Watershed Analysis and Risk Assessment Using Global Mapper

Autori

  • Jenna Nelson Training and Outreach Coordinator | Blue Marble Geographics

Parole chiave:

GIS, global mapper, watershed analysis, environmental risk, infrastructure, land use, COAST

Abstract

Watershed analysis provides critical insights into the natural flow of water across landscapes, helping to
identify environmental risks and inform land-use and infrastructure planning. This paper explores how
Global Mapper®, a geographic information system (GIS) tool, can be used to delineate watersheds, analyze
topographic boundaries, and assess environmental threats such as landfill contamination. Through a
case study of the Tennessee Region watershed, the paper demonstrates how spatial operations, watershed
generation tools, and terrain analysis can support data-driven watershed management and risk mitigation.
The paper also presents COAST, an extension of Global Mapper developed for coastal adaptation
planning, as an advanced implementation that enhances watershed and coastal flood risk analysis through
economic impact modeling.

Biografia autore

Jenna Nelson, Training and Outreach Coordinator | Blue Marble Geographics



Riferimenti bibliografici

“Principles of Watershed Management.” Watershed Academy Web Environmental Protection Agency,

cfpub.epa.gov/watertrain/moduleFrame.cfm?parent_object_id=490. Wilson, Reid. “Map: The United

States of Watersheds.” The Washington Post, WP Company, 23 Apr. 2013, washingtonpost.com/blogs/

govbeat/wp/2013/11/19/map-the-united-states-of-watersheds/.

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Pubblicato

2025-10-14

Come citare

Nelson, J. (2025). Watershed Analysis and Risk Assessment Using Global Mapper. GEOmedia, 29(3). Recuperato da https://mediageo.it/ojs/index.php/GEOmedia/article/view/2106

Fascicolo

Sezione

REPORT