IASI CO observation
Move the slider left to right to see the impact of covid-19 in China: compare 2020 with the average of the 2 previous years before, during and after the lockdown.
before (2018-2019 vs 2020)
during (2018-2019 vs 2020)
after (2018-2019 vs 2020)
Move the slider left to right to see the percentage difference, calculated as follows: 100 x [2020 – mean(2018-2019)] / mean(2018-2019).
- before lockdown: the period 01/01 – 22/01 is considered
- during lockdown: the period 11/02 – 20/03 is considered
- after lockdown: the period 21/03 -19/04 is considered
before vs during lockdown
during vs after lockdown
TROPOMI NO2 observation
Move the slider left to right to see the impact of covid-19 in China: compare 2020 with 2019 before, during and after the lockdown
before (2019 vs 2020)
during (2019 vs 2020)
after (2019 vs 2020)
IASI NH3 observation
Move the slider left to right to see the impact of covid-19 in China: compare 2020 with the average of the 3 previous years during and after the lockdown
during (2017-2018-2019 vs 2020)
after (2017-2018-2019 vs 2020)