A percolation transition for Scheidegger river networks (2026)
Coupling Scheidegger's random-walk drainage network to a minimal rainfall-and-storage rule yields a directed spanning transition: whether overflow links a basin from its headwaters to the sea is a percolation problem, with a critical curve in the rainfall–storage plane. In revision at Physica A.
Bulk-Dissipative Sandpile (2026)
A Bak–Tang–Wiesenfeld sandpile where toppled grains leave the system entirely instead of being distributed to neighbors, a discrete-grain analog of detachment-limited erosion.
Meander Drift (2026)
Asymmetric meander migration produces a systematic along-valley drift of river-seeking agents on the floodplain. The drift direction is set by the curvature-migration phase lag.
Human-River Geomorphic Coupling (2026)
A cellular automaton model of how settlements and meandering rivers co-evolve: people cluster near rivers for economic benefit while the river erodes what is built beside it.
Meander Cutoffs Induce Chaos (2025)
We show that neck cutoffs alone are sufficient to produce chaotic dynamics in kinematic river channel evolution, imposing a finite predictability horizon on planform modeling. Submitted to Communications Earth & Environment.