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Observed Response of the Marine Atmospheric Boundary Layer to the Southern Ocean Fronts During the Ipy Bgh 2008 Cruise : Volume 9, Issue 2 (28/03/2012)

By Messager, C.

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Book Id: WPLBN0003977629
Format Type: PDF Article :
File Size: Pages 50
Reproduction Date: 2015

Title: Observed Response of the Marine Atmospheric Boundary Layer to the Southern Ocean Fronts During the Ipy Bgh 2008 Cruise : Volume 9, Issue 2 (28/03/2012)  
Author: Messager, C.
Volume: Vol. 9, Issue 2
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Speich, S., Messager, C., & Key, E. (2012). Observed Response of the Marine Atmospheric Boundary Layer to the Southern Ocean Fronts During the Ipy Bgh 2008 Cruise : Volume 9, Issue 2 (28/03/2012). Retrieved from

Description: Laboratoire de Physique des Océans, CNRS/INSU, UMR6523, BP 70, 29280 Plouzané Cedex, France. A set of meteorological instruments was added to an oceanographic cruise crossing the Southern Ocean from Cape Town to 57°33' S on board the R/V Marion Dufresne during the summer 2008. The Cape Cauldron, the subtropical, subantarctic, polar and southern Antarctic circumpolar current fronts were successively crossed. The recorded data permitted to derive the exchange of momentum, heat and water vapour at the ocean-atmosphere interface. A set of 38 radiosonde releases complemented the dataset. The marine atmospheric boundary layer characteristics and air-sea interaction when ship crossed the fronts and eddies are discussed.

The specific role of the atmospheric synoptic systems advection on the air-sea interaction is highlighted over these regions. The dynamic associated with these systems drive the vertical mixing of the MABL by wind shear effect and/or the vertical thermal mixing. The MABL is stabilized (destabilized) and mixing is inhibited (enhanced) over the warm front sides if meridional wind component is northerly (southerly).

Observed response of the marine atmospheric boundary layer to the Southern Ocean fronts during the IPY BGH 2008 cruise

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