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Departmental seminars

Departmental Seminars Speaker Archive

SPRING 2024

10 Jan 2024	Cancelled
17 Jan	Ralf Toumi Imperial College London	The Dependence of Tropical Cyclone Pressure Tendency on Size
24 Jan	Keisuke Nakao Central Research Institute of Electric Power Industry, Japan	Near-Surface Weather Research Applications for the Electric Industry
31 Jan	Abdullah Kahraman Newcastle University	Exploiting UKCP18 for future changes in convective hazards
7 Feb	Ramon Fuentes-Franco Swedish Meteorological and Hydrological Institute, Sweden	Global atmospheric response to Rossby wave sources over the Northeastern Pacific Ocean from a set of CMIP6 large ensembles
14 Feb	Cancelled
21 Feb	Simon Schaffer University of Cambridge	The empire of the heavens and the colonisation of climates
28 Feb	Cancelled
6 Mar	Jingyue Di & Wenyuan Tang National Meteorological Centre, China	The record floods in North China after Typhoon Doksuri in 2023
13 Mar	Chris Rapley University College London	Climate Change – Finding the Agency to Act
20 Mar	Marilena Oltmanns National Oceanography Centre	Shifting ocean currents, deflecting the jet stream, pushing European weather records – Tracing pathways of change in North Atlantic climate

AUTUMN 2023

27 Sep 2023	Cancelled
4 Oct*	Raffaele Sgarlato Hertie School, Germany	Weather-driven electricity systems: day-ahead electricity price forecasting
11 Oct	Maximiliano Viale Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales, Argentina	Orographic Precipitation in the Andes of Argentina and Chile
18 Oct	Mitch Moncrieff NCAR, USA	Dynamical-based Parameterization of Organized Convection for Global Climate Models
25 Oct	Cancelled
1 Nov	Liliana Macotela Cruz University of Bath	Latitudinal dependence of the fall-effect observed in the D-region and in the mesosphere
8 Nov	Shuai Hu Institute of Atmospheric Physics, Chinese Academy of Sciences, China	Mechanisms and predictability of summer precipitation variations in the Asian water tower
15 Nov	Cancelled
22 Nov	Timothy Hewson ECMWF	Extraordinary Cyclones in the Extratropics
29 Nov	Ziqiang Ma Peking University, China	Satellite Precipitation Measurement based on Chinese Fengyun Satellites
6 Dec*	Mariana Madruga de Brito Helmholtz Centre for Environmental Research − UFZ, Germany	Text mining in climate extremes research: from impacts to adaptation

SUmmer 2023

17 Apr 2023	Jan Wohland ETH Zurich, Switzerland	Climate Risks for Renewable Energy
24 Apr	(no seminar – EGU week)
2 May*	Brian Haddock Network Rail	Weather Management on the UK Rail network
9 May*	Tom Matthews King’s College London	Weather station observations reach the summit of Mt. Everest
15 May	Xiaocen Shen Institute of Atmospheric Physics, Chinese Academy of Sciences; University of Reading (internal/external seminar swap with Annica Ekman for 10 May)	Intraseasonal variability of the stratospheric polar vortex in northern and southern hemispheres: characteristics, mechanisms, and impacts
22 May	Mike Wallace University of Washington, USA	Exploiting Animations in Atmospheric Sciences Teaching and Research
30 May*	Siren Rühs Utrecht University, Netherlands	Robust estimates for the decadal evolution of Agulhas leakage from the 1960s to the 2010s

SPRING 2023

9 Jan 2023	Inez Ponce de Leon Ateneo de Manila University, Philippines	Going beyond information packaging in climate change communication
16 Jan	Martin De Kauwe University of Bristol	Can we predict drought-induced tree mortality?
23 Jan	Alison Ming University of Cambridge	Processes controlling year to year variability in the tropical lower stratosphere
30 Jan	Edmund Henley Met Office	Space weather forecasting at the Met Office
6 Feb	Will Gray IPSL Sciences Laboratory of Climate and the Environment (LSCE), France	Poleward shifts in the northern and southern westerly winds over the last deglaciation
13 Feb	Fiona Johnson University of New South Wales, Australia	Droughts and flooding rains: statistical post processing to better under future hydrological extremes
20 Feb	Juan Pedro Mellado González University of Hamburg, Germany
27 Feb	Christian Buckingham University of Massachusetts Dartmouth, MA, USA	Revisiting symmetric instability
6 Mar	Lea Svendsen Bjerknes Centre for Climate Research & University of Bergen, Norway	Pacific influence on Arctic Climate on decadal timescales
13 Mar	Vandana Singh Framingham State University, MA, USA
20 Mar	Diego Miralles Ghent University, Belgium	Land feedbacks and their influence on droughts and heatwaves

AUTUMN 2022

26 Sep 2022	Cancelled
3 Oct	Helen Ward University of Innsbruck	Using observations and modelling to advance understanding of atmospheric processes in complex environments
10 Oct	Benoit Meyssignac LEGOS, Midi-Pyrenees Observatory, Toulouse	Constraint on the climate feedback parameter and the equilibrium climate sensitivity from historical Earth energy imbalance observations
17 Oct	Cancelled
24 Oct	Cancelled
31 Oct	Jesse Reynolds Climate Overshoot Commission	The Climate Overshoot Commission: Reducing the risks of exceeding global warming goals
7 Nov	Lucy Barker UK Centre for Ecology & Hydrology	Dynamic High Resolution Hydrological Status Monitoring in Real-Time: The UK Water Resources Portal
14 Nov	Woosok Moon Pukyong National University, South Korea	Wavier jet streams driven by zonally asymmetric surface thermal forcing
21 Nov	Cancelled
28 Nov	Alan Geer ECWMF	The importance of snow and ice microphysics when using satellite observations for weather forecasting
5 Dec	Song Chen Meteorological Service Singapore	High resolution urban modelling at the Centre for Climate Research Singapore

SUMMER 2022

25 Apr 2022	Cancelled
3 May	Matt Patterson University of Oxford	The role of external forcing in seasonal forecasts of European summer temperature
9 May	David Thompson University of East Anglia / Colorado State University	Understanding two key aspects of surface temperature variability
16 May	Amanda Maycock University of Leeds	Characterising present day and future North Atlantic atmospheric circulation
23 May	Qiang Fu University of Washington	Stratospheric ozone and stratosphere-troposphere exchange in the Last Glacial Maximum
30 May	Thomas Dubos LMD Polytechnique	A systematic approach to the formulation of geophysical equations of motion
6 Jun	Paulo Ceppi Imperial College London	Observational evidence that cloud feedback amplifies global warming
21 Jun	Masaki Satoh University of Tokyo	Evaluation of cloud and precipitation processes of NICAM toward a global large-eddy simulation: research activities with NICAM on the supercomputer Fugaku

SPRING 2022

10 Jan 2022	Jonathan Wilkinson Met Office	What insights can be found when comparing synoptic weather patterns to lightning activity in Britain and Ireland?
17 Jan	M. Marcello Miglietta ISAC-CNR	Mediterranean tropical-like cyclones (Medicanes)
24 Jan	Cancelled
31 Jan	Maximilian Kotz Potsdam Institute for Climate Impact Research	The economic cost of climate change – resolving the locality of climate impacts in time and space
7 Feb	Alberto Arribas Microsoft	A changing climate? AI, net-zero, climate risk …
14 Feb	Cancelled
21 Feb	Johanna Baehr University of Hamburg	Seasonal climate predictions: why sometimes less is more
28 Feb	Cancelled
7 Mar	Pavel Berloff Imperial College London	Oceanic Eddy-Induced Transport: Full-Tensor Approach
14 Mar	Karen McKinnon University of California, Los Angeles	What can we learn about future continental climate from the historical record? A story of the signal and the noise
21 Mar	Marika Holland NCAR	The Emergence and Transient Nature of Arctic Amplification

AUTUMN 2021

27 Sep 2021	Jeff Walker Monash University	Towards next-generation soil moisture mapping technology
4 Oct	Tim Woollings University of Oxford	The role of Rossby waves in polar weather and climate
11 Oct	Cancelled
18 Oct	Ian Eisenman University of California, San Diego	Two Antarctic sea ice enigmas and proposed explanations
25 Oct	Cancelled
1 Nov	Jasper Kok University of California, Los Angeles	The mysterious abundance of coarse desert dust in Earth’s atmosphere
8 Nov	Cancelled
15 Nov	Angela Morelli InfoDesignLab	Visualizing data for impact: a participatory journey from data to storytelling
22 Nov	Ivana Stiperski University of Innsbruck	Understanding turbulence in mountainous terrain
29 Nov	Panos Athanasiadis The Euro-Mediterranean Center on Climate Change	Glimpses on the role of North Atlantic SST gradients in forcing large-scale atmospheric circulation responses — results from two separate studies
6 Dec	Leo Hickman Carbon Brief	Climate Change in the Media – A journalist’s perspective

SUmmer 2021

19 Apr 2021	Cancelled
26 Apr	Caroline Hickman University of Bath	Facing the difficult truths of the climate emergency; apocalyptic disaster or transformational moment in history?
4 May	Rebecca Willis Lancaster University	More democracy, not less: The role of democratic participation for climate action
10 May	Ana Bastos MPI-BGC	Compound extreme events from an ecological perspective
17 May	Martin Palkovic ECMWF	Digital Twin of planet Earth – what does it mean for computing in meteorology?
24 May	Paul Holland BAS	Influence of anthropogenic forcing on thinning of the Antarctic Ice Sheet
1 Jun	Mary-Jane Bopape South African Weather Service	South African Weather Service weather and climate operations and research
7 Jun	James D. Doyle Naval Research Laboratory	Arctic Cyclones and the Influence on Short-Term Sea Ice Change and Moisture Transport
14 Jun	Sharanya J. Majumdar University of Miami	African Easterly Waves and Tropical Cyclogenesis: Mechanisms and Predictability

SPRING 2021

11 Jan 2021	Annika Reintges GEOMAR	Wind Stress-Induced Multiyear Predictability of Annual Sea Surface Temperature Anomalies in the Extratropical North Atlantic
18 Jan	Marie Drouard University Complutense of Madrid	Atmospheric blocking duration in the Northern Hemisphere
25 Jan	Cancelled
01 Feb	John Lynch University of Oxford	Agriculture’s contribution to climate change and mitigation
08 Feb	Tim Graham Met Office	Global Atmosphere-Ocean Coupled NWP at the Met Office: towards operations and future developments
15 Feb	Sarah Dry writer & science historian	How climate became global: the history of an idea in six lives
22 Feb	Cancelled
01 Mar	Christian Grams Karlsruhe Institute of Technology	Towards a dynamical understanding of predictability and forecast skill for weather regimes in the North Atlantic European region
08 Mar	Ann Webb University of Manchester	Maintaining Your Vitamin D Status: Climate vs Colour, Culture and Covid
15 Mar	Sebastian Sippel ETH Zurich	Characterizing and detecting climate signals in observations and models using statistical learning
22 Mar	Jennifer Catto University of Exeter	Stormy weather: understanding hazards from a weather system perspective

AUTUMN 2020

28 Sep 2020	Regina R. Rodrigues Federal University of Santa Catarina	Marine heatwaves in the South Atlantic in the context of compound extreme events in South America
5 Oct	Emily Grossman	Emergency on Planet Earth
12 Oct	Claudia Di Napoli University of Reading (Environmental Science)	The human side of heat extremes: climatology and forecasting of heatwave-related health hazards
19 Oct	Benjamin J. Murray University of Leeds	Cloud-phase climate feedback and the importance of ice-nucleating particles
26 Oct	Elizabeth A. Barnes Colorado State University	Viewing Climate Signals through an AI Lens
2 Nov	Laure Zanna New York University	Machine learning for physics-discovery and climate modeling
9 Nov	Maria-Paz Zorzano Mier Centre of Astrobiology, INTA/CSIC; Luleå University of Technology	Atmospheric observations of Mars, a multi-instrumental approach
16 Nov	Karina Williams Met Office	Water stress in the JULES land-surface model
23 Nov	Marta Marcos University of the Balearic Islands	Observations and drivers of coastal sea level extremes
30 Nov	Cancelled
7 Dec	Penny Maher University of Exeter	The flexible modelling framework for the Met Office Unified Model (Flex-UM)

SUMMER 2020

20 Apr 2020	Cancelled
27 Apr	Denis Sergeev University of Exeter	Atmospheric convection plays a key role in the climate of tidally-locked terrestrial exoplanets: insights from high-resolution simulations
4 May	Cristian Proistosescu University of Illinois	We do live in the global mean: equilibrium climate sensitivity controls uncertainty in regional warming over the 21st century
11 May	David Richardson ECMWF	Verification and diagnostics at ECMWF – how we evaluate and understand the performance of the ECMWF forecasting system
18 May	Stacey Hitchcock University of Melbourne	The Environments and Dynamics of Heavy-Rain-Producing Mesoscale Convective Systems
26 May	Flavio Lehner ETH Zurich	Partitioning and constraining uncertainties in climate projections
1 Jun	Eun-Pa Lim Bureau of Meteorology	The 2019 Southern Hemisphere polar stratospheric warming
8 Jun	Kalli Furtado Met Office	Evaluating and improving predictions of the east Asian climate: challenges and opportunities
15 Jun	Isla Simpson NCAR	Multi-decadal variability in the North Atlantic jet stream, its connection to SST variability and implications for decadal predictability in Western Europe
22 Jun	William Boos University of California, Berkeley	Monsoon depressions: mechanisms and trends of high-impact storms at the edge of the Tropics

SPRING 2020

13 Jan 2020	Yuri Shprits GFZ (Germany) & UCLA (USA)	Application of the meteorological tools to predict weather in space
20 Jan	Sonia Seneviratne ETH	Climate extremes at 1.5°C vs 2°C of global warming: The role of land processes
27 Jan	Nadine Unger University of Exeter	Air pollution impacts on the carbon cycle and climate
3 Feb	William Seviour University of Bristol	The impact of ozone depletion on Southern Ocean climate
10 Feb	Nils Wedi ECMWF	Earth System Modelling at ECMWF – Progress and Challenges
17 Feb	Rachel James University of Oxford	Should water managers in African countries prepare for wetter or drier futures? Analysing modelled processes to improve information for decision makers
24 Feb	Manuela Lehner University of Innsbruck	Transport and exchange in the mountain boundary layer
2 Mar	Kristian Strommen University of Oxford	Jet Latitude Regimes and the Predictability of the North Atlantic Oscillation
9 Mar	Florian Pappenberger ECMWF	The Megxit score: who is the best?
16 Mar	Seminar cancelled
23 Mar	Seminar cancelled

AUTUMN 2019

30 Sep 2019	Magdalena Balmaseda ECMWF	Current research challenges in the predictability at subseasonal and seasonal time scales
7 Oct	Yohan Ruprich-Robert Barcelona Supercomputing Center	The Atlantic Multidecadal Variablity: from its origins to its impacts
14 Oct	Andrew Gettelman NCAR	Through the Looking Glass: Cloud processes at the intersection of Climate Forcing and Feedback
21 Oct	Nigel Roberts Met Office @ Reading	How to make use of convection-permitting ensemble forecasts – development of the new probabilistic post processing system called IMPROVER
28 Oct	Lizzie Kendon Met Office	Future changes in extremes at convection-permitting scales
4 Nov	Cathy Hohenegger MPI Hamburg	Is convective organization more than candy for the eyes?
11 Nov	Irina Sandu ECMWF	How uncertainties in the representation of orography and its impacts affect the skill of weather forecasts
18 Nov	Guy Dagan University of Oxford	Constraining the spatial scale of precipitation changes due to anthropogenic forcing using an atmospheric water and energy budget perspective
25 Nov	Seminar cancelled
2 Dec	Seminar cancelled
9 Dec	Stephen English ECMWF	Recent trends and future prospects for the assimilation of observations in Earth System prediction

SUMMER 2019

29 April 2019	Daniel Partridge University of Exeter	A new approach for constraining the sources and transport of climate active aerosols over pristine regions in GCMs
7 May (Tuesday)	Andreas Fink Karlsruhe Institute of Technology	The challenge to predict rainfall in West Africa
13 May	Simon Dadson CEH Wallingford	Hydro-JULES: Next generation hydrological and land surface predictions
20 May	Roberta D’Agostino MPI Hamburg	Northern Hemisphere monsoon response to mid‐Holocene orbital forcing and greenhouse gas‐induced global warming
28 May (Tuesday, Nike LT Agriculture)	Cecilia Bitz University of Washington	Polar Regions as Sentinels of Different Climate Change
3 June	Gregor Leckebusch University of Birmingham	Understanding Variability of Severe Extra-Tropical Cyclones and Wind Storms
10 June	Wenmin Man Institute of Atmospheric Physics, Beijing	ENSO and hydroclimate responses to volcanic eruptions at different latitudes
24 June	Victoria Sinclair University of Helsinki	The response of extra-tropical cyclones to warming in idealised aqua-planet simulations

SPRING 2019

14 January 2019	Laure Zanna University of Oxford	Ocean Heat Uptake and Dynamic Sea Level: Past and Future Uncertainty
21 January	Maarten Ambaum University of Reading	Thermodynamic cycles in the stratosphere
28 January	Ian Boutle Met Office	It’s all a bit foggy: from forecast busts to climate forcing!
4 February	Piers Forster University of Leeds	Simple climate models: worth their weight in code?
11 February	Penny Holliday NOC, Southampton	Freshwater transport and storage in the subpolar North Atlantic
18 February	Chiara Marsigli DWD	Verification of convective-scale ensembles: open issues from developer’s and user’s perspective
25 February	Joeri Rogelj Imperial College London	The science of 1.5°C – from political call to IPCC Special Report
4 March	Chris Brierley University College London	Defining the preindustrial: impacts on exposure to warming and social justice
11 March	Paolo Davini Institute of Atmospheric Sciences and Climate, Bologna	Atmospheric blocking simulation in global climate models: yesterday, today and tomorrow.
18 March	Andreas Christen University of Freiburg	Using stable isotopes to attribute carbon dioxide sources in the urban atmosphere
25 March	Joe Galewsky University of New Mexico	The Drunkard’s Search: Constraining lower-tropospheric mixing with stable isotopologues of water vapor

AUTUMN 2018

1 October 2018	Maisa Rojas Corradi Universidad de Chile	Recent climate change in Chile: Anthropogenic drying megadrought and projections
8 October	Noel Keenlyside University of Bergen	Is it important to reduce climate model biases?
15 October	Chris Taylor CEH, Wallingford	Drivers of High Impact Weather in West Africa
22 October	Chiel van Heerwaarden Wageningen University	Simple models of convective aggregation and the role of the sea surface therein
29 October	Seminar cancelled
5 November	Bruce Ingleby ECMWF, Met Office	Radiosondes and Numerical Weather Prediction
12 November	Nick Watkins University of Warwick	Fluctuations and correlations: space weather and earth climate
19 November	Franco Marenco Met Office	Using lidar for aerosols and clouds, from aircraft and satellites: scientific and operational applications
26 November	Matt Rigby University of Bristol	Some challenges for the Montreal Protocol, identified in recent atmospheric observations of ozone depleting substances
3 December	Hans Linderholm University of Gothenburg	Reconstructing the jet stream
10 December	Bob Beare University of Exeter	A simple model of a balanced boundary layer coupled to a large-scale convective circulation

Summer 2018

16 April 2018	Florent Brient CNRM/MétéoFrance, Toulouse	Tropical marine stratocumulus and their influence on the climate system
23 April	No Seminar
30 April	Chris Lintott University of Oxford	Tales from the Zooniverse
8 May (Tuesday 1PM)	Adam Scaife Met Office	A signal to noise paradox in climate science
14 May	Andrew Ross University of Leeds (NCAS)	Forest canopy flows over hilly, heteorogeneous terrain – theory and experiments
21 May	Jean-Paul Vanderlinden CEARC, Paris	Transdisciplinary climate studies: experimenting localized integrated art-science-policy approaches to knowledge production, sharing, and use
29 May (Tuesday 1PM)	Peer Nowack Imperial College London	The representation of ozone in climate sensitivity simulations: from interactive chemistry to machine learning
4 June	Olivia Martius University of Bern	Recent hail research in Switzerland – the challenges and delights of complex orography and crowdsourced data

Spring 2018

Date	Speaker	Title
8 Jan	Euan Nisbet Royal Holloway University	Methane and the Paris agreement
15 Jan	Wei Chen Institute of Atmospheric Physics, Chinese Academy of Sciences	Anthropogenic influence on recent change in temperature extremes over China
22 Jan	Aidan Brocklehurst AON Benfield Impact Forecasting	A probabilistic catastrophe model for wind storms in Europe
29 Jan	Heather Graven Imperial College	Radiocarbon as a carbon cycle tracer in the 21st century
5 Feb	Stephen Thomson University of Exeter	Atmospheric responses to SST anomalies: background-state dependence, teleconnections, and local effects
12 Feb	Wendy Parker Durham University	Let’s not confirm (or falsify) our models
19 Feb	Ed Hawkins, Stephen Burt University of Reading	Operation Weather Rescue: to Ben Nevis and beyond
26 Feb	Michelle Cain Oxford Martin School, University of Oxford	Climate metrics under ambitious mitigation
5 Mar	Yoko Tsushima Met Office	Use of a Perturbed Parameter Ensemble to Understand Model Errors in Clouds and their Impact on Cloud Feedbacks
12 Mar	Jordi Vila	Evapotranspiration and cloud variability at regional sub-grid scales
19 Mar	Thomas Birner Colorado State University	The changing width of Earth’s tropical belt

Autumn 2017

Date	Speaker	Title
25 Sep	Stephen Yeager NCAR	Decadal climate prediction in the large ensemble limit
2 Oct	Jun-Ichi Yano CNRM, Toulouse	Tropical Atmospheric Madden-Julian Oscillation: Strongly-Nonlinear Free Solitary Rossby Wave?
9 Oct	Ivan Haigh NOC, University of Southampton	100 years of coastal flooding in the UK
16 Oct	Maria Rugenstein MPI Hamburg	Equilibrating GCMs – the difference between effective and equilibrium climate sensitivity
23 Oct	Derek Posselt JPL, Pasadena	The Role of Cloud Processes in Weather-Climate Interactions
30 Oct	Annica Ekman Stockholm University	Finding links between regional air pollution reductions and climate using the Norwegian Earth System Model
6 Nov	Jens Bange University of Tübingen	Using small unmanned research aircraft (UAV) for atmospheric turbulence measurements
13 Nov	Daniel McCoy University of Leeds	Insights into the effects of aerosols on cyclones from convection-permitting simulations
20 Nov	Stephen Briggs European Space Agency	Climate change – observations, indicators and response
27 Nov	Ed Gryspeerdt Imperial College	Causality in the atmosphere: How do aerosols influence clouds?
4 Dec	Dieter Scherer TU Berlin	Regional climate studies in High Asia – How to map a terra incognita?

Summer 2017

Date	Speaker	Title
18 Apr (Tuesday)	Gabriel Chiodo Columbia University, New York	On the importance of ozone feedbacks in the climate system
24 Apr	Hugo Lambert University of Exeter	Land-ocean shifts in tropical precipitation under climate change
2 May (Tuesday 1PM)	Peter Good Met Office	Nonlinear rainfall change: a tale of 2Ks
8 May	Tapio Schneider Caltech, Pasadena	How low clouds respond to warming: Observational, numerical, and physical constraints
15 May	Chris Bretherton University of Washington, Seattle	Ultraparameterization – global simulation of clouds with the grid resolution of large-eddy simulations
22 May	Mark McCarthy Met Office	The National Climate Information Centre: Accessing historical climate observations
30 May (Tuesday)	Hiro Masunaga University of Nagoya	A simple model of tropical convection with a moisture storage closure
5 Jun	Chris O’Reilly University of Oxford	Seasonal forecast skill of Northern Hemisphere winters over the 20th century

Spring 2017

Date	Speaker	Title
9 Jan	Jonathan Gregory	The inconstancy of transient climate response
16 Jan	Celia Petty Evidence for Development / Walker Institute	Mapping the impact of climate data on rural livelihoods: new work in sub Saharan Africa
23 Jan	Peter Read University of Oxford	Macroturbulent “cascades” of energy and enstrophy in models and observations of planetary atmospheres
30 Jan	Stephan Pfahl ETH Zurich	Understanding the regional pattern of changes in extreme precipitation in a warming climate
6 Feb	Estel Cardellach IEC Barcelona	Novel GPS applications for meteorology
13 Feb	Peter Janssen ECMWF	Ocean Waves and Extreme events
20 Feb	Yavor Kostov University of Oxford	Understanding Southern Ocean SST Trends in Historical Simulations and Observations
27 Feb	Annalisa Cherchi INGV, Italy	The South Asian monsoon and the Mediterranean: a multi-model analysis
6 Mar	Daniela Domeisen GEOMAR Kiel, Germany	Atmospheric blocking and the connection to the stratosphere
13 Mar	David Karoly University of Melbourne	An Australasian hockey stick and associated climate wars
20 Mar	Myles Allen University of Oxford	The carbon budget for 1.5 degrees: does meeting the goals of the Paris Agreement mean geoengineering?

Autumn 2016

Date	Speaker	Title
26 Sept	Julian Mak University of Edinburgh	Emergent eddy saturation from an energy constrained eddy parameterisation
3 Oct	Pu Lin GFDL	Understanding climate changes in the UTLS region in response to anthropogenic forcings
10 Oct	Richard Seager LDEO Columbia	The California Drought
17 Oct	Veronique Ducrocq Meteo-France and CNRS	Understanding and predicting convective storms
24 Oct	Dim Coumou PIK Potsdam	Extreme Weather and Atmosphere Dynamics
31 Oct	Thorsten Mauritsen MPI Hamburg	On the missing iris-effect
7 Nov	Jakob Runge Imperial College London	Causal inference methods in the geosciences
14 Nov	Alan Blyth NCAS Weather (Leeds)	Investigation of heavy rainfall in convergence-line convection over the SW peninsula of England
21 Nov	Kevin Trenberth NCAR	Implications of Earth’s energy imbalance for climate
28 Nov	Phil Gill Met Office	Development and verification of global aviation turbulence forecasts
5 Dec	Hannah Christensen Oxford	The curious success of a simple stochastic scheme in weather and climate models

Summer 2016

Date	Speaker	Title
18 Apr	Jim Haywood Met Office	The aerosol indirect effect: new evidence that second indirect effects are negligible
25 Apr	Ming Bao Nanjing University	Cluster analysis of Northern Hemisphere wintertime 500-hPa flow regimes during 1920-2014
3 May	Seminar cancelled
9 May	Joanna Haigh Imperial	The Earth’s entropy budget and climate change
16 May	Yohai Kaspi Weizmann Institute	Dynamics of eddy-driven jets and macroturbulent scales in the atmosphere
23 May	Gerd Folberth Met Office	The biosphere: More than just a boundary condition
31 May	Richard Forbes ECMWF	Microphysics Matters? A Global Perspective
6 Jun	Richard Rotunno NCAR	The Fluid Dynamics of Tornadoes

Spring 2016

Date	Speaker	Title
11 Jan	Philip Brohan Met Office	Heroism and disaster: two centuries of reanalysis
18 Jan	Thomas Melvin and Chris Maynard Met Office	LFRic and other animals: Designing and building a software infrastructure for a new dynamical core on Exascale Architectures GungHo! – A scalable dynamical core for weather and climate prediction
25 Jan	Pierre Gauthier Universite du Quebec a Montreal	Assessment of the dynamical balance of regional climate models using physical tendencies and data assimilation
1 Feb	Ray Pierrehumbert University of Oxford	Climate impact of beef production: An analysis without global warming potentials
8 Feb	Lucy Cradden University College Dublin	Wind energy generation in Ireland – meteorological patterns and their impacts on the power system
15 Feb	Paul Valdes University of Bristol	Tuning GCM’s with palaeoclimate data
22 Feb	Patrick Hyder Met Office	Air-sea exchange variability and its atmosphere/ocean model resolution-dependence in HadGEM3
29 Feb	Friederike Otto University of Oxford	Thermodynamics vs. dynamics – a holistic approach to extreme event attribution
7 Mar	Ileana Blade Mendoza University of Barcelona	The summer NAO in observations and CMIP models: impacts on precipitation and sea-ice projected trends
14 Mar	David Thompson Colorado State University	Estimating the role of internal climate variability in future climate trends
21 Mar	Samar Khatiwala University of Oxford	Constraining ocean ventilation pathways and time scales with observations and models

Autumn 2015

Date	Speaker	Title
28 Sep	Liam Brannigan University of Oxford	Intense PV mixing and nutrient upwelling in ocean anti-cyclones caused by submesoscale instabilities
5 Oct	Rupert Klein Freie Universitaet Berlin	Multi-scale asymptotic analyses of atmospheric motions
12 Oct	David Ridley MIT	Multi-decadal changes in aerosol: Insight into the drivers and effects of mineral dust, carbonaceous and volcanic sulphate particles
19 Oct	Stefan Siegert University of Exeter	Correlation and beyond: A recipe for forecast verification
26 Oct	Caroline Muller CNRS	Self-aggregation of atmospheric convection in idealized simulation
2 Nov	Thomas Spengler University of Bergen	Polar lows
9 Nov	Alejandra Sanchez-Franks NOCS	Impact of the Atlantic meridional overturning circulation on the decadal variability of the Gulf Stream path and regional chlorophyll and nutrient concentrations
16 Nov	Beth Ebert Bureau of Meteorology	How good is it? Improving how we assess forecasts
23 Nov	Sandra Chapman Warwick University	A data centred method to estimate and map changes in the full distribution of daily temperature and precipitation
30 Nov	Joseph Daron Met Office	Generating and communicating climate information to guide development and adaptation decisions in developing countries
7 Dec	Jan Zika Imperial College London	Observed amplification of the global water cycle and its impact on the energetics of the atmosphere

Summer 2015

Date	Speaker	Title
20 Apr	Stephen Briggs European Space Agency	Climate Observations and the Contribution of Space
27 Apr	Mark Webb UK Met Office	The impact of parametrized convection on cloud feedback
5 May	Wouter Berghuijs University of Bristol	Alteration of Mean Streamflow and Evaporation Under Snow Loss
11 May	Tobias Kuna and Steve Langdon University of Reading	Mathematical research with meteorological applications in Reading
18 May	Geoff Vallis University of Exeter	Response of the large-scale structure of the atmosphere to global warming
26 May	Tamsin Edwards The Open University	Potential sea level rise from Antarctic ice sheet instability constrained by observations
1 Jun	Chris Chen Imperial College London	Turbulence in the Solar Wind: Recent Advances
8 Jun	Michael de Podesta National Physical Laboratory	How do we really know what the temperature is?

Spring 2015

Date	Speaker	Title
12 Jan	Eugene Clothiaux Penn State University	Coherent Scattering from Cloud Drops and Ice Crystals
19 Jan	David Battisti University of Washington	The impact of Increased CO2 on Summertime Temperature Variability
26 Jan	Adam Levy University of Oxford	Rain, Brains and Climate Change: improving understanding of regional precipitation with medical image registration techniques
2 Feb	Ruth Doherty University of Edinburgh	TBC
9 Feb	Sheldon Bacon National Oceanography Centre	North Atlantic and Arctic Ocean Circulation and Fluxes
16 Feb	Cathryn Birch Met Office / University of Leeds	The role of convection in the water cycle of the West African Monsoon
23 Feb	Richard Scott University of St Andrews	Barotropic sudden warming and internal variability of the winter stratosphere
2 Mar	Ben Taylor Plymouth Marine Laboratory	The NERC Earth Observation Data Acquisition and Analysis Service (NEODAAS): Science, Support and Access
9 Mar	James Screen University of Exeter	Weighing the evidence for and against more frequent extreme midlatitude weather in response to Arctic warming
16 Mar	Craig Bishop Naval Research Laboratory	Climate model dependence and the Ensemble Dependence Transformation of CMIP projections
23 Mar	Steve Rumbold Met Office	Ammonium nitrate aerosol in UKESM1 — It’s a semi-volatile situation!

Autumn 2014

Date	Speaker	Title
29 Sep	Johannes Laube University of East Anglia	Newly detected ozone-depleting and greenhouse gases in the atmosphere
6 Oct	Cathy Hohenegger Max Planck Institute for Meteorology	Controls on and representation of land-atmosphere interactions across scales
13 Oct	Clara Deser National Center for Atmospheric Research	Uncertainty in climate change projections: the role of internal atmospheric circulation variability
20 Oct	Christoph Schaer ETH Zurich	Towards convection-resolving climate simulations
27 Oct	Edmund Henley UK Met Office	Thermospheric data assimilation
3 Nov	John Scinocca Environment Canada	The impact of model fidelity on climate projections and climate predictions
10 Nov	Aarnout Van Delden IMAU / Utrecht University	Diabatic-dynamical interaction in the general circulation of the atmosphere
17 Nov	Kwinten Van Weverberg UK Met Office	Evaluation of clouds in climate models using ARM-data: a time-step approach
24 Nov	Peter Cox and Chris Huntingford University of Exeter and Center for Ecology and Hydrology	Climate Variability: How it is changing and what it tells us about the future
1 Dec	Grae Worster University of Cambridge	Dynamics of marine ice sheets
8 Dec	Anne Mathers Lawrence University of Reading	Climate Patterns and Meteorological Disasters in Medieval Thought

Summer 2014

Date	Speaker	Title
28 Apr	Andy Elvidge University of East Anglia	Foehn warming and foehn jets: the Antarctic Peninsula as a natural laboratory
6 May	Adam Scaife UK Met Office	Long range predictability of the North Atlantic Oscillation
12 May	Sukyoung Lee Pennsylvania State University	A theory for polar amplification from a general circulation perspective
19 May	Chris Taylor Centre for Ecology and Hydrology (UK)	Understanding land impacts on weather using earth observation data
27 May	Elie Bou Zeid Princeton University	New insights into the dynamics of the stable atmospheric boundary layer from direct and large-eddy simulations
4 Jun	Steve Sherwood University of New South Wales	Rethinking the dynamics of convection from meso to thermal scale
9 Jun	Ellie Highwood and Simon Chandler-Wilde University of Reading	The Athena Swan Project
16 Jun	Helen Brindley Imperial College London	TBC
23 Jun	Tobias Zinner Ludwig Maximilians University Munich	3D cloud side remote sensing – Droplet radius and its link to aerosol properties
30 Jun	no departmental seminar	because of MSc oral exams
7 Jul	Olivia Romppainen-Martius University of Bern	Extreme weather events in Switzerland – story lines and processes

Spring 2014

Date	Speaker	Title
13 Jan	Detlef Mueller University of Hertfordshire	East Asian pollution observed with Raman Lidar in South Korea
20 Jan	Tyrone Dunbar UK Government, Department of Energy and Climate Change	TBC
27 Jan	Mike Herman New Mexico Institute of Mining and Technology	The Spectral Weak Temperature Gradient Approximation
3 Feb	Shuhua Chen University of California, Davis	Dust and weather
10 Feb	Nigel Fox National Physical Laboratory	Metrology for Earth Observation and Climate
17 Feb	David Marshall University of Oxford	A geometric framework for interpreting and parameterising geostrophic ocean turbulence
24 Feb	Adrian Raftery University of Washington	Probabilistic weather forecasting: recent developments in Bayesian model averaging
3 Mar	Afandi Darlington UK Government, Department for Transport, Air Accidents Investigation Branch	Weather — its role in aircraft accidents
10 Mar	Mai Mai Lam British Antarctic Survey	Response of the polar troposphere and stratosphere to changes in the global atmospheric electric circuit associated with solar wind variability
17 Mar	Jeurg Beer Swiss Federal Institute of Aquatic Science and Technology	TBC

Autumn 2013

Date	Speaker	Title
30 Sep (Nike LT)	Dennis Hartmann University of Washington	Trends and Variability in Southern Ocean Clouds and their Relation to Climate Change
7 Oct	John Thuburn University of Exeter	Mimetic Numerical Methods for Weather and Climate Prediction
14 Oct	Alex Chartier University of Bath	Ionospheric Data Assimilation and Forecasting
21 Oct	Gilbert Brunet Met Office	Sub-seasonal Predictability And Dynamical Processes: The Two-way MJO and NAO Interaction
28 Oct	Richard Seager Columbia University	The Importance of the Montreal Protocol for Protecting the Earth’s Hydroclimate
4 Nov	Kate Willett Met Office	The International Surface Temperature Initiative (ISTI): Dragging land surface temperature data kicking and screaming into the 21st Century
11 Nov	Jon Blower Reading e-Science Centre	The Hitchhiker’s Guide to Open Data
18 Nov	Stephen Blenkinsopp Newcastle University	Hourly and multi-hourly precipitation climatology in the UK and variability in extremes
25 Nov	Fiona O’Connor Met Office	Climate forcing from potential methane releases from permafrost, wetlands, and marine hydrates
2 Dec	Beatriz Monge-Sanz ECMWF	Is stratospheric air getting younger with time?
9 Dec	Lee Miller Max-Planck Institute for Biogeochemistry	Recent advancements in estimating power potentials and climatic impacts of renewable energy technologies

Summer 2013

Date	Speaker	Title
15 Apr	Shaun Lovejoy McGill University	Emergent atmospheric laws: Why the weather and the climate are not what you expect
22 Apr: Madejski LT	Tim Palmer University of Oxford	Stochastic Parametrisation: Six Reasons For, One reason against
29 Apr	Erland Källén ECMWF	Factors influencing skill improvements in the ECMWF forecasting system
7 May: Tuesday 1pm	Karen Heywood University of East Anglia	Ocean processes at the Antarctic continental slope – or five ways to lose a Seaglider?
13 May	Liz Morris Scott Polar Reseach Institute	Mukluks on the snow: ground truth experiments in support of CryoSat
28 May: Tuesday 1pm	Jean-Noel Thepaut ECMWF	Climate reanalysis at ECMWF
3 Jun	Richard Chandler University College London	Exploiting strength, discounting weakness: combining information from multiple climate simulators
10 Jun: 1pm	Andy Shepherd University of Leeds	A reconciled estimate of ice sheet mass balance
17 Jun	Erich Fischer ETH Zurich	Summer heat waves in a changing climate: Driving mechanisms, projections, uncertainties and impacts
24 Jun	Eric Guilyardi IPSL Paris/NCAS-Climate	Understanding ENSO in climate models: from statistics to process-based metrics
1 Jul	Sandy Harrison University of Reading	Evaluation of the CMIP5 simulations using palaeoreconstructions
22 Jul	Gang Chen Cornell University	Wave activity, eddy diffusivity, and the jet variability

Spring 2013

Date	Speaker	Title
7 Jan	Rym Msadek GFDL/NOAA and UCAR	Decadal predictions of Atlantic variability: promise and limitations
14 Jan	Byron Drew, Tony Ramsay MetraWeather	Commercial Meteorology
28 Jan	Alan Grant University of Reading	The Secret and Sordid World of Parametrization
4 Feb	Drew Purves Microsoft Research, Cambridge	Balanced Complexity modelling of the Terrestrial Carbon Cycle
11 Feb	Thordis Thorarinsdottir Norwegian Computing Center	Recovering the multivariate dependencies of statistically post-processed ensemble forecasts
18 Feb	Apostolos Voulgarakis Imperial College	Using composition-climate models to understand global and regional radiative forcing-response relationships
19 Feb Tuesday 1pm	Sandrine Bony LMD/CNRS	How much will future changes in tropical circulation and precipitation depend on global warming?
25 Feb	Michael McIntyre University of Cambridge	Some musings on science in general and atmospheric dynamics in particular, with remarks on differential rotation within the Sun and on Jupiter
4 Mar	Robin Chadwick Met Office	Spatial Patterns of Precipitation Change in CMIP5: Why the Rich don’t get Richer in the Tropics
11 Mar	Alan Thorpe ECMWF	Superstorm Sandy: best ever numerical weather prediction?
18 Mar	Isaac Held GFDL/NOAA	Some Approaches to Climate Theory

Autumn 2012

Date	Speaker	Title
15 Oct	Paul Bates Univeristy of Bristol	Observation and modelling of global surface water flows
22 Oct	Peter Hitchcock University of Cambridge	Arctic Polar-night Jet Oscillation Events
29 Oct	Jim Wild Lancaster University	Geomagnetically induced currents: a space weather hazard to electricity supply infrastructure
5 Nov	David Randall Colorado State University	Simulations of tropical variability with a super-parameterization
12 Nov	Steven Abel Met Office	Why does it always rain on me? Improving the representation of drizzle in the Unified Model
19 Nov	Kathryn McWilliams University of Saskatchewan	Influences of the Interplanetary Magnetic Field on the Earth’s Ionosphere
26 Nov	Todd Ringler Los Alamos National Laboratory	A Multi-Resolution Modeling Approach for Global Climate Simulation
3 Dec	Jane Mulcahy Met Office	Representation and impacts of aerosols in the Met Office global NWP model
10 Dec	Leon Hermanson Met Office	Enabling decadal prediction through the assimilation of the Atlantic Meridional Overturning Circulation at 26N

Summer 2012

Date	Speaker	Title
16 Apr	Paul O’Gorman MIT	The response of mean and extreme precipitation to climate change: theory, simulations, and observations
23 Apr	Glenn Shutts Met Office	Stochastic physics and its justification
30 Apr	Roger Stern Statistical Services Centre	Climatic variability and change – using the historical records to add extra value
8 May (Tuesday)	Stuart Webster Met Office	Kilometre-scale Unified Model simulations of super-typhoon Megi
21 May	Tamsin Mather University of Oxford	Volcanoes and their atmospheric impacts
28 May	Pavel Berloff Imperial College	Conundrum of geostrophic turbulence in the oceans: Multiple alternating jets, waves and vortices
11 Jun	Ray Bates University College Dublin	Climate stability and sensitivity in some simple conceptual models
19 Jun: 1pm (Tuesday)	Dmitry M. Sonechkin P. P. Shirshov Institute of Oceanology	On the role of natural factors in the current climate change: Climatic perspectives for nearest and more distant future
25 Jun	Anna Chuter University of Surrey	The analysis of DALEC, a simple carbon cycle model

Spring 2012

Date	Speaker	Title
16 Jan	Naomi Vaughan (Tyndall Centre for climate change research)	Could solar geoengineering help or hinder climate change mitigation
23 Jan	Timothy Gill (National Air Traffic Control Service)	Environment and airspace efficiency: NATS UK airspace
30 Jan	Seymour Laxon (University College London)	When will the Arctic become ice free?
6 Feb	Tim Andrews (Met Office)	Forcing, feedbacks and climate sensitivity in CMIP5 couple atmosphere-ocean climate models
13 Feb	Pascal Marquet (Meteo France)	On the use of different forms of available energies or exergy in Meteorology
20 Feb	Cyril Morcrette (Met Office)	Nephological conjuring: Do better clouds lead to better cloud scores?
27 Feb	Tim Jupp (University of Exeter)	On the visualisation, verification and recalibration of ternary probabilistic forecasts
5 Mar	Anja Schmidt (University of Leeds)	Large-scale icelandic flood lava eruptions: from aerosol microphysical processes to human health impacts
12 Mar	Christoph Gebhardt (DWD, Germany)	Limited-area Ensemble Prediction Systems: general aspects and the COSMO-DE EPS
20 Mar	Kevin Trenberth (NCAR, USA)	Climate extremes and climate change: The Russian Heat Wave and other Climate Extremes of 2010 and 2011

Autumn 2011

Date	Speaker	Title
10 Oct	George Bryan (NCAR)	Reconciling observations and numerical simulations of a mesoscale convective system
17 Oct	Ben Webber (University of East Anglia)	The Dynamical Ocean Component of the Madden-Julian Oscillation
24 Oct	Alina Barbulescu (Ovidus University of Constanta)	Models for precipitation and temperature evolution. Case study: the Black Sea region.
31 Oct	Annika Seppälä (British Antarctic Survey)	Solar effects on the polar atmosphere: The role of energetic particle precipitation
7 Nov	Gareth Thomas (University of Oxford)	Producing atmospheric aerosol data for climate science from satellite remote sensing
14 Nov	Kevin Horsburgh (National Oceanography Centre)	European storm surges in a future climate: where has all the weather gone?
21 Nov	John Marsham (University of Leeds)	Recent observations of elevated mesoscale convective systems in the UK and USA
28 Nov	Phillipe Keckhut (LATMOS)	Monitoring the middle atmosphere with lidar in complement with satellite observations
5 Dec	Pedro Miranda (University of Lisbon)	EC-Earth model development and results
12 Dec	David Southwood (Imperial College London)	Space in a Modern Society

Summer 2011

Date	Speaker	Title
3 May	Andrea Kaiser-Weiss (University of Reading)	Sea Surface Temperature as observed from space – limits and challenges
9 May	Gabi Hegerl (University of Edinburgh)	Causes of change in European climate over the last few centuries
16 May	Peter Knippertz (University of Leeds)	Dust Storms — A Great Challenge on the Way to Earth System Modelling
31 May	Bob Molinari (National Oceanography Centre, Southampton)	CLIVAR: The Present, Future and Research Opportunities
6 June	Mike Ellis (British Geological Survey)	Climate Change Research at the British Geological Survey
13 June	Oleg Saenko (Canadian Centre for Climate Modelling and Analysis)	Subduction and overturning in a warmer ocean
20 June	Kevin Horsburgh (National Oceanography Centre, Liverpool)	European storm surges in a future climate: where has all the weather gone?

Spring 2011

Date	Speaker	Title
17 January	Colm Caulfield (University of Cambridge)	Too much of a good thing? The efficiency of stratified mixing
24 January	Adrian Simmons (ECMWF)	Monitoring and short-term forecasting of atmospheric composition
31 January	James Tate (University of Leeds)	Trends in UK vehicle emissions: How conflicting PM10, NOX and CO2 priorities have led to ambient NOX and NO2 concentrations levelling off in recent years
7 February	Mark Macklin (University of Wales)	UK flooding and climate change: a long-term geomorphological perspective on adaption and mitigation
14 February	Myles Allen (University of Oxford)	Constraining future climate — from climateprediction.net to the trillionth tonne
21 February	Arnaud Czaja (Imperial College)	A new mechanism for ocean-atmosphere coupling in midlatitudes
28 February	Rodrigo Caballero (University College Dublin, Ireland)	Climate dynamics under supergreenhouse conditions in a GCM
7 March	Susan Solomon (NOAA ESRL, USA)	Antarctic and global climate change: Stratospheric connections
14 March	Martin Visbeck (IFM-GEOMAR, Germany)	Impact of the Southern Annual Mode on the Southern Ocean stratification and circulation
21 March	Tamsin Edwards (University of Bristol)	The power of the past: using palaeoclimate data to quantify uncertainties in climate prediction

Autumn 2010

Date	Speaker	Title
11 October	Mel Sandells (University of Reading, NCEO, ESSC)	From field site modelling to global observations of snow
18 October	Martin Widmann (University of Birmingham)	Correction of GCM-simulated precipitation
25 October	Matthias Zahn (University of Reading, ESSC)	Estimation of past and future polar low frequency over the North Atlantic
1 November	Ann Shelly (UK Met Office)	Overview of recent model development in medium range models at the Met Office
8 November	Phil Anderson (British Antarctic Survey)	Probing the Stable Boundary Layer: Challenges and emerging solutions
15 November	Adrian Lock (UK Met Office)	Boundary layer cloud modelling at the Met Office
22 November	Richard Greatbatch (IFM-GEOMAR, Kiel University, Germany)	Two major modes of variability of the East Asian Summer Monsoon and their possible origins
29 November	Harry Hendon (Centre for Australian Weather and Climate Research)	Role of air-sea interaction for seasonal prediction of the Australian Summer Monsoon
6 December	Suzanne Bevan (Swansea University)	A GLIMPSE of the Greenland Ice Sheet
13 December	Jacques Vanneste (University of Edinburgh)	Dispersion: the large-deviation regime

Summer 2010

Date	Speaker	Title
19 April	Colm Caulfield (University of Cambridge)	Too much of a good thing? Bounds on stratified mixing
26 April	Barbara Maher (Lancaster University)	Magnetic trees: a quantitative surrogate for particulate pollution
4 May	Roel Neggers (Royal Netherlands Meteorological Institute (KNMI))	Overlap statistics of boundary layer cumuliform cloud fields in large-eddy simulations
10 May	Elizabeth Kendon (UK Met Office)	Understanding extreme rainfall processes and the reliability of future projections
17 May	Michael Rogerson (University of Hull)	Timing and origin of humid events in Libya during the last glacial cycle: perspectives from radioisotopes and stalagmites
24 May	David Vaughan (British Antarctic Survey)	Ice climate and sea level rise: Science and myth
1 June	Ruediger Gerdes (Alfred Wegener Institute for Polar and Marine Research, Germany)	Recent and future changes in Arctic sea ice – Impacts on atmospheric and oceanic circulations
7 June	Ben Johnson (UK Met Office)	Measurement and modelling of dust aerosol
14 June	David Stevens (University of East Anglia)	High-resolution seasonal to decadal climate prediction
21 June	James Tate (University of Leeds)	Trends in UK passenger car emissions: The impact of conflicting particulate matter, nitrogen oxides and carbon dioxide priorities

Spring 2010

Date	Speaker	Title
11 January	Kerry Emanuel (Massachusetts Institute of Technology)	Hurricanes and Climate
18 January	Ian Mills (University of Reading, Chemistry)	Possible improvements for the International System of Units
25 January	Jon Blower and Alastair Gemmel (University of Reading, ESSC)	Interactive visualization and intercomparison of data on the web
1 February	Ole Peters (Grantham Institute, Imperial College)	The transition to convection
8 February	Chris Hughes (Proudman Oceanographic Laboratory)	Jets, eddies, waves and meanders from sea level measurements
15 February	Chris Davis (STFC Rutherford Appleton Laboratory)	Lightning, meteors and the global electric circuit
22 February	Erland Kallen (European Centre for Medium-Range Weather Forecasts)	Arctic warming – Coupling to atmospheric circulation changes
1 March	Alfonso Castrejon-Pita (Oxford University)	Synchronization in geophysical experiments, numerical models, and climate dynamics
8 March	Sandrine Bony (Laboratoire de Meteorologie Dynamique, Paris)	Towards the assessment of cloud and moist processes in climate models: Progress and prospects
15 March	Noora Eresmaa (Finnish Meteorological Institute)	Idealized 3-step method for mixing height estimation

Autumn 2009

Date	Speaker	Title
28 September	Ming Cai (Florida State University)	Dynamical polar warming amplification and a new climate feedback analysis framework
05 October	Helen Fairweather (Queensland Climate Change Centre of Excellence)	Responding to Climate Change in Queensland
12 October	Gavin Pretor-Pinney (Cloud Appreciation Society)	Collecting Clouds: Gavin Pretor-Pinney on the pleasures and importance of cloudspotting
19 October	Gareth Jones (Met Office Hadley Centre)	Influences on climate since the 1850s: the changing human and natural contributions to climate change
26 October	Thomas Kleinen (Max-Planck-Institute for Meteorology)	Testing hypotheses on Little Ice Age climate
02 November	Paul Connolly (University of Manchester)	Investigations into the formation of snowflakes in the Manchester Ice Cloud Chamber
09 November	Sarah Hallerberg (University of Chemnitz, Germany)	Extreme Events: The larger the better predictable?
16 November	Marc Bocquet (CEREA, Ecole des Ponts ParisTech)	Choosing the geometry of control space for an optimal assimilation of observations
23 November	Dargan Frierson (University of Washington)	Studies of the general circulation of the atmosphere with a simplified moist GCM
30 November	Klaus Fraedrich (Max-Planck-Institute for Meteorology)	Long term memory and 1/f-scaling in climate observations and models
07 December	Mark Ringer (Met Office Hadley Centre)	The use of GPS radio occultation for climate studies

Summer 2009

Date	Speaker	Title
20 April	Dave Frame (University of Oxford)	Science, decisions and climate mitigation policy
27 April	Brian Hoskins (Imperial College and University of Reading)	The UK Climate Change Committee
5 May Tuesday	Zhaomin Wang (British Antartic Survey)	Spin-up of Southern Hemisphere Subpolar Gyres in a Warming Climate
11 May	Holger Meinke (Wageningen University, Netherlands)	From climate data to ‘practical wisdom’ – the role of adaptation science for agricultural risk management
18 May	Geert van den Oldenburgh (KNMI, Netherlands)	Western Europe is warming much faster than expected
26 May Tuesday	Graeme Stephens (Colorado State University, USA)	The water cycle and energy balance of the Earth – what’s new?
1 June	Alfonso Castrejón-Pita (AOPP, University of Oxford)	Synchronization in geophysical experiments, numerical models, and climate dynamics
8 June	Sonia Garcia (University of Limerick, Ireland)	A different type of HARLIE machine
15 June	John Harries (Imperial College)	The Far Infrared Earth: water vapour feedback and planetary energy balance
22 June	Aiguo Dai (NCAR, USA)	Is the Water Vapor Feedback the Same in Nature and Models?

Spring 2009

Date	Speaker	Title
6 Jan TUES	John Marshall (MIT)	Thought experiments in climate and paleoclimate: speculations on the climate of an aquaplanet
8 Jan THUR	Geoff Vallis (GFDL, Princeton University)	Science in the Age of Models: Is Theory still Relevant in Climate Research?
12 Jan	()
19 Jan	Ken Carslaw (University of Leeds)	The global aerosol system: what can we learn from a new generation of global microphysics models?
26 Jan	Adam Scaife (Met Office)	A dynamical mechanism for European winter climate change
2 Feb	Zhaomin Wang (British Antarctic Survey)	Spin-up of Southern Hemisphere Subpolar Gyres in a Warming Climate
10 Feb TUES	Bert Holtslag (Wageningen University)	Achievements and ongoing work in the GEWEX Atmospheric Boundary Layer Study
16 Feb	Harm Jonker (Delft University of Technology)	Conditional instability of mesoscale structures in convective boundary layers
23 Feb	Heini Wernli (Universitat Mainz)	Mid-latitude dynamics, diabatic processes and the atmospheric water cycle
2 Mar	Philip Stier (AOPP, University of Oxford)	Assessment of the indirect aerosol effects in the latest generation global aerosol models
9 Mar	Jeff Knight (Met. Office)	The Atlantic Multidecadal Oscillation: GCM simulations, impacts and decadal predictions
16 Mar	Avi Lacser (Israel Institute for Biological Reasearch)	Urban Dispersion Modeling

Autumn 2008

Date	Speaker	Title
6 Oct	David McGloin (University of Dundee)	Plucked from thin air: Studying airborne particles using optical tweezers
13 Oct	Willem Sijp (University of New South Wales, Sydney)	The effect of along-isopycnal diffusion and diapycnal diffusion on North Atlantic Deep Water stability
20 Oct	Kai Christensen (University of Oslo)	Wave-induced drift and deformation of oil spills and natural sea slicks
27 Oct	Peter Liss (University of East Anglia)	Air-Sea Exchange of Trace Gases
3 Nov	Mike Lockwood (Rutherford Appleton Laboratory)	TBC
10 Nov	Christine Johnson (Met Office)	Medium-range multi-model ensemble combination and calibration
17 Nov	Mark Webb (Met Office Hadley Centre)	Towards understanding the differing cloud radiative response mechanisms in GCMs
24 Nov	Stan Yip (University of Exeter)	A Fast Bayesian method for updating hourly maps of ozone concentration levels by combining computer model output and observed station data
1 Dec	Angela Maharaj (Macquarie University, Sydney)	An assessment of multiple westward propagating signals in south Pacific sea level anomalies
8 Dec	()

Summer 2008

Date	Speaker	Title
14 April	Christian Franzke (British Antartic Survey)	Systematic Identification of Metastable Atmospheric Flow Regimes
21 April	David Thompson (Colorado State University)	Rethinking 20th century surface temperature variability
28 April	David Lawrence (NCAR)	Abrupt sea ice loss, accelerated Arctic land warming, and rapid permafrost degradation: Investigations into the coupled nature of Arctic climate change
6 May	Olivia Martius (ETH Zurich)	Breaking synoptic-scale Rossby waves in the tropopause region
12 May	Richard Neale (NCAR)	The Impact of Convection on El Nino: From a Delayed Oscillator to a Series of Events
19 May	Philippe Calliol (University of Sheffield)	Rossby wave nonlinear critical layers
27 May	Alberto Arribas (Hadley Centre, Met Office)	The new Met Office seasonal forecasting system: scientific challenges
2 June	Hugo Lambert (Hadley Centre, Met Office)	How much will precipitation increase with global warming?
9 June	Chris Taylor (CEH Wallingford)	Land-atmosphere interactions: new perspectives from the African Monsoon Multidisciplinary Analyses
16 June	David Thomson (Met Office)	The Met Office Atmospheric Dispersion Model “NAME”

Spring 2008

Date	Speaker	Title
7 Jan	Mat Collins (Hadley Centre, Met Office)	Probabilistic Predictions of Climate Change
14 Jan	Gabi Hegerl (University of Edinburgh)	Towards Detecting and Attributing Impact Relevant Climate Change
21 Jan	Richard Scott (University of St Andrews)	Internal Variability of the Winter Stratosphere
28 Jan	Gwendal Rivère (Météo-France, CNRM/GMAP/RECYF)	Barotropic Regeneration of Synoptic-scale Disturbances during Jet Crossing
4 Feb	Keith Browning (Emeritus Professor, University of Reading)	Why do thunderstorms form where they do?
11 Feb	Andrew Staniforth (Met Office)	Spherical coordinate systems for models of the global atmosphere
18 Feb	William Ingram (Atmospheric, Oceanic and Planetary Physics, University of Oxford)	Making Sense of the Water Vapour Feedback on Climate Change
25 Feb	Stephan Fueglistaler (Dept. of Applied Mathematics and Theoretical Physics, University of Cambridge)	Stratospheric Water Vapour and Climate
03 March	Chris Hilson (School of Law, University of Reading)	Climate Change – A Legal Perspective
10 March	Scott Osprey (Atmospheric, Oceanic and Planetary Physics, University of Oxford)	A New Light on Stratospheric Variability

Autumn 2007

Date	Speaker	Title
TUE 25 Sept	John Latham (University of Manchester & NCAR)	A scheme for controlled global cooling via the albedo-enhancement of marine stratiform clouds
1 Oct	Peter May (Bureau of Meteorology, Australia)	The Tropical Warm Pool International Cloud Experiment in Darwin – An overview and some early science results
8 Oct	Helen Brindley (Imperial College)	Estimating the direct radiative effect of Saharan dust using GERB and SEVIRI
15 Oct	Tim Lenton (University of East Anglia)	Tipping Points in the Earth System
22 Oct	Dudley Chelton (Oregon State University, US)	Global observations of oceanic eddies by satellite altimetry
29 Oct	Eric Deeleersnijder (Universite Catholique de Louvain, Belgium)	New developments and results of the Constituent-oriented Age and Residence time Theory (CART)
5 Nov	Ray Bates (University College, Dublin)	Some considerations of the concept of climate feedback
12 Nov	Peter Lynch (University College, Dublin)	The ENIAC forecasts: a re-creation
19 Nov	Manoj Joshi (University of Reading)	The mechanisms behind the land/sea warming contrast in climate change
26 Nov	Nina Petersen (University of East Anglia)	The Greenland Flow Distortion Experiment
3 Dec	Andrew Lorenc (Met Office)	4D-Var and the Butterfly Effect
10 Dec	Dave Thomson (Met Office)	The Met Office Atmospheric Dispersion Model “NAME” – CANCELLED

Summer 2007

Date	Speaker	Title
23 Apr	Claude Frankignoul (UPMC, France)	Simulated variability of the North Atlantic circulation from 1953 to 2003
30 Apr	Gavin Esler (University College, London)	The turbulent equilibration of an unstable baroclinic jet
Tuesday 8 May	Till Kuhlbrodt (Potsdam Institute, Germany)	A decrease of the North Atlantic thermohaline circulation – likelihood, impacts, and avoidance strategies
14 May	Franco Molteni (ECMWF)	Predictability estimates and forecast skill for tropical rainfall anomalies: results from the ECMWF seasonal forecast System-3
21 May	Geraint Vaughan (University of Manchester)	Aerosols, Chemicals and Deep Convection
Tuesday 29 May	Matt Sapiano (University of Maryland, US)	A new global analysis of precipitation
4 June	Steven Dobbie (University of Leeds)	The effect of absorbing aerosols on the microphysics of stratocumulus
11 June	Christophe Cassou (Cerfacs, France)	Role of the re-emerging SST anomalies on the winter-to-winter persistence of the NAO
18 June	Ken Mylne (Met Office)	Short-range Ensemble Forecasting with MOGREPS
25 June	Michael Vellinga (Hadley Centre, Met Office)	Interdependencies of northward ocean and atmosphere energy transports

Spring 2007

Date	Speaker	Title
15 Jan	Martin Juckes (Rutherford Appleton Laboratory)	Millennial temperature reconstruction evaluation and intercomparison
22 Jan	Jun-Ichi Yano (Meteo France)	How to ‘compress’ the climate system: multi-resolutional approaches for diagnoses and parameterisations
29 Jan	Dominic Kniveton (Sussex)	Searching for a solar-cloud fingerprint
05 Feb	Nick Brooks (East Anglia)	Lessons from the Past: Climate change, civilisation and the myth of progress
12 Feb	Agatha de Boer (East Anglia)	Atlantic dominance of the Meridional Overturning Circulation
19 Feb	Doug Smith (Met Office)	Decadal climate prediction: the impact of initial conditions
26 Feb	Roger Stone (Queensland)	Achieving best practice in agricultural climatological outputs
5 Mar	Marko Scholze (Bristol)	Including a simple fire representation in a Carbon Cycle Data Assimilation System \& A brief excurs on a risk analysis of world ecosystems
12 Mar	Michael Ponater (DLR Oberpfaffenhofen, Germany)	The climate effect of condensation trails: Beyond radiative forcing
19 Mar	Eric Wolff (British Antarctic Survey)	European Project for Ice Coring in Antarctica: 800,000 years of climate and environmental change from ice cores

Autumn 2006

Date	Speaker	Title
9 Oct	Nilton Renno (University of Michigan, visiting University of Oxford)	Atmospheric Vortices: Theory, Dust Transport, and Electrification
16 Oct	Peter Killworth (National Oceanography Centre)	Planetary wave response to surface forcing and to instability in the presence of mean flow and topography
23 Oct	Grae Worster (University of Cambridge)	The Fluid Dynamics of Sea Ice
30 Oct	Andy Morse (University of Liverpool)	Integrating application models – tropical disease – with probabilistic seasonal forecasts
6 Nov	Conny Schwierz (University of Leeds)	Assessing high-impact weather using event-based climatologies – heavy precipitation, blocking
13 Nov	Chris Wilson (Proudman Oceanographic Laboratory)	Oceanic and atmospheric storm tracks: the role of eddy vorticity forcing
20 Nov	Mathew Williams (University of Edinburgh)	Investigating the terrestrial carbon cycle and land-atmosphere interactions via model-data fusion
27 Nov	James Fleming (Colby College, Maine)	A History of Weather and Climate Control
4 Dec	Paul James (Met Office)	The application of objectively classified European Synoptic Regimes in Ensemble Forecasting and Climate Modelling
11 Dec	Judith Berner (ECMWF)	A Stochastic Energy Backscatter Scheme for the Simulation of Model Error in Ensemble Prediction Systems

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