Thaw depth measurements from the Circumpolar Active Layer Monitoring (CALM) project for site 'Happy Valley' (U9 A), Alaska North Slope, United States (Alaska) from 1996-2018

• Main Author: Dmitry A Streletskiy
• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2019
• Subjects: EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER; IN SITU/LABORATORY INSTRUMENTS > PROBES > TEMPERATURE PROBES; IN SITU/LABORATORY INSTRUMENTS > PROBES > SNOW MEASURING ROD; IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL TEMPERATURE PROBE; IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL DEPTH PROBE; IN SITU/LABORATORY INSTRUMENTS > RECORDERS/LOGGERS > TEMPERATURE LOGGERS; IN SITU/LABORATORY INSTRUMENTS > TEMPERATURE/HUMIDITY SENSORS > THERMISTORS > THERMISTORS; IN SITU/LABORATORY INSTRUMENTS > PROBES > SOIL MOISTURE PROBE; IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES; IN SITU/LABORATORY INSTRUMENTS > TEMPERATURE/HUMIDITY SENSORS > TEMPERATURE SENSORS; POINT; 1 METER TO 30 METERS; 30 METERS TO 100 METERS; 100 METERS TO 250 METERS; 250 METERS TO 500 METERS; 500 METERS TO 1 KILOMETER; 1 KILOMETER; MONTHLY TO ANNUAL; FIELD SURVEY; TRANSECT; GRID; MULTIPLE; GRIDS AND VECTORS; environment; Antarctic; Arctic; Happy Valley; Active layer monitoring; Active layer thickness; Alaska North Slope; Antarc*; Climate change; north slope; permafrost; Subarctic; Tundra; Alaska
• Online Access: https://doi.org/10.18739/A2Q52FC8B

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 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. CALM currently has participants from 15 countries. Majority of sites measure active-layer thickness on grids ranging from 1 hecatre to 1 square kilometer, and observe soil temperatures. 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. The broader impacts of this project are derived from the hypothesis that widespread, systematic changes in the thickness of the active layer could have profound effects on the flux of greenhouse gases, on the human infrastructure in cold regions, and on landscape processes. It is therefore critical that observational and analytical procedures continue over decadal periods to assess trends and detect cumulative, long-term changes. The CALM program began in 1991. It was initially affiliated with the International Tundra Experiment and has been supported independently and continuously since 1998 through grants from the United States National Science Foundation (NSF). CALM is funded by the NSF Award 1304555 (Polar Programs). This dataset and metadata record was automatically generated from a web crawl of the original project page https://www2.gwu.edu/~calm/data/north.htm at the request of project coordinators. More information about this site and others in the project can be found at https://www2.gwu.edu/~calm/data/north.htm and also http://gtnpdatabase.org/activelayers .