Data

Hydrodynamic Model of the Ganges–Brahmaputra–Meghna (GBM) Delta

University of New South Wales
Kibriya, Numan Al ; Wang, Xiao Hua
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26190/unsworks/31941&rft.title=Hydrodynamic Model of the Ganges–Brahmaputra–Meghna (GBM) Delta&rft.identifier=https://doi.org/10.26190/unsworks/31941&rft.publisher=UNSW, Sydney&rft.description=This dataset contains the configuration files and simulation outputs of a high-resolution hydrodynamic model of the Ganges–Brahmaputra–Meghna (GBM) delta developed using Delft3D Flexible Mesh (FM). The dataset includes model setup files, grid-independence test results, calibration and validation outputs, and derived hydrodynamic analyses for six major estuarine channels. Data products comprise simulated water levels, tidal ranges, harmonic components (D1, D2, D4) obtained through complex demodulation, tidal phase information, and velocity-based asymmetry metrics including Peak Current Asymmetry (PCA) and Slack Water Asymmetry (SWA). The dataset supports analysis of tidal propagation, amplification and attenuation, and asymmetry dynamics across the GBM estuarine network. Observational data from the Bangladesh Water Development Board (BWDB) are not redistributed and must be obtained directly from BWDB.&rft.creator=Kibriya, Numan Al &rft.creator=Wang, Xiao Hua &rft.date=2026&rft.coverage=Bangladesh&rft.coverage=Eastern India&rft.coverage=Bay of Bengal&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_subject=Hydrodynamic modelling&rft_subject=Delft3D Flexible Mesh (FM)&rft_subject=GBM Delta&rft_subject=Estuarine hydrodynamics&rft_subject=Tidal asymmetry&rft_subject=Peak Current Asymmetry&rft_subject=Slack Water Asymmetry&rft_subject=Complex demodulation&rft_subject=Coastal hydrodynamics&rft_subject=Bangladesh&rft_subject=Geophysics&rft_subject=EARTH SCIENCES&rft_subject=Oceanography&rft_subject=Hydrodynamics and hydraulic engineering&rft_subject=Fluid mechanics and thermal engineering&rft_subject=ENGINEERING&rft_subject=ENVIRONMENTAL POLICY, CLIMATE CHANGE AND NATURAL HAZARDS&rft_subject=ENVIRONMENTAL MANAGEMENT&rft_subject=Coastal and estuarine systems and management&rft.type=dataset&rft.language=English Access the data
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This dataset contains the configuration files and simulation outputs of a high-resolution hydrodynamic model of the Ganges–Brahmaputra–Meghna (GBM) delta developed using Delft3D Flexible Mesh (FM). The dataset includes model setup files, grid-independence test results, calibration and validation outputs, and derived hydrodynamic analyses for six major estuarine channels. Data products comprise simulated water levels, tidal ranges, harmonic components (D1, D2, D4) obtained through complex demodulation, tidal phase information, and velocity-based asymmetry metrics including Peak Current Asymmetry (PCA) and Slack Water Asymmetry (SWA). The dataset supports analysis of tidal propagation, amplification and attenuation, and asymmetry dynamics across the GBM estuarine network. Observational data from the Bangladesh Water Development Board (BWDB) are not redistributed and must be obtained directly from BWDB.

Issued: 2026

Data time period: 2020 to 2021

Data time period: Model simulation period

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Spatial Coverage And Location

text: Bangladesh

text: Eastern India

text: Bay of Bengal

Subjects
Bangladesh | Coastal and Estuarine Systems and Management | Coastal hydrodynamics | Complex demodulation | Delft3D Flexible Mesh (FM) | Earth Sciences | Engineering | Environmental Management | Environmental Policy, Climate Change and Natural Hazards | Estuarine hydrodynamics | Fluid Mechanics and Thermal Engineering | GBM Delta | Geophysics | Hydrodynamic modelling | Hydrodynamics and Hydraulic Engineering | Oceanography | Peak Current Asymmetry | Slack Water Asymmetry | Tidal asymmetry |

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Identifiers
ACN 633 798 857