Penny, Stephen G.; Akella, Santha; Balmaseda, Magdalena A.; Browne, Philip; Carton, James A.; Chevallier, Matthieu; Counillon, Francois; Domingues, Catia ORCID: https://orcid.org/0000-0001-5100-4595; Frolov, Sergey; Heimbach, Patrick; Hogan, Patrick; Hoteit, Ibrahim; Iovino, Doroteaciro; Laloyaux, Patrick; Martin, Matthew J.; Masina, Simona; Moore, Andrew M.; de Rosnay, Patricia; Schepers, Dinand; Sloyan, Bernadette M.; Storto, Andrea; Subramanian, Aneesh; Nam, SungHyun; Vitart, Frederic; Yang, Chunxue; Fujii, Yosuke; Zuo, Hao; O’Kane, Terry; Sandery, Paul; Moore, Thomas; Chapman, Christopher C. 2019 Observational needs for improving ocean and coupled reanalysis, S2S prediction, and decadal prediction. Frontiers in Marine Science, 6. https://doi.org/10.3389/fmars.2019.00391