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sa 2015 sa 2019

South America 2015-2019 vs 2020

Figure caption: The slider above shows satellite estimates of NO2 from Aura’s Ozone Monitoring Instrument (OMI) as an average of April 15 through May 31 over South America. The image on the left shows the mean of the 230-day period from 2015 through 2019, while the image on the right shows the mean of the 46-day period for 2020. The sliders below show the same information, but zoomed to show five major South American cities. The images are free and publicly-available and may be downloaded.

Buenos Aires slider

Lima slider

Rio de Janeiro & São Paulo slider

Santiago slider

santiago 2015 santiago 2020

Santiago 2015-2019 vs 2020

The slider above shows satellite estimates of NO2 from Aura’s Ozone Monitoring Instrument (OMI) as an average of April 15 through May 31. The image on the left shows the mean of the 230-day period from 2015 through 2019, while the image on the right shows the mean of the 46-day period for 2020.

rio 2015 rio 2020

Rio de Janeiro 2015-2019 vs 2020

The slider above shows satellite estimates of NO2 from Aura’s Ozone Monitoring Instrument (OMI) as an average of April 15 through May 31. The image on the left shows the mean of the 230-day period from 2015 through 2019, while the image on the right shows the mean of the 46-day period for 2020.

buenos aires 2015 buenos aires 2020

Buenos Aires 2015-2019 vs 2020

The slider above shows satellite estimates of NO2 from Aura’s Ozone Monitoring Instrument (OMI) as an average of April 15 through May 31. The image on the left shows the mean of the 230-day period from 2015 through 2019, while the image on the right shows the mean of the 46-day period for 2020.

lima 2015 lima 2020

Lima 2015 vs 2020

The slider above shows satellite estimates of NO2 from Aura’s Ozone Monitoring Instrument (OMI) as an average of April 15 through May 31. The image on the left shows the mean of the 230-day period from 2015 through 2019, while the image on the right shows the mean of the 46-day period for 2020.