{
 "culture": "en-US",
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 "snippet": "A raster dataset containing regional Flood Susceptibility index (FSI) values for developed, non-floodplain areas in the CMAP region.  The FSI was created using the Frequency Ratio approach, which is based on the observed relationship between reported flood locations and potential flooding-related factors.",
 "description": "<DIV STYLE=\"text-align:Left;\"><DIV><DIV><P STYLE=\"margin:0 0 0 0;\"><SPAN>CMAP has developed a <\/SPAN><A href=\"http://www.cmap.illinois.gov/onto2050/strategy-papers/stormwater\"><SPAN>Stormwater and Flooding strategy paper<\/SPAN><\/A><SPAN>, which will inform the recommendations made in ON TO 2050 to address urban and riverine flooding. The paper presents strategies to reduce flooding impact throughout the region by integrating stormwater management into transportation and land use planning, alongside analysis of damages from past flooding events. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>To help direct these strategies, CMAP has developed urban and riverine Flooding Susceptibility Indexes (FSIs) to identify priority areas across the region for flooding mitigation activities. GIS datasets representing flood susceptibility factors were used to construct the indexes, by assessing each factor\u2019s influence using a GIS-based frequency ratio approach. <\/SPAN><SPAN><SPAN>The approach, inputs, and results are described in greater detail in the technical appendix of the <\/SPAN><A href=\"http://www.cmap.illinois.gov/onto2050/strategy-papers/stormwater\"><SPAN>strategy paper<\/SPAN><\/A><SPAN>. The values contained within the raster attribute table represent low (1) to high (10) flood susceptibility. The inputs are listed below, alongside their sources:<\/SPAN><\/SPAN><\/P><UL><LI><P><SPAN STYLE=\"font-size:8pt\">Reported Flood Locations: FEMA National Flood Insurance Program Claims, FEMA Individual Assistance Grants, FEMA Discovery Data, City of Chicago 311 Standing Water Locations, MWRD Detailed Watershed Plans, DuPage County GIS, Kendall County Department of Planning, Lake County Stormwater Management Commission.<\/SPAN><\/P><\/LI><LI><P><SPAN STYLE=\"font-size:8pt\">Topographic Wetness Index: CMAP analysis of Illinois State Geological Survey (ISGS) Light Detection and Ranging (LiDAR) data.<\/SPAN><\/P><\/LI><LI><P><SPAN STYLE=\"font-size:8pt\">Combined sewer service areas: Metropolitan Water Reclamation District; IL EPA; municipalities with combined sewers outside of Cook County.<\/SPAN><\/P><\/LI><LI><P><SPAN STYLE=\"font-size:8pt\">Elevation differential between property and nearest Base Flood Elevation (BFE): CMAP analysis of ISGS LiDAR data and FEMA BFE data.<\/SPAN><\/P><\/LI><LI><P><SPAN STYLE=\"font-size:8pt\">Impervious cover: 2011 National Land Cover Dataset.<\/SPAN><\/P><\/LI><LI><P><SPAN STYLE=\"font-size:8pt\">Impervious cover of watershed catchment: CMAP analysis of NLCD and National Hydrography Program data.<\/SPAN><\/P><\/LI><LI><P><SPAN STYLE=\"font-size:8pt\">Age of first development: U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Wall-to-Wall Anthropogenic Land Use Trends (NWALT) 1974-2012 land cover.<\/SPAN><\/P><\/LI><LI><P><SPAN STYLE=\"font-size:8pt\">Precipitation variation: NOAA Atlas 14 10-year, two hour storm event.<\/SPAN><\/P><\/LI><\/UL><\/DIV><\/DIV><\/DIV>",
 "summary": "A raster dataset containing regional Flood Susceptibility index (FSI) values for developed, non-floodplain areas in the CMAP region.  The FSI was created using the Frequency Ratio approach, which is based on the observed relationship between reported flood locations and potential flooding-related factors.",
 "title": "clip_CMAP_Flood_Susceptibility_Index__Urban__NSTclip",
 "tags": [
  "Flooding",
  "Stormwater"
 ],
 "type": "",
 "typeKeywords": [],
 "thumbnail": "",
 "url": "",
 "minScale": 150000000,
 "maxScale": 5000,
 "spatialReference": "",
 "accessInformation": "Please cite the Chicago Metropolitan Agency for Planning (2017) as data source, including a link to the Stormwater and Flooding strategy paper when possible.  The inputs used to create this dataset were varied, and are described alongside creation procedures in the strategy paper appendix.",
 "licenseInfo": "<DIV STYLE=\"text-align:Left;\"><DIV><DIV><P><SPAN>There are no warranties, expressed or implied, regarding this dataset's accuracy or fitness for a particular use.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>",
 "portalUrl": ""
}