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Process-based support for supply limitations on the aeolian erosion probability : From AeoLiS to DUBEVEG

Flores Ramírez, L.A. (2020) Process-based support for supply limitations on the aeolian erosion probability : From AeoLiS to DUBEVEG.

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Abstract:Coastal dunes are the �rst ood defense in line against the sea (Keijsers et al., 2016), are used for recreation, provide drinking water storage and form an ecological niche in which plants are adapted to extreme conditions (Nordstrom and Puleo, 2012). The wind is the main driver for dune development, which acts through aeolian sediment transport. However, wind-driven sediment transport has been shown to reach limiting conditions due to sediment properties, moisture and beach geometry (de Vries et al., 2012). Therefore, Hoonhout and Vries (2016) developed AeoLiS: a process-based model which simulates aeolian sediment transport and includes the in uence of soil moisture and beach armouring as supply-limited conditions. Nevertheless, AeoLiS is not capable of simulating long-term morphological development with reasonable computational de- mand. On the other hand, DUBEVEG (Keijsers et al., 2016) is a probabilistic cellular automata model which simulates the morphological evolution of a beach-dune system. However, it does not account explicitly for supply-limited conditions. This thesis was developed to give the probability of erosion "Pe" in DUBEVEG (one of the key parameters in the model) a process-based support to include soil moisture and beach armouring as supply-limited conditions, from AeoLiS.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Programme:Civil Engineering and Management MSc (60026)
Link to this item:http://purl.utwente.nl/essays/81349
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