ORNL DAAC News

Ecosystem Functional Types Across the USA

Submitted by ORNL DAAC Staff on 2019-03-13

Ecosystem functional type (EFT) categories

Spatial distribution of 64 ecosystem functional type (EFT) categories across the conterminous United States (CONUS). For each pixel, the dominant EFT is reported.

New data from the Carbon Monitoring System classifies ecosystems based on their similar ecosystem functioning.

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Soil Organic Carbon across Latin America

Submitted by ORNL DAAC Staff on 2019-03-12

Country-specific (a) and regional (b) predictions of SOC across Latin America based on a linear ensemble of methods.

A new dataset offers baseline estimates of soil organic carbon for Latin American countries.

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California Fossil Fuel CO2 Emissions

Submitted by ORNL DAAC Staff on 2019-03-12

Total CO2 concentrations and fossil fuel CO2 concentrations

Seasonal quartiles of total CO2 concentrations and fossil fuel CO2 concentrations for each of the nine observation sites in California, 2014-2015.

A new dataset provides estimates of CO2 emissions from fossil fuels across California in 2014-2015.

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Soil Carbon Stocks for Tidal Wetlands

Submitted by ORNL DAAC Staff on 2019-03-08

soil carbon in the Mississippi River delta

Estimated soil carbon stocks (using model results) throughout the Mississippi River delta in Louisiana. Cooler colors (blues and greens) indicate higher soil carbon concentrations.

Researchers with NASA's Carbon Monitoring System estimated the amount of carbon stored in the soil in tidal wetlands of the United States.

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Field Measurements After Alaskan Wildfires

Submitted by ORNL DAAC Staff on 2019-03-04

Photos from July 2017 field surveys near Tanana, Alaska, from left to right: unburned forest site; burned forest near the Spicer Creek Fire; high burn severity forest site.

Researchers with NASA's ABoVE field campaign measured burn severity in spruce forests that burned in 2015 near Tanana, Alaska.

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ABoVE Data Measure Arctic Greening

Submitted by ORNL DAAC Staff on 2019-03-04

MODIS (left) and CCaN (right) average growing season NDVI.

A new study of long-term NDVI trends across the North Slope of Alaska presents high-resolution growing-season NDVI from MODIS.

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Soil Carbon Stocks for Tidal Wetlands

Submitted by ORNL DAAC Staff on 2019-03-04

Three carbon stock estimation approaches for the Louisiana Delta region

Results of three carbon stock estimation approaches for the Louisiana Delta region: Left, using independently generated soil carbon maps from SSURGO; Middle, using the SSURGO bias-corrected for bulk density; Right, using single average carbon stock value from the compiled soil core data.

Soil carbon stocks for tidal wetland areas of the United States were estimated using four modeling approaches.

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Upcoming Earthdata Webinar

Submitted by ORNL DAAC Staff on 2019-03-03

Forest disturbance by fire and insect infestation

The webinar will feature data on the locations of forest disturbance by fire (red) and insect infestation (yellow) across northwestern USA between 2006 and 2010.

Don't miss our webinar on "Introduction to Geospatial Analysis in R" on March 13 at 2:00 PM ET.

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Atmospheric Profiles of Hydroxyl and Formaldehyde

Submitted by ORNL DAAC Staff on 2019-02-25

Circles mark the locations of the 139 selected profiles sampling the remote troposphere. Circle color indicates HCHO column densities integrated over each ATom profile. Data are overlain on global gridded OMI HCHO column densities averaged over the mission. From Wolfe et al. (2019) (see dataset references).

New data from NASA's Atmospheric Tomography Mission (ATom) provide hydroxyl and formaldehyde column density in the remote troposphere.

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