Geometry and Topology of Estuary and Braided River Channel Networks Automatically Extracted From Topographic Data.

ABSTRACT: Automatic extraction of channel networks from topography in systems with multiple interconnected channels, like braided rivers and estuaries, remains a major challenge in hydrology and geomorphology. Representing channelized systems as networks provides a mathematical framework for analyzing transport and geomorphology. In this paper, we introduce a mathematically rigorous methodology and software for extracting channel network topology and geometry from digital elevation models (DEMs) and analyze such channel networks in estuaries and braided rivers. Channels are represented as network links, while channel confluences and bifurcations are represented as network nodes. We analyze and compare DEMs from the field and those generated by numerical modeling. We use a metric called the volume pa

SUBMITTER: Hiatt M 

PROVIDER: S-EPMC7375137 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature