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Subsistence Use Areas in Alaska

Submitted by ORNL DAAC Staff on 2019-11-04
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Combined map of subsistence resource use areas of Interior Alaskan communities with (1) points marking harvest effort locations, (2) polygons indicating harvest effort areas, and (3) lines indicating linear harvesting activity.

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Maps of the search and harvest areas used by residents of Interior Alaska are available.

Tracking Permafrost with P-band SAR

Submitted by ORNL DAAC Staff on 2019-11-04
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AirMOSS radar swaths flown in 2014 and 2015 in Alaska. In situ soil moisture and temperature profile measurements were obtained at the CALM (Circumpolar Active Layer Monitoring) and the UAF GIPL (Geophysical Institute Permafrost Laboratory, University of Alaska Fairbanks) sites and used to validate AirMOSS data products.

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Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) radar data from Alaska are used to derive estimates of active layer thickness. Data from flights in 2014 and 2015 are now available.

Soil Moisture and Tree Measurements at Harvard Forest

Submitted by ORNL DAAC Staff on 2019-11-04
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Upward-facing photo of the canopy at Harvard Forest (transect 2, plot 57) on 2012-10-18.

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Ground-based data collected at the Harvard Forest site was used to validate Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) soil moisture estimates.

Soil Organic Carbon in Tidal Wetlands

Submitted by ORNL DAAC Staff on 2019-11-04
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Estuaries classes used in the study: former river valley primary estuary, former glacier valley primary estuary, river delta primary estuary, tectonic structural primary estuary, coastal lagoon secondary estuary, and unclassified estuary.

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Soil organic carbon (SOC) estimates and environmental data for US estuaries are available for the period 1972-2015.

Vegetation Imagery from Toolik Lake, Alaska

Submitted by ggb on 2019-10-14
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A plot photo (#0656) taken at the largest study area 'Toolik' at elevation 765.7 m. The small white object was included in many of the photos as a color reference. The photographer's boots are also often visible, in this photo they are to the lower left of the white object.

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A new ABoVE dataset offers hundreds of ground-based vegetation photos which may serve as a reference for studies of climate and vegetation change in the area.

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.

New Data from the Atmospheric Tomography (ATom) Mission

Submitted by ORNL DAAC Staff on 2019-10-02
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The Atmospheric Tomography (ATom) Mission is an Earth Venture Suborbital-2 mission to measure greenhouse gases and human-produced air pollution in remote areas.

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Five new datasets from ATom provide measurements of greenhouse gases and human-produced air pollution from 2016 to 2018.

Tracking Fires in Central Kalimantan, Indonesia

Submitted by ORNL DAAC Staff on 2019-10-02
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The area burned in 1997 and 1998 in the Mawas area, Central Kalimantan, Indonesia is shown in pink. The inset with white dot shows the location of Mawas study site on the Island of Borneo.

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Maps of annual burned area from 1997 to 2015 show the extent of fires in the Mawas region of Central Kalimantan.