20170804
08491500
1.0
FGDC CSDGM Metadata
FALSE
CalculateField polygon_elk_hwm GRIDCODE 1 VB #
Project polygon_elk_hwm_clip_diss "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr.shp" PROJCS['NAD_1983_UTM_Zone_17N',GEOGCS['GCS_North_American_1983',DATUM['D_North_American_1983',SPHEROID['GRS_1980',6378137.0,298.257222101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]],PROJECTION['Transverse_Mercator'],PARAMETER['False_Easting',500000.0],PARAMETER['False_Northing',0.0],PARAMETER['Central_Meridian',-81.0],PARAMETER['Scale_Factor',0.9996],PARAMETER['Latitude_Of_Origin',0.0],UNIT['Meter',1.0]] # PROJCS['NAD_1983_UTM_Zone_17N',GEOGCS['GCS_North_American_1983',DATUM['D_North_American_1983',SPHEROID['GRS_1980',6378137.0,298.257222101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]],PROJECTION['Transverse_Mercator'],PARAMETER['False_Easting',500000.0],PARAMETER['False_Northing',0.0],PARAMETER['Central_Meridian',-81.0],PARAMETER['Scale_Factor',0.9996],PARAMETER['Latitude_Of_Origin',0.0],UNIT['Meter',1.0]] NO_PRESERVE_SHAPE #
EliminatePolygonPart "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr.shp" "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr1.shp" PERCENT "0 SquareMeters" 50 CONTAINED_ONLY
Erase "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr1.shp" polygon_elk_hwm_clip_diss "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr2.shp" #
MultipartToSinglepart "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr2.shp" "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr3.shp"
CopyFeatures "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr3.shp" "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" # 0 0 0
AddField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" HullWidth DOUBLE 32 8 # # NULLABLE NON_REQUIRED #
AddField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" HullLen DOUBLE 32 8 # # NULLABLE NON_REQUIRED #
AddField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" MBR_Area DOUBLE 32 8 # # NULLABLE NON_REQUIRED #
AddField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" RatioL2W DOUBLE 32 8 # # NULLABLE NON_REQUIRED #
AddField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" PartCount LONG 32 8 # # NULLABLE NON_REQUIRED #
Poly_MBR_Analyzer "C:\GIS\FIM Tools\Scratch Workspace\polygon_elk_hwm_clip_diss_Pr3.shp" "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp"
AddField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" MaxLength DOUBLE # # # # NON_NULLABLE NON_REQUIRED #
CalculateField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" MaxLength 50 VB #
AddField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" MinLength DOUBLE # # # # NON_NULLABLE NON_REQUIRED #
CalculateField "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" MinLength 0 VB #
Select "C:\GIS\FIM Tools\Scratch Workspace\MBRA.shp" "C:\GIS\FIM Tools\Current Workspace\PH_polygon_elk_hwm_clip_diss.shp" ""HullLen" <= "MaxLength" AND "HullLen" > "MinLength""
polygon_elk_hwm
0.389
file://\\IGSAKAEWLT030\G$\WV_floods\datarelease_files\Elk_hwm_derived\polygon_elk_hwm.shp
Local Area Network
452901.826898
476056.500000
4250551.500000
4260508.500000
1
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_UTM_Zone_17N
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.5'><WKT>PROJCS["NAD_1983_UTM_Zone_17N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-81.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26917]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>450445547.3910538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26917</WKID><LatestWKID>26917</LatestWKID></ProjectedCoordinateSystem>
20171107
22210600
20171107
22210600
150000000
5000
ItemDescription
Kara M. Watson
U.S. Geological Survey, New Jersey Water Science Center
Hydrologist
609-414-6115
3450 Princeton Pike, Suite 110
Lawrenceville
NJ
08648
US
kmwatson@usgs.gov
20171107
ArcGIS Metadata
1.0
ScienceBase
U.S. Geological Survey - ScienceBase
1-888-275-8747
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
US
sciencebase@usgs.gov
https://doi.org/10.5066/F76T0K4K
0.389
Shapefile
polygon_elk_hwm
2017-11-01
Stephen J. Cauller
Kara M. Watson
U.S. Geological Survey
Denver, CO
Vector digital data
Characteristics of peak streamflows and extent of inundation in areas of West Virginia and southwestern Virginia affected by flooding, June 2016
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Heavy rainfall occurred across central and southern West Virginia in June 2016 as a result of repeated rounds of torrential thunderstorms. The storm caused major flooding and flash flooding in central and southern West Virginia. Following the storm event, U.S. Geological Survey (USGS) hydrographers recovered and documented 422 high-water marks in West Virginia, noting location and height of the water above land surface. Many of these high-water marks were used to create flood-inundation maps for selected communities of West Virginia that experienced flooding in June 2016. This dataset is the mapped inundated area layer for the communities of Kanawha and Clay Counties. This polygon shapefile dataset was created to provide an extent of flood inundation along the Elk River within the communities of Kanawha and Clay Counties, West Virginia. Digital elevation data was used as a reference to determine the polygon line placement. This polygon dataset was created by using high-water mark water-surface elevation values on the land surface and a digital elevation model. The extent of the inundation map is a 45-mi reach of the Elk River in Kanawha and Clay Counties. The HWM elevation data was used to create the flood water-surface raster file. The water-surface raster was the basis for the creation of the final flood inundation polygon and depth layer to support the development of flood inundation map for the Federal Emergency Management Agency's (FEMA) response and recovery operations.</SPAN></P></DIV></DIV>
This polygon dataset was created to support the development of flood inundation maps for the Federal Emergency Management Agency's (FEMA) response and recovery operations following a June, 2016 flood event in the communities of Kanawha and Clay Counties, West Virginia. Areas within this polygon layer were inundated with water. This dataset was created using the high-water mark elevation data values.
Kara M. Watson
U.S. Geological Survey, New Jersey Water Science Center
609-414-6115
3450 Princeton Pike, Suite 110
Lawrenceville
NJ
08648
US
kmwatson@usgs.gov
Geographic Names Information System (GNIS)
Elk River
Kanawha County
West Virginia
Clay County
June 23-24, 2016
USGS Thesaurus
extent
flood
flood inundation mapping
high-water marks
depth
extent
flood
Elk River
flood inundation mapping
Kanawha County
high-water marks
depth
June 23-24
2016
West Virginia
Clay County
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), 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. Inundated areas shown should not be used for navigation, regulatory, permitting, or other legal purposes. The U.S. Geological Survey 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. These maps are only depicting the June 2016 event and may not be representative of other flooding conditions. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), 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 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.</SPAN></P></DIV></DIV>
Characteristics of peak streamflows and extent of inundation in areas of West Virginia and southwestern Virginia affected by flooding, June 2016
2017-11-01
Shaun M. Wicklein
Stephen J. Cauller
Samuel H. Austin
Kara M. Watson
R. Russell Lotspeich
U.S. Geological Survey
Reston, VA
Jeremy S. White
Digital Document
https://doi.org/10.3133/ofr20171140
-81.540217
-81.076192
38.40195
38.513152
ground condition
2016-06-23
2016-06-24
Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333
1
-81.540066
-81.274220
38.492604
38.401950
All values of depth are positive values. Data was checked for unattached polygons, which were deleted.
Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
During large, short-term events, the USGS collects additional data (high-water marks, additional sensor deployments) to aid in documenting high-water events. This short-term event data is uploaded to the USGS Short-Term Network (STN) for long-term archival. The USGS Flood Event Viewer provides convenient, map-based and data table access to storm-surge and high-water mark event-based data collected within the USGS STN. Attributes for the high-water marks were input from surveyed values obtained at the recorded high-water mark. Surveys were conducted and recorded by USGS staff. High-water mark attributes went through quality assurance check before input into USGS Short-Term Network (STN). U.S. Geological Survey, 2017, Short-Term Network Data Portal, accessed on April 24, 2017, at http://water.usgs.gov/floods/FEV/
Used GPS equipment to record locational data for high-water mark, NAD83 datum. Used cross-section data points from surveyed high-water mark data, accurate to the datum of the survey.
Used a level gun or real-time Global Navigation Satellite Systems (RT-GNSS) to survey in vertical elevation level for high-water mark. A high-water mark quality description and uncertainty value were assigned to the high-water mark. Used cross-section data points from surveyed high-water mark data, accurate to the datum of the survey. Vertical accuracy to the input Lidar DEM dataset.
The digital elevation model (lidar dem) that was used for spatial processing is a 5 meter resolution dataset.
2017-02-01
The first step in the generation of the flood-inundation maps was the creation of a flood-elevation raster surface. Flood extent and depth surfaces were created independently for each community, using the HWM elevations and the “Topo to Raster” interpolation/geoprocessing technique to create a water-surface elevation layer. A geographic limit was placed on the extent of the generated surface based on the distribution of HWMs and an understanding of the natural hydrologic flow in the area of each community. The ArcGIS Spatial Analyst Tool used to create the water-surface elevation raster was the “Topo to Raster” tool with the cross sections interpolation procedure (http://pro.arcgis. com/en/pro-app/tool-reference/3d-analyst/how-topo-to-rasterworks.htm, accessed March 2017). A cross section was drawn through the location of the HWM and was run perpendicular to the direction of the flood flow. If there were multiple HWMs in an area with the same or similar elevations, one cross section was drawn that either passed through the HWMs or through the center of a group of HWMs. The elevation of the HWM was assigned to the water-surface elevation of the cross section. This method was used when flooding was a result of overtopped banks of rivers or streams. An inundated area was depicted where the flood-elevation surface was higher than the DEM land surface. The depth of flooding was determined as the difference between the flood-elevation surface and the DEM land surface. Because of the large number of bridges involved in the flood-inundation mapping, the inundation surfaces were not clipped to show any bridges that were not inundated.
2017-03-01
Geographic Names Index System (GNIS) placenames, search Kanawha and Clay County, West Virginia
1
polygon_elk_hwm
Table containing attribute information associated with the data set.
Producer defined
Feature Class
1
FID
FID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Type of dataset shape
Esri
Type of shape; polygon
Shape
Geometry
0
0
0
GRIDCODE
Grid code from depth raster
USGS
1
inundated area
USGS
GRIDCODE
Integer
10
10
0
The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set.
The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.
dataset
EPSG
6.13(3.0.1)
Simple
FALSE
1
TRUE
FALSE
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