This training is in the past.

NO2 Air Pollution Monitoring with Sentinel-5p

Due to the precautions taken in order to mitigate the spread of the COVID-19 virus, the 5th Copernicus 'Eyes on Earth' Roadshow on 2-3 June, will be held fully online. 

This demo presented in the form of a webinar is open to all registered participants to the Copernicus 'Eyes on Earth' Roadshow. During this session you will be introduced to Sentinel-5p data, especially Level-2 NO2 Products. We will discuss the structure of the netCDF files in which the S-5p data is distributed and explore them using a well-known Python library (xarray). In addition, you will learn how to generate Level-3 products using HARP for a multi-temporal evaluation of NO2 over a study area. 

We will show you how to access the RUS Service and how to download, process, analyse and visualize the free data acquired by the Copernicus satellites. 


According to the World Health Organization, 3.7 million people around the world died in 2012 as a result of outdoor air pollution. Air pollution is a major environmental health problem that affects people in developed and developing countries alike. With millions of people dying prematurely every year as a direct result of poor air quality, it has never been more important to monitor the air we breathe.  

Pollutants enter the air from a range of sources, although they are mainly a result of motor vehicle and industrial combustion processes. Governments and decision-makers rely heavily on satellite data and computer models to show how pollution accumulates and how it is carried in the air so that they can develop appropriate mitigation strategies.  

As a side effect of the COVID-19 related restriction and lock-down, a significant decrease in air pollution could be observed in many areas of the world that routinely struggle with high emissions due to industrial activities and road traffic. We can use Sentinel-5p data to observe this decrease. 

Sentinel-5P provides timely data on a multitude of trace gases (CO, NO2, SO2, O3, aerosols…) with an unprecedented accuracy and spatial resolution. It also provides with measurement continuity with precedent and ongoing atmospheric spatial missions (OMI, IASI and SCHIAMACHY). 

Audience and selection

Attendance to the training session is free of charge. However, the application is open only to participants registered to the Copernicus 'Eyes on Earth' Roadshow.


This demo will be held fully online via GoToWebinar platform.

Training date

Wednesday 3rd of June 2020

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