Findings are published in Reviews of Geophysics and reported with collaboration across international partners and industry players.

Aims to combine strengths of different model types to create hybrid frameworks that improve realism and predictive performance.

The article envisions a future of interconnected flood models across physics-based, data-driven, observational, and conceptual paradigms to advance risk assessment and response amid climate change and urban growth.

Authors caution against over-reliance on single-method, data-driven models and advocate integrating computational power with physically informed, hybrid models for better forecasts.

A central challenge is balancing computational efficiency, flexibility, and physical realism, which has led to fragmented progress across disciplines.

The push is toward scalable, transparent, and implementable models where high-performance computing removes bottlenecks without compromising essential physical constraints.

The study appears in Reviews of Geophysics under the title Synergistic Integration of Flood Inundation Modeling Methods, published on March 9, 2026.

Newer data-driven approaches are efficient but limited for operational forecasting and design use due to insufficient physical grounding.

The study argues that high-performance computing should be used to support integrated flood inundation modeling, rather than expanding simplified data-driven approaches in isolation, to improve accuracy and reliability.

Four future directions are proposed: hybrid modeling frameworks, enhanced physical representation, integration of data-based methods with physics-based models, and closer bridging of science to practical policy and infrastructure use.

Flood models are categorized into physics-based, data-driven, observational/experimental, and conceptual types; data-driven methods are easier to implement but often lack robust physical constraints and generalizability.

Integrating diverse modeling methods can improve predictions and decision-making across infrastructure design, emergency response, land-use planning, insurance, water quality, and public safety.