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NASA Earth Observing Data and Tools Aid International Education

Submitted by ORNL DAAC Staff on 2019-10-07
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Dr. Don McNeil and his students analyzing data in the classroom. The projected wall image on the left shows the result of a MODIS data subset using the ORNL DAAC's Global Subsets Tool. The projected wall image on the right shows thematic maps of daily land surface temperature increase in North and South America and Antarctica using a laterally rotated Mollweide Earth projection. Image courtesy of Dr. McNeil.

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Dr. Don McNeil and students at Prince of Songkla University in Thailand use NASA Earth observing data to study environmental change.

Global Solar-Induced Chlorophyll Fluorescence (SIF)

Submitted by ORNL DAAC Staff on 2019-09-10
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Predicted spatially contiguous solar-induced chlorophyll fluorescence (SIF) across the United States for August 1 - 16, 2015. Areas of high SIF are in red, and areas of low SIF are in blue. Agricultural areas, like the U.S. Midwestern corn belt, often have a high rate of photosynthetic production which results in high SIF.

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High-resolution, global, estimates of SIF based on data from the OCO-2 satellite serve as a proxy for rates of terrestrial photosynthesis.

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.