This document is the user manual of the Sea Level REProcessed In Situ product, INSITU_GLO_PHY_SSH_DISCRETE_MY_013_053, distributed by the Copernicus Marine Service In Situ Thematic Assembly Centre (In Situ TAC). It contains a description of the product, including how it is built, datasets, available data access services, and instructions for use of files and services.

The Sea Level REP product is a global product that provides the best available version of in-situ historical sea level observations, reprocessed and validated in delayed mode at centralized level by the Production Centre. This is required for assessment of operational models and reanalysis, and for use by the research community. It integrates the in-situ sea level observations, mainly from tide gauges providing coastal sea level, aggregated from the Regional EuroGOOS consortium (Arctic-ROOS, BOOS, NOOS, IBIROOS, MONGOOS and Black Sea GOOS), National Data Centers (NODC’s), Hydrographic Offices or Metoffices, the Global Sea Level Observing System (GLOSS) and EMODnet Physics. The Copernicus Marine Service is not contributing to the maintenance and setting up of the observing systems it uses. The complete list of variables distributed by the In Situ TAC can be found in the Copernicus Marine In Situ TAC physical parameters list (https://doi.org/10.13155/53381).

The product is updated twice a year after a delayed mode quality control and processing which includes visualization, computation of non-tidal residuals and hourly data, and check of datum stability by means of neighbour test or buddy-checking. Details are provided in the Quality Information Document (QuID) CMEMS-INS-QUID-013_053.

Sea level data are available at the dedicated directory for sea level INSITU_GLO_PHY_SSH_DISCRETE_MY_013_053 of Copernicus Marine Service Dissemination System. It includes three different datasets: the first one contains the diverse original time sampling data available at the In Situ TAC NRT, which vary from 1-min to 1 hour, with updated quality control flags; a second one contains the homogeneous hourly data timeseries, validated and filtered from higher frequency observations, when available; and the third one contains an hourly dataset including astronomical tide and surge/non-tidal residuals for the IBI region. More detailed information can be obtained from the Copernicus Marine Service Copernicus Marine Service web page (https://marine.copernicus.eu/), and the In Situ TAC web page (http://www.marineinsitu.eu/).

Information on operational issues on products and services can be found on our User Notification Service. If you have any questions, please contact us.