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Delineation of selected lithologic units using airborne electromagnetic data near Cedar Rapids, Iowa 科技报告
报告编号: 70201138, , 2019
作者:  Valder, Joshua F. jvalder@usgs.gov;  Haj, Adel E. ahaj@usgs.gov;  Bristow, Emilia L.;  Valseth, Kristen J.
Adobe PDF(2052Kb)  |  收藏  |  浏览/下载：34/12  |  提交时间：2019/11/06
Revised groundwater-flow model of the glacial aquifer system north of Aberdeen, South Dakota, through water year 2015 科技报告
报告编号: 70199978, 页数: 68, 2018
作者:  Valder, Joshua F. jvalder@usgs.gov;  Eldridge, William G.;  Davis, Kyle W.;  Medler, Colton J.;  Koth, Karl R.
Adobe PDF(4765Kb)  |  收藏  |  浏览/下载：41/16  |  提交时间：2019/11/06
Construction of a groundwater-flow model for the Big Sioux Aquifer using airborne electromagnetic methods, Sioux Falls, South Dakota 科技报告
报告编号: 70176602, 页数: 4, 2016
作者:  Valder, Joshua F. jvalder@usgs.gov;  Delzer, Gregory C. gcdelzer@usgs.gov;  Carter, Janet M. jmcarter@usgs.gov;  Smith, Bruce D. bsmith@usgs.gov;  Smith, David V. dvsmith@usgs.gov
Adobe PDF(4860Kb)  |  收藏  |  浏览/下载：46/18  |  提交时间：2019/11/06