[Eoas-seminar] MET seminar - Tuesday Oct 8 - Dr. Isabel McCoy

[eoas-seminar at lists.fsu.edu]

Our next Meteorology seminar will be on Tuesday Oct 8 at 3pm. Please join us for a talk by Dr. Isabel McCoy (NOAA Chemical Sciences Laboratory) on the topic of “Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback”
If you would like to schedule an individual meeting with the speaker, please contact the host below with the times of your availability on the day of the seminar. These meetings will be online as Dr. McCoy is joining us remotely for the seminar.
DATE: Tuesday Oct 8
TIME: 3 PM
LOCATION: EOAS 1044

SPEAKER: Dr. Isabel McCoy
AFFILIATION: NOAA Chemical Sciences Laboratory
TITLE: Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback
ABSTRACT: Changes in boundary layer clouds in response to global warming as well as their interactions with aerosols are two key sources of uncertainty in future climate projections and climate sensitivity estimation. In this observational study, we examine how the organization of boundary layer clouds into mesoscale morphology patterns (O~100 km) may modulate both cloud feedback and aerosol forcing. We utilize identifications from a supervised neural network algorithm that categorized near-global satellite retrievals into three mesoscale cellular convective (MCC) cloud morphology patterns. At constant cloud fraction, brightness differences between morphology patterns depend in part on the prevalence of optically thin cloud features. Environmentally driven transitions from closed MCC to other morphology patterns, which are typically accompanied by more optically thin cloud features associated with increased precipitation depletion, are used as a framework to quantify the morphology contribution to the optical depth component of the shortwave cloud feedback. Including a measure of anthropogenic aerosol in addition to environmental controls in this regime framework provides insights into the sensitivity of aerosol forcing to cloud morphology shifts under past, current, and future climates.

Bio:
Isabel McCoy is a research scientist at CIRES, University of Colorado Boulder and NOAA Chemical Sciences Laboratory. She has a PhD in Atmospheric Sciences from the University of Washington and was a NOAA Climate and Global Change Postdoctoral Fellow from 2020-2022. Her work utilizes in situ and satellite observations as well as large-eddy simulations and global climate models to study how clouds influence the climate through aerosol-cloud-precipitation interactions and feedback. In her recent work, Isabel has focused on understanding how mesoscale organization of boundary layer clouds influences the climate system and how socioeconomic choices will impact our future climate through modifying regional and global aerosol concentrations in addition to greenhouse gases.

HOST: Michael Diamond, msd22d at fsu.edu



Christopher D. Holmes, PhD

Associate Professor of Meteorology and Environmental Science
Earth, Ocean and Atmospheric Science

Florida State University



EOAS Room 6091
phone: 850-645-0972

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