The World Climate Research Programme's ocean observations community has contributed a commentary to Nature Climate Change warning that the ocean observing system is showing signs of degradation. The observing system that has been built up over the past several decades has made possible an unprecedented database of ocean observations. This has enabled scientists for the first time to measure deep ocean heat content, which is a critical part of the global energy budget, as well as pan-oceanic salinity, which is a critical part of the global water budget. Unfortunately, just as this observing system has started to generate this invaluable data it is starting to suffer from a lack of new investment.
In the commentary, Paul Durack and co-leaders in the ocean observation community report the hard-won successes of the Argo and GO-SHIP systems and their contribution to scientists understanding and monitoring of the global energy and global water budgets. See also the WCRP website.