Change in Mean Sea Levels

Change in mean sea levels, in millimeters, are estimated based on measurements of sea level from satellite radar altimeters. Time-series information is presented from 1992-12-17 to 2025-02-18, with 3/4 data points for every month. The estimates are provided for 24 regions across the world, along with a global estimate. Source: National Oceanic and Atmospheric Administration (NOAA). 2020. Sea Level Rise. Laboratory for Satellite Altimetry. https://www.star.nesdis.noaa.gov/socd/lsa/SeaLevelRise/LSA_SLR_timeseries.php. Category: Climate and Weather Data series: Sea level: Jason.1 Sea level: Jason.2 Sea level: Jason.3 Sea level: TOPEX.Poseidon Sea level: Trend Metadata: Data is available since 1958 and are acquired from the National Oceanic and Atmospheric Association Global Monitoring Laboratory. Methodology: Estimates of sea level rise are based on measurements from satellite radar altimeters. Altimetry satellites basically determine the distance from the satellite to a target surface by measuring the satellite-to-surface round-trip time of a radar pulse. Plots and time series are available for TOPEX/Poseidon (T/P), Jason-1, Jason-2, and Jason-3, which have monitored the same ground track since 1992. Disclaimer: Users are encouraged to examine the documentation, metadata, and sources associated with the data. User feedback on the fit-for-use of this product and whether the various dimensions of the product are appropriate is welcome.