CALM - Circumpolar Active Layer Monitoring

Program Description: The primary goal of the Circumpolar Active Layer Monitoring (CALM) program is to observe the response of the active layer and near-surface permafrost to climate change over long (multi-decadal) time scales. The active layer is a layer of earth materials between the ground surface and permafrost that freezes and thaws on an annual basisThe CALM observational network, established in the 1990s, observes the long-term response of the active layer and near-surface permafrost to changes and variations in climate at more than 200 sites in both hemispheres. Most sites in the CALM network are located in Arctic and Subarctic lowlands. Southern Hemisphere component (CALM-South) is being organized and currently includes sites in Antarctic and South America.

Year Started: 1991.

Organization Description: CALM currently consists of more than 125 field installations operated by researchers from Canada, China, Denmark/Greenland, Italy, Kazakhstan, Mongolia, New Zealand, Norway, Poland/Svalbard, Russia, Sweden/Svalbard, Switzerland, and the United States.

Data Description: The web site contains archived data sets, a table of summary statistics, a map of the sites, measurement protocols, CALM forms, equipment installation instructions, uploading and downloading instructions, and other pertinent information. CALM investigators measure the seasonal depth of thaw at plots of various dimensions using a standard protocol. Soil and air temperature, soil moisture content, and vertical movement are also measured at many sites. These measurements, combined with site-specific information about soils, landscape, and vegetation, can be used to “scale up” assessments of the stability and projected changes to regional and circumpolar scales

Project Type: Sensor Network Repository

Project Domains: Geosciences

No budget information

Federal Funding: NSF

Program Data

Location Lat/Lon Coordinates Location Type Data Type Data Generation Single Data Instance Size (TB) Estimated Daily Data Size (GB) Estimated Annual Data Size (PB) Average Sustained Throughput (Gbps) Maximum Sustained Throughput (Gbps) Online Repository Size (PB) Total Repository Size (PB) Delay Tolerance (minutes) Jitter Sensitive? Uses the Cloud?
George Washington University, United States 38.8997,-77.0486 Data Repository Data On demand - No