Functional Geomorphology

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The Festschrift papers explore landform analysis and modeling, reflecting Frank Ahnert’s research interests and contributions. Two studies focus on soil erosion: one examines the short-term evolution of gully microsteps and scour channels, while the other investigates long-term badland formation using an established erosional susceptibility model. Yair discusses climatic change effects at the desert fringe, revealing that a wetter climate doesn't always lead to a more humid environment. Jungerius and Schoonderbeek analyze blowout development in coastal dunes, highlighting the lack of attention to mass movements in badland slope profile evolution. De Lugt & Campbell emphasize mass movement processes in slope development within Alberta's Dinosaur Provincial Park. In fluvial geomorphology, Seidl & Dietrich focus on vertical erosion in bedrock channels, contrasting with the predominant study of alluvial channels. Olav Slaymaker reconciles Ahnert’s process-response models with sediment storage in the Canadian Cordillera, noting Ahnert's lack of emphasis on fluvial systems influenced by glacial heritage. Schmidt’s contribution illustrates that changes in system conditions can occur without external climatic or tectonic variations, supported by Gilbert’s dynamic equilibrium concept. Ergenzinger & Schmidt utilize a soil erosion model for long-term slope evolution, inspired by Ahnert’s process-response models. Kirkby presents an erosio