Filters: Tags: Eastern Colorado (X)
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. These data are in support of report DS 456 (Arnold and others, 2009). 30 equal-area polygons generated using techniques described in Scott (1990). Polygons include areas overlying the High Plains Aquifer in Colorado having a depth to water less than 180 feet, a saturated thickness greater than 50 feet, and underlying irrigated agricultural lands. Described in Arnold and others (2009). Input saturated thickness and depth to water...
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. These data are in support of report DS 456 (Arnold and others, 2009). This grid represents the depth to groundwater in the High Plains Aquifer in Colorado in 2000. The depth-to-water grid was generated for the entire High Plains Aquifer from depth-to-water measurements collected in 2000. Shown as figure 12 in McMahon and others (2007).
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. These data are in support of report DS 456 (Arnold and others, 2009). This dataset includes 90 potential groundwater sampling sites randomly generated using techniques described in Scott (1990), composed of 30 locations with a first, second, and third choice of sampling location. Sites are in 30 equal area polygons that divide areas in the High Plains Aquifer in Colorado with a depth to water less than 180 feet, a saturated thickness...
Despite its subdued expression and isolated location within the Great Plains of southeastern Colorado, the 80-km-long Cheraw fault may be one of the most active faults in North America east of the Southern Rocky Mountains. We present geomorphic analyses, geochronology, and paleoseismic trenching data to 1) document the rupture history of the ~45-km-long southwestern section of the Cheraw fault over the past ~19 ka, and 2) evaluate slip-rate changes for the entire fault over the past ~200 ka. Results from new trenches excavated at the Old Ranch site show evidence of four surface-rupture events since ~19 ka, each with an average vertical displacement of 0.75 m. An additional event is likely only slightly older than...
Categories: Data;
Tags: Arkansas River,
Basin and Range,
Cheraw Fault,
Eastern Colorado,
Geomorphology,
Well network for long-term monitoring of agricultural chemicals in the High Plains Aquifer, Colorado
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. These data are in support of report DS 456 (Arnold and others, 2009). Data set contains point locations of 20 wells located in areas overlying the High Plains Aquifer in Colorado having a depth to water less than 180 feet, a saturated thickness greater than 50 feet, and underlying irrigated agricultural lands. Well completion data are included.
Categories: pre-SM502.8;
Tags: Eastern Colorado,
Groundwater well network,
High Plains Aquifer,
NSDI,
USA,
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. These data are in support of report DS 472 (Arnold and others, 2009). This data set represents the saturated thickness of the High Plains aquifer within Colorado. The water levels used in generating the water-table data were collected from High Plains wells in the year 2000. Saturated thickness was derived by subtracting aquifer-base elevation from water-table elevation.
Categories: pre-SM502.8;
Tags: Eastern Colorado,
High Plains Aquifer,
NSDI,
Saturated thickness,
USA,
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