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The ascii grids represent regional probabilities that groundwater in a particular location will have dissolved oxygen (DO) concentrations less than selected threshold values representing anoxic groundwater conditions or will have dissolved manganese (Mn) concentrations greater than selected threshold values representing secondary drinking water-quality contaminant levels (SMCL) and health-based screening levels (HBSL) for water quality. The probability models were constrained by the alluvial boundary of the Central Valley to a depth of approximately 300 meters (m). We utilized prediction modeling methods, specifically boosted regression trees (BRT) with a Bernoulli error distribution within a statistical learning...
Categories: Publication;
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Boosted Regression Trees,
California,
Central Valley, California,
Domestic Well Water Use,
Drinking Water Use,
The south central U.S. is one of the main agricultural regions in North America and annual agricultural production is valued at more than $44 billion dollars. Climate variability and drought have both direct and indirect impacts on agriculture and consequences for land management. There are many different drought monitoring products and tools available, but unfortunately most were developed without input from the stakeholders who are intended to use them. In the SC CSC region private landowners, such as farmers and ranchers, are responsible for the majority of land management. The goal of this project is to assess the information needs of famers and ranchers in the SC CSC region in the development of drought monitoring...
Categories: Publication;
Types: Citation;
Tags: Agriculture,
Data Visualization & Tools,
Drought,
Drought, Fire and Extreme Weather,
Droughts,
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