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Highlights from the Literature

Submitted by ORNL DAAC Staff on 2019-06-19
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Asclepias syriaca (common milkweed) relies on pollinators for movement of its pollen, and evidence suggests that its populations are declining. Image courtesy of Pixabay.

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Daymet daily surface weather and climatological summaries have been cited in nearly 300 peer-reviewed articles. Read about how this popular data product is used in research.

Daymet 2018 Data Now Available

Submitted by ORNL DAAC Staff on 2019-04-08
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Daymet provides high-resolution surface meteorology data for North America. The figure shows annual data for the year 2018; Left: Mean maximum daily temperature, Middle: Total precipitation, Right: Mean minimum daily temperature. Daymet data is archived and distributed by the ORNL DAAC.

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Daymet weather and climate data for North America are now available for the years 1980 - 2018.

High-resolution reflectance data from the Arctic

Submitted by ORNL DAAC Staff on 2019-03-15
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Soil Adjusted Vegetation Index (SAVI) for a site on the Seward Peninsula, Alaska collected on August 14, 2018. SAVI is similar to NDVI, but it suppresses the effects of soil pixels and it uses a canopy background adjustment factor. The reflectance data used to calculate SAVI was collected by the AVIRIS-NG instrument on a flight over the Seward Peninsula, Alaska, on August 14, 2018.

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New AVIRIS-NG data from the 2018 ABoVE airborne campaign and an accompanying data processing tutorial are now available.

Soil Carbon Stocks for Tidal Wetlands

Submitted by ORNL DAAC Staff on 2019-03-08
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Estimated soil carbon stocks (using model results) throughout the Mississippi River delta in Louisiana. Cooler colors (blues and greens) indicate higher soil carbon concentrations.

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Researchers with NASA's Carbon Monitoring System estimated the amount of carbon stored in the soil in tidal wetlands of the United States.

Soil Moisture Datasets Become Fertile Ground for Applications

Submitted by ORNL DAAC Staff on 2019-02-04
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Installation and maintenance of in situ soil moisture sensors require extensive fieldwork. Here Ruzbeh Akbar installs sensors at a SoilSCAPE site in California. (Photo Credit: University of Southern California's SoilSCAPE project)

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An update on the ORNL DAAC's Soil Moisture Visualizer (SMV) is featured in AGU's Eos, Earth & Space Science News.

Mapping Surface Waters from ABoVE

Submitted by ORNL DAAC Staff on 2018-12-10
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Orthomosaic imagery taken from a Beechcraft Super King Air B200 aircraft traveling north of the Mackenzie River in the Dehcho Region of Canada.

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NASA's 2017 ABoVE airborne campaign provides high-resolution, georeferenced, three-band orthomosaics of digital imagery to validate maps of Arctic surface water extent.

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