By a News Reporter-Staff News Editor at Physics Week -- Current study results on Physics have been published. According to news reporting originating in Corvallis, Oregon, by VerticalNews journalists, research stated, “The role of turbulent mixing in regulating the ocean’s response to the Madden-Julian oscillation (MJO) is assessed from measurements of surface forcing, acoustic, and microstructure profiles during October-early December 2011 at 0 degrees, 80.5 degrees E in the Indian Ocean. During the active phase of the MJO, the surface mixed layer was cooled from above by air-sea fluxes and from below by turbulent mixing, in roughly equal proportions.”
Funders for this research include National Science Foundation, Office of Naval Research (US).
The news reporters obtained a quote from the research from Oregon State University, “During the suppressed and disturbed phases, the mixed layer temperature increased, primarily because of the vertical divergence between net surface warming and turbulent cooling. Despite heavy precipitation during the active phase, subsurface mixing was sufficient to increase the mixed layer salinity by entraining salty Arabian Sea Water from the pycnocline. The turbulent salt flux across the mixed layer base was, on average, 2 times as large as the surface salt flux. Wind stress accelerated the Yoshida-Wyrtki jet, while the turbulent stress was primarily responsible for decelerating the jet through the active phase, during which the mean turbulent stress was roughly 65% of the mean surface wind stress.”
According to the news reporters, the research concluded: “These turbulent processes may account for systematic errors in numerical models of MJO evolution.”
For more information on this research see: The Role of Turbulence in Redistributing Upper-Ocean Heat, Freshwater, and Momentum in Response to the MJO in the Equatorial Indian Ocean. Journal of Physical Oceanography , 2018;48(1):197-220. Journal of Physical Oceanography can be contacted at: Amer Meteorological Soc, 45 Beacon St, Boston, MA 02108-3693, USA. (American Meteorological Society - www.ametsoc.org; Journal of Physical Oceanography - http://www.ametsoc.org/pubs/journals/jpo)
Our news correspondents report that additional information may be obtained by contacting J.N. Moum, Oregon State University, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331, United States. Additional authors for this research include K. Pujiana and W.D. Smyth.
The direct object identifier (DOI) for that additional information is: https://doi.org/10.1175/JPO-D-17-0146.1. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.
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CITATION: (2018-05-01), Researchers’ Work from Oregon State University Focuses on Physics (The Role of Turbulence in Redistributing Upper-Ocean Heat, Freshwater, and Momentum in Response to the MJO in the Equatorial Indian Ocean), Physics Week, 619, ISSN: 1944-2661, BUTTER® ID: 015601482
From the newsletter Physics Week.
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