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ABoVE: Projection of Permafrost Thaw

Submitted by ORNL DAAC Staff on 2022-07-10
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Changes in simulated permafrost dynamics. Simulated cumulative changes in (A and B) permafrost area for active layer thickness (ALT) less than 3 m from 2010-2299 and (C and D) the sensitivity of simulated changes in permafrost area to changes in mean annual air temperature for RCP4.5 (left column) and RCP8.5 (right column) model projections. 

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Model projections from 1901 to 2299 for the northern hemisphere permafrost domain.
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ACT-America: L2 Weighting Functions for Airborne Lidar CO2

Submitted by ORNL DAAC Staff on 2022-06-27
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Locations of ACT-America flights collecting MFLL carbon dioxide (CO2) measurements over eastern and central U.S. in 2016-2018.

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Vertical weighting function coefficients of the L2 remotely sensed column-average CO2 concentrations during Summer 2016, Winter 2017, Fall 2017, and Spring 2018.

Landsat SR Vegetative Lifeform Cover for CONUS, 1984-2018

Submitted by ORNL DAAC Staff on 2022-05-30
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Percent cover of trees (left) and shrubs (right) in 2018 for the southern Appalachian mountains of Tennessee, Virginia, North Carolina, and South Carolina. Areas shown cover four tiles.

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Estimates of percent cover of tree, shrub, herb, and other (non-vegetation) lifeform classes and uncertainties for the conterminous U.S.
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