Oceanography Seminar
April 3, 3:00pm - 4:15pmMānoa Campus, Marine Sciences Building, MSB 100
Kelvin Richards
Professor
Department of Oceanography
International Pacific Research Center
University of Hawaii at Manoa
“Shear generated turbulence in the natural environmentâ€
Abstract: Shear generated turbulence is an important source of mixing in both the ocean and atmosphere. Often because of sampling difficulties we are limited to deriving statistical relationships between the turbulence activity and the larger scale properties of the fluid flow. The Western Equatorial Pacific proves to be an ideal natural laboratory to study shear generated turbulence. Here turbulent production is dominated by the shear associated with relatively long lived flow structures in the form of high vertical mode inertia-gravity waves and flow instabilities. With enough vertical resolution we can directly measure the characteristics of these flow features. We find a strong relationship between the vertical shear, stratification and the turbulent dissipation and implied vertical diffusion coefficient. In addition there is a strong indication from our observations that the vertical mixing length scale is inversely proportional to the buoyancy frequency as found in numerical studies. The dataset is also an excellent test for parameterization schemes. We find with suitable modification that one such scheme is able to capture a good deal of the vertical variation of turbulent activity as well as variations between different sampling periods.
Ticket Information
FREE
Event Sponsor
Oceanography, Mānoa Campus
More Information
(808) 956-7633
Thursday, March 28 |
|
9:00am |
PI-CASC Graduate Student Symposium
Mānoa Campus, Inmin Conference Room, East West Center
|
9:30am |
Mathematics Final Oral
Mānoa Campus, George 213
|
12:00pm |
Lunchbreak Mindfulness Series: The Spring Refresh
Mānoa Campus, Online
|
2:00pm |
Free Surprise Dessert with any Purchase
Mānoa Campus, Starbucks at Campus Center
|
3:00pm |
Gaza is Palestine: On Bakers and Storytellers
Mānoa Campus, 3114 Paliuili st
|
3:00pm |
Oceanography Seminar - Daniela Koenig
Mānoa Campus, Marine Science Building 100
|
4:30pm |
Gaza is Palestine: On Bakers and Storytellers
Mānoa Campus, 3114 Paliuili st
|
5:00pm |
Part Time JD Flex and Law School Admissions - Zoom Information Session - March
Mānoa Campus, Virtual
|
5:00pm |
Maika'i Tubbs: Candidate Presentation for Asst. Prof. Kanaka Maoli Visual Art
Mānoa Campus, ART 101
|
7:00pm |
Navigators Bible Study
Mānoa Campus, Honolulu Christian Church 2207 Oahu Ave, Honolulu, HI 96822
|
Friday, March 29 |
|
9:00am |
EGG-stravaganza - Surprise Treats with NEW Spring Drink Purchase
Mānoa Campus, Starbucks at Gateway Cafe
|
3:00pm |
Business Administration Final Oral
Mānoa Campus, Zoom
|
Saturday, March 30 |
|
9:00am |
EGG-stravaganza - Surprise Treats with NEW Spring Drink Purchase
Mānoa Campus, Starbucks at Gateway Cafe
|
7:30pm |
JAVANESE GAMELAN CONCERT
Mānoa Campus, Music Department Barbara Smith Amphiteater
|
Sunday, March 31 |
|
9:00am |
EGG-stravaganza - Surprise Treats with NEW Spring Drink Purchase
Mānoa Campus, Starbucks at Gateway Cafe
|