Mon 06 May 2013: Model Overview | Working Groups | Aerosol Sources & Chemistry | Black Carbon
Tue 07 May 2013: Aerosol Effects on Climate & Air Quality | Mercury and POPs | Chemistry-Climate
Wed 08 May 2013: Sources & Sinks: Nitrogen | CO2 fluxes | Sources of Other Carbon Gases
Thu 09 May 2013: Tropospheric O3 and Photochemistry | Regional Air Quality
Monday 06 May 2013
Model Overview (Colette Heald, MIT, Chair)
- Welcome (Daniel Jacob, Harvard and Randall Martin, Dalhousie)
- GEOS-Chem model overview (Daniel Jacob, Harvard)
- GEOS-Chem Adjoint model overview (Daven Henze, U. Colorado-Boulder)
- GEOS Data Assimilation System (DAS) updates (Andrea Molod, NASA GSFC)
- GEOS-Chem model engineer's report (Bob Yantosca, Harvard)
- Grid-independent GEOS-Chem model (Michael Long, Harvard)
- GEOS-Chem benchmarking procedure (Melissa Payer, Harvard)
- New GEOS-Chem emissions module (Christoph Keller, Harvard)
- Advanced diagnostic tools for data assimilation with GEOS-Chem (Nicolas Bousserez, CU Boulder)
- A 'GCGrid' network for distribution of GEOS data (Jack Yatteau, Harvard)
GEOS-Chem Working Group Introductions (Jun Wang, U. Nebraska, Chair)
- Aerosols (Colette Heald, MIT and Jeff Pierce, Colorado State U.)
- Carbon Gases and Organics (Dylan Millet, U. Minnesota and Ray Nassar, Environment Canada)
- Chemistry-Climate (Hong Liao, Chinese Academy of Sciences and Loretta Mickley, Harvard)
- Mercury and Persistent Organic Pollutants (Lyatt Jaegle, U. Washington and Noelle Selin, MIT)
- Oxidants and Chemistry (Mathew Evans, U. York and Jingqiu Mao, NOAA GFDL)
- Nested Model (Jun Wang, U. Nebraska and Yuxuan Wang, Tsinghua U.)
- Sources and Sinks (Randall Martin, Dalhousie and Paul Palmer, U. Edinburgh)
Aerosol Sources and Chemistry (Nicholas Meskhidze, North Carolina State U., Chair)
Presentations
- Atmospheric input of soluble iron to the ocean: GEOS-Cl (Matthew Johnson, NASA Ames)
- Sulfate formation in the marine boundary layer (Becky Alexander, U. Washington)
- Effect of secondary organic aerosol amount and condensational behavior on global aerosol size distributions (Stephen D'Andrea, Dalhousie)
- From emission to deposition: understanding 30 years of African mineral dust aerosol with GEOS-Chem (David Ridley, MIT)
- Global OM/OC inferred from AMS measurements with GEOS-Chem and OMI nitrogen oxide concentrations (Sajeev Philip, Dalhousie)
- Simulation of the oxygen content of organic aerosol using GEOS-Chem (Qi Chen, MIT)
- New particle formation in GEOS-Chem-TOMAS: Evaluation, sensitivity, and particle number tagging (Dan Westervelt, Carnegie Mellon)
- Aerosol Loading in the Southeastern US (Bonne Ford, Colorado State U.)
- Adjoint inversion of aerosol emissions from satellite radiance observation with GEOS-Chem model (Richard Xu, U. Nebraska-Lincoln)
- GEOS-Chem evaluation of marine primary organic aerosol emission schemes (Brett Gantt, North Carolina State U.)
Posters
- A parameterization of sub-grid particle formation in sulphur-rich plumes for global and regional scale models (Robin Stevens, Dalhousie)
- Composition and spatial and temporal patterns of measured PM2.5 in the United States: Important constraints on global model simulations (Bret Schichtel, National Park Service)
- Updated dust-iron dissolution mechanism in GEOS-Chem (Nicholas Meskhidze, North Carolina State U.)
- Particle formation and growth in urban and rural environment over Europe: nested GEOS-Chem/APM simulations and comparisons with observations (Gan Luo, SUNY-Albany)
Black Carbon and Related Processes (Fangqun Yu, SUNY-Albany, Chair)
Presentations
- Assessment of the sources and distribution black carbon aerosol over Asia using the adjoint of GEOS-Chem (Li Zhang, U. Colorado-Boulder)
- Global budget of black carbon: constraints from HIPPO (Qiaoqiao Wang, Harvard)
- Spatial and temporal distribution Arctic aerosols: comparison between remote sensing, in situ, and GEOS-Chem (Maurizio di Pierro, U. Washington)
- Sensitivity tests with GEOS-Chem aerosol optical properties in comparison with satellite and sunphotometer (Gabriele Curci, U. L'Aquila)
- Validation of GEOS-Chem-APM simulated aerosol optical properties using A-Train satellite observations (Xiaoyan Ma, SUNY-Albany)
- Top-down estimates of biomass burning emissions of black carbon in the western United States (Yuhao Mao, UCLA)
- Assessment of black carbon in Russia using GEOS-Chem (Joshua Fu, U.Tennessee)
Posters
- Influence of aging and mixing state to black carbon radiative forcing (Xuan Wang, MIT)
- Global simulation of brown carbon and its direct radiative forcing (Duseong Jo, Seoul National U.)
- Missing black carbon emissions in Russia - new BC emissions for GEOS-Chem (Kan Huang, U. Tennessee)
- Improving Aerosol Scavenging in GEOS-Chem (Jessica Kunke, Harvard)
- Contribution of agricultural burning to Arctic BC aerosols (Ling Qi, UCLA)
- Simulating the emission and transport of smoke related species in Southeast Asia using the GEOS-Chem nested grid model (Shannon Koplitz, Harvard)
Model Clinics
- GEOS-Chem model clinic (Melissa Payer, Sajeev Philip)
- Adjoint GEOS-Chem model clinic (Daven Henze, Yanko Davila)
- Q&A for the GEOS DAS and the Grid-Independent GEOS-Chem (Steven Pawson, Andrea Molod, Bob Yantosca, Mike Long)
Tuesday 07 May 2013
Aerosol Effects on Climate and Air Quality (May Fu, Peking U., Chair)
Presentations
- Radiative impact of decadal trends in near-term climate forcers over the Arctic troposphere: A significant role for non-BC species (Tom Breider, Harvard)
- Study of aerosol first indirect radiative forcing with GEOS-Chem (Fangqun Yu, SUNY-Albany)
- Optimal estimation of high resolution global PM2.5 concentrations using GEOS-Chem and MODIS (Aaron van Donkelaar, Dalhousie)
- Time series analysis of satellite derived PM2.5 (Brian Boys, Dalhousie)
- Aerosol simulation over China (Yuxuan Wang, Tsinghua U.)
- Effects of the meteorological variability on aerosol trends in East Asia (Rokjin Park, Seoul National U.)
- Sensitivity of global mortality to PM2.5 precursor emissions using the GEOS-Chem adjoint (Colin Lee, Dalhousie)
- Modeling of volcanic sulfate direct radiative forcing with Geos-Chem (Cui Ge, U.Nebraska Lincoln)
Posters
- The perfect dust storm over South West Asia June 2008: causes determined from surface and satellite observations compared with high resolution DEAD emissions and GEOS-Chem output (Kevin Bartlett, Air Force Institute of Technology)
- Insights on aerosol lifetimes and wet scavenging following the Fukushima nuclear accident (Betty Croft, Dalhousie)
- Investigation into future radiative forcing sensitivities using GEOS-Chem and its adjoint based on RCPs (Forrest Lacey, U. Colorado-Boulder)
- A decade of global PM2.5 estimates (David Lary, U.Texas-Dallas)
- GEOS-Chem satellite simulator (Jun Wang, U. Nebraska-Lincoln)
Mercury and Persistent Organic Pollutants (Chris Holmes, UC Irvine, Chair)
Presentations
- Influence of future emissions and climate on atmospheric PAH transport (Carey Friedman, MIT)
- Impacts of recent changes in climate and emissions on mercury variability in the Arctic (Jenny Fisher, U. Wollongong)
- Historical releases of mercury from wastewater: global importance and influence on atmospheric trends (Helen Amos, Harvard)
- Terrestrial Mercury Dynamics (Bess Sturges Corbitt, Harvard)
- Methylmercury in the Arctic Surface Ocean (Anne Laerke Soerensen, Harvard)
- Quantifying uncertainties of the global mercury cycle using the GEOS-Chem model and observations (Shaojije Song, MIT)
Posters
- Modeling the fate of mercury in products (Hannah Horowitz, Harvard)
- Polynomial Chaos Expansion for chemical parameter uncertainty quantification in PAH simulations (Colin Pike-Thackray, MIT)
- Integrated assessment of the health impacts of the Mercury and Air Toxics Standards (Amanda Giang, MIT)
Chemistry-Climate (Lin Zhang, Peking U., Chair)
Presentations
- Factors controlling variability in the oxidative capacity of the troposphere since the Last Glacial Maximum (Lee Murray, Harvard)
- Implications of climate change for intercontinental transport in the past decade (Shiliang Wu, Michigan Tech)
- Impact of 2000-2050 climate and vegetation changes on air quality: including CO inhibition of isoprene emissions in GEOS-Chem (Amos Tai, MIT)
- Australasian total column CO and HCHO, investigated with GEOS-Chem, FTIR measurements and the Earth System Model ACCESS (Rebecca Buchholz, U. Wollongong)
Posters
- On-line simulation of tropospheric ozone with the climate-chemistry model BCC-AGCM- CHEM1.0 (Tongwen Wu, Beijing Climate Center)
- Preparation for the SEAC4RS aircraft campaign (Karen Yu, Harvard)
- Calculating stratospheric chemistry and aerosols with GMI (Debra Weisenstein, Harvard)
- A statistical approach for downscaling GISS/GEOS-CHEM (Konstantinos Varotsos, National and Kapodistrian U. of Athens / National Observatory of Athens)
- NOAA's Atmospheric Chemistry, Carbon Cycle, and Climate (AC4) competitive research program (Monika Kopacz, NOAA Climate Program Office)
- Evaluation of tropospheric composition in Yale-E2 (Hongyan Dang, Yale U.)
- Development of GEOS-Chem driven by CESM meteorological data: effects of future climate change on air quality (Minjoong Kim, Seoul National U.)
- Assessment of the sensitivity of sulfate isotopes to climate and chemistry on the glacial- interglacial timescale using GEOS-Chem (Eric Sofen, U. Washington)
- Increasing the Efficiency of GEOS-Chem adjoint simulations using a Python Ensemble Manager (Andre Perkins, U. Wisconsin-Madison)
- Novel methods of understanding our atmosphere (Dene Bowdalo, U. York)
- Attribution of direct ozone radiative forcing to spatially resolved emissions (Kevin Bowman, JPL)
- Radiative forcing of early 20th-century US aerosols (Eric Leibensperger, SUNY-Plattsburgh)
Wednesday 08 May 2013
Sources and Sinks: Nitrogen (Folkert Boersma, KNMI, Chair)
Presentations
- Top-down constraints on ship NOx emissions in European waters from OMI (Geert Vinken, Eindhoven U. of Technology)
- Top-down and bottom-up constraints on NH3 emissions (Fabien Paulot, Harvard)
- Present and future nitrogen deposition to US National Parks: Critical load exceedances (Raluca Ellis, Harvard)
- Implementation of a plume-in-grid model into GEOS-Chem to improve sub-grid processes related to lightning NOx emissions (Alicia Gressent, U. de Toulouse)
- Evaluation of ammonia bi-directional exchange with GEOS-Chem (Juliet (Liye) Zhu, U. Colorado-Boulder)
- Investigating the sources of nitrate in Antarctica using GEOS-Chem and its adjoint (Hyung-Min Lee, U.Colorado-Boulder)
- Refining nested GEOS-Chem emissions during the CalNex campaign by assimilation of TES ammonia observations (Shannon Capps, US EPA AMAD)
Posters
- Investigating the impact of snowpack photodenitrification on polar atmospheric chemistry utilizing results from a snowpack radiative transfer model in GEOS-Chem (Maria Zatko, U. Washington)
- Analysis of NOx Emission Trend over East Asia - GEOS-Chem, Satellite and REAS emission (Itsushi Uno, Kyushu U.)
- How to quantify and avoid errors in evaluating CTMs with UV/Vis satellite retrievals (Folkert Boersma, KNMI / Eindhoven U. of Technology)
- Lightning NOx Statistics Derived by NASA Lightning Nitrogen Oxides Model (LNOM) Data Analyses (William Koshak, NASA MSFC)
- An investigation of ammonia and inorganic particulate matter in California during the CalNex campaign (Luke Schiferl, MIT)
- Daily ammonia maps from AIRS and comparison with GEOS-Chem (Juying Warner, AOSC/UMCP)
- Fire emissions associated with future land use change in Indonesia (Miriam Marlier, Columbia)
- NO2 and SO2 dry deposition inferred from satellite measurements (Caroline Nowlan, Dalhousie)
- Retrieving NOx from space: errors in satellite NO2 products and CTM simulations (Jintai Lin, Peking U.)
Carbon Dioxide Fluxes (Monika Kopacz, NOAA, Chair)
Presentations
- Using GEOS-Chem within a grid-based EnKF system to estimate carbon fluxes from NOAA surface data and GOSAT data (Andrew Schuh, Colorado State U.)
- Attribution of atmospheric CO2 to surface fluxes with the Carbon Monitoring System Flux Pilot project (Kevin Bowman, JPL)
- Quantifying the impact of model errors on top-down CO flux estimates (Dylan Jones, U. Toronto)
- Temporal and spatial scale factors for fossil fuel CO2 (Ray Nassar, Environment Canada)
- Estimates of CO2 surface fluxes using an atmospheric inversion method (Chen Zhaohui, Chinese Academy of Sciences)
- Continental sources/sinks manifest the seasonal and latitudinal gradient of atmospheric CO over East Asia (Changsub Shim, Korea Environment Institute)
- GEOS-Chem simulations of global CO2 concentrations at horizontal resolution of 0.5x0.666 degrees (Liang Feng, U. Edinburgh)
- Interannual variability in atmospheric CO2 from generalized surface fluxes (Gretchen Keppel-Aleks, UC Irvine)
- Quantifying terrestrial carbon fluxes using surface and satellite observations (Feng Deng, U. Toronto)
Posters
- Estimating surface CO2 flux with simulated ACOS-GOSAT observations (Junjie Liu, JPL)
- Understanding model errors of GEOS-Chem CO2 and CO simulations (Helen Wang, Harvard-Smithsonian)
- Constrain terrestrial surface CO2 fluxes by combing both atmospheric transport model and process-based terrestrial model (Qing Zhu, Purdue)
- Inverse modeling of terrestrial ecosystem carbon sinks and sources over China (Hengmao Wang, Nanjing U.)
Sources of other Carbon Gases (Ray Nassar, Environment Canada, Chair)
Presentations
- A uniform emissions pre-processor for GEOS-Chem (Qiang Zhang, Tsinghua U.)
- Nested Adjoint Inversion of Methane Sources in North America (Kevin Wecht, Harvard)
- Top-down constraints on sources and impacts of atmospheric organic acids (Dylan Millet, U. Minnesota)
- Quantifying surface emissions of methanol using observations from the Tropospheric Emission Spectrometer (Kelley Wells, U. Minnesota)
- Methane in the 21st century: Projections for RCP scenarios in GEOS-Chem (Chris Holmes, UC Irvine)
- Estimate of tropical fire emissions from the 2006 Indonesian Peat fires using Aura TES CH4 and CO data and the GEOS-Chem model (John Worden, JPL/Caltech)
- The methane emissions from Pan-Arctic lakes estimated using the adjoint of GEOS-Chem (Zeli Tan, Purdue)
- Inverse estimate of long-term CO emission in China between 2005–2010 with Green's Function Method (Keiya Yumimoto, Japan Meteorological Agency)
- Top-down isoprene emission estimates over the US Midwest using tall tower measurements and GEOS-Chem nested grid simulations (Lu Hu, U. Minnesota)
Posters
- The potential of glyoxal as a second top-down constraint on NMVOC emissions (Chris Miller, Harvard)
- Methane emissions from fracking (Brian Nathan, U. Texas-Dallas)
- Variability of formaldehyde over the Southeastern United States from space: Implications for isoprene emissions (Lei Zhu, Harvard)
- Regional data assimilation of multispectral MOPITT observations of CO over North America (Zhe Jiang, U. Toronto)
- Using GEOS-Chem to better understand isoprene nighttime chemistry (Rebecca Schwantes, Caltech)
- Source attribution of observed CO variability during BORTAS-B using GEOS-Chem (Douglas Finch, U. Edinburgh)
- Characterization of information content and errors in inverse models of methane (Alex Turner, Harvard)
- Global distribution of formic acid from TES: Retrieval evaluation and implications for sources (Sreelekha Chaliyakunnel, U. Minnesota)
- Vegetation change and biogenic trace gas emissions: potentials for modifying source terms for GEOS-Chem (Manuel Lerdau, U. Virginia)
Thursday 09 May 2013
Tropospheric Ozone and Photochemistry (Rokjin Park, Seoul National U., Chair)
Presentations
- Global ozone-CO correlations from OMI and AIRS as constraints on ozone sources and transport (Patrick Kim, Harvard)
- The GEOS-Chem PAN simulation (Emily Fischer, Harvard)
- Ozone and organic nitrates over the eastern United States: sensitivity to isoprene chemistry (Jingqiu Mao, NOAA GFDL)
- Assessing the atmospheric impacts of aviation with GEOS-Chem (Steven Barrett, MIT)
- Observing North American background ozone from geostationary orbit (Peter Zoogman, Harvard)
- Source attribution of North American background ozone concentrations in the Intermountain West (Lin Zhang, Peking U.)
- Integrating in situ and satellite observations with GEOS-Chem to constrain the influence of boreal biomass burning emissions on tropospheric oxidant chemistry (Mark Parrington, U. Edinburgh)
- Understanding the interannual variations of tropospheric O3 and aerosols using the GEOS-Chem model (Hong Liao, Chinese Academy of Sciences)
- Impacts of aerosols on concentrations of tropospheric ozone in China through heterogeneous reactions and changes in photolysis rates (Sijia Lou, Chinese Academy of Sciences)
Posters
- Characterizing the variability of STE in the UTLS (Dave MacKenzie, U. Toronto)
- Dynamic effects of upper tropospheric ozone (Matthew Cooper, Dalhousie)
- Impact of meteorology and emissions on the interannual variation of tropospheric ozone over the South America and surrounding oceans (Junhua Liu, Harvard)
- Improved background ozone modeling with Geos-Chem (Katherine Travis, Harvard)
- Meteorological modes driving surface O3 variability over the United States (Lulu Shen, Harvard)
- Iodine in the troposphere (Tomás Sherwen, U. York)
- O-17 excess of nitrate and sulfate from last glacial period to preindustrial Holocene: implications for glacial-interglacial atmospheric oxidant change (Lei Geng, U. Washington)
- Tropospheric O3 intraseasonal variability over South Asia: IASI observations and GEOS-Chem simulations (Bastien Sauvage, U. Toulouse)
- Overview of the geophysical data derived from long-term FTIR monitoring at the Jungfraujoch NDACC site (46.5ºN) (Emmanuel Mahieu, U. Liège -Belgium)
- Radical loss in the atmosphere from Cu-Fe redox coupling in aerosols (Jingqiu Mao, NOAA GFDL)
- Using the GEOS-Chem adjoint to determine source contributions to ozone exposure metric in the US (Kateryna Lapina, U. Colorado-Boulder)
- An approach to select optimal GEOS-Chem timesteps (Sajeev Philip, Dalhousie)
Regional Air Quality (Hiroshi Tanimoto, National Institute for Environmental Studies, Japan, Chair)
Presentations
- Two-way coupling of GEOS-Chem and its multiple nested models: impacts on regional and global atmospheric environment (Jintai Lin, Peking U.)
- Health Effects of fires in SouthEast Asia estimated using nested-grid GEOS-Chem simulations (Prasad Kasibhatla, Duke)
- Sensitivity of summertime surface ozone to surface temperature over Southeastern U.S.: interannual variability during 1987-2010 as a diagnostic for model chemical mechanism (Tzung-May Fu, Peking U.)
- Improving GEOS-Chem to better match satellite and aircraft observations in Nigeria (Eloise Marais, Harvard)
- Model intercomparison: GEOS-Chem and hemispheric CMAQ (Xinyi Dong, U.Tennessee)
- Analysis of Toronto pollution using GEOS-Chem and ground-based FTIR observations (Cynthia Whaley, U. Toronto)
- Quantifying the contributions of wildfires to surface ozone in the western U.S. and its regional air quality impact (Mei Gao, UCLA)
Posters
- Sources and transport pathways of pollution in Australasia (Jenny Fisher, U. Wollongong)
- Scaling relationship for NO2 pollution and population: A satellite perspective (Lok Lamsal, NASA GSFC)
- Impact of southern California anthropogenic emissions on air quality in the Western US (Min Huang, CalTech/JPL)
- Simulation of the interannual variations of PM2.5 in China: Role of meteorology (Qing Mu, Chinese Academy of Sciences)
- Recent regional variability of tropospheric composition in boundary layer and free troposphere over East Asia (Ka-Ming Wai, Michigan Tech)
- Nested GEOS-Chem adjoint (Irene Dedoussi, MIT)
- Cargo ship monitoring of trace gases in Southeast Asia and comparison to GEOS-Chem model (Hiroshi Tanimoto, National Institute for Environmental Studies, Japan)
- OMI data for NOx, O3, and HCHO over the Amazon (Mike Kendall, U. Leicester)
- Extreme weather events and air quality by CESM and WRF/CMAQ (Yang Gao, U.Tennessee)
- Variability of aerosol optical depths over North China during haze and non-haze events based on satellite retrieval and the GEOS-Chem model (Libao Chai, Tsinghua U.)
Last updated 14 May 2013 - GEOS-Chem Support Team