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This update to the Alaska National Land Cover Database (NLCD) 2016 replaces the files dated 20200213. In this update the landcover footprint was extended along the northern coast to include the islands that were missed in previous versions, and several duplicate roads (offset by 1 or 2 pixels) were removed on the Aleutian Islands. The Alaska National Land Cover Database 2016 was created using change detection between the nominal dates of 2011 and 2016 utilizing Google Earth engine composites of Landsat imagery. Traditionally, previous classifications of Alaska used path row data and spectral comparisons between path rows along with ancillary data to derive areas of change. Alaska has many challenges for land cover...
The dataset documents results from particle size analysis conducted on a suite of sediment samples from the VA-Clarke-03 core, Cherry Hill quadrangle, Dinwiddie county, Virginia [36.931926, -77.566802]. The 44-foot-long core was collected on 05/16/2023 using the North Carolina Geological Survey Geoprobe. The core was collected from sands and gravels of the uppermost coastal plain that host the Old Hickory heavy mineral deposit. Because host sediments are non-fossiliferous, there is little consensus as to their age, stratigraphic position, or nomenclature. Current mapping assigns host sands and gravels to two units in the upper part of the Pliocene to Pleistocene Chesapeake Group. In the lab, the core was analyzed...
Categories: Data;
Tags: Beckman Coulter,
Cherry Hill quadrangle,
Dinwiddie County,
FBGC,
Florence Bascom Geoscience Center,
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