Earth and Planetary Sciences
3 years ago

Rapid Ebro Delta expansion driven by human activity, not natural forces.

Large-scale coastal and fluvial models constrain the late Holocene evolution of the Ebro delta, Spain
Jaap H. Nienhuis, Andrew D. Ashton, Albert J. Kettner, Liviu Giosan

Paper Summary

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The Ebro Delta in Spain has changed a lot over the past 2100 years. By using models, scientists found that the delta grew rapidly due to a big increase in sediment from the river, not from changes in waves. This increase in sediment was likely caused by more flooding and erosion upstream. These changes suggest that human activities and climate change have influenced the delta's evolution. This study shows how simple models can help us understand how deltas change over time and what might happen in the future.