NASA - Earth Observations and Tools for Air Quality Applications

Posted on April 26th 2015
Share: aqicn.org/faq/2015-04-26/nasa-earth-observations-and-tools-for-air-quality-applications

We had the honor to be invited by Dr Pawan Gupta from the NASA Applied Remote Sensing Training (ARSET) team to give a presentation about our World Air Quality Index project at the Earth Observations and Tools for Air Quality Applications webminar

For those who could not attend the training and would like to get our presentation, you can download it from this link: waqi-arset-v1.2.pdf (the full webminar content is also available from the arset-aq website).


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During the webminar session, Dr Pawan Gupta presented, as an example from the earth-data tool, the Dust Storm which started on April 2015 2nd and moved from the Arabic Peninsula towards India in just few days. The animation below is showing this dust storm, based on the MODIS imagery.

Since the use Aerosol Optical Depth over arid/desertic areas is still an active area of research (due to surface reflectance issue, read more from this article or that article), it is unfortunately not possible to use the dust score overlay to highlight the dust zones over the arabic peninsula. So, intead, we are using a new processing concept to tempatively highlight the dust zone (highlighted in blue in the animation, and over the land only).


Click here to see all the FAQ entries
  • Nitrogen Dioxyde (NO2) in our atmosphere
  • Ozone AQI Scale update
  • Kriging Interpolation




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    À propos de la qualité et de la mesure de la pollution atmosphérique:

    A propos des niveaux de qualité de l'air

    IQANiveau de pollution de l'air Impact sur la santé
    0 - 50BonLa qualité de l'air est jugée satisfaisante, et la pollution de l'air pose peu ou pas de risque.
    51 -100ModéréAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
    101-150Mauvais pour les groupes sensiblesLa qualité de l'air est acceptable; Cependant, pour certains polluants, il peut y avoir un problème de santé modérée pour un très petit nombre de personnes qui sont particulièrement sensibles à la pollution de l'air.
    151-200MauvaisTout le monde peut commencer à ressentir des effets sur la santé; les membres des groupes sensibles peuvent ressentir des effets de santé plus graves.
    201-300Très mauvaisAvertissements de santé de conditions d'urgence. Toute la population est plus susceptible d'être affecté.
    300+DangereuxAlerte de santé: tout le monde peut ressentir des effets de santé plus graves.

    Pour en savoir plus sur la qualité de l'air, consultez le sujet Qualité de l'air sur wikipedia ou le guide AirNow de la qualité de l'air et de votre santé .

    Pour des conseils de santé très utiles de Docteur Richard Saint Cyr, consultez le blog myhealthbeijing.com.


    Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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