Sea Level Trends

This map is part of Indicators of the Planet.  Please see https://livingatlas.arcgis.com/indicatorsThe sea level trends as measured by tide gauges that are presented here are relative sea level (RSL) trends at the coastline as opposed to the global average sea level trend. Tide gauge measurements are made with respect to a local fixed reference on land. RSL change is a combination of the global sea level rise and the local vertical land motion.   A negative RSL trend does not mean that the ocean is not rising.  Instead, it indicates that the land is rising even faster then the ocean.The Center for Operational Oceanographic Products and Services (CO-OPS) has been measuring sea level for over 150 years, with tide stations of the National Water Level Observation Network operating on all US coasts. The information shown is also available on the CO-OPS website. https://tidesandcurrents.noaa.gov/sltrends/sltrends.htmlThe data is also available from the CO-OPS Derived Product API:https://tidesandcurrents.noaa.gov/dpapi/latest/