Data sets used in ECCO Version 4 Release 3

Abstract

The latest state estimate produced by the consortium for Estimating the Circulation and Climate of the Ocean (ECCO Version 4 Release 3 or V4R3 for short) is constrained by a variety of satellite and in situ ocean observations. Many of these data sets (e.g., satellite altimetry, sea surface temperature, in situ hydrography) are extensions of those used in earlier Version 4 releases described by Forget et al. (2015, 2016), but others (regional and global ocean mass from satellite gravity, satellite surface salinity, Arctic temperature and salinity profiles, sea-ice concentration, and global mean sea level) are newly introduced in V4R3. All data sets used in V4R3 are available with the solution output at ftp://ecco.jpl.nasa.gov/Version4/Release3/. A brief description of the data sets and the main processing applied to them is provided in this document, to complement full details of the V4R3 estimate discussed in Fukumori et al. (2017).