ORNL DAAC News

CO2 Concentrations in the Boston Area

Submitted by ORNL DAAC Staff on 2018-10-04

Map of measurement stations in the Boston network and 2014 average afternoon CO2 emissions.

Measurement stations in the Boston area including two urban sites: Boston University (BU) and Copley Square (COP), and three boundary sites: Harvard Forest (HF), Canaan (CA), and Martha's Vineyard (MVY). Blue shading represents 2014 average afternoon CO2 emissions. See the dataset user guide for more details.

A new dataset from the North American Carbon Program provides atmospheric measurements of CO2 and model estimates of urban emissions at sites near Boston, Massachusetts, USA.

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Explore the ABoVE Airborne Campaign from Land

Submitted by ORNL DAAC Staff on 2018-09-28

A lake in Fairbanks, Alaska, where scientists planned the ABoVE campaign.

Scientists with the ABoVE campaign study the impacts of warming temperatures on northern lakes, like this one in Fairbanks, Alaska. (Image credit: NASA/Kate Ramsayer)

Field site locations that correspond to the flight tracks of the 2017 ABoVE Airborne Campaign have been published.

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Two New Datasets from ATom

Submitted by ORNL DAAC Staff on 2018-09-28

Image of ATom-1 deployment flight tracks and black carbon mass-mixing ratio.

Flight tracks of the NASA DC-8 during the ATom-1 deployment. The scale to the right represents black carbon mass-mixing ratio in units of ng rBC/kg of air.

New data collected during ATom flights provide measurements of aerosols and black carbon concentrations in the atmosphere.

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High-Resolution Permafrost Maps for Western Alaska

Submitted by ORNL DAAC Staff on 2018-09-27

Map of permafrost presence and locations of elevation extremes.

High-resolution elevation maps, based on LiDAR, were used to model the distribution of permafrost across the Y-K Delta of Alaska. The map insets show detail for areas of relative high elevation (left) and low elevation (right).

Scientists with NASA's ABoVE field campaign modeled the distribution of permafrost across the Yukon-Kuskokwim Delta of Alaska.

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Soil Carbon Content Across the Great Plains

Submitted by ORNL DAAC Staff on 2018-09-24

Visualization of Surface Soil Organic Carbon Fractions across the Great Plains Region, USA.

Visualization of surface soil organic carbon fractions across the Great Plains region, USA, using nearest neighbor interpolation (from the ORNL DAAC Spatial Data Access Tool).

A new dataset provides gridded estimates of organic carbon in soil at 1 km resolution across four US states.

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Daymet now available in the Fixed Sites Tool

Submitted by ORNL DAAC Staff on 2018-09-21

Fixed Sites Subsets Tool for North America Now Includes Daymet Data

A site within the National Ecological Observatory Network demonstrates that Daymet data can now be accessed using the Fixed Sites Subsets Tool.

For study sites in North America, Daymet daily weather data is now provided alongside pre-processed MODIS and VIIRS data subsets.

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ATom Mission Flight Track and Navigation Data

Submitted by ORNL DAAC Staff on 2018-09-17

Flight lines of the NASA Atmospheric Tomography Mission (ATom) viewed in Google Earth.

Explore detailed flight track and aircraft navigation data from all four campaigns of the NASA Atmospheric Tomography Mission (ATom).

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Carbon Storage in Tropical Forests

Submitted by ORNL DAAC Staff on 2018-09-13

This image shows the height of the forest canopy for a portion of the Pongara National Park along the Gabon Estuary in Gabon, West Africa. This area includes some of the tallest mangrove forests in the world, indicated by a dark green color, where trees tower up to 60 meters (200 feet). The data were estimated by fusion of PolInSAR and LiDAR data collected by the AfriSAR campaign in March 2016.

NASA's AfriSAR campaign measured forest structure in Gabon, West Africa to inform estimates of forest carbon storage capacity.

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Updated: ATom Measures Greenhouse Gases and Pollution

Submitted by ORNL DAAC Staff on 2018-09-06

The Atmospheric Tomography Mission (ATom) is an Earth Venture Suborbital-2 mission.

Merged data from ATom's first two flight campaigns (August 2016 and February 2017) were updated with revised data along with edits to the author list and user guide.

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