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These datasets were used as the basis for preparing contours of equal base altitude for the bedrock aquifers and confining units, which were then used to define the base altitude of the bedrock aquifers in a MODFLOW-2000, three-dimensional groundwater-flow model of the Denver Basin aquifer system (Paschke, 2011). |
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These datasets were used as the basis for preparing contours of equal base altitude for the bedrock aquifers and confining units, which were then used to define the base altitude of the bedrock aquifers in a MODFLOW-2000, three-dimensional groundwater-flow model of the Denver Basin aquifer system (Paschke, 2011). |
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This line dataset (PP1770_alt_base_LKA_con.shp) consists of contours of equal base altitude, in feet, for the lower Arapahoe aquifer of the Denver Basin aquifer system, Colorado. A point dataset was generated in ArcGIS 9.2 (Environmental Systems Research Institute, Inc., 1999-2004) from the Colorado Division of Water Resources Denver Basin geophysical log database (Brian Ahrens, Colorado Division of Water Resources, written commun., 2003), and the point data were contoured using either an ordinary kriging method or an inverse-distance weighted method available in ArcGIS, depending on which method resulted in the least error. This resulting dataset was then used to define the base altitude of the Arapahoe confining unit (model layer 9) in a MODFLOW-2000, three-dimensional groundwater-flow model of the Denver Basin (Paschke, 2011). See the "Supplemental Information" section of this metadata for more detailed descriptions of the datasets, their application, and references. |
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None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. |
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| title:
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Base-altitude contours for the lower Arapahoe aquifer of the Denver Basin aquifer system, Colorado |
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["inlandWaters","inland waters","groundwater","lower Arapahoe aquifer","base-altitude contours","Denver Basin aquifer system","Denver Basin","Colorado","Cretaceous","1988-2003"] |
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en-US |
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200 |
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