Geovisualization geoscience of large river floodplains

Autor: Joann Mossa, Yin-Hsuen Chen, Chia-Yu Wu
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Maps, Vol 15, Iss 3, Pp 75-91 (2019)
Druh dokumentu: article
ISSN: 1744-5647
17445647
DOI: 10.1080/17445647.2019.1584129
Popis: Alluvial river landscapes of the lower Mississippi and Atchafalaya rivers in the south-central USA are flood prone and have shifted historically in position and form, resulting in interventions for flood reduction, navigation, and water supply. Fisk mapped these landscapes in the middle of the twentieth century as a series of artistic colourful map plates. Selected areas are revisited with modern data sets (LiDAR from 2003, hydrographic surveys from 2006 and 2007) including two sites along the Mississippi River (near the Old River juncture and near Morganza Floodway) and one in the middle Atchafalaya River. By using 2D and 3D geovisualization, we find that the extent, variety, and dimensions of anthropogenic landforms have grown in prominence since Fisk’s mapping. The volumes of the highest positive landforms are quantified to provide some indication of direct and indirect anthropogenic activity in these landscapes.
Databáze: Directory of Open Access Journals
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