@dodders75 @AtomsksSanakan @hausfath @ncdave4life Considerable data, John Pls check key early papers Levitus et al Science 287:2225-2229 2000 Levitus et al Geophys Res Lett v32 L02604 2005 Ishii et al Monthly Weather Rev 131:51-73 2003 then see data reviews https://t.co/N8XggURmCF https://t.co/m6YHzfLkVz

@Lijing_Cheng Wow - insight into evolution of not just coverage, but technologies employed! Is Figure 2a of Ishii et al SOLA 13:163-167 2017 still "current" with these figures of yours (to me it is a good plot combining depth and coverage)? https://t.co/N8XggURmCF