms unique to these areas and the processes involved in their formation. Part 3 discusses the special problems encountered by engineers in construction projects including settlements, roads and railways, the oil and gas industry, mining, and the agricultural and forest industries.

» Book Publication: The Periglacial Environment, 4th Edition

The Periglacial EnvironmentDescription: The Periglacial Environment, Fourth Edition, is an authoritative overview of the world’s cold, non-glacial environments. First published in 1976 and subsequently revised in 1996 and 2007, the text has been the international standard for nearly 40 years.

The Fourth Edition continues to be a personal interpretation of the frost-induced conditions, geomorphic processes and landforms that characterize periglacial environments. Part One discusses the periglacial concept and describes the typical climates and ecosystems that are involved. Part Two describes the geocryology (permafrost science) associated with frozen ground. Part Three outlines the weathering and geomorphic processes associated with cold-climate conditions. Part Four provides insight into the periglacial environments of the Quaternary, especially the Late Pleistocene. Part Five describes some of the problems associated with human occupancy in regions that experience frozen ground and cold-climate conditions.

What's News?

» June 13-14, 2019 Spring Polar Research Board Meeting
Two project development presentations focus on permafrost science:

  • Katey Walter Anthony, University of Alaska Fairbanks [PRB member]: permafrost thaw research: some recent findings and implications for global climate.
  • Dmitry Streletskiy, George Washington University: permafrost thaw impacts on infrastructure and sustainability of communities across the Arctic.

» CNN Reports on Siberian Permafrost
40,000-year-old severed wolf's head discovered in Siberian permafrost, June 11, 2019

  • See also: CNN Report - Russian researchers have found liquid blood and urine inside the frozen carcass of a foal that died 42,000 years ago in Siberia's Verkhoyansk region. Mammoth tusk hunters discovered the ancient foal embedded in the permafrost of the massive Batagaika crater during the summer of 2018.

» Hugh M. French Memoriam
The US permafrost community regretfully conveys the news about our Canadian colleague and long standing member of the U.S.Permafrost Association who suddenly passed away on May 11, 2019

» PMA Program
AGU and EGU Permafrost Abstracts Available - 269 permafrost related abstracts from the 2018 AGU Fall Meeting (Special Alert) and 56 abstracts from the 2019 EGU General Assembly (April Alert) are available on the Permafrost Monthly Alert
Thanks to our sponsors and the American Geosciences Institute for keeping us current on the latest permafrost-related research.

» Frozen Ground 42
The IPA's 2018 news bulletin is now available

» USPA 2018 Annual Report

» Winners of 2018 Travel Grants to EUCOP and AGU

» USPA 2018 Country Report

Upcoming Meetings