Join IPRC/Oceanography Seminar - Niklas Schneider

February 2, 3:00pm - 4:30pm
Mānoa Campus, Marine Science Building 100

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TITLE: Dynamics of the atmospheric boundary layer response to ocean mesoscale sea surface temperatures

ABSTRACT: The impact of the mid-latitude ocean on the atmosphere has been a long standing area of research, that was upended with observations of ubiquitous imprints of ocean meso-scale sea surface temperatures on near surface winds. Here, we test a recent theory for the mid-latitude atmospheric response to ocean mesoscale sea surface temperature (SST) in the Southern Ocean. The theory is based on a linearization about a spatially uniform, large-scale Ekman spiral of the steady state, atmospheric boundary-layer dynamics, and yields the atmospheric response as classical Ekman dynamics extended to include advection, and sea surface temperature induced changes of atmospheric mixing and hydrostatic pressure. The theoretical response is governed by spectral transfer functions between sea surface temperature and boundary layer variables. Transfer functions estimated from an extended integration of an atmospheric general circulation model, AFES, are consistent with the theory, and suggest that it faithfully captures the underlying physics. Regressions or ‘coupling coefficients' between surface wind stress and sea surface temperatures are explained by SST induced changes of the surface stability, that directly impact surface stress, and changes of the surface winds as described by the theory.

Event Sponsor
Dept. of Oceanography, Mānoa Campus

More Information
Niklas Schneider, 956-8383, nschneid@hawaii.edu, http://www.soest.hawaii.edu/oceanography/faculty/schneider.html, Joint IPRC/Oceanography Seminar - Niklas Schneider (PDF)

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Thursday, February 2
9:00am	Happy 97th Birthday Honolulu CC Honolulu Campus, Administration
9:00am	Department of Art and Art History's Visiting Artist Program in Glass Mānoa Campus, Art Building
10:00am	Kāpili ‘Oihana Internship Program Info Session West Oʻahu Campus, B233
10:00am	Spring 2017 Student Involvement Fair Mānoa Campus, Campus Center
11:00am	Club Rush - Spring into Action 2017! West Oʻahu Campus, Courtyard
12:00pm	Connecting Works of the Past to the Future at the Bishop Museum Mānoa Campus, Kuykendall 410
2:00pm	Study Abroad in Lille, France Mānoa Campus, Moore 119
2:00pm	Study Abroad in Seville, Spain Mānoa Campus, Moore 120
3:00pm	Study Abroad in Annecy, France Mānoa Campus, Moore 103
3:00pm	Join IPRC/Oceanography Seminar - Niklas Schneider Mānoa Campus, Marine Science Building 100
5:00pm	2017 Seiji Naya Asia-Pacific Lecture: Globalization & the American Worker Mānoa Campus, Shidler College of Business, BUSAD A-102
6:30pm	Hanauma Bay Educational Lecture Series Hanauma Bay Nature Preserve Theater