Flooding of US and Local Southern California Facilities by 2100 in Low and High Sea Level Rise Scenarios

In the High sea level rise projections for the US for the year 2100 of flooding on average of twice a year, 1,600 facilities would be affected nationwide.  Some are on the West Coast, but most are on the East Coast and the Gulf of Mexico, with Florida especially accented.  These estimates do not seem to include inland flooding which is also enhanced by climate change.

The graphs and infrastructure maps are from Kristy Dahl, Principal Climate Scientist for the Union of Concerned Scientists.

We begin with the projections for Low and High sea level rise scenarios, and their correlation with projections for global temperature rises by 2100.

Critical infrastructure hit by twice a year flooding by 2050 in the Intermediate scenario for the United States is shown below:

Maps for infrastructure flooded at least twice a year by 2100 is shown for Low and High Scenarios below.

Low Sea Level Rise Scenario:

High Sea Level Rise Scenario:

I have about a five year old Flickr album of sea level rise in the local Newport Bay and other sensitive areas in the US.

Flooding for a two foot rise:

Flooding for a four foot rise:

Flooding for a six foot rise:

Unfortunately, if there is a high rainfall like an atmospheric river coming down the river into the bay at a time of high tide, they add and produce greater flooding.

About Dennis SILVERMAN

I am a retired Professor of Physics and Astronomy at U C Irvine. For two decades I have been active in learning about energy and the environment, and in reporting on those topics for a decade. For the last four years I have added science policy. Lately, I have been reporting on the Covid-19 pandemic of our times.
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