Mapping pollution during the COVID-19 epidemic

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Cristina Vrînceanu

Earth Engine Meetups

06.05.2020

The one with the idea

Luca Battistella (Facebook)

Alistair Maclean (LinkedIn)

ESA (video)

• Similar exercise related to China
• Some mapping related to the North of Italy
• Been previously involved in an Air Quality project for LPS19
• Sentinel-5P data has been added to GEE

The one with the execution

• Sentinel-5P data included in GEE

(NRT & DT) – for this application NRT is used;

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• Cloud filtering for eliminating cloud flags on pixels (not yet, but will look into it)

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• Application is quite basic in functionality, but I’ve included a quick “fly to location”

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• Comparison between previous year (2019) and this year (2020) better for accurate picture

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• Can constitute a basis for more elaborate projects.

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https://medium.com/@cristinavrinceanu/monitoring-emissions-during-an-epidemics-lock-down-b8c4874067ee

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https://christinnea.users.earthengine.app/view/itemissionscovid19

The one with the great apps – Part I

Simon Gascoin

https://labo.obs-mip.fr/multitemp/global-no2-monitor/

Gennadii Donchyts

https://twitter.com/gena_d/status/1246107298147287041

Justin Braaten

https://medium.com/google-earth/monitoring-air-quality-with-s5p-tropomi-data-4f6b0aebe1c0

https://showcase.earthengine.app/view/tropomi-explorer#dataset=Nitrogen%20dioxide;datatype=Near-real-time;center=%7B%22type%22%3A%22Point%22%2C%22coordinates%22%3A%5B-95.2%2C34.8%5D%7D;aoi=%7B%22type%22%3A%22Point%22%2C%22coordinates%22%3A%5B9.502%2C45.566%5D%7D;cloud=10;leftdate=2020-01-01;rightdate=2020-02-01;min=20;max=400;swipe=false;chart=cont;zoom=4;

The one with the great apps – Part II

Luca Batistella

https://lucabattistellageo.users.earthengine.app/view/no2itaviz?fbclid=IwAR11_PU_VP4HHy5d2PMsVchqZeFCNs5bE4_bmPapIhVHH1s4KoZ07bciW84

Dhruv Mehrotra

https://dhruvmehrotra3.users.earthengine.app/view/earther-time-series

Jyoti Dhwanikar

https://twitter.com/musical_jyoti/status/1254733797993693185

And many more…

Simon Andersson

https://sandersson0013.users.earthengine.app/view/air-pollution-app

The one with the mentions

The one with the conclusions

https://atmosphere.copernicus.eu/flawed-estimates-effects-lockdown-measures-air-quality-derived-satellite-observations?q=flawed-estimates-effects-lockdown-measures-air-quality-satellite-observations

BE CAREFUL and CARE FOR ETHICS!

PLAY AND LEARN A LOT!

https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-5P/Coronavirus_lockdown_leading_to_drop_in_pollution_across_Europe

The one where I say thank you!

CRISTINA ANDRA VRÎNCEANU

PhD Student

Nottingham Geospatial Institute

Cristina.vrinceanu@nottinghama.ac.uk

@cavrinceanu

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