Concept information
Preferred term
CALM
Definition
- The CALM (Circumpolar Active Layer Monitoring) program currently consists of 69 research sites operated by researchers from from Canada, China, Denmark/ Greenland, Kazakhstan, Mongolia, Norway, Poland/Svalbard, Russia, Sweden/Svalbard, Switzerland, and United States. Although the CALM program began as a voluntary effort in 1991, it has recently been formalized with a 5-year grant from the U.S. National Science Foundation (OPP-9732051). Investigators at these sites measure the seasonal thaw depth across plots using a standard protocol. Soil and air temperature, and soil moisture content, are also measured at many sites. If these areally averaged measurements are combined with site-specific information on soil, landscape, vegetation, and measurements of air and soil temperature, the stability and projected changes in regional thaw depth and the spatial patterns can be more realistically modeled and validated. For more information, link to "http://k2.gissa.uc.edu/~kenhinke/CALM/" (en)
Broader concept
- A - C (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/49512e9f-71c9-41ac-bd89-0de6d7308d24
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