Monthly mean CH4 flux estimates for Alaska. Values are centered on the mean measurement date for a given month and the shaded regions are the standard error of the mean (figure from Hartery et al. 2018).
A new dataset from NASA's Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) provides gridded methane flux estimates from 2012-2014.
Location of Toolik Lake study area in northern Alaska. Detail view shows three LiDAR collection footprints in pale green. Red crosses indicate locations of shrub harvest areas within the Toolik LiDAR footprint (figure from Greaves et al., 2016).
LiDAR and orthophotography were used to estimate aboveground shrub biomass near Toolik Lake, AK.
The best estimate (50th percentile) of 30-m shrub dominance (shrub/plant AGB) for non-water portions of the Beaufort Coastal Plain and Brooks Foothills ecoregions of the North Slope of Alaska.
Estimates of aboveground biomass for the North Slope of Alaska are provided in a new dataset.
Vegetation, soil, and environmental data were collected from over 3400 plot locations in the ABoVE study area.
Vegetation species and other environmental and soil parameters are available from over 3400 plot locations within the NASA ABoVE study domain.
The ABoVE study domain showing cumulative annual burned areas derived from AVHRR for 1989 - 2000.
A long-term record of annual forest fire burned area and daily hotspots are provided in a new ABoVE dataset.
Dr. Laura Bourgeau-Chavez using a handheld water content reflectometer to measure soil moisture at a field site in Delta Junction, Alaska. Image courtesy of Dr. Bourgeau-Chavez.
Dr. Laura Bourgeau-Chavez uses NASA Earthdata for studying wetlands and wildfire.
Date of Burning (DoB) was estimated for areas within each fire scar across Alaska and Canada. In this figure, red areas are fire scar locations across central Canada in 2015.
New data from NASA's ABoVE project provide maps of the date of burning within fire scars across Alaska and Canada from 2001-2015.
The ABoVE Study Domain with Core and Extended study regions and the Standard Reference Grid showing the nested 240 and 30 meter tiling scheme.
An updated version of the standard reference grid for NASA's ABoVE campaign has been released.
Date of last spring snow cover for portions of Alaska and the Yukon Territory in 2000. Data spatial extent is based on the MODIS sinusoidal projection.
Data from NASA's ABoVE campaign tracks the last day of spring snow cover for parts of Alaska and the Yukon Territory annually from 2000 through 2016.
Land cover types and topography at the flux tower field sites at Barrow, Atqasuk, and Ivotuk, Alaska
Historical data from the ABoVE project characterize vegetation within five flux tower footprints in Alaska.