[ESIP-all] [ESIP webinar invite] GRASP Earth Atmospheric sciences - session 2

[Eliot Llopis]

Dear reader,

Please find below the information for a webinar you may be interested in.

Regards,

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◆ *Date:*

European and US Timezones:
Tue 8th Oct 2024
4pm CET
Platform: Zoom

Asia and Middle East Timezones:
Wed 9th Oct 2024
10am CET
Platform: Zoom

◆ *Registration:*

https://forms.gle/LnD1QVrvYjB1ieGq5

◆* Session 2 - Modelling Street Level PM Dispersal using satellite data*

The use of satellite data for urban pollution monitoring has been studied
for over 25 years. The most serious limitations are the lack of spatially
high-resolution data and the inability to obtain vertical resolution to
understand exposure at ground level. A new generation of higher resolution
satellite data for air quality monitoring as well as several techniques for
improving ground level exposure estimates are under development. We are
applying a new approach which combines satellite data with Computational
Fluid Dynamics (CFD) modeling to retrieve road emissions and pollution
concentrations at a detailed 1-meter resolution. This method developed by
Dr Konstantin Kuznetsov simulates pollution dispersion in urban
environments, accounting for factors like buildings, roads, and vegetation.

◆ *[recording] Session 1 - **Determining PM2.5 Mass with Nephelometer
Optical Measurements*

Link:
https://drive.google.com/file/d/1gtKqoGqDx8N5aQqu01YCIrfchRB9rL2p/view?usp=drive_link

Typically nephelometers use optical measurements to provide information
about bulk particulate properties such as size and amount. AirPhoton
nephelometers offer features that allow us to use GRASP to pull out
additional information from the raw measurements such as size distribution
and particulate mass. The SPARTAN network deploys our nephelometers around
the globe alongside our filter based particle sampling stations. This
provides us a unique data set to compare real time optical measurements and
PM 2.5 retrievals with gravimetric based PM 2.5 measurements in a variety
of environments and conditions. In our first webinar Dr. Chong Li will
present the results of the work she has been doing with GRASP and machine
learning to obtain PM2.5 dry mass estimates from AirPhoton nephelometer
measurements deployed by the SPARTAN network.




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Eliot Llopis | Head of Communication

Phone: +33 766 451 204

E-Mail: eliot.llopis at grasp-earth.com <eliot.llopis at grasp-sas.com>

Skype: @EliotLlopis
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