[Eoas-seminar] Fwd: [Physicsfaculty] Thursday's Physics Colloquium

[eoas-seminar at lists.fsu.edu]

In case anyone is interested in attending the Physics colloquium, given by yours truly.

Cheers,

Allison

--------------------------------------------
Allison A. Wing, Ph.D.
Werner A. and Shirley B. Baum Professor
Associate Professor, Department of Earth, Ocean, and Atmospheric Science
Florida State University
awing at fsu.edu



From: Physicsfaculty <physicsfaculty-bounces at lists.fsu.edu<mailto:physicsfaculty-bounces at lists.fsu.edu>> on behalf of Laticia Shaw Hall via Physicsfaculty <physicsfaculty at lists.fsu.edu<mailto:physicsfaculty at lists.fsu.edu>>
Date: Tuesday, November 7, 2023 at 8:34 AM
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Subject: [Physicsfaculty] Thursday's Physics Colloquium

PHYSICS DEPARTMENT
COLLOQUIUM

DATE:
Thursday, November 9th, 2023

TIME AND LOCATION:
Refreshments served at 3:15pm
Lecture at 3:45pm
101 UPL (Richards Building)

SPEAKER:
Allison Wing

AFFILIATION:
Florida State University
TITLE:
Acceleration of tropical cyclone development by cloud-radiative feedbacks

ABSTRACT:
A complete understanding of the development of hurricanes and tropical cyclones (TC) remains elusive and forecasting TC intensification remains challenging. This motivates further research into the physical processes that govern TC development. Here, I investigate the importance of radiative feedbacks in TC development and the mechanisms underlying their influence is investigated in a set of idealized convection-permitting numerical simulations.  I find that a “cloudy greenhouse effect” accelerates TC development, in which anomalous infrared warming in areas of deep thunderstorm clouds near the center of theTC drives rising motion in the storm, which helps moisten the atmosphere and aids in the formation of the TC’s circulation. Improving the representation of cloud-radiative feedbacks in forecast models therefore has the potential to yield critical advancements in TC prediction, but this requires a better understanding of these cloud-radiative feedbacks in observed TCs. Thus I also present ongoing work that investigates these processes using satellite (CloudSat) retrievals of cloud properties. Both the model simulations and satellite observations agree that ice clouds are the strongest driver of the radiative feedbacks, and that these feedbacks are particularly important in storms undergoing rapid intensification.
HOST:
Jorge Piekarewicz

Laticia Shaw-Hall
Administrative Assistant
Department of Physics
315 Keen Building
Florida State University
Tallahassee, FL 32306
Phone: (850) 644-2868
Email: lshawhall at fsu.edu<mailto:lshawhall at fsu.edu>

*Work Remotely on Wednesdays and Fridays​​

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