Figure : sea-level

Observed and Projected Sea Level Rise

Figure 20.6

Government of Puerto Rico Department of Natural and Environmental Resources Coastal Zone Management Program, National Oceanic and Atmospheric Administration National Ocean Service, The University of Arizona Center for Climate Adaptation Science and Solutions
William V. Sweet, Amanda J. Leinberger, Vanessa I. Marrero-Santiago

This figure appears in chapter 20 of the Impacts, Risks, and Adaptation in the United States: The Fourth National Climate Assessment, Volume II report.

(top) Observed sea level rise trends in Puerto Rico and the U.S. Virgin Islands reflect an increase in sea level of about 0.08 inches (2.0 mm) per year for the period 1962–2017 for Puerto Rico and for 1975–2017 for the U.S. Virgin Islands. The bottom panels show a closer look at more recent trends from 2000 to 2017 that measure a rise in sea level of about 0.24 inches (6.0 mm) per year. Projections of sea level rise are shown under three different scenarios of Intermediate-Low (1–2 feet), Intermediate (3–4 feet), and Extreme (9–11 feet) sea level rise. The scenarios depict the range of future sea level rise based on factors such as global greenhouse gas emissions and the loss of glaciers and ice sheets. Sources: NOAA NCEI and CICS-NC.

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This figure was created on June 05, 2017.

This figure was submitted on December 06, 2018.


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