[GTP] Reminder GTP MMM seminar--Jun-Hong Liang-TODAY
Silvia Gentile
sgentile at ucar.edu
Wed Nov 10 11:33:50 MST 2010
Modeling the Bubbly Ocean
Jun-Hong Liang
University of California – Los Angeles
Institute of Geophysics and Planetary Physics
Department of Atmospheric and Oceanic Sciences
Los Angeles, CA
Gas bubbles are ubiquitous in the surface ocean boundary layer (OBL).
After their injection by breaking surface gravity waves, gas bubbles are
transported by turbulent water flows, rise by buoyancy, change size, and
exchange gases with the ambient water. They modify the acoustical and
optical properties of the upper ocean, enhance upper ocean
stratification, and provide an important pathway for gas exchange
between the atmosphere and the ocean. I will present a coupled
OBL-Bubble-Dissolved-Gas model that resolves the bubble behavior and
bubble impacts on upper ocean dynamics and dissolved gases. The model is
used to simulate bubbles and dissolved gases (1) for a bubble cloud in
an idealized down welling current, (2) for an individual breaking wave
in a laboratory flume, and (3) in a turbulent OBL with breaking waves.
As a result of bubble injection and evolution, the gas exchange rate is
elevated, and the equilibrium gas saturation level is enhanced.
Thursday, 11 November 2010, 3:30 PM
Refreshments 3:15 PM
NCAR-Foothills Laboratory
3450 Mitchell Lane
Bldg 2 Auditorium, Room 1022
--
Silvia Gentile
NCAR IMAGe
1850 Table Mesa Drive
Boulder, CO 803035
www.image.ucar.edu
More information about the GTP
mailing list