Mode and Intermediate Waters in Earth System Models

Technical Report · Tue Dec 22 00:00:00 EST 2015

DOI:https://doi.org/10.2172/1233183· OSTI ID:1233183

Gnanadesikan, Anand ^[1]; Sarmiento, Jorge L. ^[2]

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1. Johns Hopkins Univ., Baltimore, MD (United States)
2. Princeton Univ., NJ (United States)

This report describes work done as part of a joint Princeton-Johns Hopkins project to look at the impact of mode and intermediate waters in Earth System Models. The Johns Hopkins portion of this work focussed on the role of lateral mixing in ventilating such waters, with important implications for hypoxia, the uptake of anthropogenic carbon, the dynamics of El Nino and carbon pumps. The Johns Hopkins group also collaborated with the Princeton Group to help develop a watermass diagnostics framework.

• Research Organization: Johns Hopkins Univ., Baltimore, MD (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER)
• DOE Contract Number: SC0007066
• OSTI ID: 1233183
• Report Number(s): DOE-JOHNSHOPKINS-7066; 4105160722
• Resource Relation: Related Information: Galbraith E. D., J. P. Dunne, A. Gnanadesikan, R. D. Slater, J. L. Sarmiento, C. O. Dufour, G. F. de Souza, D. Bianchi, M. Claret, K. B. Rodgers, S. S. Marvasti, Complex functionality with minimal computation: promise and pitfalls of reduced-tracer ocean biogeochemistry models. Journal of Advances in Modeling Earth Systems, in press.Gnanadesikan, A., D. Bianchi and M.-A. Pradal, Critical role of mesoscale eddy diffusion for supplying oxygen to hypoxic ocean waters, Geophys. Res. Lett.,40, 5168-5174 doi:10.1029/2013GL057674, 2013.Gnanadesikan, A., J.P. Dunne and R. Msadek, Connecting Atlantic Temperature Variability and Biological Cycling in two Earth System Models, J. Mar. Sys.,133, 39-54, 2014.Gnanadesikan, A., M.A. Pradal and R. Abernathey, Isopycnal mixing by mesoscale eddies significantly impacts oceanic anthropogenic carbon uptake, Geophys. Res. Lett., 42, 4249-4255, doi: 10.1002/2015GL064100 2015a.Gnanadesikan, A., R. Abernathey and M.A. Pradal, Exploring the isopycnal mixing and helium-heat paradoxes in a suite of Earth System Models, Ocean Science, 11, 591-605, 2015b.Palter, J., S.M. Griffies, E.D. Galbraith, A. Gnanadesikan , B.L. Samuels, A. Klocker and M. Winton, The driving processes of deep ocean buoyancy and their temporal variability, J. Climate, 27, 551-573, 2014.Pradal, M.A. and A. Gnanadesikan, How does the Redi parameter for mesoscale mixing impact climate in an Earth System Model?, J. Adv. Model. Earth Sys., 6,586-601, doi:/10.1002/2013MS000273, 2014.SubmittedGnanadesikan, A. and M.-A. Pradal, How ocean heat transport can decouple sea surface temperature from global radiative balance and sea surface height, in rev. for J. Climate.Gnanadesikan, A., M.A. Pradal and R. Abernathey, Changes in the isopycnal mixing coefficient produce significant but offsetting changes in ocean carbon pumps, subm. Global Biogeochemical Cycles, 2015.Gnanadesikan, A., A.M. Russell, M.A. Pradal and R. Abernathey, Impact of lateral mixing on El Niño in a suite of coupled climate models, subm. Journal of Advances in Modeling Earth Systems.
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
mode waters
intermediate waters
climate models
hypoxia
isopycnal mixing