Permafrost Polygon Field, Herschel Island, Yukon, Canada. Credits: Saskia Eppinger, TUM (2022).
The Global Terrestrial Network for Permafrost (GTN‑P)
GTN-P – Home for the scientific permafrost community and its data.
The Global Terrestrial Network for Permafrost (GTN-P) is the leading international programme for long-term permafrost monitoring. Its mission is to sustain a comprehensive global network that delivers consistent, high-quality, long-term observations of key permafrost indicators (Permafrost Essential Climate Variable quantities). These data support the assessment of the current state of permafrost and its changes over time.
Map of the GTN-P Permafrost Monitoring Network.
Call for new Young National Correspondents
Each member country of GTN-P is not only represented by a National Correspondent (NC), but also by a Young National Correspondent (YNC). The role of the YNC is to support their country's NC but also to grow into the network. They help collect and upload their countries' data and YNCs are invited to join the yearly GTN-P General Assembly.
Currently the roles of YNC for these countries is vacant:
Austria, Denmark, France, Italy, Japan, Mongolia, Netherlands, New Zealand, Norway & Svalbard, Romania, South Korea, Spain, Sweden, United Kingdom, and USA.
If you are interested in getting more information on the position or becoming your country's YNC, please contact the GTN-P International Office!
GTN-P Data Platform
The GTN-P Data Platform is the central access point for data on Permafrost Temperature (PT) and Active Layer Thickness (ALT).
Explore, view, and download permafrost data:
Permafrost ECV
Essential Climate Variables (ECVs) provide the observational basis for understanding climate change. Permafrost is a key land-cryosphere ECV, defined by GCOS, with core measurements capturing changes in frozen ground that affect climate, ecosystems, and infrastructure. [read more ...]
GTN-P community
The GTN-P governance structure ensures a professional and efficient coordination of the network’s activities. The structure includes a Steering Committee, an Advisory Board, an Office, as well as National and Young National Correspondents. [read more ...]
International Stewardship
GTN-P operates under international stewardship, rooted in the global permafrost community. Its governance and coordination ensure trusted, high-quality observations that underpin climate research, assessments, and international reporting. [read more ...]
GTN-P in numbers
1487
Permafrost Temperature sites
256
Active Layer Thickness sites
20072082
Data points
33
Countries involved
104
Organizations involved
27
Years since foundation
Launch of the new GTN-P Data Platform and the new GTN-P Website
2026-01-19 – The new GTN-P Data Platform and the new GTN-P Website have been launched to provide improved access to permafrost data and information. Both aim to support researchers, policymakers, and the public in understanding permafrost dynamics and their implications for the global climate system and were launched on Monday, 19 January 2026. [read more ...]
Announcements
GTN-P at the DACH Permafrost conference 2026
Don’t miss the GTN-P workshop focussing at the upcomimg DACH conference on the new GTN-P data platform (Wednesday, 21 January 2026 - 13:00-15:30) as well as the GTN-P Key note talk (Friday, 24 Jan 2026). [read more ...]
GTN-P at Arctic Frontiers 2026
The new GTN-P Data Platform will be presented at the 2026 Arctic Frontiers Conference “Turn on the Tide” on Monday, 2 February 2026 (09:35) in a session on monitoring, modeling, and mitigating the consequences of Arctic permafrost change. [read more ...]
GTN-P at the ACOP Permafrost conference 2026
Don’t miss the GTN-P workshop focussing on the importance of Asian Permafrost, the GTN-P session “GTN-P: Local Observations to Global Assessments” as well as a GTN-P poster presentation. [read more ...]
News from the network
ArcticNet Annual Scientific Meeting (ASM) 2025, Calgary, Canada
2025-12-22 – In Canada, the ArcticNet Annual Scientific Meeting (ASM) is a key event for the Arctic research community, bringing together scientists, policymakers, and Indigenous Peoples from across the North. The meeting provides an important platform for intercultural exchange, united by a shared commitment to understanding and sustaining northern environments. [read more ...]
GTN-P General Assembly 2025, online
2025-12-01 – On 20 November 2025, the GTN-P Office hosted its annual virtual General Assembly, bringing together GTN-P Young National Representatives, National Representatives, the Advisory Board, and the Steering Committee. The meeting was attended by more than 40 participants from 15 countries and was very well received. [read more ...]