Arctic pollution from Fires

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Presentation transcript:

Arctic pollution from Fires Arctic Air Pollution Workshop Theme 1 – What are the top 5 science areas we should focus on in the next 10 years? Arctic pollution from Fires Arctic haze

Questions to be prepared for: Which within-Arctic science areas require special attention? Are they missing from the survey results? Which science areas related to long-range pollution transport require special attention? Are they missing from the survey results? Which issues are driven by societal needs/benefits? Which issues would benefit from a collaborative approach ? You have the survey results, use them during the discussions!

Theme 1: Key Science Questions Session Aim: To establish major scientific issues over next 10 years that would benefit from collaborative efforts Session Chairs: Kathy Law/ Jennie Thomas (LATMOS-CNRS, Paris) 10:35 Survey results – Jennie Thomas/Kathy Law (LATMOS/CNRS) 10:40 Long-range transport of pollution to the Arctic - Louisa Emmons (NCAR) 11:00 Local Arctic air pollution – Jennie Thomas (LATMOS/CNRS) 11:20 Interactions of pollutants with natural cycles – Greg Huey (Georgia Tech.) 11:50 Introduction/Training to the World Café Process - Sandy Starkweather (CIRES/NOAA) Lunch

Theme 1: Science Questions Survey Results Kathy Law/ Jennie Thomas & organizing committee photo: NY Times photo: NASA photo: USGS photo: Gazprom

Anthropogenic emissions – influence on Arctic pollution Uncertain Asian (Eurasian/Russian) emissions Future scenario development (policy support) Globally consistent ship emissions inventory Natural emissions (ocean, fires, biogenics) photo: NY Times photo: NASA photo: USGS photo: Gazprom

Anthropogenic emissions – influence on Arctic pollution Long Range Transport Changing transport patterns – natural variability Understanding past trends (observations & models) + future changes Changing emissions (LRT vs local, present/future) Contribution of Asia vs. North America vs. Europe photo: NY Times photo: NASA photo: USGS photo: Gazprom

Anthropogenic emissions – influence on Arctic pollution Local pollution Emissions – shipping, oil/gas extraction, metal smelting, domestic combustion (local monitoring) – present + future Increasing local sources (socio-economic + climate drivers) Impacts of industrialization on climate, air quality (health) & ecosystems (other contaminants) Urbanization Active role for local communities photo: NY Times photo: NASA photo: USGS photo: Gazprom

Pollutant Distributions (Processes) (aerosols & trace gases) Common themes: Vertical distributions (poor model performance) Transport (residence times) (dynamics, processing) Seasonal and inter-annual cycles Surface vs free troposphere Wet and dry deposition photo: NY Times photo: NASA photo: USGS photo: Gazprom

Pollutant Distributions (Processes) (aerosols & trace gases) Scavenging processes (esp. BC – also others!) Deposition of BC on snow/ice Aerosols <-> clouds & radiative effects (microphysics) Decreasing sulfate <-> climate? Trace Gases (ozone + others) Chemical processing (oxidising capacity) Poor predictions (e.g. OVOCs, PAN) Roles of halogens (ozone destruction, chlorine, climate feedbacks) Biosphere interactions (deposition) photo: NY Times photo: NASA photo: USGS photo: Gazprom

Climate Change & Pollution Feedbacks between natural background and changing climate & anthropogenic perturbations Emissions and climate change (e.g. fires, biogenics, ocean/ice/snow emissions) Methane – climate-biosphere-atmosphere interactions photo: NY Times photo: NASA photo: USGS photo: Gazprom

Policy, local communities, and interfacing with stakeholders Acting with/ informing/finding solutions Quantifying pollution impacts Policy How to pass clear messages to policy makers? What policies will govern emissions in the Arctic? Interfacing with stakeholders How can we engage with social scientists, policy makers, industry, etc. while doing sound physical science? A major challenge now and in the future!

The how – coming in Theme 2 Do we need more routine measurements (ship based & aircraft) to adequately characterize pollution? Do we need large scale field studies to improve models? New partnerships (e.g. Russia, Asia, ….) photo: NY Times photo: NASA photo: USGS photo: Gazprom

Theme 1: Key Science Questions Session Aim: To establish major scientific issues over next 10 years that would benefit from collaborative efforts Session Chairs: Kathy Law/ Jennie Thomas (LATMOS-CNRS, Paris) 10:35 Survey results – Jennie Thomas/Kathy Law (LATMOS/CNRS) 10:40 Long-range transport of pollution to the Arctic - Louisa Emmons (NCAR) 11:00 Local Arctic air pollution – Jennie Thomas (LATMOS/CNRS) 11:20 Interactions of pollutants with natural cycles – Greg Huey (Georgia Tech.) 11:50 Introduction/Training to the World Café Process - Sandy Starkweather Lunch