Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > Resources >

You are here

News

News

Arctic

Open Water Pixel Masks from ABoVE Flight Paths

AirSWOT Imagery

Example of color-infrared imagery shown alongside the corresponding semi-automated open water classification at Old Crow Flats, Alaska.

AirSWOT imagery from the 2017 Arctic-Boreal Vulnerability Experiment (ABoVE) was used to create water masks across parts of Canada and Alaska.

Boreal Forest Burned and Unburned Site Comparisons

Image of a burned field site.

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.

Boreal & Tundra Soil Respiration Data

Images of field instruments.

(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).

Burn Severity Index of Canadian Ecoregions

Map of study area.

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.

High Latitude Blue Sky Albedo

Map showing data distribution.

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.

Pages