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Global Terrestrial Observing Network (GT-NET)
Data Access
Global Terrestrial Observing Network (GT-NET) is a system of observation networks: Glacier (GTN-G), Hydrology (GTN-H), Lake Level/Area (GTN-L), Mountain (GTN-M), and Permafrost (GTN-P) and River Discharge (GTN-R). Each represents an organized effort for a particular theme, habitat type or region. The formation of GT-Net has been pursued by the Terrestrial Observation Panel for Climate (TOPC) on behalf of the Global Terrestrial Observing System (GTOS) and the Global Climate Observing System (GCOS). Regional networks are being developed through GTOS regional programs.
GTN-NET Program Overview
Update June 25, 2009 |
Mountains Network (GTN-M)
- GTOS GTN-M endorses three main mountain-related activities devoted primarily to monitoring and change detection:
- the Global Observation Research Initiative in Alpine Environments Project (GLORIA),
- the Mountain Research Initiative (MRI), and
- the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL)
- Data Access
- Program Overview
Permafrost Network (GTN-P)
- The Global Terrestrial Network for Permafrost (GTN-P), approved in 1999 and coordinated by the International Permafrost Association (IPA), comprises two international monitoring networks: Thermal State of Permafrost (TSP) and Circumpolar Active Layer Monitoring (CALM).
Glacier Network (GTN-G)
- The GTN-G was created in 1998. The World Glacier Monitoring Service (WGMS) operates this network.
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Hydrology Network (GTN-H)
- The GTN-H is a joint project of GCOS, the WMO Hydrology and Water Resources Programme (HWRP) and GTOS.
Lake Level/Area Network (GTN-L)
- GTN-L is part of the GTN-H Network.
HYDROLARE is the International Data Center on the Hydrology of Lakes and Reservoirs and is in development.
River Discharge (GTN-R)
- The GTN-R is a recently launched project of the Global Runoff Data Centre (GRDC), aiming at improving access to near real-time river discharge data for selected gauging stations around the world, capturing the majority of the freshwater flux into oceans. GTN-R will draw together the already available heterogeneous information on near-real-time river discharge data provided by individual national hydrological services, and redistribute the data in a harmonized way.
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