Downscaled MERRA-2 snow depth (in meters) data. Images show snow depth for two time periods: spring snow melt for 23-30 April, 2007 (left) and during early snow accumulation for 30 September-7 October, 2007 (right).
One kilometer resolution, cloud-free snow cover extent and snow depth data are available for Alaska from 2001 to 2017.
The custom-built chamber for measuring in situ trace gas fluxes from soil/vegetation and water surfaces. The chamber (~ 0.5 m3) provides adequate height to enclose emergent grasses and reeds.
A new dataset provides diffusive methane (CH4) fluxes of emergent and upland vegetation at two thermokarst lakes in Alaska.
Vegetation point-intercept (VPI) any-hit cover metric data were combined with Landsat imagery to develop fractional maps of any-hit cover for four aggregated plant functional types (PFTs); shrubs bryophytes, lichen, and herbs for the upland tundra area of the Y-K Delta, Alaska. VPI data were collected from plots in areas burned in 1971, 1985, 2005, and 2015.
Ecological field data and maps of vegetation cover spanning gradients of fire history in upland tundra are available from the Arctic-Boreal Vulnerability Experiment (ABoVE).
Example of color-infrared imagery shown alongside the corresponding semi-automated open water classification at Old Crow Flats, Alaska.
Over 3,000 km2 of open surface water were mapped from AirSWOT flight lines made in Summer 2017 for the Arctic-Boreal Vulnerability Experiment (ABoVE).
A typical burned plot in the Saskatchewan, Canada, boreal forest study area.
Fire history and field measurements were used to estimate above- and belowground carbon values.
(A) A Soil Respiration Station (SRS), (B) a SRS data logger, and (C) a Forced Diffusion Chamber (FD chamber) deployed at a boreal forest site in central Alaska.
Data collected by soil respiration stations installed at boreal and tundra sites are available from the Arctic-Boreal Vulnerability Experiment (ABoVE).
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.
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.
Peak greenness derived from the Normalized Difference Vegetation Index (NDVI) for the year 2010 in the ABoVE grid cell Bh07v07.
Maps of annual seasonality and greenness are now available from the Arctic-Boreal Vulnerability Experiment.
Summary statistics for the snowoff date from 1988-2016 across the study domain: mean (left), standard deviation (middle), and coefficient of variation (right).
Snowoff dates, detected by passive microwave, are available across Alaska, northwestern Canada, and the Russian Far East.
