Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > About Us >

You are here

News

News

hotnews

Spring Snowmelt Across Alaska

Date of last spring snow cover in 2000

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.

Updated Global Fire Emissions Database

Annual burned area

Annual burned area (as percentage of the area of the grid cell), averaged over 1997-2014

A new version of the GFED data provides global fire and emissions data from 1997 to 2016.

Emissions from fossil fuels

Map of Automatic Traffic Recorder (ATR) station locations

Map of Automatic Traffic Recorder (ATR) station locations used to temporally downscale DARTE annual FFCO2 emissions from the on-road sector to hourly ACES emissions. Background color shows annual total emissions in ACES for the on-road sector in 2011 (Figure S5, Gately and Hutyra, 2017).

Data from NASA's Carbon Monitoring System provides estimates of CO2 emissions from the combustion of fossil fuels for the Northeastern United States.

Tags: 

Vegetation at Alaskan flux towers

Land cover types and topography at the flux tower field sites

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.

Global Foliage Clumping Index

Global map of MODIS-derived clumping index in 2006

Global map of MODIS-derived clumping index in 2006 (from He et al. 2012). Clumping index values range from 0 to 1 (maximum clumping to minimum clumping) representing the degree of foliage grouping within distinct canopy structures, such as tree crowns, shrubs, and row crops, relative to a random distribution.

A new dataset provides a high-resolution global clumping index derived from MODIS.

Pages