Presentations

ORAL 

  • Qu, Z. et al., Attribution of the surge of global methane in 2020 using inverse analysis of GOSAT observations, AGU Fall Meeting, New Orleans, LA, Dec 17, 2021. [pdf] 

  • Qu, Z. et al., Sector-based top-down estimates of NOx, SO2, and CO emissions in East Asia, 16th Atmospheric Chemistry Colloquium for Emerging Senior Scientists (ACCESS XVI), (remote), Dec 9, 2021.

  • Qu, Z. et al., Global methane inversions using TROPOMI and GOSAT, CEOS Atmospheric Composition Virtual Constellation AC-VC-17, (remote), Jun 7, 2021. [pdf] 

  • Qu, Z. et al., Different response of satellite (OMI, TROPOMI) and surface NO2 observations to US NOx emission reductions during the COVID-19 shutdown: importance of the NO2 background in the interpretation of satellite observations, 101st AMS Annual Meeting, (remote), Jan 11, 2021. [pdf]

  • Qu, Z. et al., Global distribution of methane emissions: an inverse analysis of 2019 observations from TROPOMI and GOSAT, AGU Fall Meeting, (remote), Dec 16, 2020.

  • Qu, Z. et al., 4D-Var and hybrid inversion of NOx emissions and the impact of satellite retrievals on emission estimates, US EPA workshop on moving from research to regular utilization of satellite data, (remote), Nov 19, 2020. [pdf]

  • Qu, Z. et al., Responses of NO2 in the US to shutdown during COVID19: the importance of background NO2, TROPOMI-OMI Workshop, (remote), Oct 29, 2020.

  • Qu, Z. et al., Qu, Z. et al., Global distribution of methane emissions: an inverse analysis of 2019 observations from TROPOMI, 1st GEOS-Chem Europe meeting (GCE1), (remote), Sep 1, 2020. [pdf] [video]

  • Qu, Z. et al., A sector-based inversion to update emissions and Improving O3 simulations through NOx inversions, American Meteorological Society’s 100th Annual Meeting, Boston, MA, Jan 15, 2020.

  • Qu, Z. et al., Impact from international and interstate transport on O3 exceedances in Yuma, Arizona, American Meteorological Society’s 100th Annual Meeting, Boston, MA, Jan 13, 2020.

  • Qu, Z. et al., A novel sector-based inversion to update NOx, SO2 and CO emissions at the process level using satellite observations, AGU Fall Meeting, San Francisco, CA, Dec 12, 2019.

  • Qu, Z. et al., Challenges of applying large dimensions of satellite data for air quality studies, Frontiers of Atmospheric Science and Chemistry, National Center for Atmospheric Research, Boulder, CO, Sep 11, 2019.

  • Qu, Z. et al., SO2 emission estimates using OMI SO2 and NO2 retrievals for 2005 - 2017, Aura Science Team Meeting, Pasadena, CA, Aug 27, 2019.

  • Qu, Z. et al., Magnitude and trend of NOx and SO2 emissions constrained by OMI observations, EPA 2019 International Emission Inventory Conference, Dallas, TX, Aug 2, 2019.

  • Qu, Z. et al., 4D-Var NOx emission constraints and the potential of future high-resolution geo-stationary observations, TEMPO Science Team Meeting, University of Wisconsin-Madison, WI, Jun 7, 2019.

  • Qu, Z. et al., Incorporating chemical interactions and co-emissions in top-down constraints on sources of NOx, SO2 and CO, 9th International GEOS-Chem Meeting, Harvard University, Cambridge, MA, May 7, 2019.

  • Qu, Z. et al., Long-term (2005-2017) global SO2 emissions derived from two OMI SO2 emissions retrievals: discrepancy analysis and validations, American Meteorological Society’s 99th Annual Meeting, Phoenix, AZ, Jan 10, 2019.

  • Qu, Z. et al., International and interstate transport of O3 in Yuma and impact from NOx emissions, NASA HAQAST5 meeting, Phoenix, AZ, Jan 3, 2019.

  • Qu, Z., Deriving top-down NOx and SO2 emissions simultaneously using OMI observations and GEOS-Chem adjoint, Regional GEOS-Chem Asia Meeting, Nanjing University of Information Science and Technology, China, May 22, 2018.

  • Qu, Z. et al., Top-down NOx and SO2 emissions simultaneously estimated from different OMI retrievals and inversion frameworks, AGU Fall Meeting, New Orleans, LA, Dec 14, 2017.

  • Qu, Z., Regional and global long-term emissions constrained by NO2 and SO2 satellite observations, 7th Annual Young Scientist Symposium on Atmospheric Research, Fort Collins, CO, Oct 27, 2017.

  • Qu, Z. et al., Regional and global long term emissions constrained by NO2 and SO2 satellite observations, EPA 2017 International Emission Inventory Conference, Baltimore, MD, Aug 16, 2017.

  • Qu, Z. et al., Decadal-scale top-down NOx and SO2 emissions from a hybrid 4D-Var / mass balance joint inversion, 8th International GEOS-Chem Meeting, Harvard University, Cambridge, MA, May 2, 2017.

 

POSTER 

  • Qu, Z. et al., US COVID-19 shutdown demonstrates importance of background NO2 in inferring NOx emissions from satellite NO2 observations, 16th International Global Atmospheric Chemistry Science Conference, (remote), Sep 13, 2021.

  • Qu, Z. et al., Global distribution of methane emissions: a comparative inverse analysis of 2019 observations from TROPOMI and GOSAT, 17th International Workshop on Greenhouse Gas Measurements from Space, (remote), Jun 16, 2021.

  • Qu, Z. et al., Responses of NO2 in the US to shutdown during COVID19, TEMPO Science Team Meeting, (remote), Aug 14, 2020.

  • Qu, Z. et al., Joint inversion of NOx and SO2 emissions using OMI observations in China, AGU Fall Meeting, Washington, D.C., Dec 12, 2018.

  • Qu, Z. et al., Incorporating chemical interactions and co-emissions in top-down constraints on sources of NOx, SO2 and CO, Joint 14th iCACGP Quadrennial Symposium / 15th IGAC Science Conference, Takamatsu, Japan, Sep 28, 2018.

  • Qu, Z. et al., Decadal-scale joint inversion of NOx and SO2 using a hybrid 4D-Var / mass balance approach, AGU Fall Meeting, San Francisco, CA, Dec 14, 2016.

  • Qu, Z. et al., Top-down NOx emissions for China (2005-2012): a hybrid inversion method and trend analysis, IGAC 2016 Science Conference, Breckenridge, CO, Sep 29th, 2016.

  • Qu, Z. et al., Inversion of NOx emissions over China with a combination of mass balance and 4D-Var approaches, 7th International GEOS-Chem Meeting, Harvard University, Cambridge, MA, May 5th, 2015.