Figure : figure-25-4a-sea-level

Sea Level Rise

Figure 25.5

National Oceanic and Atmospheric Administration
James D. Scott

This figure appears in chapter 25 of the Impacts, Risks, and Adaptation in the United States: The Fourth National Climate Assessment, Volume II report.

Sea level rise increases risks to infrastructure. At the Golden Gate Bridge in San Francisco, California, the tidal gauge with the longest time series in the Western Hemisphere shows that sea level has risen nearly 9 inches (22 cm) since 1854 (blue line).8e1ab38d-5d31-4a6a-8ad6-e06fe74a4aa1,2ecc5a9e-ee7b-4387-ac16-d30785aab28c In 1897, the tidal gauge was moved, which caused a slight shift downward of the numerical level but no change in the long-term trend (trends indicated by the black lines). The bars show models projections of sea levels under a higher scenario (RCP8.5; red) and a very low scenario (RCP2.6; green).a1aee4ba-d4fc-4f92-a74a-e37189c138b5 The change in sea level is shown relative to the 1991–2009 average. Source: National Park Service.

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The time range for this figure is July 01, 1854 (00:00 AM) to December 31, 2100 (00:00 AM).

This figure was created on August 10, 2017.

This figure was submitted on December 03, 2018.

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