Friday, October 31, 2014

Events Calendar

AOSC Seminar: Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) in the South Pacific; a comparison btween observations and the NCAR-CCSM4 model

Thursday, March 14, 2013, 15:30 - 17:00
by  This email address is being protected from spambots. You need JavaScript enabled to view it. Hits : 127

Dr. Corrine Harten, JGCRI

The formation of Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) significantly contributes to the oceanic uptake, transport, and storage of anthropogenic gases, such as CO2 and chlorofluorocarbons (CFCs). These water masses also play an important role in the Earth's heat and freshwater budgets, and in the resupply of oxygen and nutrients to the subtropical oceans to sustain the marine ecosystem.

We conducted a comparison of the average formation rates in the South Pacific using CFC-12 inventories from observations and simulations from the National Center for Atmospheric Research (NCAR) Community Climate System Model version 4 (CCSM4). CCSM4 accurately simulates the southeast Pacific as the main formation region for both SAMW and AAIW.

Model formation rates of SAMW and AAIW vary from observations.  This talk will explore the numerous reasons for the differences (mixed layer depth, meridional transport, lack of observations, and surface ocean conditions) and how these differences may influence the prediction of future climates within the model.

 

Location : CSS 2400 Auditorium
Contact : Jim Carton ( This email address is being protected from spambots. You need JavaScript enabled to view it. )

Back