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Forest Change From Canopy Cover Loss from 1986-2010

Submitted by ORNL DAAC Staff on 2020-11-30
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North American Forest Dynamics (NAFD) attribution type layer illustrating the type of change event where all events from 1986-2010 were combined. From Schleeweis, K.G. et al. 2020

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The North American Forest Dynamics Attribution product provides information depicting forest change across 258 million ha of the conterminous U.S.

High-Resolution Sub-Daily Climate Driver Data for Western US

Submitted by ORNL DAAC Staff on 2020-11-30
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Four variables for the same 3-hour timestep, December 8, 2015, 12:00 AM to 3:00 AM, a) precipitation flux (kg m-2 s-1) b) air temperature (K) c) shortwave radiation flux (W m-2) d) specific humidity. Source: western_USA_precipitation_3hr_2015-12.nc4

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High-resolution climate data inputs are now available for 11 states in the western U.S.

Ranking Forest Land for Carbon Sequestration/Species Richness

Submitted by ORNL DAAC Staff on 2020-11-30
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Forested land in the western conterminous United States classified by priority for preservation to mitigate climate change, based on the spatial co-occurrence of vulnerability to drought and fire and potential carbon sequestration. Source: Buotte et al. 2020

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Ranking of forest lands for preservation given net ecosystem productivity was derived from the Community Land Model.

Sectored Annual and Hourly Estimates of CO2 from 2010-2015

Submitted by ORNL DAAC Staff on 2020-10-05
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Vulcan v3.0 FFCO2 annual total emissions (tC/km2/year) for the United States in 2011 at a 1 km resolution.  Source: Figure 3(a) in Gurney et al., 2020.

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Two new datasets provide high-resolution estimates of carbon dioxide sector emissions from fossil fuels and cement production for the USA.

Explaining Vegetation Greening Trends in Yellowstone

Submitted by ORNL DAAC Staff on 2020-03-26
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Trends in maximum annual NDVI for natural vegetation within the Greater Yellowstone Ecosystem (GYE) from 1989 to 2014 (Emmett et al. 2019).

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Daymet and North American Carbon Program (NACP) data were used to study Normalized Difference Vegetation Index (NDVI) trends across the Greater Yellowstone Ecosystem.

Mapping Methane Emissions Across California

Submitted by ORNL DAAC Staff on 2019-12-30
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Vista-CA provides locations of methane (CH4) emitting facilities and infrastructure in the State of California. In this figure, the distribution of digesters, feed lots, and dairies across the San Francisco Bay Area and Central Valley are shown.

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The Vista-CA dataset provides locations of potential methane (CH4) emitting facilities and infrastructure across the state of California.

Greenhouse Gas Concentrations for Six US Cities

Submitted by ORNL DAAC Staff on 2019-11-04
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Carbon dioxide concentrations at the MUR site in Salt Lake City, Utah, show a pronounced seasonal pattern of higher CO2 in the winter months.

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Hourly urban greenhouse gas measurements are available for cities in the CO2 Urban Synthesis and Analysis (CO2-USA) Data Synthesis Network.

Soil Organic Carbon in Tidal Wetlands

Submitted by ORNL DAAC Staff on 2019-11-04
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Estuaries classes used in the study: former river valley primary estuary, former glacier valley primary estuary, river delta primary estuary, tectonic structural primary estuary, coastal lagoon secondary estuary, and unclassified estuary.

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Soil organic carbon (SOC) estimates and environmental data for US estuaries are available for the period 1972-2015.