The two-decade Argo array has been the most successful ocean observation network in the 21st century. Nearly 4,000 profiling floats, covering the ice-free oceans, have sustained continuous observations of temperature and salinity from the sea surface to 2,000 m and provided unprecedented data distributed in the global ocean (Roemmich, Alford, et al., 2019). Over 2 million profiles of upper ocean measurements have significantly broadened our scopes of multiscale oceanic processes (
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