Having access to high-quality sea-level measurements worldwide is vital for many oceanographic and coastal applications. The overall aim of the GESLA (Global Extreme Sea Level Analysis) project is to assemble as many higher-frequency (i.e. hourly or more frequent) sea level records as are readily available into a common format with consistent quality control flags to make it easier for researchers to maximize geographic density of data capturing tides, storm surges, extreme sea levels and other related processes on a global scale. GESLA is an official GLOSS (Global Sea Level Observing System) dataset.

About: The GESLA project grew out of the interests of several people in learning more about the changes in the frequency and magnitude of extreme sea levels. Read more here.

Assembly: We obtained the sea level dataset for GESLA-3 from 36 data providers. A description of how the GESLA dataset has been complied and processed is given here.

Downloads: The current version of the database is Version 3.0. GESLA-3 contains 90,713 years of sea level data from 5,119 records. The data can be downloaded here

Bibliography: Many studies have used the GESLA dataset since 2009. A list of all the papers and reports we are aware of is given here.

Team: Meet the people responsible for assembling the GESLA dataset here.

Contact: Please contact us if you have any questions, identify any issues, or have details of additional sea-level records we could include. Contact details are here.