Filters: Tags: Digitizing (X)
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In order to allow for a comparison across years we visually digitized landcover of Poplar Island from a single image per year at a 1:1000 spatial extent with a minimum mapping unit of 300 square meters (no minimum dimensions aside from area). Images used to assign landcover were provided by the U.S. Army Corps of Engineers and were captured between July and October of their respective years. All images were 1 foot resolution.
Categories: Map;
Tags: Chesapeake Bay,
Chesapeake Bay,
Digitizing,
Ecology,
Geographic Information Systems,
This dataset contains the data described in Looney and Eigenbrode's 2012 Natural Areas journal article (Characteristics and Distribution of Palouse Prairie Remnants: Implications for Conservation Planning), including potential Palouse remnants, a boundary for the study area, and a set of potential remnants that lay outside of the study area. While the potential remnants inside the area were reviewed based on limited ground-truthing described in the article, those outside the area were not. As such, there are likely potential remnants that are in fact re-colonized field margins or drainage ditches, or CRP-like plantings. Since the focus was primarily on eyebrows located in agricultural contexts, many of the river...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ALI,
Aerial photo,
Aerial photograph,
Arid Lands Inititative,
Data,
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