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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Hydro-environment : Three-dimensional arabian gulf hydro-environmental modeling using delft3d
Three-dimensional arabian gulf hydro-environmental modeling using delft3d
Author : TANUSPONG POKAVANICH(1), YOUSEF ALOSAIRI(2), REIMER DE GRAAFF(3), ROBIN MORELISSEN(4), WILBERT VERBRUGGEN(5),
ABSTRACT
A three-dimensional Hydro-Environmental model of the Arabian Gulf (AG) was developed based on Delft3D-FLOW and
Delft3D-WAQ model. The developed models were forced by realistic forcing boundary conditions includes validated set
of tidal constituents developed by Deltares, The Netherland, temporal and spatial variable wind and meteorological data
from ECMWF ERA-Interim, temporal varying water temperature and salinity profiles from MyOcean model and temporal
river discharge data. The model was validated against field measurement data offshore of Kuwait. The developed model
could reproduce overall hydrodynamic and water quality features of the AG realistically in three-dimension. Simulation
results suggested strong zonal and seasonal variability of the hydrodynamic and water quality conditions. Waters at the
northwestern part of the gulf were heavier and the density gradient along the bay's longitudinal axis was stronger in
winter compared to summer. This features contribute to enhance density-driven circulation and interactions between the
northwestern part and the central part of the gulf. Simulated dissolved oxygen showed clear seasonal trend having
overall higher dissolved oxygen in winter compared to summer. At the summer dissolved oxygen at shallow regions at
the northwestern and along the Arabian coast were low ( < 5 mg/l). Simulated nutrient concentrations suggested that
nitrogen might be a limiting factor for phytoplankton growth of the gulf. Simulated chlorophyll-a concentration showed
overall year-round low concentration (low phytoplankton abundance) at most part of the gulf except the river mouths and
near the Strait of Hormuz regions. The model produced AG-scale phytoplankton blooms during spring season when
significant higher chlorophyll-a concentrations were simulated.
File Size : 4,493,736 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Hydro-environment
Date Published : 19/08/2015
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