Validation of braided-stream models: Spatial state-space plots, self-affine scaling, and island shapes
We present a comprehensive approach for validating braided-stream models and apply it to a specific cellular braided-stream model. The approach involves quantitative comparison of modeled and natural braided streams in terms of two main aspects: the sequential organization of their plan patterns studied using their state-space characteristics and the hierarchical organization of their patterns studied in the framework of self-affine scaling. These two aspects of braided streams are complementary to each other and taken together provide a sensitive test of the validity of a model of braided streams. The simple model we examine produces patterns that are similar to those of natural braided rivers in terms of both sequential organization and self-affine scaling. This finding supports the conclusion that the nonlinear interactions between water and sediment in the model are the primary mechanisms responsible for shaping braided rivers in nature.
Duke Scholars
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Related Subject Headings
- Environmental Engineering
- 4011 Environmental engineering
- 4005 Civil engineering
- 3707 Hydrology
- 0907 Environmental Engineering
- 0905 Civil Engineering
- 0406 Physical Geography and Environmental Geoscience
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Environmental Engineering
- 4011 Environmental engineering
- 4005 Civil engineering
- 3707 Hydrology
- 0907 Environmental Engineering
- 0905 Civil Engineering
- 0406 Physical Geography and Environmental Geoscience