Model-simulated 1 km mean active layer thickness (ALT) map from 2001 to 2015. Black dots are locations of circumpolar active layer monitoring (CALM) sites used for comparison of observed ALT to modeled ALT. CALM data are not provided. The areas with ALT greater than 300 cm depth are shown in dark gray.
MODIS and SMAP satellite data were used to derive estimates of active layer thickness and uncertainty.
Study area included sites burned in 2014 and 2015 in the southeastern portion of the Northwest Territories and northern Alberta of Canada. The study area includes all 2014 and 2015 fires within a radius of approximately 300 km from Great Slave Lake.
Pre- and post-fire Landsat images were used to classify burn severity of soil organic matter across portions of arctic Canada.
Examples of fractional cover distribution in a tundra region near Lake Narvakrak in the Noatak River National Preserve: (a) very high-resolution imagery from Google Earth; (b) fractional cover of woody component; (b) fractional cover of herbaceous component; (d) fractional cover of nonvascular component.
Maps of three major wildland fire fuel types are available from the Arctic-Boreal Vulnerability Experiment.
Arctic-CAP flights consisted of vertical profile maneuvers from near the surface to 6 km altitude around the ABoVE domain each month. Profiles were flown at each of the 25 locations listed across the top of this figure.
Atmospheric gas concentrations collected during the Arctic Carbon Aircraft Profile (Arctic-CAP) campaigns are now available.
Daily mean shortwave blue sky albedo for February 28, 2000. Blue sky refers to albedo calculated under real-world conditions with a combination of both diffuse and direct lighting based on atmospheric and view-geometry conditions.
Daily “blue sky” shortwave albedo data were derived from the MODIS bi-directional reflectance distribution function.