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Learn How Dr. Sparkle Malone Uses ORNL DAAC Data

Headshot of Sparkle Malone in the field.

Dr. Sparkle Malone uses NASA data including the ORNL DAAC Global Subsets Tool and Daymet data for her research on carbon fluxes in the Everglades.

Dr. Sparkle Malone, uses NASA data to explore how a changing climate impacts ecosystem structure and function.

Improvements in Daymet continental-scale daily estimates

Daymet V4 Annual Total of Daily Precipitation in 2019

Annual Total of Daily Precipitation, 2019, shown in Daymet V4 gridded estimates.

Improvements in daymet continental-scale gridded daily precipitation and temperature estimates.

Insights into Ecosystem Dynamics Enabled by Instruments on the ISS

Michele Thornton, ORNL DAAC

Michele Thornton to moderate ESA Q&A with presenters from the session: Ecosystem Dynamics Enabled by New Instruments on the ISS - August 4, 2020 from 1:00 - 1:30.

ESA Session - Ecosystem Dynamics Enabled by Instruments on the International Space Station.


Jessica Welch to Present ORNL DAAC Tools at ESA Workshop

Headshot of Dr. Jessica N. Welch

Jessica Welch will demonstrate ORNL DAAC tools and service at the upcoming Ecological Society of America (ESA) virtual meeting.

The ORNL DAAC invites Ecological Society of America meeting participants to learn about our resources at the NASA Data Made Easy Workshop.

Carbon Sources and Sinks Over North America

Gross Primary Productivity

Mean gross primary productivity (GPP) for the conterminous US and North America in grams of carbon per unit area per month.

Modeled estimates of biogenic CO2 exchanges between land and atmosphere across portions of North America are available.

Landscape-Scale Estimates of Methane Ebullition from Lakes

Map of Alaska study regions.

SAR-based lake ebullition maps. Panel a shows Alaska study regions with SAR footprints outlined in yellow. Subsequent panels show SAR-based CH4 ebullition maps for b) Barrow Peninsula, c) Atqasuk, d) Toolik, e) northern Seward Peninsula, and f) Fairbanks. Study lakes with field-based measurements are outlined (b,c) or boxed (d,e,f) in white. Orange boxes in panel f indicate anthropogenic study lakes.

Synthetic Aperture Radar (SAR) was used to estimate methane ebullition flux for thousands of lakes in five regions across Alaska.

Carbon Combustion Following Saskatchewan Wildfires

Map of Saskatchewan and total carbon combustion.

Spatial estimates of total carbon combustion at 30 m resolution across the 2015 fire perimeters in Saskatchewan (a) and sampled fires (b, c, d). The spatial extents of sampled fires are shown as blue rectangles in (a).

A new Arctic-Boreal Vulnerability Experiment (ABoVE) provides spatial estimates of carbon combustion and uncertainty on a 30 m grid.

Soil Pit Properties from the Arctic-Boreal Vulnerability Experiment

Site sampling plan for active layer soil characterization.

Site sampling plan used for characterizing active layer soils (left). Axes are in meters. At Imnavait Creek, active layer thickness (ALT) was measured on transects intersecting a central soil pit. Soil dielectric properties, in situ moisture and temperature profiles were measured, and soil samples were collected for analyses from the soil pit (right).

Active layer thickness, soil dielectric profiles, and soil physical properties are key variables for understanding the Arctic permafrost layer.

Sub-Saharan Africa High Res Woody Cover and Biomass Estimates

Map of sub-Saharan Africa estimates of woody biomass.

Estimates of woody biomass (tree and shrubs) at 1-km resolution in megagrams per hectare (Mg ha-1). Biomass was estimated from canopy cover, canopy height, and tree allometry. Source: C.W. Ross

Estimates of woody cover and biomass across sub-Saharan Africa were derived from observations, tree allometry equations, and remote-sensing products.

Reanalyzed Atmospheric Particulate Iodine Concentrations

Map of flight lines to measure particulate iodine.

Particulate iodine measured along flight paths in ATom1 and ATom2. Image by J.L. Jimenez

Reanalysis of initial High-Resolution Aerosol Mass Spectrometer measurements of global oceanic coverage of particulate iodine are now available.