Framing the Challenge of Urban Flooding in the United States (2019) / Chapter Skim
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Appendix A: Trends Affecting Urban Flooding
Appendix A: Trends Affecting Urban Flooding
Pages 69-74
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From page 69... ...
All of these factors put a strain on storm water systems, many of which were designed for cities with smaller populations, more natural land, or less extreme rainfall events. POPULATION GROWTH Population growth projections can be used to gain a partial understanding of the metropolitan areas most likely to experience significant impacts from future urban flooding.
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From page 70... ...
INCREASED OCCUPANCY IN FLOOD PRONE AREAS Historical and current development in floodplains places more people and structures in harm's way, fragments natural drainage patterns, reduces the ability of areas to naturally store floodwaters, and changes the boundaries of the floodplains themselves. Up to 90 percent of floodplains in North America are considered heavily developed and functionally extinct (Tockner and Stanford, 2002)
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From page 71... ...
. Converting wetlands or other natural landscapes to impervious surfaces reduces infiltration of water into soil and increases surface runoff and flooding.
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From page 72... ...
Global mean sea level rose 0.19 meter from 1901 to 2010, and could rise another meter or more by 2100, depending on greenhouse gas emission trajectories (IPCC, 2013)
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From page 73... ...
(2017; top) and National Oceanic and Atmospheric Admisnistration National Centers for Environmental Information, North Carolina Institute for Climate Studies, and National Environmental Modeling and Analysis Center (bottom)
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