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, unless otherwise noted. 

Due to Covid-19, 270 seminars will be held live via Zoom until further notice. Please click under “Details” of any seminar to view zoom information and abstract details. Seminar schedules are posted quarterly, and updated once information becomes available. 

Recorded seminars can be found here.

Fall 2020 

10/7/20 at 3:00pmPaul O’GormanMITRegional Responses of Extreme Precipitation to Climate Change: a Role for Both Dynamical Understanding and Machine LearningAbstract
10/14/20 at 3:00pmHolly OldroydUC DavisTurbulent Land-Atmosphere Interactions and the Impacts of Steep TerrainAbstract
10/21/20 at 3:00pmMarty RalphScripps Institution of OceanographyAtmospheric Rivers: Recent Developments in Science. Impacts, and PoliciesAbstract
10/28/20 at 3:00pmPhoebe LamUC Santa CruzParticle distribution, composition, and dynamics in three ocean basinsAbstract
11/4/20 at 3:00pmCharles IchokuHoward UniversitySatellite-based estimation of biomass burning emissions for modeling smoke impacts: where we are and what we needAbstract
11/18/20 at 3:00pmDione RossiterUC BerkeleySystemic Racism in Science CommunicationAbstract
12/2/20 at 3:00pmMeinrat AndreaeMax Planck Institute for ChemistryClouds and Sinks in the Life Cycle of Pristine AerosolAbstract

Spring 2020

04/04/20Claudie BeaulieuUC Santa CruzDetection of long-term trends in ocean chlorophyllAbstract
04/22/20Robert WoodUniversity of WashingtonCurrent and Future Cloud Brightening from Ships in Subtropical Low CloudsAbstract
04/29/20Adeyemi AdebiyiUCLABetween Smoke and Dust: How uncertainties in absorbing aerosols limit our understanding of global climate
05/06/20Marcelo ChameckiUCLAChimneys of the Amazon: Effects of Gentle Topography on Gas Fluxes Emitted within ForestsAbstract
05/13/20Ken ZhaoUCLAAwakening the Sleeping Ice Giants:  Ocean-Driven Glacial Melting via Fjord and Ice-Shelf Cavity CirculationAbstract
05/20/20Philip FineSouth Coast AQMIDThe South-Coast AQMD: Air Quality Challenges and OpportunitiesAbstract
06/03/20Tomas ChorUCLAMixing in Oceanic Boundary Layers: A Method to Guide Model DevelopmentAbstract

Winter 2020

01/08/20Zhiming KuangHarvard UniversitySome applications of linear response functions in atmospheric dynamicsAbstract
01/15/20Andy RidgwellUC Riverside~Isempty(intersect(‘biology’,models))Abstract
01/22/20Tracey HollowayUW-MadisonNew Data and Modeling for Air Quality ManagementAbstract
01/29/20David NeelinUCLAThe simplicity of precipitation — dialogue between diagnostics and theoretical underpinningsAbstract
02/05/20John SeinfeldCaltechSecondary Organic AerosolAbstract
02/12/20Elizabeth BarnesColorado State University
Viewing Climate Signals through an AI Lens
02/19/20Naomi MaruyamaNOAA/CIRESCold plasma coupling between the magnetosphere, plasmasphere, and ionosphereAbstract
02/26/20Heidi NepfMITHow vegetation alters waves and current, and the feedbacks to environmental system functionAbstract
03/04/20Martha SutulaSCCWRPIngredients to a “Solution”: Increasing Resilience to Acidification, Deoxygenation, and Harmful Algal Blooms in the Souther California BightAbstract
03/11/20Charles JonesUC Santa BarbaraThe Sundowner winds in Santa Barbara, California, USAAbstract

Fall 2019

10/02/19Adam KellermanUCLAThe response of cosmic noise absoprtion to electron precipitation: A new method to infer energy input into the upper atmosphere over daily to climatic scales

10/09/19John WordenJPLQuantifying The Global Methane Budget and Its Uncertainties Using Satellite and Ground MeasurementsAbstract
10/16/19Nicholas LutskoMITExtending Large-Scale Dynamics From the Zonal-Mean to Regional Climates
10/23/19Bette Otto-BliesnerNCARSensitivity of the Greenland Ice Sheet to Warming: A View from the Past – The Last InterglacialAbstract
10/30/19Fiaz AhmedUCLAProbing Precipitation Physics with Tropical Rainfall StatisticsAbstract
11/06/19Mike PritchardUC IrvineTurbulence Matters: Emerging Opportunities for Numerical Climate Dynamics in the Era of Exascale Computing and Deep LearningAbstract
11/13/19Philip Rasch Pacific Northwest National LaboratoryChallenges and Prospects for the treatment of cloud and aerosol proceses in Earth System ModelsAbstract
11/20/19Daniele BianchiUCLAOceanic emissions of nitrous oxide: from global patterns to eddy-driven reactionsAbstract
12/04/19Sarah PurkeyScripps Institution of OceanographyNew insight into deep ocean warming from tracer data, deep argo, and another decade of repeat hyrographyAbstract

Spring 2019

04/03/19Aviv SolodochUCLAWhat Makes the Deep Western Boundary Current “Leak”?Abstract
04/10/19Karen McKinnonUCLAPredictability and Uncertainty: Two Temperature TalesAbstract
04/17/19Qinghua DingUC Santa BarbaraFingerprints of Internal Drivers of Recent Arctic WarmingAbstract
04/24/19Hung-I LeeUCLAMonsoon Onset and Precipitation Control by Mid-latitude Waves in Modern and Glacial ClimatesAbstract
05/01/19Suzan LozierDuke UniversityA 21st Look at the Global Ocean Conveyor BeltAbstract
05/08/19Charlie ZenderUC Irvine
Automatic Weather Stations Reveal How Clouds Affect Greenland’s Surface

05/15/19Aaron RidleyUniversity of MichiganModeling the Upper Atmospheric Reaction to Energy InputAbstract
05/22/19Alison GrayUniversity of WashingtonThe Southern Ocean’s Role in the Global Carbon Cycle: New Results from the SOCCOM Array of Biogeochemical-Argo FloatsAbstract
05/29/19Ines FungUC BerkeleyCarbon Weather Data- AssimilationAbstract
06/06/19Rong FuUCLA
Interactions between Aerosols and Mesoscale Convective Lifecycle inferred from Satellite Observations 

Winter 2018

01/09/19Jesus AraujoUCLAThe Environment and the Cardiometabolic Conundrum: Is the Answer in the Mitochondria?Abstract
01/16/19Joyce PennerUniversity of MichiganClimate impact of aerosols on large-scale cirrus clouds
01/23/19David GonzalezUCLA
Why Do Particles Make People Sick? Reactive Oxygen Species from Biomass Burning Components in Simulated and Human Lung Fluids 
01/30/19Jose-Luis JimenezCU BoulderSubmicron aerosols: from the urban to the remote atmopshere
02/06/19Fiamma StraneoScripps Institution of OceanographyGlaciers on the loose: navigating Greenland’s coastal margins to unravel the causes and consequences of a shrinking ice sheetAbstract
02/13/19Ian FaloonaUC DavisThe Importance of Seeing Turbulence, and its Multiscale Dependence, in Air Pollution Studies: Examples from California’s San Joaquin ValleyAbstract
02/20/19Chris BrethertonUniversity of MichiganBoundary layer clouds and aerosols over the Souther Ocean: New observations for making better climate models. Abstract
02/27/19Dorian AbbotUniversity of ChicagoThe Snowball Bifurcation on Tidally Influenced PlanetsAbstract
03/06/19Julia HazelUCLA
Exploring the Wind-Driven Near-Antarctic Circulation
03/13/19Leif ThomasStanford UniversityInteractions between Near-Inertial Waves and Balanced Currents at Ocean FrontsAbstract

Fall 2018

10/03/18Duane WaliserJPLAtmospheric Rivers: Water Extremes that Shape Our Global Weather and ClimateAbstract
10/10/18Dennis BaldocchiUC BerkeleyHow much water is evaporated across California during the booms and busts in rainfall?: Experiences from measuring and modeling evaporation across California between 2000 and 2017Abstract
10/17/18Boyi WangUCLA
Imaging 2D structures of transient and localized solar wind-magnetosphere interaction
10/24/18Cecilia BlitzUniversity of WashingtonDrivers of Souther Ocean climate change in recent decadesAbstract
10/31/18Victor Pinto UCLAInfluence of the Solar Wind in the dynamics of relativistic electrons on the Earth’s Radiation BeltsAbstract
11/07/18Spencer HillUCLABack to the basics for monsoons, Hadley cells, and rotating tanksAbstract
11/14/18Harlan SpenceUniversity of New HampshireQ: Precipitation, Kelvin-Helmholtz Waves, and Turbulence – Atmospheric Science or Space Science? A: Both!Abstract
11/28/18Schafer SmithNew York UniversityThe role eddy stirring in structuring Arabian Sea oxygen distributions
12/05/18David RandallColorado State UniversityInteractions of convection and radiation under homogeneous boundary conditions on the sphere, with and without rotationAbstract

Spring 2018

06/13/18L. Ruby LeungPacific Northwest National LaboratoryModeling Mesoscale Convective Systems and their Large-scale Environments
06/06/18Gaby KatulDuke UniversityA universal scaling law for gas transfer velocities across complex interfaces
05/30/18Ryan McGranaghanJPLStudying the weather in space with Global Navigation Satellite Systems (GNSS) signals
05/23/18David DauhajreUCLASubmesoscale Currents in the Coastal Ocean
05/16/18David RidleyMITExploring the drivers and effects of multi-decadal changes in aerosol
05/09/18Yi-Hung KuoUCLAConvective transition statistics for climate model diagnostics
05/02/18Amy ClementsUniversity of Miami
Rethinking the Role of the Ocean in the Atlantic Multi-Decadal Climate Variability
04/25/18Joern CalliesCaltechSubmesoscale eddies in the abyssal ocean
04/18/18Becky AlexanderDate
L. Ruby Leung
Pacific Northwest National Laboratory

Gaby Katul
Duke University

Ryan McGranaghan

David Dauhajre

David Ridley

Yi-Hung Kuo

Amy Clements
University of Miami

Joern Callies

Becky Alexander

Alyson Santoro

Sulfate aerosol formation in polluted and pristine environments
04/04/18Alyson SantoroUC Santa BarbaraNitrification and nitrous oxide oxide production in open ocean and coastaloxygen deficient zones

Winter 2018

03/14/18Lynne TalleyScripps
03/07/18Kristen DavisUC IrvineFate of internal waves on a shallow shelf”
02/28/18Timu GallienUCLAUrban Coastal Flood Prediction: Beaches, Backshores and Bathtubs
02/21/18Tapio SchneiderCaltech
Expectations and surprises about climate feedbacks from low clouds
02/14/18Dilhara RanasingheUCLA
Effect of sound wall-vegetation combination barriers on pollution dispersion from freeways
02/07/18Sarah KapnickNOAAPotential for Seasonal Snowpack Prediction
01/31/18Ann Marie CarltonUC Irvine
Aerosol optical thickness: conncecting surface mass to measurements from outer space
01/24/18David RompsUC Berkeley
The void: How the atmosphere’s humidity deficit sets cloud cover and storm intensity
01/17/18Kim PratherUC San Diego
Advancing our understanding of aerosol on clouds, climate, and precipitation over California”
01/10/18Tina ChowUC BerkeleyWind energy and the stable boundary layer

Fall 2017

11/27/18Marianna LinzUCLAThe Circulation of the Stratosphere from Observations
11/15/17Manabu ShiraiwaUC IrvineMultiphase chemistry of organic aerosols and reactive oxygen species in the atmosphere
11/01/17Ronal KworkJPLSea ice thickness from space: Why is it so difficult?
10/25/17Nina BednarsekNOAA/SCCWRPUsing pteropod in disentangling multiple stressor effects in the California Ecosystem
10/18/17Thomas LavauxPenn StateAtmospheric Inversion of Urban Greenhouse Gas Emissions
10/11/17Alan BarrecaUCLAAdapting to Climate Change: The Remarkable Decline in The Health Costs of Extreme Heat Over the 20th Century
10/04/17Juan LoraUCLA Westerlies, Atmospheric Rivers, and Moisture Transport to North America Since the Last Glacial Maximum

Related Seminars

Past AOS Seminars