Data associated with Ragen, Pradal and Gnanadesikan, "Impact of parameterized lateral mixing on the transport of the Antarctic Circumpolar Current in a coupled climate model"

• Main Authors: Gnanadesikan, Anand, Pradal, Marie-Aude, Ragen, Sarah
• Language: English
• Published: Johns Hopkins Research Data Repository 2020
• Subjects: Earth and Environmental Sciences; Antarctic Circumpolar Current; oceanography; climate model; isopycnal mixing; parameterization; Antarctic; The Antarctic; Antarc*
• Online Access: https://doi.org/10.7281/T1/IJO1FU

Contains annually averaged netCDF files of the ocean output used in this paper to examine the interaction between the lateral mixing coefficient ARedi and the strength of the Circumpolar Current. Paper demonstrates that increasing ARedi causes the current to weaken. This is a surprising result given that this coefficient does not, by itself, produce large changes in density as it mixes temperature and salinity along density surfaces. However, changes in convection and surface temperatures produce changes in winds that do produce a much larger change in the density structure which is then reflected in the Circumpolar Current strength. Uncertainty in the mixing coefficient can explain a small fraction of the differences in Circumpolar Current transport seen in contemporary climate models. Files show averages of a number of key variables averaged over last century of simulation.