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AVIRIS-NG L3 Derived Aboveground Biomass, LA, USA, 2021, V2

Submitted by ORNL DAAC Staff on 2023-06-30
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Herbaceous aboveground biomass (megagrams/hectare) product for the Atchafalaya and Terrebonne Basins, coastal Louisiana, derived from AVIRIS-NG data collected during the April and August 2021.

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High-resolution gridded estimates of herbaceous aboveground biomass (AGB) for the Atchafalaya and Terrebonne basins of the Mississippi River Delta.

Hourly Soil Moisture Logger Data, Alberta and Alaska, 2017-2021

Submitted by ORNL DAAC Staff on 2023-06-30
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Location of sites in Alaska, U.S., and Alberta, Canada (left, red triangles) and calibration plot (right) for the Campbell Scientific CS625 soil moisture sensor and five types of organic soils.

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Hourly in-situ soil moisture measurements from data loggers in predominantly organic soils along the Sag River and near Red Earth Creek.
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Delta-X: Bed and Suspended Sediment Grain Size, MRD, LA, USA, 2021, Version 2

Submitted by ORNL DAAC Staff on 2023-06-14
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Suspended and bed sediment sampling locations in the Wax Lake Delta, Louisiana. Clusters of measurements are grouped together into single points on this map. Map excludes measurements made far upstream of the Wax Lake Delta or in the Terrebonne River Basin.

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Sediment concentration and grain size distribution measurements from suspended and bed sediment samples collected as part of the Delta-X Spring and Fall 2021 campaigns.

Water Surface Elevations, MRD, Louisiana, 2021

Submitted by ORNL DAAC Staff on 2023-06-14
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 AirSWOT L3 water surface elevations collected on April 1, 2021 over the Atchafalaya Basin. Each point is colored based on its elevation with respect to the NAVD88 vertical datum (GEOID12B), as shown in the colorbar.

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Water surface elevations at selected point locations generated from the AirSWOT data collected during the Spring and Fall 2021 Delta-X deployments over the Atchafalaya and Terrebonne basins in LA, USA.

Post-Fire & Unburned Field Site Data, Anaktuvuk River Fire Area, 2008-2017

Submitted by ORNL DAAC Staff on 2023-06-14
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The 2007 Anaktuvuk River fire burned across riparian stringers and wet channels around high-centered polygons that are typically left as unburned inclusions. (2008 photo by D. Yokel). Source: Jandt et al., 2012.

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Field measurements from 26 burned and unburned transects established in 2008 in the region of the Anaktuvuk River tundra fire on the Arctic Slope of Alaska, US.
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Lake & Pond Extents in Alaska, 2019-2021

Submitted by ORNL DAAC Staff on 2023-04-14
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Four subregions of Alaska (left) with example of lakes and ponds derived from PlanetScope imagery (right). Lake and pond extents include monthly climatological composites (May - September) and 3-year composites for 2019-2021. The inset for the Fairbanks (FB) region shows a close-up of the water extents overlain on sub-meter Esri base map imagery. The Yukon Flats (YF) inset shows variability in surface area of large lakes. The Delta Junction (DJ) inset shows seasonal changes in the area of small ponds. The Yukon-Kuskokwim Delta (YKD) inset shows the spatial variability of water body areas in this region and is an example of a 3-year composite.

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Polygon spatial files of lake and pond extents for three sub-regions of Interior Alaska's boreal forest, and one tundra region located in Alaska's Yukon-Kuskokwim Delta.
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