TY - JOUR
T1 - Modelling mangrove-mudflat dynamics with a coupled individual-based-hydro-morphodynamic model
AU - Beselly, S. M.
AU - Grueters, U.
AU - van Der Wegen, M.
AU - Reyns, J.
AU - Dijkstra, J.
AU - Roelvink, D.
PY - 2023
Y1 - 2023
N2 - As climate-change-driven extremes potentially make coastal areas more vulnerable, mangroves can help sustainably protect the coasts. There is a substantial understanding of both mangrove dynamics and hydro-morphodynamic processes. However, the knowledge of complex eco-geomorphic interactions with physical-environmental stressors remains lacking. We introduce a novel coupled modelling approach consisting of an individual-based mangrove (mesoFON) and a process-based hydromorphodynamic model (Delft3D-FM). This coupled model is unique because it resolves spatiotemporal processes, including tidal, seasonal, and decadal environmental changes (water level, flow, sediment availability, and salinity) with full life-stages (propagule, seedling, sapling, mature) mangrove interaction. It allows us to mechanistically simulate forest expansion, retreat, and colonisation influenced by and with feedback on physical-environmental drivers. The model is applied in a schematized mixed fluvial-tidal deltaic mangrove forest in dominantly muddy sediment inspired by the prograding delta of Porong, Indonesia. Model results successfully reproduce observed mangrove extent development, age-height relationship, and morphodynamic delta features.
AB - As climate-change-driven extremes potentially make coastal areas more vulnerable, mangroves can help sustainably protect the coasts. There is a substantial understanding of both mangrove dynamics and hydro-morphodynamic processes. However, the knowledge of complex eco-geomorphic interactions with physical-environmental stressors remains lacking. We introduce a novel coupled modelling approach consisting of an individual-based mangrove (mesoFON) and a process-based hydromorphodynamic model (Delft3D-FM). This coupled model is unique because it resolves spatiotemporal processes, including tidal, seasonal, and decadal environmental changes (water level, flow, sediment availability, and salinity) with full life-stages (propagule, seedling, sapling, mature) mangrove interaction. It allows us to mechanistically simulate forest expansion, retreat, and colonisation influenced by and with feedback on physical-environmental drivers. The model is applied in a schematized mixed fluvial-tidal deltaic mangrove forest in dominantly muddy sediment inspired by the prograding delta of Porong, Indonesia. Model results successfully reproduce observed mangrove extent development, age-height relationship, and morphodynamic delta features.
KW - Delft3D-FM
KW - Eco-geomorphology
KW - Individual-based mangrove model
KW - Mangrove dynamics
KW - Mangrove modelling
KW - Mangrove-hydromorphodynamic model
KW - Sediment dynamics
UR - http://www.scopus.com/inward/record.url?scp=85169589436&partnerID=8YFLogxK
U2 - 10.1016/j.envsoft.2023.105814
DO - 10.1016/j.envsoft.2023.105814
M3 - Article
AN - SCOPUS:85169589436
SN - 1364-8152
VL - 169
JO - Environmental Modelling and Software
JF - Environmental Modelling and Software
M1 - 105814
ER -