River Bends and Meanders

River Restoration and Meanders

Among the most visually striking river restoration projects are those that involve the creation of a new channel, often in a new alignment and generally with a form and dimensions that are different from those of the preproject channel. These channel reconstruction projects often have the objective of creating a stable, single-thread, meandering channel, even on rivers that were not historicall...

Estimators for anticipating river meanders: a comparative study

Increasingly, marine robots and unmanned surface vehicles will be deployed in rivers and riverine environments. The structure produced by flowing waters is worth investigating because it may be exploited for purposes of estimation, planning, and control. This report adopts a widely acknowledged model for the geometry of watercourse channels, namely sine-generated curves, as a basis for estimato...

Recognizing Meanders to Reconstruct River Dynamics of the Ganges

The long-term discharge evolution of branches of rivers can potentially be derived from inactive and fossil river meanders using relations between discharge and channel width and meander dimensions. This evolution is relevant for the understanding of river dynamics and avulsion, and the resulting changes of downstream flooding risks and shipping conveyance. Unfortunately, digitalisation of infi...

Meanders and Motzkin Words

Stamp Foldings, Semi-Meanders, and Open Meanders: Fast Generation Algorithms

By considering a permutation representation for stamp-foldings and semi-meanders we construct tree-like data structures that will allow us to generate these objects in constant amortized time. Additionally, by maintaining the wind-factor and applying an additional optimization, the algorithm for semi-meanders can be modified to produce the fastest known algorithm to generate open meanders.