Flood-inundation maps for the Schoharie Creek at Prattsville, New York, 2014
Links
- Document: Report (12.3 MB pdf)
- Sheets:
- Sheet01—stage of 9.0 feet (6.02 MB pdf)
- Sheet02—stage of 10.0 feet (6.02 MB pdf)
- Sheet03—stage of 11.0 feet (6.03 MB pdf)
- Sheet04—stage of 12.0 feet (6.05 MB pdf)
- Sheet05—stage of 13.0 feet (6.11MB pdf)
- Sheet06—stage of 14.0 feet (6.20 MB pdf)
- Sheet07—stage of 15.0 feet (6.16 MB pdf)
- Sheet08—stage of 16.0 feet (6.16 MB pdf)
- Sheet09—stage of 17.0 feet (6.12 MB pdf)
- Sheet10—stage of 18.0 feet (6.11 MB pdf)
- Sheet11—stage of 19.0 feet (6.12 MB pdf)
- Sheet12—stage of 20.0 feet (6.06 MB pdf)
- Sheet13—stage of 21.0 feet (6.04 MB pdf)
- Sheet14—stage of 22.0 feet (6.03 MB pdf)
- Sheet15—stage of 23.0 feet (6.03 MB pdf)
- Sheet16—stage of 24.0 feet (6.02 MB pdf)
- Sheet17—stage of 25.0 feet (6.01 MB pdf)
- Additional Report Piece: SchohariePrattsvill.kmz (3.96 MB)
- Application Sites:
- Metadata:
- Download citation as: RIS | Dublin Core
Abstract
Digital flood-inundation maps for a 2.6-mile reach of the Schoharie Creek at Prattsville, New York, were created by the U.S. Geological Survey (USGS) in cooperation with the New York State Department of Environmental Conservation. 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 at Schoharie Creek at Prattsville (station number 01350000). Near-real-time stages at this streamgage may be obtained online from the USGS National Water Information System (http://waterdata.usgs.gov/) or the National Weather Service Advanced Hydrologic Prediction Service (http://water.weather.gov/ahps/), which also forecasts flood hydrographs at this site. National Weather Service-forecasted peak-stage information may be used in conjunction with the maps developed in this study to show predicted areas and depths of flood inundation.
Flood profiles were computed for the stream reach by means of a one-dimensional step-backwater model. The model was calibrated by using the stage-discharge relation (rating 82.0) at the Schoharie Creek at Prattsville streamgage (station 01350000) and high-water marks from the flood of August 28, 2011. The hydraulic model was then used to compute 17 water-surface profiles for flood stages at 1-foot intervals referenced to the streamgage datum and ranging from bankfull to greater than 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 0.61-foot vertical root-mean squared error and 6.6-foot horizontal resolution, in order to delineate the area flooded at each water level.
These flood-inundation maps, along with near-real-time stage data from USGS streamgages and forecasted stage data from the National Weather Service, can 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 postflood recovery efforts.
Suggested Citation
Nystrom, E.A., 2016, Flood-inundation maps for the Schoharie Creek at Prattsville, New York, 2014: U.S. Geological Survey Scientific Investigations Report 2015–5190, 12 p., 17 sheets, https://dx.doi.org/10.3133/sir20155190.
ISSN: 2328-0328 (online)
Study Area
Table of Contents
- Abstract
- Introduction
- Creation of Flood-Inundation Map Library
- Summary
- References Cited
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Flood-inundation maps for the Schoharie Creek at Prattsville, New York, 2014 |
Series title | Scientific Investigations Report |
Series number | 2015-5190 |
DOI | 10.3133/sir20155190 |
Year Published | 2015 |
Language | English |
Publisher | U.S. Geological Survey |
Publisher location | Reston, VA |
Contributing office(s) | New York Water Science Center |
Description | Report: vii, 15 p.; 17 Sheets: 17.00 x 22.00 inches or smaller; Application Sites; Metadata |
Country | United States |
State | New York |
Other Geospatial | Prattsville |
Online Only (Y/N) | Y |
Additional Online Files (Y/N) | Y |