U.S. Geological Survey, Indiana Water Science Center
20150505
U.S. Geological Survey
Reston, Virginia
http://in.water.usgs.gov/projects/flood_inun_map.html
01391500vector digital dataUS Geological Survey, Indiana Water Science CenterFlood-Inundation Maps for the White River at IndianapolisdocumentScientific Investigations Report2015-5051http://dx.doi.org/10.3133/sir2015505120150505Nystrom, E.A., 2015, Flood-inundation maps for the White River at Indianapolis, Indiana: U.S. Geological Survey Scientific Investigations Report 2015-5051, 12 p.Reston, VirginiaU.S. Geological Surveyhttp://dx.doi.org/10.3133/sir20155051SIM2015-5051http://wimcloud.usgs.gov/apps/FIM/FloodInundationMapper.htmlFlood-Inundation Maps for the White River at Indianapolis, Indiana
Digital flood-inundation maps for a 6.4-mile reach of the White River in Indianapolis, Indiana, from 0.3 miles upstream of Michigan Street to the Harding Street Generating Station dam (at the confluence with Lick Creek), were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Office of Community and Rural Affairs. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgage on the White River at Indianapolis, Ind. (station number 03353000). Near-real-time stages at this streamgage may be obtained on the Internet from the USGS National Water Information System at http://waterdata.usgs.gov/ or the National Weather Service (NWS) Advanced Hydrologic Prediction Service at http:/water.weather.gov/ahps/, which also forecasts flood hydrographs at this site.
Flood profiles were computed for the stream reach by means of a one-dimensional step-backwater model. The model was calibrated by using the current stage-discharge relations at three USGS streamgages: the White River at Indianapolis (station number 03353000), the White River at Michigan Street at Indianapolis (station number 03352953), and the White River at Stout Generating Station at Indianapolis (station number 03353611). The hydraulic model was then used to computer 11 water-surface profiles for flood stages at 1-foot (ft) intervals referenced to the streamgage datum and ranging from 10 ft, or action stage, to 20 ft, which is the highest rated stage at the streamgage. The simulated water-surface profiles were then combined with a geographic information system digital elevation model (derived from light detection and ranging [lidar] data having a vertical 0.183-ft root mean squared error and 5.0-ft horizontal resolution) to delineate the area flooded at each water level.
Information about the study, floods, and methods used can be found in the USGS Scientific Investigations Report 2015-5051. http://dx.doi.org/10.3133/sir20155051
The availability of these maps, along with Internet information regarding current stage from the USGS streamgage and forecasted high-flow stages from the NWS will provide emergency management personnel and residents with information that is critical for flood response activities such as evacuations and road closures, as well as for post flood recovery efforts.
enA hydraulic model and GIS application was used to produce 11 water-surface elevation profiles. The application models the water-surface elevation across the flood-plain perpendicular to the direction of flow. Flood-depth grids were made by subtracting a DEM from the water surface elevation profiles. The inundation areas are available in a GIS shapefile format, that provides extent of the flood peak for each stage level. This format allows the GIS data to be overlain on maps and aerial photographs, and to be used for various GIS applications, such as FEMA's Hazards U.S. Multi-Hazards (HAZUS-MH) program (Federal Emergency Management Agency, 2010) to estimate flood damages. For more information on data processing and checking procedures, see the full report at http://dx.doi.org/10.3133/sir20155051
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the dataset in nonproprietary form, as well as in ArcGIS format, this metadata file may include some ArcGIS-specific terminology.
201408
ground condition
None planned
-86.204317
-86.167645
39.779730
39.702415
IndianapolisIndianaWhite Rivernone
floodriver/streamflood-inundation mapshigh-water marksflooded areageospatial analysisnone
None. This dataset is provided by the U.S. Geological Survey (USGS) as a public service.
Although these data have been used by the USGS, U.S. Department of the Interior, no warranty expressed or implied is made by the USGS as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
The flood boundaries shown were estimated based on water stages/streamflows at the USGS streamflow-gaging station 03353000, White River at Indianapolis, steady-state hydraulic modeling (assuming unobstructed flow), and a digital elevation model. The hydraulic model reflects the land-cover characteristics and any bridge, dam, levee, or other hydraulic structures existing in August 2014. Unique meteorological factors (timing and distribution of storm) could cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may lead to deviations from the water-surface elevations and inundation boundaries shown here. Additional areas may be flooded due to unanticipated backwater from major tributaries along the main stem or from localized debris- or ice-jams. Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. Although USGS intends to make this server available 24 hours a day, 7 days a week, timely delivery of data and products from this server through the Internet is not guaranteed. The USGS provides these maps "as-is" for a quick reference, emergency planning tool but assumes no legal liability, or responsibility resulting from the use of this information.
If this series of flood-inundation maps will be used in conjunction with National Weather Service (NWS) river forecasts, the user should be aware of additional uncertainties that may be inherent or factored into NWS forecast procedures. The NWS uses river forecast models to estimate the quantity and timing of water flowing through selected river reaches in the United States. These forecast models (1) estimate the amount of runoff generated by a precipitation event, (2) compute how the water will move downstream, and (3) predict the flow and stage (water-surface elevation) for the river at a given location (NWS Advanced Hydrologic Prediction Service (AHPS) forecast point) throughout the forecast period (every 6 hours and 3 to 5 days out in many locations). For more information on AHPS forecasts, please see: http://water.weather.gov/ahps/pcpn_and_river_forecasting.pdf .
mailing and physical address5957 Lakeside BlvdIndianapolisIN46278(317) 290-3333US Geological Survey, Indiana Water Science CenterMicrosoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143UnclassifiedShapefile
Attributes for water-surface elevations were input from the HEC-RAS model output data table. Flow input data for the HEC-RAS model were obtained from the most current stage-discharge relation at the USGS streamgage 03353000 White River at Indianapolis, Ind.
This dataset is complete; there are no planned revisions or updates at this time.
Used cross-section data points from surveyed data, accurate to the datum of the survey.
Used cross-section data points from surveyed data, accurate to the datum of the survey. Vertical accuracy of the input lidar DEM dataset was 0.183 ft root mean squared error (RMSE).
U.S. Geological Survey, Indiana Water Science CenterFlood-Inundation Maps for the White River at Indianapolis, Indiana201X
201408
ground condition
Hydraulic modelNumeric hydraulic modelNumeric hydraulic model was used to compute water-surface profiles at selected elevations along mapped reach. The water-surface profiles were then used to generate the inundation map boundaries.
A GIS application was used to produce a plane representing the flood-peak water surface. The application duplicates the [high-water-mark elevation data points, or water-surface-elevation data from cross-section points of the hydraulic model] across the flood plain perpendicular to the direction of the flood flow. Elevations between [high-water marks, or water-surface points on the cross sections] are proportional interpolations of the water-surface-elevation data and were positioned to generate a flood surface sloping with the water flow. A raster surface was created with the data points using a spline interpolation method, forming the estimated flood surface. A flood-depth grid was made by subtracting the DEM from the flood-surface raster.
Vector
String
11
SimplePolylineFALSE11FALSEFALSE
D_WGS_1984WGS_19846378137.000000298.257224
GCS_WGS_1984WGS_1984_Web_Mercator_Auxiliary_Spherecoordinate pairmeters0.0000000.0000000.0000000.0000000.0000000.000000
North American Vertical Datum of 1988feetAttribute values
Flood-inundation polygons for station ID 03353000Feature Class1103353000 flood-inundation areaU.S. Geological Survey
FIDFIDOID400Internal feature number.ESRIShapeShapeGeometry000Feature geometry.ESRICoordinates defining the features.STAGESTAGEFloat19USGS stage height associated with the area, in feet.U.S. Geological Survey11ELEVELEVFloat19NAVD88 elevation that correlates with the stage, in feet.U.S. Geological Survey11USGSIDUSGSIDString50USGS station ID numberU.S. Geological Survey
UNCERTAINTIES AND LIMITATIONS REGARDING USE OF FLOOD-INUNDATION MAPS
The flood boundaries shown were estimated based on water stages/streamflows at the USGS streamflow-gaging station 03353000, White River at Indianapolis, steady-state hydraulic modeling (assuming unobstructed flow), and a digital elevation model. The hydraulic model reflects the land-cover characteristics and any bridge, dam, levee, or other hydraulic structures existing in August 2014. Unique meteorological factors (timing and distribution of storm) could cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may lead to deviations from the water-surface elevations and inundation boundaries shown here. Additional areas may be flooded due to unanticipated backwater from major tributaries along the main stem or from localized debris- or ice-jams. Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. Although USGS intends to make this server available 24 hours a day, 7 days a week, timely delivery of data and products from this server through the Internet is not guaranteed. The USGS provides these maps "as-is" for a quick reference, emergency planning tool but assumes no legal liability, or responsibility resulting from the use of this information.
If this series of flood-inundation maps will be used in conjunction with NWS river forecasts, the user should be aware of additional uncertainties which may be inherent or factored into NWS forecast procedures. The NWS uses river-forecast models to estimate the quantity and timing of water flowing through selected river reaches in the United States. These forecast models (1) estimate the amount of runoff generated by a precipitation event, (2) compute how the water will move downstream, and (3) predict the flow and stage (water-surface elevation) for the river at a given location (AHPS forecast point) throughout the forecast period (every 6 hours and 3 to 5 days out in many locations). For more information on AHPS forecasts, please see: http://water.weather.gov/ahps/pcpn_and_river_forecasting.pdf.Each entity corresponds to an estimated flood-extent area for stream stages 10-20 feet at the USGS streamgage 03353000, White River at Indianapolis Indiana. The attributes represent the USGS station ID, USGS stage height associated with the area, and NAVD 88 elevation that correlates with the stage.Nystrom, E.A., 2015, Flood-inundation maps for the White River at Indianapolis, Indiana: U.S. Geological Survey Scientific Investigations Report 2015-5051, 12 p.
mailing and physical address
5957 Lakeside Blvd
Indianapolis
IN
46278
(317) 290-3333
US Geological Survey, Indiana Water Science Center
Although these data have been used by the USGS, U.S. Department of the Interior, no warranty expressed or implied is made by the USGS as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. This coverage may be redistributed if it is not edited and is properly referenced.
The flood boundaries shown were estimated based on water stages/streamflows at the USGS streamflow-gaging station 03353000 White River at Indianapolis, Ind., steady-state hydraulic modeling (assuming unobstructed flow), and a digital elevation model. The hydraulic model reflects the land-cover characteristics and any bridge, dam, levee, or other hydraulic structures existing in August 2014. Unique meteorological factors (timing and distribution of storm) could cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may lead to deviations from the water-surface elevations and inundation boundaries shown here. Additional areas may be flooded due to unanticipated backwater from major tributaries along the main stem or from localized debris- or ice-jams. Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. Although USGS intends to make this server available 24 hours a day, 7 days a week, timely delivery of data and products from this server through the Internet is not guaranteed. The USGS provides these maps "as-is" for a quick reference, emergency planning tool but assumes no legal liability, or responsibility resulting from the use of this information.
If this series of flood-inundation maps will be used in conjunction with NWS river forecasts, the user should be aware of additional uncertainties which may be inherent or factored into NWS forecast procedures. The NWS uses river-forecast models to estimate the quantity and timing of water flowing through selected river reaches in the United States. These forecast models (1) estimate the amount of runoff generated by a precipitation event, (2) compute how the water will move downstream, and (3) predict the flow and stage (water-surface elevation) for the river at a given location (AHPS forecast point) throughout the forecast period (every 6 hours and 3 to 5 days out in many locations). For more information on AHPS forecasts, please see: http://water.weather.gov/ahps/pcpn_and_river_forecasting.pdf .
shapefile
http://water.usgs.gov/osw/flood_inundation/
none
none
Downloadable DataData are supplied in ArcGIS shapefile format. Format compatibility is the user's responsibility.
20141118
mailing address
507 National CenterRestonVirginia20192USA
1-888-275-8747 (1-888-ASK-USGS)Ask USGS - Water Webserver TeamUS Geological Survey
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
en20150505http://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile