GIS preprocessing for rapid initialization of HEC-HMS hydrological basin models using web-based data services

Castro, Cyndi and Maidment, David

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https://hdl.handle.net/2142/114402 Copy

Description

Title

GIS preprocessing for rapid initialization of HEC-HMS hydrological basin models using web-based data services

Author(s)

Castro, Cyndi and Maidment, David

Issue Date

2020-08-01

Keyword(s)

• CyberGIS
• HEC-HMS
• ArcGIS Living Atlas
• Hydrological Modelling
• Topology

Abstract

Hydrological GIS preprocessing tools are used to spatially relate different datasets for producing topologically connected watersheds and deriving attributes for model parameterization. Obtaining such information requires disparate data-sources from various websites with lengthy processing requirements. This research describes the development of HMS-PrePro, an open-source GIS preprocessing tool that was developed for the U.S. Army Corps of Engineers' (USACE) Hydrologic Engineering Center's Hydraulic Modeling System (HEC-HMS) software. HMS-PrePro provides data as a service by connecting to Esri's Living Atlas web service and extracting authoritative hydrological datasets for any watershed of interest in the contiguous United States. The datasets are saved to a local geodatabase, and spatial operations are executed to automatically delineate the watershed, derive topological connections, and estimate several common hydrologic parameters. An output basin text file is produced in HEC-HMS format for rapid model initialization.

Publisher

Environmental Modelling & Software

Type of Resource

text

Language

en

Handle URL

https://hdl.handle.net/2142/114402

Permalink

https://hdl.handle.net/2142/114402

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