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Book Characterization of groundwater flow and water quality for the Madison and Minnelusa aquifers in northern Lawrence County South Dakota

Download or read book Characterization of groundwater flow and water quality for the Madison and Minnelusa aquifers in northern Lawrence County South Dakota written by and published by DIANE Publishing. This book was released on with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Water resources Investigations Report

Download or read book Water resources Investigations Report written by and published by . This book was released on 2002 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hydrogeology and Groundwater Modeling

Download or read book Hydrogeology and Groundwater Modeling written by Neven Kresic and published by CRC Press. This book was released on 2006-10-26 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coupling the basics of hygrogeology with analytical and numerical modeling methods, Hydrogeology and Groundwater Modeling, Second Edition provides detailed coverage of both theory and practice. Written by a leading hydrogeologist who has consulted for industry and environmental agencies and taught at major universities around the world, this unique

Book Methods in Karst Hydrogeology

Download or read book Methods in Karst Hydrogeology written by Nico Goldscheider and published by CRC Press. This book was released on 2014-04-21 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of investigating karstified aquifers lies in their significance as a major source of drinking water. This book describes methods that are basic to all hydrogeological studies, such as hydraulic investigations, hydrochemistry, geophysics, isotope chemistry and modelling, but with the emphasis placed on their application to karst syste

Book Aquatic Insects in the Vicinity of the Black Hills South Dakota and Wyoming

Download or read book Aquatic Insects in the Vicinity of the Black Hills South Dakota and Wyoming written by Grant De Jong and published by Lulu.com. This book was released on 2018-07-12 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Black Hills, straddling the border between southwestern South Dakota and northeastern Wyoming, represent an ecological "island" of mountainous terrain in the midst of the Great Plains. Streams, rivers, lakes, and ponds are abundant, yet the aquatic insect fauna inhabiting those ecosystems has not previously been compiled in a single document. This work demonstrates that the known fauna of 95 families, 335 genera, and 447 species-level aquatic insect taxa has a curious mix of eastern, western, northern, and southern biogeographic affinities, yet many significant data gaps remain, and this work can only represent a starting point. The Black Hills beckon more curious naturalists to come and add to our knowledge.

Book New Publications of the U S Geological Survey

Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 2000 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book New Publications of the Geological Survey

Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 2000 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book U S Geological Survey Karst Interest Group Proceedings St Petersburg Florida February 13 16 2001

Download or read book U S Geological Survey Karst Interest Group Proceedings St Petersburg Florida February 13 16 2001 written by U.S. Geological Survey Karst Interest Group and published by . This book was released on 2001 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Microgravity Methods for Characterization of Groundwater storage Changes and Aquifer Properties in the Karstic Madison Aquifer in the Black Hills of South Dakota 2009 2012

Download or read book Microgravity Methods for Characterization of Groundwater storage Changes and Aquifer Properties in the Karstic Madison Aquifer in the Black Hills of South Dakota 2009 2012 written by Karl R. Koth and published by Geological Survey (USGS). This book was released on 2012-01-01 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of groundwater storage in the karstic Madison aquifer in the Black Hills of South Dakota using microgravity methods was conducted by the U.S. Geological Survey in cooperation with West Dakota Water Development District, South Dakota Department of Environment and Natural Resources, and Lawrence County. Microgravity measurements from 2009 to 2012 were used to investigate groundwater-storage changes and effective porosity in unconfined areas of the Madison aquifer. Time-lapse microgravity surveys that use portable high-sensitivity absolute and relative gravimeters indicated temporal-gravity changes as a result of changing groundwater mass. These extremely precise measurements of gravity required characterization and removal of internal instrumental and external environmental effects on gravity from the raw data. The corrected data allowed groundwater-storage volume to be quantified with an accuracy of about plus or minus 0.5 foot of water per unit area of aquifer. Quantification of groundwater-storage change, coupled with water-level data from observation wells located near the focus areas, also was used to calculate the effective porosity at specific altitudes directly beneath gravity stations. Gravity stations were established on bedrock outcrops in three separate focus areas for this study. The first area, the Spring Canyon focus area, is located to the south of Rapid City with one gravity station on the rim of Spring Canyon near the area where Spring Creek sinks into the Madison aquifer. The second area, the Doty focus area, is located on outcrops of the Madison Limestone and Minnelusa Formation to the northwest of Rapid City, and consists of nine gravity stations. The third area, the Limestone Plateau focus area, consists of a single gravity station in the northwestern Black Hills located on an outcrop of the Madison Limestone. An absolute-gravity station, used to tie relative-gravity survey data together, was established on a relatively impermeable bedrock outcrop to minimize groundwater-storage change at the reference location. Data from the three focus areas allow for interpretation of groundwater-storage characteristics using microgravity measurements. Gravity measurements, together with water-level data from an observation well located 2 miles from the Spring Canyon focus area and measured streamflow in Spring Creek, provided evidence that rapid groundwater-storage change, responding to changes in sinking streamflow over the recharge area of the aquifer, occurred in the Madison aquifer directly beneath the gravity station at Spring Canyon. This phenomenon likely was a result of groundwater movement through caverns, conduits, and fractures, which are common in karst aquifers. Spatially and temporally separated microgravity data for the Doty focus area indicated horizontal and vertical heterogeneity of effective porosity for the Madison aquifer. One such example of this was indicated by water-level measurements at an observation well and gravity measurements at four gravity stations in the southeastern part of the Doty area, which were used to estimate effective porosity values ranging from greater than 0 to 0.18. A decrease in groundwater storage determined by microgravity measurements during the spring recharge period for five upgradient stations in the Doty focus area indicated the possibility of rapid release and downgradient cascading of perched groundwater. Evidence for similar phenomena was documented for Wind Cave and Brooks Cave in the Black Hills. Absolute-gravity measurements at the Limestone Plateau focus area confirmed the relation between water levels in an observation well and changes in groundwater storage. Comparison of these gravity measurements with water levels in a nearby observation well resulted in an effective porosity estimate of 0.02 for the Madison aquifer beneath the gravity station.

Book Black Hills Hydrology Study

Download or read book Black Hills Hydrology Study written by Janet M. Carter and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fact Sheet

Download or read book Fact Sheet written by and published by . This book was released on 2002 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: