Layer: elev_948_7 (ID: 18)

Parent Layer: Depth Grids

Name: elev_948_7

Display Field:

Type: Raster Layer

Geometry Type: null

Description: This layer was created as part of a Flood Inundation Map Library developed for display within the NOAA National Weather Service's Advanced Hydrologic Prediction Services (AHPS). This data represents the potential flood extent for an elevation of 939.2 to 957.5 feet as recorded at the Tioga River at Erwins, NY (Erwins, NY, NY; USGS ID 01526500) streamgage for the Tioga River. This data is part of a series of inundation layers meant to correlate observations and forecasts from the river gages with a visual representation of the areas impacted by high water. The dataset of flood depth grids was created from flood scenarios generated by HEC-RAS runs and LiDAR data obtained from the USGS which was processed to extract bare earth points. A raster of depth grids for each stage was created and subsequently merged to form continuous datasets for the main-stem Tioga River. This data was developed to assist the public and emergency officials with planning and response to high water episodes at or near a defined National Weather Service river forecast point.

Copyright Text: USACE, USACE-Philadelphia District (CENAP), USACE Institute of Water Resources, Hydrologic Engineering Center (CEIWR-HEC), USGS, NWS, FEMA, Esri

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Supported Operations: Query Query Attachments Generate Renderer Return Updates

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