Storm Surge Return Level Estimates for the Bengal Delta at 250-Meter Resolution

A dataset of probabilistic storm surge water level estimates for the Bengal delta coastline, spanning Bangladesh and India, at return periods from 25 to 500 years. It was generated by Md Jamal Uddin Khan of the Centre National de la Recherche Scientifique using a coupled hydrodynamic model forced by an ensemble of approximately 3600 synthetic cyclones. The data provides high-resolution (250 meters at the coast) estimates of maximum water elevation from dynamically modeled tide, surge, and wave interactions.

Use Cases

• Assess coastal flood risk based on high-resolution storm surge water level estimates.
• Validate or compare hydrodynamic models using the results from a coupled SCHISM-WWM framework.
• Plan coastal infrastructure and defense strategies based on water levels for various return periods.
• Study the impact of tropical cyclone variability on flooding using a large synthetic storm ensemble.

Strengths

• Covers a large ensemble of approximately 3600 synthetic cyclones representing ~5000 years of storm activity.
• Provides high-resolution storm surge water level estimates at 250-meter resolution along the coast.
• Explicitly models the interactions among tide, surge, and waves using a coupled hydrodynamic framework.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Centre National de la Recherche Scientifique

Collection Method

Generated by integrating a wave-coupled hydrodynamic model with a large ensemble of synthetic cyclones produced via a statistical-deterministic method.

Geography

Bengal delta shoreline, spanning Bangladesh and India