Flood-Inundation Maps for the East Fork White River at Columbus, Indiana

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Lombard, Pamela J.

Publication_Date: 2012

Title:

Flood-Inundation Maps for the East Fork White River at Columbus, Indiana

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: Scientific Investigations Map

Issue_Identification: 3255

Publication_Information:

Publication_Place: Reston, Virginia

Publisher: U.S. Geological Survey

Online_Linkage: <https://pubs.usgs.gov/sim/3255/>

Description:

Abstract:

Digital flood-inundation maps for a 5.4-mile reach of the East Fork White River at Columbus, Indiana, from where the Flatrock and Driftwood Rivers combine to make up East Fork White River to just upstream of the confluence of Clifty Creek with the East Fork White River, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The 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 USGS streamgage 03364000, East Fork White River at Columbus, Indiana. Current conditions at the USGS streamgage may be obtained on the Internet from the USGS National Water Information System (<http://waterdata.usgs.gov/in/nwis/uv/?site_no=03364000&agency_cd=USGS&>). In addition, the same data are provided to the National Weather Service (NWS) for incorporation into their Advanced Hydrologic Prediction Service (AHPS) flood warning system (http:/water.weather.gov/ahps/). Within this system, the NWS forecasts flood hydrographs for the East Fork White River at Columbus that may be used in conjunction with the maps developed in this study to show predicted areas of flood inundation.
For this study, flood profiles were computed for the stream reach by means of a one-dimensional step-backwater model developed by the U.S. Army Corps of Engineers. The hydraulic model was calibrated by using the most current stage-discharge relation at USGS streamgage 03364000, East Fork White River at Columbus, Indiana. The calibrated hydraulic model was then used to determine 15 water-surface profiles for flood stages at 1-foot (ft) intervals referenced to the streamgage datum and ranging from bankfull to approximately the highest recorded water level 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 0.37-ft vertical accuracy and a 1.02 ft horizontal accuracy), in order to delineate the area flooded at each water level.

Purpose:

The availability of these maps, along with Internet information regarding current stage from the USGS streamgage at Columbus, Indiana, and forecasted stream stages from the NWS, 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.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -85.96

East_Bounding_Coordinate: -85.875

North_Bounding_Coordinate: 39.21

South_Bounding_Coordinate: 39.147

Keywords:

Theme:

Theme_Keyword_Thesaurus: Alexandria Digital Library Feature Type Thesaurus

Theme_Keyword: rivers

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus

Theme_Keyword: surface water (non-marine)

Theme_Keyword: flooding

Theme_Keyword: river reaches

Theme_Keyword: maps and atlases

Theme_Keyword: geospatial analysis

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: flood-inundation maps

Theme_Keyword: flooded area

Place:

Place_Keyword_Thesaurus: Board of Geographic Names

Place_Keyword: Columbus

Place_Keyword: East Fork White River

Place_Keyword: Bartholomew County

Place_Keyword: Indiana

Place_Keyword: United States

Place_Keyword: USA

Access_Constraints:

None. This dataset is provided by USGS as a public service. Users of this geospatial database and hydrologic information derived therefrom should acknowledge the U.S. Geological Survey as the source of the data.

Use_Constraints:

Uncertainties and Limitations for Use of Flood-Inundation Maps: Although the flood-inundation maps represent the boundaries of inundated areas with a distinct line, some uncertainty is associated with these maps. The flood boundaries shown were estimated based on water stages (water-surface elevations) and streamflows at selected USGS streamgages. Water-surface elevations along the stream reaches were estimated by steady-state hydraulic modeling, assuming unobstructed flow, and using streamflows and hydrologic conditions anticipated at the USGS streamgage(s). The hydraulic model reflects the land-cover characteristics and any bridge, dam, levee, or other hydraulic structures existing as of September 2011. Unique meteorological factors (timing and distribution of precipitation) may cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may lead to deviations in the water-surface elevations and inundation boundaries shown. Additional areas may be flooded due to unanticipated conditions such as: changes in the streambed elevation or roughness, backwater into major tributaries along a main stem river, or backwater from localized debris or ice jams. The accuracy of the floodwater extent portrayed on these maps will vary with the accuracy of the digital elevation model used to simulate the land surface. Additional uncertainties and limitations pertinent to this study are described in the document accompanying this set of flood inundation map plates. 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 forecast models to estimate the quantity and timing of water flowing through selected stream reaches in the United States. These forecast models (1) estimate the amount of runoff generated by precipitation and snowmelt, (2) simulate the movement of floodwater as it proceeds downstream, and (3) predict the flow and stage (water-surface elevation) for the stream 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>.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Indiana Water Science Center

Contact_Address:

Address_Type: mailing and physical address

Address: 5957 Lakeside Blvd.

City: Indianapolis

State_or_Province: Indiana

Postal_Code: 46278

Contact_Voice_Telephone: 317-290-3333

Native_Data_Set_Environment: Microsoft Windows 7; ESRI ArcCatalog 10

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 2012

Title: Flood Inundation Mapping Science

Publication_Information:

Publication_Place: Reston, Virginia

Publisher: U.S. Geological Survey

Other_Citation_Details: Web site providing these data and related information

Online_Linkage: <http://water.usgs.gov/osw/flood_inundation/>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Attributes for water-surface elevation 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 USGS streamgage 03364000, East Fork White River at Columbus, Indiana.

Logical_Consistency_Report:

There are no unclosed polygons or intersections without nodes. The ArcGIS geodatabase topology tools were used to make corrections using rules including no gaps, no duplicate lines with the same beginning and ending nodes.

Completeness_Report:

This dataset is complete; there are no planned revisions or updates at this time.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Used cross-section data points from surveyed data, accurate to the datum of the survey.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Used cross-section data points from surveyed data, accurate to the datum of the survey.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey, Indiana Water Science Center

Title:

Flood-inundation maps for the East Fork White River, Columbus, Indiana

Publication_Date: 2012

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Lombard, 2012

Source_Contribution:

Numeric 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.

Process_Step:

Process_Description:

Flood-inundation maps were created for USGS streamgage 03364000, East Fork White River at Columbus, Indiana, which is also a NWS flood-forecast point. The maps were created in a GIS by combining the water-surface profiles and digital elevation model data. The digital elevation model (DEM) data were derived from LiDAR data with horizontal accuracy of 1.02 ft (31 centimeters) with horizontal resolution of 3.9 ft (1.2 meters) and vertical accuracy of 0.37 ft at a 95-percent confidence level for the "open terrain" land-cover category (root mean squared error of 0.19 ft (5.8 centimeters)). Although a finer resolution of the DEM was possible given the accuracy of the LiDAR data, the final DEM had a grid-cell size of 10 square feet in order to decrease the GIS processing time. Estimated flood-inundation boundaries for each simulated profile were developed with HEC–GeoRAS software. HEC–GeoRAS is a set of procedures, tools, and utilities for processing geospatial data in ArcGIS by using a graphical user interface. The interface allows the preparation of geometric data for import into HEC–RAS and processes simulation results exported from HEC–RAS. USGS personnel then modified the HEC–GeoRAS results to ensure a hydraulically reasonable transition of the boundary between modeled cross sections relative to the contour data for the land surface. The maps show estimated flood-inundated areas overlaid on high-resolution, geo-referenced, aerial photographs of the study area for each of the water-surface profiles that were generated by the hydraulic model. For more information on data processing and checking procedures, see the full report at <https://pubs.usgs.gov/sim/3255>.

Process_Date: 2012

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 11

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Indiana State Plane Eastern Zone

Map_Projection_Parameters:

Standard_Parallel: 0.000000

Longitude_of_Central_Meridian: 0.000000

False_Easting: 0.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000001

Ordinate_Resolution: 0.000001

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988

Altitude_Resolution: 0.000001

Altitude_Distance_Units: feet

Altitude_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Each entity corresponds to an estimated flood extent area for stream stages 5-19 feet at the USGS streamgage 03364000, East Fork White River at Columbus, Indiana. The attributes represent the USGS station ID, USGS stage height associated with the area, and NAVD 88 elevation that correlates with the stage.
Attributes:

STAGE:  USGS stage height associated with the area, in feet.
ELEV:   NAVD88 elevation that correlates with the stage, in feet.
USGSID: USGS station ID number
GRIDID: grid id number, significant only for calculations within this study

Entity_and_Attribute_Detail_Citation:

Lombard, P.J., 2012, Flood-inundation maps for the East Fork White River at Columbus, Indiana: U.S. Geological Survey Scientific Investigations Map 3255, <https://pubs.usgs.gov/sim/3255/>

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Indiana Water Science Center

Contact_Position: GIS Specialist

Contact_Address:

Address_Type: mailing and physical address

Address: 5957 Lakeside Blvd.

City: Indianapolis

State_or_Province: Indiana

Postal_Code: 46278

Contact_Voice_Telephone: 317-290-3333

Resource_Description: USGS SIM 3255

Distribution_Liability:

This database, identified as SIM 3255, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. 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 information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. This coverage may be redistributed if it is not edited and is properly referenced.
Disclaimer for Flood-Inundation Maps: Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. 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.
Uncertainties and Limitations for Use of Flood-Inundation Maps: Although the flood-inundation maps represent the boundaries of inundated areas with a distinct line, some uncertainty is associated with these maps. The flood boundaries shown were estimated based on water stages (water-surface elevations) and streamflows at selected USGS streamgages. Water-surface elevations along the stream reaches were estimated by steady-state hydraulic modeling, assuming unobstructed flow, and using streamflows and hydrologic conditions anticipated at the USGS streamgage(s). The hydraulic model reflects the land-cover characteristics and any bridge, dam, levee, or other hydraulic structures existing as of September 2011. Unique meteorological factors (timing and distribution of precipitation) may cause actual streamflows along the modeled reach to vary from those assumed during a flood, which may lead to deviations in the water-surface elevations and inundation boundaries shown. Additional areas may be flooded due to unanticipated conditions such as changes in the streambed elevation or roughness, backwater into major tributaries along a main stem river, or backwater from localized debris or ice jams. The accuracy of the floodwater extent portrayed on these maps will vary with the accuracy of the digital elevation model used to simulate the land surface.
Additional uncertainties and limitations pertinent to this study are described in the document accompanying this set of flood-inundation map plates. 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 forecast models to estimate the quantity and timing of water flowing through selected stream reaches in the United States. These forecast models (1) estimate the amount of runoff generated by precipitation and snowmelt, (2) simulate the movement of floodwater as it proceeds downstream, and (3) predict the flow and stage (water-surface elevation) for the stream 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>.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Shapefile

Format_Version_Number: 1.0

Format_Information_Content: Flood inundation polygons in State Plane Coordinate System

Transfer_Size: 2.920

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://water.usgs.gov/osw/flood_inundation/>

Network_Resource_Name: <https://pubs.usgs.gov/sim/3255/Downloads/Polygons_StatePlane.zip>

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20120126

Metadata_Review_Date: 20120905

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Position: Ask USGS - Water Webserver Team

Contact_Address:

Address_Type: mailing address

Address: 507 National Center

City: Reston

State_or_Province: Virginia

Postal_Code: 20192

Country: USA

Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998