Presentations

2022

Versatile effects of spatial resolution on modeling of nitrogen oxides, presented by Chi Li, American Geophysical Union Conference, Chicago, 16 Dec 2022.

Elemental Characterization of Ambient Particulate Matter for a Globally Distributed Monitoring Network: Methodology and Implications, presented by Xuan Liu, American Geophysical Union Conference, Chicago, 15 Dec 2022.

Advances in Simulating the Global Spatial Heterogeneity of Air Quality and Source Sector Contributions: Insights into the Global South, presented by Dandan Zhang, American Geophysical Union Conference, Chicago, 12 Dec 2022.

Improving representation of the AOD to PM2.5 relationship with a convolutional neural network, presented by Siyuan Shen, American Geophysical Union Conference, Chicago, 12 Dec 2022.

Update on the Surface Particulate Matter Network (SPARTAN) Operations for MAIA, presented by Randall Martin and Chris Oxford, MAIA Science Team Meeting, Pasadena, California, 14 Nov 2022.

Advancing Chemical Transport Modeling and Its Applications to Global Air Quality, presented by Randall Martin, Atmospheric & Environmental Chemistry (AEC) seminar, Harvard, 28 Oct 2022.

Progress and Applications of Satellite-Derived PM2.5, presented by Randall Martin, NASA Health and Air Quality Applied Science Team (HAQAST) Meeting, Madison, Wisconsin, 20 Oct 2022.

Parameterization of Aerosol Size of Organic and Secondary Inorganic Aerosol for Efficient Representation of Global Aerosol Optical Properties, presented by Haihui Zhu, 40th Annual AAAR Conference, Rayleigh, 3 Oct 2022.

Advances in simulating the spatial heterogeneity of air quality and source contributions using GCHP, presented by Dandan Zhang, Washington University in St. Louis, 10th International GEOS-Chem Meeting, June 2022

Applying Machine Learning to Improve the GEOS-Chem-based AOD-PM2.5 Relationship, presented by Siyuan Shen, Washington University in St. Louis, 10th International GEOS-Chem Meeting, June 2022

Application of GEOS-Chem in ‘Satellite-Derived’ PM2.5, presented by Aaron van Donkelaar, Washington University in St. Louis, 10th International GEOS-Chem Meeting, June 2022

Versatile effects of spatial resolution on modeling of nitrogen oxides, presented by Chi Li, The 10th International GEOS-Chem Meeting, St. Louis, June 7-10, 2022.

Versatile effects of spatial resolution on modeling of nitrogen oxides, presented by Chi Li, TEMPO Science Team Meeting, May 31, online, 2022.

Satellite Remote Sensing and Modeling of Air Quality, presented by Randall Martin, Academy of Science in St Louis, 19 May 2022.

Satellite-based Estimates of Fine Particulate Matter, presented by Randall Martin,Virtual Seminar, George Mason University, 25 April 2022.

Representativeness and Usefulness of Satellite and Ground-Based Data for Monitoring of Air Quality, presented by Aaron van Donkelaar, Health Effects Institute, Health Applications for Satellite-Derived Air Quality: Opportunities and Potential Pitfalls, April 2022

PM2.5: What it is and Why it Matters: Satellite-derived PM2.5, presented by Jeffrey Brook and Aaron van Donkelaar, Canadian Urban Environmental Health Research Consortium, CANUE Expert Webinar, February 2022

Interpreting Satellite Observations to Advance Understanding of Air Quality from Global toward Local Scales, presented by Randall Martin, Session at American Meteorological Society Conference, Houston, 25 Jan 2022.

2021

Effects of COVID-19 interventions on fine particulate matter concentrations, presented by Melanie Hammer, Royal Meteorological Society Atmospheric Chemistry Special Interest Group, November 2021

Fine Particulate Matter: Interpreting Satellite Observations to Advance Understanding for Health Applications, presented by Randall Martin, ASEEP Lecture, American Association for Aerosol Research plenary presentation, Virtual, 21 Oct 2021.

Current Status on Applying Aerosol Optical Depth to Understand PM2.5 at Regional to Global Scales, presented by Randall Martin, AeroSAT/AeroCom Virtual Conference, 15 Oct 2021

A Global-scale Mineral Dust Equation, presented by Xuan Liu, American Association for Aerosol Research Annual Conference, Virtual, Oct 2021

A Global-scale Mineral Dust Equation, presented by Xuan Liu, Atmospheric Optics: Aerosols, Visibility, and the Radiative Balance, A&WMA Visibility Specialty Conference, Oct 2021

Advancing Air Pollution Exposure Assessment with Satellite Remote Sensing and Chemical Transport Modeling, presented by Randall Martin, Virtual Seminar in Harvard School of Public Health, 23 Sep 2021.

Effects of COVID-19 lockdowns on fine particulate matter concentrations, presented by Melanie Hammer, Committee on Earth Observation Satellites, AC-VC Topical Seminar on “Covid-19 impact: what can be learnt from satellite observations and the emission changes?”, July 2021

Space-based Perspective on the Effects of COVID-19 Lockdowns on Fine Particulate Matter Concentrations, presented by Randall Martin, Committee on Earth Observation Satellites Webinar, 10 June 2021.

Perspectives on the Global Distribution of Fine Particulate Matter, presented by Randall Martin, AEROCOM virtual meeting, 2 March 2021.

Air Quality Assessment for Health Applications, presented by Randall Martin, NOAA Chemical Sciences Laboratory Seminar Series, 10 February 2021.

2020

Advancing Understanding of Air Quality from Global to Urban Scales, presented by Randall Martin, Frontiers of Atmospheric Science, American Geophysical Union Virtual Conference, December 2020.

Fine Particulate Matter and Global Health: An Integrated Modeling Approach to Quantify Sector and Fuel-Specific Sources of PM2.5 Mass and Mortality Across Global, National, and Urban Scales, presented by Erin McDuffie, American Geophysical Union Fall Meeting, December 2020

GEOS-Chem model overview, presented by Randall Martin, Joint keynote presentation with Daniel Jacob, 1st GEOS-Chem Europe Meeting, 1 September 2020.

Progressing from Global to Urban Scales for Air Quality Applications, presented by Randall Martin, Earth Science Information Partners Virtual Meeting, 15 July 2020.

Global Estimates of Long-Term Fine Particulate Matter Concentrations Derived from Multiple Data Sources, presented by Randall Martin, Committee on Earth Observation Satellites Webinar, 11 June 2020.

Connecting the Surface Particulate Matter Network (SPARTAN) with TOLNet and Pandora in Connection with Satellite Remote Sensing, presented by Randall Martin, 7th Annual NASA TOLNet and Pandora Project Science Team Workshop, Virtual Meeting, 3 June 2020.

Integration of Global and Local Datasets for Particle Composition Exposure, presented by Randall Martin, Health Effects Institute Meeting Webinar, 29 Apr 2020.

Air Quality and Planetary Health, presented by Randall Martin, Partnership for Air Quality, Climate, and Health Seminar, Colorado State University, 28 Feb 2020.

Satellite-based Insight into Air Quality through Application of GEOS-Chem, presented by Randall Martin, Atmospheric Chemistry Colloquim, Atmospheric and Environmental Chemistry Seminar, Harvard University, 7 Feb 2020.

Effects of a priori profile shape assumptions on comparisons between satellite NO2 columns and model simulations, presented by Matt Cooper, Atmospheric Science from Space Workshop, Canadian Space Agency, February 2020.

2019

Chemical Composition of PM2.5 from a Geophysical-Statistical Method that Combines Information from Satellites, Models, and Monitors, presented by Aaron van Donkelaar, American Geophysical Union Fall Meeting, San Francisco, CA, USA, Dec 9, 2019.

Estimated Long-term (1981-2016) Concentrations of Ambient Fine Particulate Matter across North America from Chemical Transport Modeling, Satellite Remote Sensing and Ground-based Measurements, presented by Jun Meng, American Geophysical Union Fall Meeting, San Francisco, December 10, 2019. 

An integrated modeling approach for identifying major sources and health impacts of PM2.5 in Asia, presented by Erin McDuffie, American Geophysical Union Fall Meeting, San Fransisco, CA, USA, December 2019

Uncertainties in future western U.S. wildfires and their impacts on air quality, presented by Junwei Xu, American Geophysical Union (AGU) Fall Meeting, San Francisco, December 13, 2019.

Measuring NO2 using satellites: Aerosol impacts & applications for air quality monitoring, presented by Matt Cooper, Washington University in St. Louis, November 2019.

An observationally-based correction for aerosol effects on NO2 column retrievals using the Absorbing Aerosol Index, presented by Matt Cooper, 2019 TEMPO Science Team Meeting, UW-Madison, June 2019.

High-performance GEOS-Chem (GCHP), presented by Randall Martin, IGC9, Harvard University, Boston, May 6, 2019.

Simulation of trace metals in PM2.5 over North America using the GEOS-Chem model, presented by Junwei Xu, IGC9, Harvard University, Boston, May 07, 2019.

Applying GEOS-Chem-TOMAS to understand Arctic marine secondary aerosol contributions to particle size distributions, presented by Betty Croft, IGC9, Harvard University, Boston, May 08, 2019.

Source contributions to ambient fine particulate matter for Canada using GEOS-Chem, presented by Jun Meng, IGC9, Harvard University, Boston, May 09, 2019.

2018

An observationally-based correction for aerosol effects on NO2 column retrievals using the Absorbing Aerosol Index, presented by Matt Cooper, American Geophysical Union Fall Meeting, Washington DC, 14 December 2018.

Simulation of airborne trace metals in PM2.5 over North America, presented by Junwei Xu, American Geophysical Union Fall Meeting, Washington DC, 10 December 2018.

Source contributions to ambient fine particulate matter for Canada, presented by Jun Meng, American Geophysical Union Fall Meeting, Washington DC, 10 December 2018.

Blending Biogeoscience and Environmental Health Research to Address Major Environmental and Public Health Challenges Such as Air Quality, presented by Randall Martin, Environmental Health Seminar at Boston University, Boston, 21 September 2018.

Update on the Surface Particulate Matter Network (SPARTAN) and Connections with MAIA, presented by Randall Martin, MAIA Science Team Meeting, Caltech, Pasadena, 8 August 2018.

Interpreting Satellite Observations of the OMI Ultraviolet Aerosol Index to Understand Aerosol Scattering and Absorption, presented by Melanie Hammer, 2018 Canadian Association of Physicists Congress, Dalhousie University, Halifax, 10 June 2018.[PDF presentation]

Assessing snow extent data sets to inform and improve trace gas retrievals from solar backscatter, presented by Matt Cooper, Canadian Meteorological and Oceanography Society 52nd Congress, Halifax, 12 June 2018.

Assessing snow extent data sets to inform and improve trace gas retrievals from solar backscatter, presented by Matt Cooper, TEMPO Science Team Meeting, Boulder CO, 7 June 2018.

Insight into Aerosols Worldwide with Implications for Air Quality, Health, and Climate, presented by Randall Martin, Opening Keynote at 36th International Technical Meeting on Air Pollution Modelling and its Application (ITM), Ottawa, 14 May 2018.

Exposure Estimation for MAPLE: Developing Predictability for Regions with Low PM2.5 and Few Monitors, presented by Randall Martin, Investigators Workshop at Health Effects Institute Meeting, Chicago, 2 May 2018.

Interpreting SPARTAN Composition Measurements with the GEOS-Chem model to Understand Sources Affecting PM2.5, presented by Crystal Weagle, 3rd International SPARTAN Meeting, University of Maryland, Baltimore, April 19, 2018.[PDF presentation]

Maximizing Information from a Single Filter, presented by Paul Bissonnette, 3rd International SPARTAN Meeting, University of Maryland, Baltimore, April 19, 2018.[PDF presentation]

SPARTAN Overview, presented by Randall Martin, 3rd International SPARTAN Meeting, University of Maryland, Baltimore, April 19, 2018.[PDF presentation]

Advances in Satellite Remote Sensing, Modeling, and Ground-based Measurements to Understand Atmospheric Aerosols Worldwide, presented by Randall Martin, Seminar in Energy, Environmental & Chemical Engineering Department, Washington University, 2 Feb 2018.

Exposure Estimation for MAPLE: Developing Predictability for Regions with Low PM2.5 and Few Monitors, presented by Randall Martin, Health Effects Institute Webinar, 26 January 2018.

2017

Global Fine Particulate Matter: Insight from Satellite Remote Sensing, Chemical Transport Modeling, and Ground-based Measurements, presented by Randall Martin, International Aerosol Modeling Algorithms Conference, 8 December 2017.

Insight into Global Fine Particulate Matter using Satellite Remote Sensing, presented by Randall Martin, Mailman School of Public Health, Columbia University, New York, 29 November 2017.

Global Fine Particulate Matter: Sources, Concentrations, Trends, and Health, Earth Science Colloquium, presented by Randall Martin, Lamont-Doherty Earth Observatory, Columbia University, New York, 13 October 2017.

Arctic, Birds, Smoke, and Climate: Understanding Processes Affecting Atmospheric Composition and its Implications, presented by Randall Martin, Ocean Climate Physics Division Seminar, Lamont-Doherty Earth Observatory, Columbia University, New York, 13 October 2017.

Challenges in Measuring and Modeling of Atmospheric Composition with Implications for Understanding Climate and Air Quality, presented by Randall Martin, Atmospheric Chemistry Gordon Research Conference, Sunday River, Maine, 31 July 2017.

Perspectives on Application of Satellite Remote Sensing for Ground-level Fine Particulate Matter, presented by Randall Martin, Filling the Gaps Meeting, World Bank, Washington DC, 26 July 2017.

Satellite Remote Sensing and Surface Measurements to Estimate Ambient Concentrations, presented by Randall Martin, Bloomberg Philanthropies, New York City, 11 May 2017. [PPT presentation]

Global Source Contributions to Ambient Particulate Matter, presented by Randall Martin, Bloomberg Philanthropies, New York City, 11 May 2017.

Progress in Application of Satellite Remote Sensing for Global Air Quality Assessment, presented by Randall Martin, World Health Organization, Madrid, 7 March 2017. [PPT presentation]

Implications of subgrid dry deposition of NO2 in a global chemical transport model, presented by Brian Boys, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017.

Processes controlling aerosol formation and growth in the summertime Arctic, presented by Betty Croft, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017.

4DVAR Assimilation of CALIOP Level 2 aerosol profiles with the adjoint of GEOS-Chem, presented by Colin Lee, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017.

Interpreting measurements of aerosol extinction and mass in North America, presented by Robyn Latimer, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017.

Comparing mass balance and adjoint methods for inverse modeling of nitrogen dioxide columns for global nitrogen oxide emissions, presented by Matt Cooper, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017. [PDF presentation]

Applying observations of the OMI Ultraviolet Aerosol Index to understand trends in aerosol absorption, presented by Melanie Hammer, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017. [PDF presentation]

Trends in chemical composition of global and regional population-weighted fine particulate matter over the recent 25 years, presented by Chi Li, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017. [PDF presentation]

Insight into the global distribution and chemical composition of PM2.5 from the SPARTAN Global Aerosol Network, presented by Crystal Weagle, The 8th International GEOS-Chem Meeting, Boston, May 1-4, 2017.

The role of MSA in Arctic atmospheric particle formation and growth, presented by Betty Croft, NETCARE/SOLAS Arctic DMS workshop, Institute of Ocean Sciences,Sidney, British Columbia, January 17-18, 2017. [PDF presentation]

2016

Satellite Remote Sensing of Air Quality: Methods and Insight, presented by Randall Martin, York University, Symposium on Integrating Atmospheric Chemistry and Physics from Earth to Space, 16 June 2016.[PPT presentation]

Insight into Global Fine Particulate Matter using Satellite Remote Sensing and Chemical Transport Modeling, presented by Randall Martin, Seminar at Harvard School of Public Health, Boston, 4 Feb 2016.

Connections of the Surface Particulate Matter Network (SPARTAN) with MAIA, presented by Randall Martin, MAIA Science Team Meeting, Caltech, 19 October 2016.

Processes controlling Arctic organic and other key aerosol components in the GEOS-Chem-TOMAS model, presented by Betty Croft, NETCARE 2016 Workshop, Toronto, Ontario, November 14-15, 2016. [PDF presentation]

Trace Metals in Fine and Coarse Aerosols: Emerging Results from SPARTAN, presented by Graydon Snider, Canadian Chemistry Conference, Halifax, NS, June 8, 2016. [PDF presentation]

Interpreting the Relationship Between Ground Level Fine Particulate Matter and Total-Column Aerosol Optical Depth with SPARTAN and a Global Chemical Transport Model, presented by Crystal Weagle. Canadian Chemistry Conference, Halifax, NS June 6, 2016 [PDF presentation]

Variation in Global Chemical Composition of PM2.5: Emerging Results from SPARTAN, presented by Graydon Snider. Canadian Chemistry Conference, Halifax, NS, June 6, 2016. [PDF presentation]

Observed Historical Trends in Atmospheric Haze Interpreted with a Global Chemical Transport Model, presented by Chi Li, Atmospheric Optics: Aerosols, Visibility, And The Radiative Balance, A&WMA Visibility Specialty Conference, September 27-30, 2016. [PDF presentation]

Contribution of Arctic Seabird-colony Ammonia to Atmospheric Particles and Cloud-Albedo Effect, presented by Betty Croft, 2016 International Global Atmospheric Chemistry Science Conference, Breckenridge, CO, September 26-30, 2016. [PDF Poster]

Satellite, Model and In Situ Fusion: Characterizing Global PM2.5 Exposure, presented by Aaron van Donkelaar, Yorum Kaufman Memorial Symposium, June 21-23, 2016. [PDF presentation]

Implications of Sub-Grid Dry Deposition of NO2 in a Global Chemical Transport Model, presented by Brian Boys, 99th Canadian Chemistry Conference, Halifax, NS, June 5-9, 2016.

Chemical PM2.5 Speciation in Major Cities Worldwide, presented by Graydon Snider, European Geophysical Union, Vienna, April 18, 2016. [PDF presentation]

Air Quality & Biosphere Interactions: Measuring and Modeling Global Change,presented by Jeffrey Geddes, Colorado State University Department of Civil and Environmental Engineering, Fort Collins, CO, March 1, 2016.

Air Quality & Biosphere Interactions: Measuring and Modeling Global Change, presented by Jeffrey Geddes, Boston University Department of Earth and Environment, Boston, MA, February 10, 2016.

2015

Processes controlling Arctic aerosol number and size: Seabird NH3 – climate connections, presented by Betty Croft, American Geophysical Union Fall Meeting, San Francisco, CA, December 14-18, 2015. [PDF poster]

Simulating the impacts of large scale insect- and disease-driven tree mortality on atmospheric chemistry, presented by Jeffrey Geddes, American Geophysical Union Fall Meeting, San Francisco, CA, December 14-18, 2015.

Processes controlling Arctic aerosol number and size: Seabird-climate connections, presented by Betty Croft, NETCARE 2015 Workshop, Toronto, Ontario, November 16-17, 2015. [PPT presentation]

Developing the GEOS-Chem model to interpret the seasonal and spatial variation of black carbon concentrations in the Arctic, presented by Junwei Xu, NETCARE 2015 Workshop, Toronto, Ontario, November 16-17, 2015.

Fire, Health, Birds, and Climate: Understanding Aerosols and their Implications Worldwide, presented by Randall Martin, Distinguished Lecturer Series at our Centre for Global Change Science, University of Toronto, Toronto, November 3 2015.

Combining the attributes of satellite observations and a chemical transport model to estimate surface PM2.5 for human exposure applications, presented by Randall Martin, NASA Applied Remote Sensing Training Webinar, October 22 2015. [PPT presentation]

Contributions of Arctic Seabird Colony NH3 Emissions to New Particles and Radiative Effects, presented by Betty Croft, 34th Annual American Association for Aerosol Research Conference, Minneapolis, Minnesota, October 12-16, 2015. [PDF presentation]

Interpreting the Ultraviolet Aerosol Index Observed with the OMI Satellite Instrument to Understand Absorption by Organic Aerosols: Implications for Atmospheric Oxidation and Direct Radiative Effects, presented by Melanie Hammer, U.S. OMI Science Team Meeting, October 15, 2015. [PDF presentation]

Processes Controlling the Seasonal Cycle of Arctic Aerosol Number and Size, presented by Betty Croft, AAAR 34th Annual Conference, Minnesota, October 13, 2015. [PPT presentation]

Recent Advances in Air Pollution Exposure Assessment, presented by Randall Martin, Rheumatic Disease and the Environment Workshop, Ottawa, 18 Sep 2015. [PPT presentation]

Updates on Inference of PM2.5 from Satellite Remote Sensing, presented by Randall Martin, 2nd Meeting of the Global Platform on Air Quality and Health, WHO-Headquarters, Geneva, 18 August 2015. [PPT presentation]

Air quality and biosphere-atmosphere interactions: Observations from space and in the field, presented by Jeffrey Geddes, University of Virginia Department of Environmental Science Seminar Series, Charlottesville, VA, August 27, 2015.

Exploring the impacts of large-scale tree mortality on atmospheric chemistry using modified land-atmosphere exchange in GEOS-Chem, presented by Jeffrey Geddes, Thirteenth Atmospheric Chemistry Colloquium for Emerging Senior Scientists, Brookhaven National Laboratory NY, August 1, 2015.

Development of TEMPO NO2 Algorithm to Infer Vertical Columns from Total Slant Columns, presented by Randall Martin, TEMPO Science Team Meeting, Huntsvill, AL, 27 May 2015. [PPT presentation]

Processes Controlling Arctic Aerosol Number and Size, presented by Betty Croft, The 7th International GEOS-Chem Meeting, Boston, May 4-7, 2015. [PDF presentation]

Interpreting the OMI ultraviolet Aerosol Index to understand absorption by organic carbon aerosols and implications for atmospheric oxidation, presented by Melanie Hammer, The 7th International GEOS-Chem Meeting, Boston, MA, May 4-7, 2015. [PDF presentation]

Combining GEOS-Chem, satellite, and ground monitors for improved PM2.5 population exposure estimates, presented by Aaron van Donkelaar, The 7th International GEOS-Chem Meeting, Boston, MA, May 4-7, 2015. [PDF presentation]

GEOS-Chem Interpretation of SPARTAN: A Network to Evaluate and Improve Satellite-Derived PM2.5, presented by Crystal Weagle, The 7th International GEOS-Chem Meeting, Boston, MA, May 4-7, 2015. [PDF poster]

Land Cover Change and Atmospheric Chemistry – Implementing a New Land Cover Module for GEOS-Chem, presented by Jeffrey Geddes, The 7th International GEOS-Chem Meeting, Boston, MA, May 4-7, 2015. [PDF presentation]

Assessing the Lightning NOx Parameterization in GEOS-Chem with HNO3 Columns from IASI, presented by Matthew Cooper, The 7th International GEOS-Chem Meeting, Boston, MA, May 4-7, 2015. [PPT presentation]

Estimating Ground-level PM2.5 in Eastern China Using Aerosol Optical Depth Determined from the GOCI Satellite Instrument, presented by Junwei Xu, The 7th International GEOS-Chem Meeting, Boston, MA, May 4-7, 2015. [PDF poster]

Global Fine Particulate Matter and Public Health: Links with the SPARTAN Network, presented by Randall Martin, seminar in Department of Physics at UMBC, Baltimore, Maryland, 17 April 2015. [PPT presentation]

Insight into Global Air Quality and Public Health by Interpreting Satellite Observations, presented by Randall Martin, Atmospheres Seminar, NASA Goddard, Greenbelt, Maryland, 16 April 2015. [PPT presentation]

Telling the Whole Story: Studying the Impacts of Atmospheric Nitrogen Oxides at Global, Regional, and Local Scales, presented by Jeffrey Geddes, University of California Riverside Department of Chemical and Environmental Engineering, Riverside, CA, February 4, 2015

Interpreting Satellite Observations to Assess Global Air Quality with Implications for Public Health (and Climate Processes), presented by Randall Martin, Department of Civil and Environmental Engineering Seminar Series, MIT, Cambridge, January 29, 2015. [PPT presentation]

Trends in ambient NO2 using satellite data and chemical transport modeling, presented by Jeffrey Geddes, Harvard-Smithsonian Center for Astrophysics Atomic and Molecular Physics Seminar, Cambridge, MA, January 12, 2015.

2014

Advances in Studies of Air Quality and Health Informed with Satellite Remote Sensing, presented by Randall Martin,American Geophysical Union Fall Meeting, San Francisco, CA. December 19, 2014. [PPT presentation]

Assessing the Parameterization of NOxEmissions By Lightning in a Chemical Transport Model with HNO3Columns from IASI, presented by Matthew Cooper,American Geophysical Union Fall Meeting, San Francisco, CA. December 18, 2014. [PDF presentation]

Estimating Ground-level PM2.5 in Eastern China Using Aerosol Optical Depth Determined from the GOCI Satellite Instrument, presented by Junwei Xu,American Geophysical Union Fall Meeting, San Francisco, CA. December 16, 2014. [PPT presentation]

Global Representation of Aerosol Vertical Structure and PM2.5 Concentrations from Satellite, presented by Aaron van Donkelaar,American Geophysical Union Fall Meeting, San Francisco, CA. December 16, 2014. [PDF presentation]

Integrating Satellite Observations, Chemical Transport Modeling, and Population Data to Estimate Ground-Level NO2 Exposure Worldwide, presented by Jeffrey Geddes,American Geophysical Union Fall Meeting, San Francisco, CA. December 15, 2014. [PDF poster]

Advancing Understanding of Air Quality and Climate Change Using High Performance Computing, presented by Randall Martin, Parliament Hill Event, Ottawa, 2 December, 2014.

Understanding the seasonal cycle of Arctic black carbon, presented by Andrew Morrow, NETCARE Workshop, Toronto, 4 November, 2014. [PPT presentation]

Processes Controlling the Seasonal Cycle of Arctic Aerosol Number and Size, presented by Betty Croft, NETCARE Workshop, Toronto, 4 November, 2014. [PPT presentation]

SPARTAN: An Emerging Global Aerosol Network, presented by Graydon Snider, American Association for Aerosol Research (AAAR) 33rd Annual Conference, Orlando, Florida, 22 October 2014. [PDF presentation]

Expanding A Global Aerosol Network, presented by Graydon Snider, CITEDEF, Buenos Aires, Argentina, 1 October, 2014. [PDF presentation]

SPARTAN: A Global Network to Evaluate and Enhance Satellite‐Based Estimates of Ground‐level Particulate Matter for Global Health Applications, presented by Graydon Snider, International Global Atmospheric Chemistry Conference, Natal, Brazil, 24 September, 2014. [PDF Poster]

Global Estimates of Fine Particulate Matter from Satellite, presented by Aaron van Donkelaar, High Performance Computing Symposium, Halifax, 27 June, 2014. [PDF presentation]

Changing Emissions of Cabonaceous Aerosol, presented by Nat Egan-Pimblett, High Performance Computing Symposium, Halifax, 25 June, 2014. [PDF presentation]

Fifteen Years of Global PM2.5 Estimates from Satellite, presented by Aaron van Donkelaar, Goldschmidt, Sacramento, California,10 June, 2014. [PDF presentation]

Simulation of Absorbing Aerosol Index & Understanding the Relation of NO2 Column Retrievals with Ground-based Monitors, presented by Randall Martin,TEMPO Science Team Meeting, NASA Langley, Virginia, 22 May 2014. [PowerPoint presentation]

Global Fine Particulate Matter Concentrations and Trends Inferred from Satellite Observations, Modeling, and Ground-Based Measurements, presented by Randall Martin,European Geosciences Union General Assembly, Vienna, Austria. April 30, 2014. [PowerPoint presentation]

Inference of PM2.5 from Satellite Remote Sensing, presented by Randall Martin and Aaron van Donkelaar,World Health Organization, Geneva, Switzerland. January 30, 2014. [PDF presentation]

SPARTAN: A New Global Aerosol Network, presented by Crystal Weagle, Ateneo de Manila University, Manila, Philippines, January 16, 2014. [PowerPoint presentation]

SPARTAN: A New Global Aerosol Network, presented by Crystal Weagle, Institute of Technology Bandung, Bandung, Indonesia, January 8, 2014. [PowerPoint presentation]

2013

Global Dry Deposition of Nitrogen Dioxide Inferred from Space-Based Measurements, Caroline Nowlan,American Geophysical Union Fall Meeting, San Francisco, CA. December 12, 2013. [PDF presentation]

Time series of satellite-based fine particulate matter (PM2.5) concentrations over China: 2004-2012, Guannan Geng,American Geophysical Union Fall Meeting, San Francisco, CA. December 11, 2013. [PowerPoint presentation]

Interpreting Aerosol Lifetimes Using the GEOS-Chem Model and Constraints from Radionuclide Measurements, Betty Croft,American Geophysical Union Fall Meeting, San Francisco, CA. December 13, 2013. [PDF presentation]

Global Estimates of Ambient PM2.5 Concentrations from Satellite AOD, Aaron van Donkelaar,VIIRS Aerosol Science and Operational Users Workshop, Greenbelt, MD. November 21, 2013. [PowerPoint presentation]

Aerosol Lifetimes at High Latitudes, Betty Croft,NETCARE Workshop 2013, University of Toronto, Toronto, ON, November 18, 2013. [PDF presentation]

Informing Health Studies of Fine Particulate Matter through Satellite Remote Sensing, Modeling, and Ground-Based Measurements, Randall Martin,Environmental Science and Engineering Seminar, Harvard University, Cambridge, MA. November 1, 2013. [PowerPoint presentation]

SPARTAN: A new global aerosol network, Graydon Snider,Indian Institute of Technology, Kanpur, India, October 29, 2013. [PDF presentation]

SPARTAN: A new global aerosol network, Graydon Snider,University of Dhaka, Dhaka, Bangladesh, October 28, 2013. [PDF presentation]

Spatially and Seasonally Resolved Estimate of the Ratio of Organic Matter to Organic Carbon, Sajeev Philip,AAAR 32nd Annual Conference, Portland, OR, October 2, 2013. [PDF presentation]

Sensitivity of global PM2.5-related premature mortality to local emissions, Colin Lee, TheConference of ISEE, ISES and ISIAQ: Environment and Health – Bridging South, North, East and West, Basel, Switzerland, August 20, 2013. [PDF presentation]

Top-Down Constraints on Emissions: Opportunities and Challenges from Satellite Observations of Atmospheric Composition, Randall Martin,China Emissions Workshop, Beijing, June 28, 2013. [PowerPoint presentation]

Global Air Quality: Insight from Satellite Remote Sensing and Modeling, Randall Martin,Seminars at Peking and Tsinghua University, Beijing, June 25 & 26, 2013. [PowerPoint presentation]

Satellites and Models: Terrabytes of Data at the Interface of Climate, Air Quality, and Public Health, Randall Martin,Plenary Presentation at High Performance Computing Symposium, Ottawa, June 4, 2013. [PowerPoint presentation]

Satellite Remote Sensing Observations of Low Ozone Events in the Tropical Upper Troposphere and Links with Convection, Matthew Cooper, The6th International GEOS-Chem Meeting, Boston, MA. May 6-9, 2013. [PDF presentation]

NO2 and SO2 dry deposition inferred from satellite measurements, Caroline Nowlan, The6th International GEOS-Chem Meeting, Boston, MA. May 6-9, 2013. [PDF presentation]

Insights on aerosol lifetimes and wet scavenging following the Fukushima nuclear accident, Betty Croft, The6th International GEOS-Chem Meeting, Boston, MA. May 6-9, 2013. [PDF presentation]

Sensitivity of global mortality to PM2.5 precursor emissions using the GEOS-Chem adjoint, Colin Lee,The6th International GEOS-Chem Meeting, Boston, MA. May 7, 2013. [PDF presentation]

Time series analysis of satellite derived PM2.5, Brian Boys, The6th International GEOS-Chem Meeting, Boston, MA. May 7, 2013. [PDF presentation]

Optimal estimation of high resolution global PM2.5 concentrations using GEOS-Chem and MODIS, Aaron van Donkelaar, The6th International GEOS-Chem Meeting, Boston, MA. May 7, 2013. [PDF presentation]

An approach to select optimal GEOS-Chem timesteps, Sajeev Philip, The6th International GEOS-Chem Meeting, Boston, MA. May 6-9, 2013. [PDF presentation]

Global OM/OC inferred from AMS measurements with GEOS-Chem and OMI nitrogen oxide concentrations, Sajeev Philip, The6th International GEOS-Chem Meeting, Boston, MA. May 6, 2013. [PDF presentation]

2012

Time Series Analysis of Satellite-Derived PM2.5, Brian Boys, MISR User’s Meeting, Pasadena, CA. December 11, 2012. [PowerPoint presentation]

Regional and Seasonal Cycles of AOD and Precipitation from Satellite Retrievals and in a Global Climate Model: Uncertainty Associated with Convective Wet Scavenging Parameterizations for Aerosols Entrained above Cloud Base, Betty Croft, American Geophysical Union Fall Meeting, San Francisco, CA. December 3-7, 2012. [PDF presentation]

Time Series Analysis of Satellite-Derived PM2.5, Brian Boys, American Geophysical Union Fall Meeting, San Francisco, CA. December 4, 2012. [PowerPoint presentation]

Chemical Composition and Emission Sources of South Asian Fine Particulate Matter Estimated from Satellite Observations and a Chemical Transport Model, Sajeev Philip, American Geophysical Union Fall Meeting, San Francisco, CA. December 3, 2012. [PDF presentation]

Applications of Satellite Remote Sensing to Inform Air Quality Management, Randall Martin, American Geophysical Union Fall Meeting, San Francisco, CA. December 3, 2012. [PowerPoint presentation]

Improving the Accuracy of Daily Satellite-Derived Ground-Level Fine Aerosol Concentration Estimates for North America, Randall Martin, American Geophysical Union Fall Meeting, San Francisco, CA. December 3, 2012. [PowerPoint presentation]

Air Quality around the World: Insight from Satellite Remote Sensing and Modeling, Randall Martin, McGill University, 12 Nov 2012. [PowerPoint presentation]

Insight into Global Air Quality using Satellite Remote Sensing and Modeling, Randall Martin, Korean Ministry of Environment, Seoul, 10 Oct 2012. [PowerPoint presentation]

NO2 as an Indicator of Aerosol Pollution, Randall Martin, 3rd GEMS Workshop, Seoul, Korea, 9 Oct 2012. [PowerPoint presentation]

Monitoring and Modelling of PM2.5, Aaron van Donkelaar, Environmental Performance Index (EPI) workshop at Seoul, South Korea. October 4, 2012. [PowerPoint presentation]

Global Air Quality: Insight from Satellites and Models, Randall Martin, Faculty of Science Lecture, Dalhousie University, 11 September 2012. [PowerPoint presentation]

Satellite Remote Sensing of Global Air Quality, Randall Martin, Atmospheric Science Seminar, Cornell University, 18 May 2012. [PowerPoint presentation]

Strong Sensitivity of Aerosol Concentrations to Convective Wet Scavenging Parameterizations in ECHAM5-HAM, Betty Croft, HAMMOZ Workshop at ETH Zurich. March 27, 2012. [PowerPoint presentation]

Satellite remote sensing and global modeling of atmospheric chemistry: Application to global air pollution, Randall Martin, Chemistry Department Seminar at Saint Mary’s University, Halifax, Canada. January 20, 2012. [PowerPoint presentation]

2011

Application of satellite remote sensing to estimate global ambient fine particulate matter concentrations, Randall Martin, International Society of exposure Science 2011 Meeting, Baltimore, MD. October 24, 2011. [PowerPoint presentation]

Global air pollution inferred from satellite remote sensing, Randall Martin, Workshop on Atmospheric Chemistry and Health: current knowledge and future directions, Health Effects Institute, Boston, MA. October 12, 2011. [PowerPoint presentation]

Using Satellite Remote Sensing to Estimate Global Outdoor Air Pollution Exposure, Randall Martin, Workshop on Space Technology for Public Health Actions in the Context of Climate Change Adaptation, Montreal, QC. June 20, 2011. [PowerPoint presentation]

Global Air Pollution as Seen from Space, Randall Martin, Seminar at University of British Columbia, Vancouver, BC. June 8, 2011. [PowerPoint presentation]

PCW/PHEMOS: Weather, Climate, and Air Quality, Randall Martin, 45th CMOS Congress, Victoria, BC. June 7, 2011. [PowerPoint presentation]

Advances in Applying Satellite Remote Sensing to the AQHI, Randall Martin, 45th CMOS Congress, Victoria, BC. June 7, 2011. [PowerPoint presentation]

Satellite Remote Sensing of Global Air Pollution, Randall Martin, Plenary at 45th CMOS Congress, Victoria, BC. June 6, 2011. [PowerPoint presentation] [Video]

Air Quality Applications of Satellite Remote Sensing, Randall Martin, First Workshop on Satellite Observations for Air Quality Management, NCAR, Boulder, CO. May 9, 2011. [PowerPoint presentation]

Global Simulations of Aerosol Size-dependent In-cloud Scavenging, Betty Croft, GEOS-Chem User’s Meeting, Boston, MA. May 1, 2011. [PDF poster]

Evaluating Ozone Production Efficiency from Space, Matthew Cooper, GEOS-Chem User’s Meeting, Boston, MA. May 1, 2011. [PowerPoint presentation]

Space-based Estimates of Anthropogenic SO2 Emissions, Randall Martin, GEOS-Chem User’s Meeting, Boston, MA. May 2, 2011. [PowerPoint presentation]

Recent Advances in Applying Satellite Observations for Inverse Modeling of Surface NOx Emissions, Akhila Padmanabhan, GEOS-Chem User’s Meeting, Boston, MA. May 2, 2011. [PDF poster]

NOx Emissions from Power Plants in China: Bottom-up Estimates and Satellite Constraints, Siwen Wang, GEOS-Chem User’s Meeting, Boston, MA. May 2, 2011.PowerPoint presentation

Improving the Lightning NOx Source Using Satellite Observations and the Adjoint of GEOS-Chem, Nicolas Bousserez, GEOS-Chem User’s Meeting, Boston, MA. May 2, 2011. [PowerPoint presentation]

Evaluation of GEOS Mixed-layer Depths and Implications for GEOS-Chem Aerosol Simulations, Sajeev Philip, GEOS-Chem User’s Meeting, Boston, MA. May 2, 2011. [PDF poster]

Applying Satellite Remote Sensing and Modelling for Insight into Global Air Pollution and Emissions, Randall Martin, Environment Canada. March 30, 2011. [PowerPoint presentation]

Insight into Global Air Pollution and Emissions Using Satellite Remote Sensing and Modeling, Randall Martin, Seminars at UC Berkeley and NASA JPL. March 8 to 10, 2011PowerPoint presentation

Satellite Remote Sensing of Global Air Pollution, Randall Martin, Symposium on Air Quality and Health in Atlantic Canada: New Directions and Opportunities. February 16, 2011 [PowerPoint presentation]

2010

Application of Satellite Remote Sensing for Timely Updates to Emission Inventories and Constraints on Ozone Production, Randall Martin, American Geophysical Union Fall Meeting, San Francisco, CA. Dec. 17, 2010.[PowerPoint presentation]

Improving OMI NO2 Retrievals over Biomass Burning: Towards a Measurement-based AMF, Nicolas Bousserez, American Geophysical Union Fall Meeting, San Francisco, CA. Dec. 17, 2010. [PDF presentation]

Improving the Lightning NOx Source Using Satellite Observations: A 4D-var Analysis Approach, Nicolas Bousserez, American Geophysical Union Fall Meeting, San Francisco, CA. Dec. 2010. [PDF presentation]

Satellite Remote Sensing of Global Ground-level Air Quality, Randall Martin, A-Train Symposium, New Orleans, LA. Oct. 26, 2010. [PDF presentation]

Insight into Lower Atmospheric Composition from Remote Sensing and Modeling, Randall Martin, Coast-to-Coast Seminar Series, Interdisciplinary Research in the Mathematical and Computational Sciences Centre, Webcast. October 5, 2010. [PowerPoint presentation]

Observing Air Quality from Space, Randall Martin, Undergraduate Symposium, Dalhousie University, Halifax, Canada. September 25, 2010. [PowerPoint presentation]

Improving OMI NO2 Retrievals over Biomass Burning: Towards a Measurement-based AMF, Nicolas Bousserez, EOS AURA Science Team Meeting, Boulder, CO. Sept. 2010. [PowerPoint presentation]

Applications of Satellite Observations for Timely Updates to Global Anthropogenic NOx Emission Inventories, Lok Lamsal, EOS AURA Science Team Meeting, Boulder, CO. Sept. 2010. [PowerPoint presentation]

Improving Satellite Retrievals of NO2 in Biomass Burning Regions, Nicolas Bousserez, IGAC Conference, Halifax, Canada. July 2010. [PDF presentation]

Retrieval and Analysis of Vertical Columns of Sulfur Dioxide over South America and Central Chile, Felix Carrasco, IGAC Conference, Halifax, Canada. July 2010. [PDF presentation]

Evaluation of Satellite Retrievals of O3 and HNO3 in the Upper Troposphere: Application to Ozone Production Efficiency, Matthew Cooper, IGAC Conference, Halifax, Canada. July 2010. [PowerPoint presentation]

Aerosol Processing in Convective and Stratiform Clouds in the ECHAM5-HAM GCM, Betty Croft, IGAC Conference, Halifax, Canada. July 2010. [PDF presentation]

Application of Satellite Observations for Timely Updates to Bottom-up Global Anthropogenic NOx Emission Inventories, Lok Lamsal, IGAC Conference, Halifax, Canada. July 2010. [PowerPoint presentation]

Space-based Constraints on Global SO2 Emissions and Timely Updates for NOx Inventories, Randall Martin, IGAC Conference, Halifax, Canada. July 2010. [PowerPoint presentation]

Global Estimates of Ambient Fine Particulate Matter Concentrations from Satellite-Based Aerosol Optical Depth: Development and Application, Aaron van Donkelaar, Poster Presentation, IGAC Conference, Halifax, Canada. July 2010. [PowerPoint presentation]

Characterizing Mineral Dust Aerosol in the Upper Troposphere, Aldona Wiacek, Poster Presentation, IGAC Conference, Halifax, Canada. July 2010. [PowerPoint presentation]

Some Applications of Satellite Remote Sensing for Air Quality: Implications for a Geostationary Constellation, Randall Martin, 5th Atmospheric Composition Constellation Workshop, Saint-Hubert, QC. March 30, 2010.[PowerPoint presentation]

Influences of In-cloud Scavenging and Cloud Processing on Aerosol Concentrations in ECHAM5-HAM, Betty Croft, HAMMOZ Meeting, ETH, Zurich, Switzerland. March 26, 2010. [PowerPoint presentation]

Global Climatology of Fine Particulate Matter Concentrations Estimated from Remote-sensed Aerosol Optical Depth, Aaron van Donkelaar, Air Pollution and Health: Bridging the Gap, San Diego, CA. March 24, 2010.[PowerPoint presentation]

Satellite Remote Sensing of Ground-level NO2: Application to New Brunswick, Randall Martin, Air Quality Health Index Meeting, Fredericton, New Brunswick, Canada. February 23, 2010.PowerPoint presentation

Influences of In-cloud Scavenging Parameterizations on Aerosol Concentrations and Deposition in the ECHAM5-HAM GCM, Betty Croft, CAFC Winter Meeting, Toronto, Canada. February 1, 2010. [PowerPoint presentation]

Global Climatology of Aerosol Optical Depth, Randall Martin, Cloud-aerosol Feedbacks and Climate Workshop, Toronto, Ontario, Canada. February 1, 2010. [PowerPoint presentation]

2009

Global Climatology of Fine Particulate Matter Concentrations Estimated from Remote-Sensed Aerosol Optical Depth, Aaron van Donkelaar, American Geophysical Union Fall Meeting, San Francisco, CA. December 14, 2009. [PowerPoint presentation]

Global Climatology of Fine Particulate Matter Concentrations Estimated from Remote-Sensed Aerosol Optical Depth, Aaron van Donkelaar, International Aerosol Modeling Algorithms, San Francisco, CA. December 11, 2009.PowerPoint presentation

Overview of Boundary Layer including Surface Science (BLiSS) Activities in Canadian Universities & Some Emerging Remote Sensing Capabilities, Randall Martin, Canadian Space Agency (CSA), Saint-Hubert, QC. December 2, 2009. [PowerPoint presentation]

Evaluation of tropical upper tropospheric ozone from ACE-FTS and MAESTRO: Estimation of ozone production efficiency, Matthew Cooper, ACE-FTS Science Team Meeting, University of Waterloo, Ontario. October 29, 2009. [PowerPoint presentation]

Constraints on the Production of Nitric Oxide by Lightning as Inferred from Satellite Observations, Randall Martin, ACE-FTS Science Team Meeting, University of Waterloo, Ontario. October 29, 2009. [PowerPoint presentation]

Satellite Remote Sensing of Ground-Level Air Quality, Randall Martin, Global Change Symposium, University of Toronto, Canada. October 22, 2009. [PowerPoint presentation]

Surface Reflectivity from OMI: Effects of Snow on OMI NO2, G. O’Bryne, Poster Presentation, Aura Science Team Meeting, Leiden, the Netherlands. September 16, 2009. [PowerPoint presentation]

Retrieval of Vertical Columns of Sulfur Dioxide from SCIAMACHY and OMI: Air Mass Factor Algorithm Development, Validation, and Error Analysis, C. Lee, Poster Presentation, Aura Science Team Meeting, Leiden, the Netherlands. September 16, 2009. [PowerPoint presentation]

Indirect Validation of Tropospheric Nitrogen Dioxide Retrieved from the OMI Satellite Instrument: Insight into the Seasonal Variation of Nitrogen Oxides at Northern Midlatitudes, L. Lamsal, Poster Presentation, Aura Science Team Meeting, Leiden, the Netherlands. September 16, 2009. [PowerPoint presentation]

Recent Developments in Satellite Remote Sensing of Air Quality Parameters, R. Martin, Aura Science Team Meeting, Leiden, the Netherlands. September 16, 2009. [PowerPoint presentation]

Improving Retrievals of Tropospheric NO2, R. Martin, Aura Science Team Meeting, Leiden, the Netherlands. September 16, 2009. [PowerPoint presentation]

Influences of Wet Scavenging on Aerosol Concentrations and Deposition in the ECHAM5-HAM Global Climate Model, B. Croft, Gordon Research Conference, August, 2009. [PowerPoint presentation]

Surface Reflectivity from OMI using MODIS to Eliminate Clouds: Effects of Snow on UV-Vis Trace Gas Retrievals, G. O’Bryne, OMI Telecon, August 21, 2009. [PowerPoint presentation]

Seasonal Variation of Nitrogen Oxides at Northern Midlatitudes as Inferred from Ground- and Satellite-based Observations, L. Lamsal, MOCA-09, Montreal, QC, Canada. July 28, 2009. [PowerPoint presentation]

The potential impact of mineral dust on cirrus (and other) cloud formation: trajectory modeling perspective, A. Wiacek, ETM, Zurich, Switzerland. July 24, 2009. [PowerPoint presentation]

Aerosol Size-Dependent Impaction Scavenging in Warm, Mixed, and Ice Clouds in the ECHAM5-HAM GCM, B. Croft, MOCA. July 21, 2009. [PowerPoint presentation]

Satellite Remote Sensing Estimate of Global Climatological Ground-level Aerosol Concentrations, R.V. Martin, Goldschmidt2009, Davos, Switzerland. June 23, 2009. [PowerPoint presentation]

Satellite-based Global Estimate of Ground-level Fine Particulate Matter Concentrations, A. van Donkelaar, Atmospheric Composition Constellation Workshop on Air Quality, Frascati, Italy. June 15, 2009. [PowerPoint presentation]

Retrieval of SO2 Vertical Columns from SCIAMACHY and OMI: Air Mass Factor Algorithm Development and Validation, C. K. Lee, American Geophysical Union Joint Assembly, Toronto, Canada. May 24, 2009.[PowerPoint presentation]

Satellite Remote Sensing of the Air Quality Health Index, R.V. Martin, CMOS 43rd Congress, Halifax, Canada. June 4, 2009. [PowerPoint presentation]

Global Simulations of Aerosol Impaction Scavenging with the ECHAM5-HAM GCM, B. Croft, Halifax, Canada. June 3, 2009.PDF presentation

Retrieval of SO2 Vertical Columns from SCIAMACHY and OMI: Air Mass Factor Algorithm Development and Validation, C.K. Lee, OMI Telecon. May 28, 2009. [PDF presentation]

Surface Reflectivity from OMI: Effects of Snow on OMI NO2 Retrievals, G. O’Byrne, AGU Joint Assembly, Toronto, Canada. May 25, 2009. [PDF presentation] Outstanding Student Paper Award

Retrieval of SO2 Vertical Columns from SCIAMACHY and OMI: Air Mass Factor Algorithm Development, C. Lee, GEOS-Chem User’s Meeting, Boston, MA. April 7, 2009. [PDF presentation]

Interpretation of OMI NO2 Observations During ARCTAS, N. Bousserez, GEOS-Chem User’s Meeting, Boston, MA. April 7, 2009. [PDF presentation]

Insight into processes affecting upper tropospheric ozone: interpretation of satellite (OSIRIS, MAESTRO, ACE) and in-situ observations, M. Cooper, GEOS-Chem User’s Meeting, Boston, MA. April 8, 2009. [PDF presentation]

Seasonal variation in nitrogen oxides at northern midlatitudes as inferred from ground-based and satellite-based observations, L. Lamsal, GEOS-Chem User’s Meeting, Boston, MA. April 8, 2009. [PDF presentation]

Global Ground-level PM2.5 Concentrations Inferred from MODIS and MISR Observations, A. van Donkelaar, GEOS-Chem User’s Meeting, Boston, MA. April 8, 2009. [PDF presentation]

Satellite Remote Sensing of a Multipollutant Air Quality Health Index, R.V. Martin, GEOS-Chem User’s Meeting, Boston, MA. April 8, 2009. [Powerpoint presentation]

Estimating PM2.5 from MODIS and MISR AOD, A. van Donkelaar, NASA Goddard Space Flight Center AeroCenter Seminar, Greenbelt, MD. March 24, 2009. [PowerPoint presentation]

2008

Satellite Remote Sensing of the AQHI, Fifth Canadian Workshop on Air Quality, Niagara Falls, Ontario, Canada. Nov. 20, 2008.

Satellite Remote Sensing of a Multipollutant Air Quality Health Index, Aura Science Team Meeting, Columbia, MD. October 30, 2008.

Development and Evaluation of SO2 Vertical Columns from OMI, Aura Science Team Meeting, Columbia, MD. October 27, 2008.

Satellite Remote Sensing of Ground-Level Air Quality, R.V. Martin, COSPAR, Montreal, QC, Canada. July 17, 2008.

Satellite Remote Sensing of Surface Air Quality, R.V. Martin, 2008 Joint Assembly, Fort Lauderdale, FL. May 26, 2008.

LongRange Transport of Asian Sulphate to Canada, R.V. Martin, Cloud-Aerosol Feedbacks and Climate Meeting, Toronto, Canada. March 31, 2008. [PowerPoint presentation]

Estimating Ground-level NO2 Concentrations from OMI Observations, R.V. Martin, OMI Blue Team Review, NASA Goddard, March 11, 2008. [PowerPoint presentation]

Interpretation of Satellite Observations of Tropospheric NO2: Implications for TROPOMI, R.V. Martin, TROPOMI Workshop, KNMI, the Netherlands. March 5, 2008. [PowerPoint presentation

Simulation of Below-cloud and In-cloud Aerosol Scavenging in ECHAM5-HAM, B. Croft, ETH Group Retreat, Einsiedeln, Switzerland. February 6, 2008. [PowerPoint presentation]

2007

Inferring Ground-level Nitrogen Dioxide Concentrations from OMI, L. Lamsal, American Geophysical Union Fall Meeting, San Francisco, CA. December 14, 2007. [PowerPoint presentation]

Long-range Transport of Asian Sulfate and Its Effects on the Canadian Sulfate Burden, A. van Donkelaar, American Geophysical Union Fall Meeting, San Francisco, CA. December 14, 2007. [PowerPoint presentation]

Trans-Pacific Transport of Ozone and Reactive Nitrogen During Spring, T. Walker, American Geophysical Union Fall Meeting Poster, San Francisco, CA. December 14, 2007. [PowerPoint presentation]

Ground-level NO2 Concentrations Inferred from OMI, R.V. Martin, Aura Science Team Meeting, Pasadena, CA. October 4, 2007. [PowerPoint presentation]

Successes and Challenges in Satellite Remote Sensing of Trace Gases for Air Quality Applications, R.V. Martin and F. Boersma, Aura Science Team Meeting, Pasadena, CA. October 2, 2007. [Powerpoint presentation]

Tropospheric NO2 Columns as a Top-down Constraint on NOx Emission Inventories, R.V. Martin, Workshop on Tropospheric NO2 Measured by Satellites, KNMI, the Netherlands, September 10, 2007. [PowerPoint presentation]

Relationship Between Ground-level NO2 Concentrations and OMI Tropospheric NO2 Columns, L. Lamsal, Workshop on Tropospheric NO2 Measured by Satellites, KNMI, the Netherlands. September 10, 2007.[PowerPoint presentation]

Transport of Ozone and Reactive Nitrogen during INTEX-B, T. Walker, Master’s Thesis Defense, Dalhousie University, Halifax, Canada. August 30, 2007. [PowerPoint presentation]

Observations of Long-range Transport, R.V. Martin and R. Scheffe, 3rd Meeting of Task Force on Hemispheric Transport of Air Pollution, Reading, UK. May 31, 2007. [PowerPoint presentation]

Space-based Insight into the Global Sources of Nitrogen Oxides with Implications for Tropical Tropospheric Ozone, R.V. Martin, Atmospheric Science Seminar at the University of Alabama at Huntsville. May 23, 2007.[PowerPoint presentation]

Long-range Transport of NOy and Ozone from Asia, T. Walker, GEOS-Chem User’s Meeting, Boston, MA. April 13, 2007. [PowerPoint presentation]

Constraints on Lightning NOx Emissions Inferred from Satellite Observations, R.V. Martin, GEOS-Chem User’s Meeting, Boston, MA. April 12, 2007.PowerPoint presentation

Development of the Bottom-up Soil NOx Inventory, N. Moore, GEOS-Chem User’s Meeting, Boston, MA. April 12, 2007. [PowerPoint presentation]

Surface Nitrogen Dioxide Concentrations Inferred from OMI, L. Lamsal, GEOS-Chem User’s Meeting, Boston, MA. April 12, 2007. [PowerPoint presentation]

Updates to Fossil-fuel Emissions and Long-range Transport of Sulfur to Canada, A. van Donkelaar, GEOS-Chem User’s Meeting, Boston, MA. April 11, 2007. [PowerPoint presentation]

Biomass Burning and Anthropogenic Emissions: Improving Bottom-up and Top-down Constraints, R.V. Martin and L. Emmons, NASA Meeting on Future Atmospheric Chemistry Missions, Virginia Beach, VA. March 8, 2007. [PowerPoint presentation]

Long-range Transport of NOy and O3 during INTEX-B: Satellite, Aircraft, and Model Perspectives, T. Walker, INTEX-B Meeting Poster, Virginia Beach, VA. March 6, 2007. [PowerPoint presentation]

Long-range Transport of Asian Sulfur Emissions to Canada, A. van Donkelaar, INTEX-B Meeting Poster, Virginia Beach, VA. March 6, 2007. [PowerPoint presentation]

Overview of the Canadian Contribution to INTEX-B, R.V. Martin, INTEX-B Meeting, Virginia Beach, VA. March 6, 2007. [PowerPoint presentation]

Global Simulations of Below-cloud and In-cloud Aerosol Scavenging, B. Croft, CAFC Winter Meeting, Toronto, Canada. January 18, 2007. [PowerPoint presentation]

Processes Driving O3 within the Troposphere, B. Sauvage, Harvard University, Cambridge, MA. January 12, 2007. [PowerPoint presentation]

2006

Global Production of Nitric Oxide by Lightning Inferred from Satellite Observations, R.V. Martin, AGU Conference, San Francisco, CA. December 14, 2006. [PowerPoint presentation]

Aerosol Size-dependent Below-cloud Scavenging in the ECHAM5-HAM GCM, B. Croft, AGU Conference Poster, San Francisco, CA. December 2006. [PowerPoint presentation]

Initial Results from the Canadian Component of the Intercontinental Chemical Transport Experiment (INTEX-B), R.V. Martin, IGAC Conference, Cape Town, South Africa. September 19, 2006. [PowerPoint presentation]

Tropospheric O3 Budget of the South Atlantic Region, B. Sauvage, IGAC Conference, Cape Town, South Africa. September 18, 2006. [PowerPoint presentation]

Space-Based Constraints on Lightning NOx Emissions, R. V. Martin, IGAC Conference, Cape Town. September 18, 2006. [PowerPoint presentation]

New Developments in Heterogeneous Aerosol Processes Affecting NOx and SO2, R. V. Martin, EPA/NOAA Workshop on Emerging Issues in the Atmospheric Chemistry of Nitrogen and Sulfur Oxides, Toronto, Canada. July 31, 2006. [PowerPoint presentation]

Using Satellite Data to Infer Surface Emissions and Boundary Layer Concentrations of NOx (and SO2), R.V. Martin, EPA/NOAA Workshop on Emerging Issues in the Atmospheric Chemistry of Nitrogen and Sulfur Oxides, Toronto, Canada. July 31, 2006. [PowerPoint presentation]

Satellite Constraints on Lightning NOx Emissions, R.V. Martin, 2006 Annual CMOS Congress, Toronto, Canada. June 1, 2006. [PowerPoint presentation]

Remote Sensing of Aerosol Single Scattering Albedo from Space-based Observations, R.-M. Hu, 2006 Annual CMOS Congress, Toronto, Canada. May 29, 2006. [PowerPoint presentation]

Interpretation of Satellite Observations of Tropospheric Aerosols and Trace Gases, R.V. Martin, Atmospheric Science Seminar, Fort Collins, CO. February 23, 2006. [PowerPoint presentation]

Estimation of Emission Sources Using Satellite Data, R.V. Martin, Workshop on Air Quality Remote Sensing from Space: Defining an Optimum Observing Strategy, NCAR, Boulder, CO. February 22, 2006. [PowerPoint presentation]

2005

Quantitative Interpretation of Satellite and Surface Measurements of Aerosols over North America, A. van Donkelaar, Thesis Defense. December 8, 2005. [PowerPoint presentation]

Global Retrieval of Aerosol Single Scattering Albedo from Satellite Observations, R.-M. Hu, AGU Fall Meeting, San Francisco, CA. December 5, 2005. [PowerPoint presentation]

Aircraft Platforms and Satellite Observations, R.V. Martin, Chilean Joint Symposium, Centro de Modelamiento Matemáco, Santiago, Chile. October 13, 2005. [PowerPoint presentation]

Satellite Observations of Tropospheric Gases and Aerosols, R.V. Martin, Workshop on Climate Change and Air Quality Interactions, Meteorological Service of Canada, Toronto, Canada. September 22, 2005. [PowerPoint presentation]

Retrieval and interpretation of UV/Vis satellite observations of tropospheric composition, R. V. Martin, Gordon Conference in Atmospheric Chemistry, Big Sky, MT. September 8, 2005. [PowerPoint presentation]

Satellite and Aircraft-based Constraints on NOx Emissions, R.V. Martin, ICARTT 2005 Data Analysis Workshop, University of New Hampshire, Durham, NH. August 10, 2005. [PowerPoint presentation]

Improving Emission Inventories using Space-based Measurements of Ultraviolet and Visible Radiation, R.V. Martin, Seminar at the Canadian Center for Climate Modelling and Analysis, Victoria, Canada. June 7, 2005.[PowerPoint presentation]

Space-based constraints on emission inventories of nitrogen oxides, R. V. Martin, Canadian Meteorological and Oceanographic Society Conference, Vancouver, Canada. May 30, 2005. [PowerPoint presentation]

Space-based Constraints on Emissions of Nitrogen Oxides, R.V. Martin, Joint Meeting of the National Emissions Processing Group (NEPG) and the Canadian Foundation for Climate and Atmospheric Sciences (CFCAS), Ottawa, Canada. May 10, 2005. [PowerPoint presentation]

Applying Space-based Measurements of Ultraviolet and Visible Radiation to Understand Tropospheric Composition, R.V. Martin, Seminar in the Physics Department, University of Toronto, Canada. May 2, 2005.[PowerPoint presentation]

Evaluating NOx Emission Inventories for North America and Beyond, R.V. Martin, GEOS-CHEM meeting, Cambridge, MA. April 5, 2005. [PowerPoint presentation]

Aerosol Simulation over North America, A.M. van Donkelaar, GEOS-CHEM Meeting, Cambridge, MA. April 5, 2005. [PowerPoint presentation]

Measuring Tropospheric NO2 from SCIAMACHY during INTEX and Improving NOx Emission Inventories, R.V. Martin, Workshop for Intercontinental Chemical Transport Experiment – North America, Virginia Beach, VA. March 30, 2005. [PowerPoint presentation]

Space-based Constraints on NOx Emissions and Aerosol Single Scattering Albedo, R.V. Martin, Meeting of the Multiscale Air Quality Modelling Network, York University, Toronto, Canada. February 15, 2005.[PowerPoint presentation]

2004

Ozone and Aerosols in the Lower Atmosphere, R.V. Martin, Seminar in the Physics Department, St. Francis Xavier University, Antigonish, Canada. November 26, 2004. [PowerPoint presentation]

Evaluating Lower Tropospheric Ozone Simulations Using GOME/SCIAMACHY/OMI Observations of NO2 and HCHO, R.V. Martin, Global Modeling Initiative Science Team Meeting, Boulder, CO. November 17, 2004.[PowerPoint presentation]

EMIS: Improve Emission Inventories of Environmentally Relevant Species, R.V. Martin, EMIS Science Team Meeting, Pease, NH. August 3, 2004. [PowerPoint presentation]

Space-based Diagnosis of Surface Ozone Sensitivity to Anthropogenic Emissions, R.V. Martin, Quadrennial Ozone Symposium, Kos, Greece. June 4, 2004.PowerPoint presentation

Satellite Remote Sensing of Ozone-NOx-VOC Sensitivity, R.V. Martin, American Geophysical Union Conference, Montreal, Canada. May 19, 2004. [PowerPoint presentation]

Using space-based observations to understand tropospheric ozone, R. V. Martin, Meteorological Service of Canada, Toronto. May 5, 2004. [PowerPoint presentation]

Using Space-based Observations to Improve Model Calculations of Transboundary Pollution Transport, R.V. Martin, 3rd Canadian Workshop on Air Quality, Quebec City, Canada. March 25, 2004. [PowerPoint presentation]

Sensitivity of Surface Ozone to Nitrogen Oxides and Volatile Organic Compounds, R.V. Martin, Seminar in the Chemistry Department, Dalhousie University, Halifax, Canada. January 23, 2004. [PowerPoint presentation]

2003

A Satellite Perspective of Tropospheric Chemistry, R.V. Martin, Seminar in the Department of Astronomy and Physics, Saint Mary’s University, Halifax, Canada. October 31, 2003. [PowerPoint presentation]

Global Inventory of Nitrogen Oxide Emissions Constrained by Space-based Observations of NO2 Columns, R.V. Martin, NARSTO Emission Inventory Workshop, Austin, TX. October 15, 2003.PowerPoint presentation

Validation of a Satellite Retrieval of Tropospheric Nitrogen Dioxide, R.V. Martin, Gordon Research Conference in Atmospheric Chemistry, Big Sky, MT. September 9, 2003. [PowerPoint presentation]

Interpreting Tropospheric Composition from Satellite Observations of Scattered Radiation, R.V. Martin, Atmospheric Chemistry Colloquium for Emerging Senior Scientists, Yellowstone, WY. September 6, 2003.[PowerPoint presentation]

Top-down Constraints on Emission Inventories of Ozone Precursors, R.V. Martin, MAQNet meeting, Montreal, Canada. August 7, 2003.JPG imagesPowerPoint presentation

Retrieval and Interpretation of Ozone Precursors Using the GOME Satellite Instrument, R.V. Martin, National Center for Atmospheric Research (NCAR), Boulder, CO. July 11, 2003. [JPG images] [PowerPoint presentation]

GEOS-Chem Model Applications at the Smithsonian Astrophysical Observatory and Dalhousie University, R.V. Martin, Harvard University, Cambridge, MA. June 2, 2003. [JPG images] [PowerPoint presentation]

Inventory of Nitrogen Oxide Emissions Derived from Space-based Observations of NO2 Columns, R.V. Martin, European Geophysical Society (EGS) conference, Nice, France. April 8, 2003. [JPG images] [PowerPoint presentation]

Retrieval and Interpretation of Satellite Observations of Tropospheric Composition, R.V. Martin, Civil and Environmental Engineering Seminar, MIT, Cambridge, MA. February 28, 2003. [JPG images] [PowerPoint presentation]

Constraining Emission Inventories Using Space-based Observations of Atmospheric Composition, R.V. Martin, Atmospheric Science Seminar, University of Washington, Seattle, WA. February 26, 2003. [JPG images] [PowerPoint presentation]

Improving Emission Inventories Using Space-based Observations of Atmospheric Composition, R.V. Martin, Aeronomy Lab, Boulder, CO. February 21, 2003. [JPG images] [PowerPoint presentation]

Research Priorities for Aerosol-chemistry Interaction, R.V. Martin, Chemistry Climate Interactions Workshop, Santa Fe, NM. February 11, 2003. [JPG images] [PowerPoint presentation]

Using Satellite Observations to Improve Emission Inventories, R.V. Martin, UCLA, Los Angeles, CA. January 31, 2003. [JPG images] [PowerPoint presentation]

Constraining Emissions with Satellite Observations, R.V. Martin, Dalhousie University, Halifax, Canada. January 9, 2003. [JPG images] [PowerPoint presentation]