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Moose Hunting Season Environmental Conditions in Alaska

Map of study area communities.

Map of study area communities. GMUs are Game Management Units and GMU21D is highlighted.

Environmental conditions during moose hunting season for 2000-2016 are available for rural Alaska.

Alaskan Fire Fuel Components

Four maps showing fractional cover distribution.

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.

MODIS-Derived Snowmelt Timing Maps, Version 2

Map of snowmelt date.

Mean snowmelt Day of Year (DOY) for the years 2001-2018 for North America. The DOY values for snowmelt timing were identified by observing the transition from snow-cover to no-snow for individual MODIS pixels throughout the annual melt period.

The second version of snowmelt timing maps for North America is available for the period 2001 through 2018.

Arctic Whole Air Samples

Graph showing vertical profile maneuvers.

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.

Thank You, User Working Group Members!

Picture of the words, "thank you."

The UWG meets once per year to review the status of ORNL DAAC operations and to provide recommendations.

Joe Sexton, Michael Dietze, Nancy Glenn, and Lucy Hutyra will be rotating off the User Working Group this year.

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.

Reactive Gas and Whole Air Samples from ATom

Map of methyl bromide data collection.

Dry-air mole fraction of methyl bromide measured in Programmable Flask Package samples taken during Atom-2 flights in January-February 2017.

Two new instrument datasets available from the Atmospheric Tomography Mission (ATom).

GEDI Data Released at LP DAAC, More Data to Come

Logo for NASA’s Global Ecosystem Dynamics Investigation

GEDI data will help further refine our understanding of the carbon cycle and atmospheric concentrations of carbon dioxide (CO2).

Level 1 and 2 high-resolution, laser altimetry data from the Global Ecosystem Dynamics Investigation (GEDI) are now available from the LP DAAC.

Historical and Future Leaching from the Mississippi River Basin

Distribution map of mean dissolved inorganic carbon leaching.

Spatial distribution of mean dissolved inorganic carbon (DIC) leaching (g c/m2/yr) in the 2090s estimated by S(ALL) simulation experiment (including future climate, elevated CO2, and land use changes). Climate change scenarios were derived from three climate models named CCSM3 (panels a and b), ECHAM (c and d), and CCCMA (e and f) under high (A2) and low (B1) emission scenarios, respectively.

New data from the Carbon Monitoring System (CMS) offers insights into how environmental factors affect the dynamics of leaching.

Seasonality and Peak Greenness in the Arctic

Map of peak greenness.

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.

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