Atmospheric & Oceanic Sciences 270 Seminars

The UCLA Department of Atmospheric and Oceanic Sciences hosts weekly 270 Seminars. Professors, researchers, and educators from around the world present on topics ranging from Oceanography, Space Physics and Planetary Systems, Atmospheric Chemistry and Physics, and Biogeochemistry. Seminars are every Wednesday of the academic year from 3:00pm - 4:00pm PST, unless otherwise noted.

All 270 seminars will be held live via Zoom until further notice. Please click under "Details" of any seminar to view abstract details. Seminar schedules are posted quarterly, and updated once information becomes available.

Recorded seminars can be found here.

Spring 2021

Date	Speaker	Institution	Title	Details
3/31/21, 3:00PM	Elfathi Eltahir	MIT	Regional Impacts of Climate Change	Abstract
4/7/21, 3:00PM	Katie Tuite	UCLA	Nitrous acid (HONO) chemistry in two polluted environments: the urban boundary layer and wildfire smoke plumes	Abstract
4/14/21, 3:00PM	Nathaniel Brockway	UCLA	Remote Sensing of Radical Precursors in Biomass Burning Plumes	Abstract
4/21/21, 3:00PM	David Peterson	U.S. Naval Research Laboratory	The Unprecedented Pyrocumulonimbus Super Outbreak in Australia at the Dawn of 2020: Cause and Perspective	Abstract
4/28/21, 3:00PM	Jacob Bortnik	UCLA
5/7/21, 3:00PM	Susan Solomon	MIT
5/12/21, 3:00PM	Yue Huang	UCLA
5/19/21, 3:00PM	TBA	TBA
5/26/21, 3:00PM	TBA	TBA
6/2/21, 3:00PM	Tersi Arias-Young	UCLA

Winter 2021

Date	Speaker	Institution	Title	Details
1/13/21 3:00PM	David Siegel	UC Santa Barbara	Assessing Global Biogeochemical Processes from Satellite Observations: Progress to Date & Plans Forward	Abstract
1/20/21 3:00PM	Morgan O'Neil	Stanford University	Hydraulic jump-like dynamics above supercell thunderstorms	Abstract
2/3/21 3:00PM	Doug Capone	University of Southern California	Marine Mosaics: Emerging Patterns of Nitrogen Fixation in the Oceans	Abstract
2/10/21 3:00PM	Raleigh Martin	U.S. National Science Foundation	Navigating Policy and the Geosciences	Abstract
2/17/21 3:00PM	Roya Bahreini	UC Riverside	Sources and Characteristics of Particulate Matter in an Urban/ Agricultural/ Desert Setting	Abstract
3/3/21 3:00PM	Karen McKinnon	UCLA	The Trends and Causes of Midlatitude Heat Extremes	Abstract

Fall 2020

Date	Speaker	Institution	Title	Details
10/7/20 3:00PM	Paul O'Gorman	MIT	Regional Responses of Extreme Precipitation to Climate Change: a Role for Both Dynamical Understanding and Machine Learning	Abstract
10/14/20 3:00PM	Holly Oldroyd	UC Davis	Turbulent Land-Atmosphere Interactions and the Impacts of Steep Terrain	Abstract
10/21/20 3:00PM	Marty Ralph	Scripps Institution of Oceanography	Atmospheric Rivers: Recent Developments in Science. Impacts, and Policies	Abstract
10/28/20 3:00PM	Phoebe Lam	UC Santa Cruz	Particle distribution, composition, and dynamics in three ocean basins	Abstract
11/4/20 3:00PM	Charles Ichoku	Howard University	Satellite-based estimation of biomass burning emissions for modeling smoke impacts: where we are and what we need	Abstract
11/18/20 3:00PM	Dione Rossiter	UC Berkeley	Systemic Racism in Science Communication	Abstract
12/2/20 3:00PM	Meinrat Andreae	Max Planck Institute for Chemistry	Clouds and Sinks in the Life Cycle of Pristine Aerosol	Abstract

Spring 2020

Date	Speaker	Institution	Title	Details
04/04/20	Claudie Beaulieu	UC Santa Cruz	Detection of long-term trends in ocean chlorophyll	Abstract
04/22/20	Robert Wood	University of Washington	Current and Future Cloud Brightening from Ships in Subtropical Low Clouds	Abstract
04/29/20	Adeyemi Adebiyi	UCLA	Between Smoke and Dust: How uncertainties in absorbing aerosols limit our understanding of global climate	Abstract
05/06/20	Marcelo Chamecki	UCLA	Chimneys of the Amazon: Effects of Gentle Topography on Gas Fluxes Emitted within Forests	Abstract
05/13/20	Ken Zhao	UCLA	Awakening the Sleeping Ice Giants: Ocean-Driven Glacial Melting via Fjord and Ice-Shelf Cavity Circulation	Abstract
05/20/20	Philip Fine	South Coast AQMD	The South-Coast AQMD: Air Quality Challenges and Opportunities	Abstract
06/03/20	Tomas Chor	UCLA	Mixing in Oceanic Boundary Layers: A Method to Guide Model Development	Abstract

Winter 2020

Date	Speaker	Institution	Title	Details
01/08/20	Zhiming Kuang	Harvard University	Some applications of linear response functions in atmospheric dynamics	Abstract
01/15/20	Andy Ridgwell	UC Riverside	~Isempty(intersect('biology',models))	Abstract
01/22/20	Tracey Holloway	UW-Madison	New Data and Modeling for Air Quality Management	Abstract
01/29/20	David Neelin	UCLA	The simplicity of precipitation — dialogue between diagnostics and theoretical underpinnings	Abstract
02/05/20	John Seinfeld	Caltech	Secondary Organic Aerosol	Abstract
02/12/20	Elizabeth Barnes	Colorado State Unviersity	Viewing Climate Signals through an AI Lens	Abstract
02/19/20	Naomi Maruyama	NOAA/ CIRES	Cold plasma coupling between the magnetosphere, plasmasphere, and ionosphere	Abstract
02/26/20	Heidi Nepf	MIT	How vegetation alters waves and current, and the feedbacks to environmental system function	Abstract
03/04/20	Martha Sutula	SCCWRP	Ingredients to a "Solution": Increasing Resilience to Acidification, Deoxygenation, and Harmful Algal Blooms in the Souther California Bight	Abstract
03/11/20	Charles Jones	UC Santa Barbara	The Sundowner winds in Santa Barbara, California, USA	Abstract

Fall 2019

Date	Speaker	Institution	Title	Details
10/02/19	Adam Kellerman	UCLA	The response of cosmic noise absoprtion to electron precipitation: A new method to infer energy input into the upper atmosphere over daily to climatic scales	Abstract
10/0919	John Worden	JPL	Quantifying The Global Methane Budget and Its Uncertainties Using Satellite and Ground Measurements	Abstract
10/16/19	Nicholas Lutsko	MIT	Extending Large-Scale Dynamics From the Zonal-Mean to Regional Climates	Abstract
10/23/19	Bette Otto-Bliesner	NCAR	Sensitivity of the Greenland Ice Sheet to Warming: A View from the Past - The Last Interglacial	Abstract
10/30/19	Fiaz Ahmed	UCLA	Probing Precipitation Physics with Tropical Rainfall Statistics	Abstract
11/06/19	Mike Pritchard	UC Irvine	Turbulence Matters: Emerging Opportunities for Numerical Climate Dynamics in the Era of Exascale Computing and Deep Learning	Abstract
11/13/19	Philip Rasch	Pacific Northwest National Laboratory	Challenges and Prospects for the treatment of cloud and aerosol proceses in Earth System Models	Abstract
11/20/19	Daniele Bianchi	UCLA	Oceanic emissions of nitrous oxide: from global patterns to eddy-driven reactions	Abstract
12/04/19	Sarah Purkey	Scripps Institution of Oceanography	New insight into deep ocean warming from tracer data, deep argo, and another decade of repeat hyrography	Abstract

Spring 2019

Date	Speaker	Institution	Title	Details
04/03/19	Aviv Solodoch	UCLA	What Makes the Deep Western Boundary Current "Leak"?	Abstract
04/10/19	Karen McKinnon	UCLA	Predictability and Uncertainty: Two Temperature Tales	Abstract
04/17/19	Qinghua Ding	UC Santa Barbara	Fingerprints of Internal Drivers of Recent Arctic Warming	Abstract
04/24/19	Hung-I Lee	UCLA	Monsoon Onset and Precipitation Control by Mid-latitude Waves in Modern and Glacial Climates	Abstract
05/01/19	Suzan Lozier	Duke University	A 21^st Look at the Global Ocean Conveyor Belt	Abstract
05/08/19	Charlie Zender	UC Irvine	Automatic Weather Stations Reveal How Clouds Affect Greenland's Surface	Abstract
05/15/19	Aaron Ridley	University of Michigan	Modeling the Upper Atmospheric Reaction to Energy Input	Abstract
05/22/19	Alison Gray	University of Washington	The Southern Ocean’s Role in the Global Carbon Cycle: New Results from the SOCCOM Array of Biogeochemical-Argo Floats	Abstract
05/29/19	Inez Fung	UC Berkeley	Carbon Weather Data- Assimilation	Abstract
06/06/19	Rong Fu	UCLA	Interactions between Aerosols and Mesoscale Convective Lifecycle inferred from Satellite Observations	Abstract

Winter 2018

Date	Speaker	Institution	Title	Details
01/09/19	Jesus Araujo	UCLA	The Environment and the Cardiometabolic Conundrum: Is the Answer in the Mitochondria?	Abstract
01/16/19	Joyce Penner	University of Michigan	Climate impact of aerosols on large-scale cirrus clouds	Abstract
01/23/19	David Gonzalez	UCLA	Why Do Particles Make People Sick? Reactive Oxygen Species from Biomass Burning Components in Simulated and Human Lung Fluids	Abstract
01/30/19	Jose-Luis Jimenez	CU Boulder	Submicron aerosols: from the urban to the remote atmopshere	Abstract
02/06/19	Fiamma Straneo	Scripps Institution of Oceanography	Glaciers on the loose: navigating Greenland's coastal margins to unravel the causes and consequences of a shrinking ice sheet	Abstract
02/13/19	Ian Faloona	UC Davis	The Importance of Seeing Turbulence, and its Multiscale Dependence, in Air Pollution Studies: Examples from California's San Joaquin Valley	Abstract
02/20/19	Chris Bretherton	University of Michigan	Boundary layer clouds and aerosols over the Souther Ocean: New observations for making better climate models.	Abstract
02/27/19	Dorian Abbot	University of Chicago	The Snowball Bifurcation on Tidally Influenced Planets	Abstract
03/06/19	Julia Hazel	UCLA	Exploring the Wind-Driven Near-Antarctic Circulation	Abstract
03/13/19	Leif Thomas	Stanford University	Interactions between Near-Inertial Waves and Balanced Currents at Ocean Fronts	Abstract

Fall 2018

Date	Speaker	Institution	Title	Details
10/03/18	Duane Waliser	JPL	Atmospheric Rivers: Water Extremes that Shape Our Global Weather and Climate	Abstract
10/10/18	Dennis Baldocchi	UC Berkeley	How much water is evaporated across California during the booms and busts in rainfall?: Experiences from measuring and modeling evaporation across California between 2000 and 2017	Abstract
10/17/18	Boyi Wang	UCLA	Imaging 2D structures of transient and localized solar wind-magnetosphere interaction	Abstract
10/24/18	Cecilia Blitz	University of Washington	Drivers of Souther Ocean climate change in recent decades	Abstract
10/31/18	Victor Pinto	UCLA	Influence of the Solar Wind in the dynamics of relativistic electrons on the Earth's Radiation Belts	Abstract
11/07/18	Spencer Hill	UCLA	Back to the basics for monsoons, Hadley cells, and rotating tanks	Abstract
11/14/18	Harlan Spence	University of New Hampshire	Q: Precipitation, Kelvin-Helmholtz Waves, and Turbulence - Atmospheric Science or Space Science? A: Both!	Abstract
11/28/18	Schafer Smith	New York University	The role eddy stirring in structuring Arabian Sea oxygen distributions	Abstract
12/05/18	David Randall	Colorado State University	Interactions of convection and radiation under homogeneous boundary conditions on the sphere, with and without rotation	Abstract

Spring 2018

Date	Speaker	Institution	Title
06/13/18	L. Ruby Leung	Pacific Northwest National Laboratory	Modeling Mesoscale Convective Systems and their Large-scale Environments
06/06/18	Gaby Katul	Duke University	A universal scaling law for gas transfer velocities across complex interfaces
05/30/18	Ryan McGranaghan	JPL	Studying the weather in space with Global Navigation Satellite Systems (GNSS) signals
05/23/18	Daniel Dauhajre	UCLA	Submesoscale Currents in the Coastal Ocean
05/16/18	David Ridley	MIT	Exploring the drivers and effects of multi-decadal changes in aerosol
05/09/18	Yi-Hung Kuo	UCLA	Convective transition statistics for climate model diagnostics
05/02/18	Amy Clements	University of Miami	Rethinking the Role of the Ocean in the Atlantic Multi-Decadal Climate Variability
04/25/18	Joern Callies	Caltech	Submesoscale eddies in the abyssal ocean
04/18/18	Becky Alexander	University of Washington	Sulfate aerosol formation in polluted and pristine environments
04/04/18	Alyson Santoro	UC Santa Barbara	Nitrification and nitrous oxide oxide production in open ocean and coastaloxygen deficient zones

Winter 2018

Date	Speaker	Institution	Title
03/14/18	Lynne Talley	Scripps
03/07/18	Kristen Davis	UC Irvine	Fate of internal waves on a shallow shelf”
2/28/18	Timu Gallien	UCLA	Urban Coastal Flood Prediction: Beaches, Backshores and Bathtubs
02/21/18	Tapio Schneider	Caltech	Expectations and surprises about climate feedbacks from low clouds
02/14/18	Dilhara Ranasinghe	UCLA	Effect of sound wall-vegetation combination barriers on pollution dispersion from freeways
02/07/18	Sarah Kapnick	NOAA	Potential for Seasonal Snowpack Prediction
01/31/18	Ann Marie Carlton	UC Irvine	Aerosol optical thickness: conncecting surface mass to measurements from outer space
01/24/18	David Romps	UC Berkeley	The void: How the atmosphere's humidity deficit sets cloud cover and storm intensity
01/17/18	Kim Prather	UC San Diego	Advancing our understanding of aerosol on clouds, climate, and precipitation over California”
01/10/18	Tina Chow	UC Berkeley	Wind energy and the stable boundary layer

Fall 2017

Date	Speaker	Institution	Title
11/27/18	Marianna Linz	UCLA	The Circulation of the Stratosphere from Observations
11/15/17	Manabu Shiraiwa	UC Irvine	Multiphase chemistry of organic aerosols and reactive oxygen species in the atmosphere
11/01/17	Ronal Kwok	JPL	Sea ice thickness from space: Why is it so difficult?
10/25/17	Nina Bednarsek	NOAA/SCCWRP	Using pteropod in disentangling multiple stressor effects in the California Ecosystem
10/18/17	Thomas Lauvaux	Penn State	Atmospheric Inversion of Urban Greenhouse Gas Emissions
10/11/17	Alan Barreca	UCLA	Adapting to Climate Change: The Remarkable Decline in The Health Costs of Extreme Heat Over the 20th Century
10/04/17	Juan Lora	UCLA	Westerlies, Atmospheric Rivers, and Moisture Transport to North America Since the Last Glacial Maximum

58°

Chance of Showers

Spring 2021

Winter 2021

Fall 2020

Spring 2020

Winter 2020

Fall 2019

Spring 2019

Winter 2018

Fall 2018

Spring 2018

Winter 2018

Fall 2017

Related Seminars

Past AOS Seminars

Campus Address

Mailing Address

Contact Information

Campus Address	Mailing Address	Contact Information
520 Portola Plaza	UCLA Atmospheric & Oceanic Sciences	Students Services Office: (310) 825-1954
Math Sciences Building 7127	Box 951565	Email: studentinfo@atmos.ucla.edu
Los Angeles, CA 90095	Los Angeles, CA 90095-1565	Phone: (310) 825-1217