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Published (Version of record)CC BY-NC-ND V4.0, Open Access
Published (Version of record)CC BY-NC-ND V4.0, Open
Journal article
Interacting Effects of Watershed and Coastal Processes on the Evolution of Compound Flooding During Hurricane Irene
Earth's future, Vol.11(3), pp.1-23
22/03/2023
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Source: InCites
Abstract
In low‐lying estuarine regions, compound flooding (CF) is caused by the co‐occurrence of extreme precipitation, river flooding and storm surge. In recent decades, there has been a rise in the frequency and intensity of pluvial‐coastal CF events in different parts of the U.S. due to the increased frequency of intense precipitation and storm surge events. However, in estuarine and deltaic regions, the CF characteristics depend mainly on the storm tide and river flow interaction. Understanding how the fluvial‐coastal CF may respond to changes to watershed and estuarine characteristics is essential for future CF hazard prediction. This study examined two critical processes: (a) the interplay between antecedent soil moisture conditions and peak river flow, and (b) how the impact of sea level rise (SLR) on storm surge and river flood distribution alters the CF in complex estuaries. As the study area, we selected the Delaware Bay and River, a shallow and convergent estuary in the US Mid‐Atlantic region—where flood hazards during a CF can become more significant than the surge and river flood processes occurring in isolation. For the focal event for the study, we selected Hurricane Irene (2011) because it reportedly produced the most extreme CF over the past two decades in the same region. Ultimately, our results illustrated that the potential changes to the catchment and bay characteristics from the global temperature increase and SLR could significantly modulate the fluvial‐coastal CF variability. The potential increase in global temperature and rainfall intensity might not always exacerbate the CF.
Details
- Title
- Interacting Effects of Watershed and Coastal Processes on the Evolution of Compound Flooding During Hurricane Irene
- Creators
- Mithun Deb - Pacific Northwest National Laboratory, Marine and Coastal Research Laboratory (Sequim, Washington)Ning Sun - Pacific Northwest National LaboratoryZhaoqing Yang - Pacific Northwest National Laboratory, Marine and Coastal Research Laboratory (Sequim, Washington)Taiping Wang - Pacific Northwest National Laboratory, Marine and Coastal Research Laboratory (Sequim, Washington)David Judi - Pacific Northwest National LaboratoryZiyu Xiao - CSIRO Oceans and AtmosphereMark S. Wigmosta - Pacific Northwest National Laboratory
- Publication Details
- Earth's future, Vol.11(3), pp.1-23
- Publisher
- John Wiley & Sons Ltd.
- Number of pages
- 23
- Grant note
- This work was supported by the MultiSector Dynamics area of the United States Department of Energy, Office of Science, Office of Biological and Environmental Research as part of the multi-program, collaborative Integrated Coastal Modeling (ICoM) project
- Identifiers
- 991013253460002368
- Copyright
- © 2023 Commonwealth of Australia and Battelle Memorial Institute.
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article