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Spectral Reflectance of Tundra Plants

Submitted by ORNL DAAC Staff on
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A plot at a common garden ecotype site near Eagle Creek, Alaska. Common garden sites were established with different populations of the tussock-forming sedge taken from different latitudes in Alaska.

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Researchers with the Arctic-Boreal Vulnerability Experiment (ABoVE) measured plot-level and species-specific full-spectrum reflectance data for tundra plants.

River Ice Breakup and Freeze-up Stages from ABoVE

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Examples of freeze-up stages in the Grayling study area. Landsat images are displayed as color composites (R: SWIR, G: NIR, B: green), where water appears dark blue and snow/ice appears light blue.

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Estimates of river ice breakup and freeze-up stages along selected reaches of the Yukon and Tanana Rivers in the Yukon River Basin in interior Alaska from 1972-2016 are now available from ABoVE.

MODIS-derived Forest Radiation Data for Brazil

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Average daily net radiation for the 8-day timestep, 2000-03-29 to 2000-04-06, in the upper Xingu River Basin, Mato Grosso, Brazil, study area.

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Three MODIS products were used to derive daily average land surface net radiation for the forests of the upper Xingu River Basin in Mato Grosso, Brazil.

CO2 Flux for the Northern Gulf of Mexico

Submitted by ORNL DAAC Staff on
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Monthly composite images of satellite-derived pCO2 for the northern Gulf of Mexico, corresponding to each of the cruises for which observational data were acquired. Black pixels in the images correspond to areas that were masked (e.g., land, clouds), and the dotted lines represent the 45 and 200 m isobaths.

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Monthly estimates of ocean surface pCO2 and air-sea flux of CO2 are available from NASA's Carbon Monitoring System.