FN Archimer Export Format PT J TI Geophysical flows under location uncertainty, Part I Random transport and general models BT AF RESSEGUIER, Valentin MEMIN, E. CHAPRON, Bertrand AS 1:1,2;2:1;3:2; FF 1:PDG-ODE-LOPS-SIAM;2:;3:PDG-ODE-LOPS-SIAM; C1 Irstea, IRMAR, Inria, Fluminance Grp, Rennes, France. IFREMER, LOPS, Plouzane, France. C2 INRIA, FRANCE IFREMER, FRANCE SI BREST SE PDG-ODE-LOPS-SIAM UM LOPS IN WOS Ifremer jusqu'en 2018 copubli-france IF 1.417 TC 49 UR https://archimer.ifremer.fr/doc/00385/49598/51086.pdf LA English DT Article DE ;Stochastic flows;uncertainty quantification;ensemble forecasts;upper ocean dynamics AB A stochastic flow representation is considered with the Eulerian velocity decomposed between a smooth large scale component and a rough small-scale turbulent component. The latter is specified as a random field uncorrelated in time. Subsequently, the material derivative is modified and leads to a stochastic version of the material derivative to include a drift correction, an inhomogeneous and anisotropic diffusion, and a multiplicative noise. As derived, this stochastic transport exhibits a remarkable energy conservation property for any realizations. As demonstrated, this pivotal operator further provides elegant means to derive stochastic formulations of classical representations of geophysical flow dynamics. PY 2017 SO Geophysical And Astrophysical Fluid Dynamics SN 0309-1929 PU Taylor & Francis Ltd VL 111 IS 3 UT 000401010100001 BP 149 EP 176 DI 10.1080/03091929.2017.1310210 ID 49598 ER EF