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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Jonathan D. Voss</dc:contributor>
  <dc:contributor>Paul H. Rydlund Jr.</dc:contributor>
  <dc:creator>David C. Heimann</dc:creator>
  <dc:date>2019</dc:date>
  <dc:description>&lt;p&gt;Digital flood-inundation maps for a 6.7-mile reach of Joachim Creek, De Soto, Missouri, were created by the U.S. Geological Survey (USGS) in cooperation with the city of De Soto and Jefferson County, Missouri. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Program website at &lt;a href="https://www.usgs.gov/mission-areas/water-resources/science/flood-inundation-mapping-fim-program" data-mce-href="https://www.usgs.gov/mission-areas/water-resources/science/flood-inundation-mapping-fim-program"&gt;https://www.usgs.gov/mission-areas/water-resources/science/flood-inundation-mapping-fim-program&lt;/a&gt;, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgage Joachim Creek at De Soto, Missouri (station number 07019500). Near-real-time stages at this streamgage may be obtained on the internet from the USGS National Water Information System at &lt;a href="https://waterdata.usgs.gov/nwis" data-mce-href="https://waterdata.usgs.gov/nwis"&gt;https://waterdata.usgs.gov/nwis&lt;/a&gt; or the National Weather Service Advanced Hydrologic Prediction Service at &lt;a data-mce-href="https://water.weather.gov/ahps2/hydrograph.php?wfo=lsx&amp;amp;gage=desm7" href="https://water.weather.gov/ahps2/hydrograph.php?wfo=lsx&amp;amp;gage=desm7"&gt;https://water.weather.gov/ahps2/hydrograph.php?wfo=lsx&amp;amp;gage=desm7&lt;/a&gt;, which also forecasts flood hydrographs at this site (site DESM7).&lt;/p&gt;&lt;p&gt;Flood profiles were computed for the stream reach using a one-dimensional model for simulation of water-surface profiles with steady-state (gradually varied) or unsteady-state flow computation options. The model was calibrated by using the theoretical stage-discharge relation at the USGS streamgage Joachim Creek at De Soto, Missouri (station number 07019500), and documented high-water marks from the flood of April 18, 2013.&lt;/p&gt;&lt;p&gt;The hydraulic model was then used to compute 10 water surface profiles for flood stages at 1-foot (ft) intervals referenced to the streamgage datum. The profiles ranged from 8.0 ft, or near bankfull, to 17.0 ft, which exceeds the stage that corresponds to the estimated 0.2-percent annual exceedance probability flood (500-year recurrence interval flood). The simulated water-surface profiles were then combined with a geographic information system digital elevation model (derived from light detection and ranging data having a 0.60-ft vertical accuracy and 1.97-ft horizontal resolution) to delineate the area flooded at each water level.&lt;/p&gt;&lt;p&gt;The availability of these maps, along with internet information regarding current stage from the USGS streamgage and forecasted high-flow stages from the National Weather Service, will provide emergency management personnel and residents with information that is critical for flood-response activities such as evacuations and road closures and for post-flood recovery efforts.&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/sir20195068</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title> Flood-inundation maps for Joachim Creek, De Soto, Missouri, 2018</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>