[Eoas-seminar] Fw: EOAS Colloquium on October 10, 2025

[eoas-seminar at lists.fsu.edu]

Hi all,

This is a friendly reminder that we will have an EOAS colloquium today at 3:00 PM in EOA 1044. Please see the forwarded email for more details.

Look forward to meeting you this afternoon.

Cheers,


Ming Ye, Robert Spencer, and Zhaohua Wu


________________________________
From: Zhaohua Wu <zwu at fsu.edu>
Sent: Monday, October 6, 2025 9:43 AM
To: Eoas-seminar <eoas-seminar at lists.fsu.edu>
Cc: Marco Larranaga Fu <marco.larranaga at fsu.edu>
Subject: EOAS Colloquium on October 10, 2025

Hi All,

You are cordially invited to attend the weekly EOAS Colloquium Series for the 2025–2026 academic year. Below are the details of the seminar on 10/10/2025. A poster of the colloquium is also attached to this email. Look forward to seeing you at the colloquium.

=============

Time:

3:00 - 4:00 PM, Friday, October 10, 2025.

Location:

EOA 1044

Speaker:

Dr. Marco Larrañaga, Center for Ocean-Atmospheric Prediction Studies, Florida State University

Title:

Exploring feedback mechanisms between the ocean, atmosphere, and sea surface waves at the mesoscale.

Abstract:

 Mesoscale eddies significantly influence ocean-atmosphere interactions through both direct and indirect feedback mechanisms. Thermal feedback refers to how mesoscale eddies induce spatial anomalies in sea surface temperature, modulating the exchange of heat and momentum between the ocean and the atmosphere and driving local weather variability. In addition to thermal feedback, current feedback plays a crucial role in the energy dynamics of the ocean. This mechanism acts as an energy sink, transferring kinetic energy from the ocean's mesoscale features to the atmosphere, thus reducing eddy kinetic energy by approximately 30% in regions characterized by high mesoscale activity. In the Gulf of Mexico, a region with intense mesoscale dynamics influenced by the Loop Current and the eddies that the current detaches, the current feedback mechanism dampens mesoscale activity by roughly 20%. This energy reduction modifies the detachment statistics of Loop Current eddies, influencing their shedding frequency, size, and lifespan. Such alterations in eddy properties have broader implications for regional oceanic and atmospheric dynamics. Furthermore, mesoscale eddies indirectly impact the generation of sea surface waves. By inducing anomalies in the wind stress field, the current feedback leads to a tendency for increased wave heights. These findings underscore the importance of considering current feedback mechanisms in coupled ocean-sea surface waves-atmosphere simulations to enhance predictions of oceanic and atmospheric variability

==============+

Cheers,

Ming Ye, Robert Spencer, and Zhaohua Wu




***************************************************************

Zhaohua Wu, Professor

Earth, Ocean, and Atmospheric Science Building, Room 6041, and

Center for Ocean-Atmospheric Prediction Studies, Room 295

Florida State University

Tallahassee, Florida

zwu at fsu.edu<mailto:zwu at fsu.edu>

****************************************************************


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.fsu.edu/pipermail/eoas-seminar/attachments/20251010/f712b1ee/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 10102025_Marco_Larra?aga.pdf
Type: application/pdf
Size: 142269 bytes
Desc: 10102025_Marco_Larra?aga.pdf
URL: <http://lists.fsu.edu/pipermail/eoas-seminar/attachments/20251010/f712b1ee/attachment-0001.pdf>