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NPCC4: Climate change and New York City's flood risk
Bernice Rosenzweig1, Franco A Montalto2,3, Philip Orton4
1Environmental Science, Sarah Lawrence College, Bronxville, New York, USA.
Annals of the New York Academy of Sciences
|August 19, 2024
Summary
New York City faces multiple flood hazards including pluvial, fluvial, coastal, and groundwater. This report details these risks and their management, considering climate change impacts on natural systems.
Area of Science:
- Climate Science
- Environmental Science
- Urban Planning
Background:
- Previous reports focused on coastal flooding and climate impacts on infrastructure.
- A comprehensive assessment of all flood hazard types in NYC was lacking.
- Impacts on natural and nature-based systems (NNBSs) were not previously reviewed.
Purpose of the Study:
- To comprehensively describe all flood hazard types in NYC: pluvial, fluvial, coastal, groundwater, and compound.
- To provide climatological context for flood risk management (FRM).
- To review impacts on natural and nature-based systems (NNBSs) and nonstructural measures.
Main Methods:
- Compilation and synthesis of existing research on NYC flood hazards.
- Description of historical flood events for each hazard type.
- Review of exposure, vulnerability, and risk management strategies.
Main Results:
- Detailed profiling of pluvial, fluvial, coastal, groundwater, and compound flood hazards.
- Integration of climatological context with climate change projections for FRM.
- Identification of impacts on natural and nature-based systems (NNBSs).
Conclusions:
- This report offers the first comprehensive assessment of all flood drivers in NYC.
- Findings support enhanced flood risk management strategies, including NNBSs.
- Understanding diverse flood hazards is crucial for NYC's climate resilience.
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