Seasonal and spatial changes in trace gases over megacities from Aura TES observations: two case studies

Cady-Pereira, Karen E.; Payne, Vivienne H.; Neu, Jessica L.; Bowman, Kevin W.; Miyazaki, Kazuyuki; Marais, Eloise A.; Kulawik, Susan; Tzompa-Sosa, Zitely A.; Hegarty, Jennifer D.

doi:https://doi.org/10.5194/acp-17-9379-2017

Articles | Volume 17, issue 15

https://doi.org/10.5194/acp-17-9379-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-9379-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 15

Research article

|

07 Aug 2017

Research article |

| 07 Aug 2017

Seasonal and spatial changes in trace gases over megacities from Aura TES observations: two case studies

Karen E. Cady-Pereira, Vivienne H. Payne, Jessica L. Neu, Kevin W. Bowman, Kazuyuki Miyazaki, Eloise A. Marais, Susan Kulawik, Zitely A. Tzompa-Sosa, and Jennifer D. Hegarty

Data sets

DATA/AURA/TES V06/MEGACITY Goddard Space Flight Center https://avdc.gsfc.nasa.gov/index.php?site=635564035&id=10&go=list&path=/Megacity

Short summary

Air quality is a major issue for megacities. Our paper looks at satellite measurements over Mexico City and Lagos of several trace gases gases related to air quality to determine the temporal and spatial variability of these gases, and it relates this variability to local conditions, such as topography, winds and biomass burning events. We find that, while Mexico City is known for severe pollution events, the levels of of pollution in Lagos are much higher and more persistent.