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Satellite observations of air quality of megacities in China

Hao, Nan and Valks, Pieter and Smedt, I. De and Loyola, Diego and Van Roozendael, M. and Zhou, B. and Zimmer, Walter (2012) Satellite observations of air quality of megacities in China. EGU General Assembly 2012, Vienna.

Full text not available from this repository.

Abstract

In the last three decades, air pollution has become a major environmental issue in metropolitan areas of China as a consequence of fast industrialization and urbanization, and the rapid increase of the vehicle ownership. Now in China there are 3 megacities (Beijing, Shanghai and Guangzhou) in existence. A recent study of Asian megacities showed that they cover less than 2% of the land area, hold more than 30% of the population and produce about 10% of the anthropogenic gas and aerosol emissions. Therefore, it is important to qualify and understand current air pollution distribution and development in and around the megacities of China. Satellite observations provide unique insight into the regional air quality around megacities and air pollution transport from surrounding areas. In this work, we present an investigation of air quality over Beijing, Shanghai and Guangzhou combining satellite and ground-based measurements. Aerosol optical thickness (AOT), precursors of ozone (notably NO2 and CH2O), and SO2 are observed from space. The operational GOME-2 trace gases products developed at German Aerospace Center and MODIS AOT products will be used. Moreover, near surface concentrations of particular matter (PM), NO2 and SO2 in Beijing, Shanghai and Guangzhou are investigated. The effect of air pollution transport from neighboring areas to megacities will be researched using satellite measurements. Initial comparison between satellite and ground-based measurements of air pollutants in Beijing, Shanghai and Guangzhou will be shown. We will present the relationship between AOT and PM concentrations in megacities. The use of AOT, tropospheric NO2 and CH2O columns for air quality applications will also be shown.

Item URL in elib:https://elib.dlr.de/81050/
Document Type:Conference or Workshop Item (Speech)
Title:Satellite observations of air quality of megacities in China
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hao, NanDLR-IMFUNSPECIFIED
Valks, PieterDLR-IMFUNSPECIFIED
Smedt, I. DeBIRA-IASBUNSPECIFIED
Loyola, DiegoDLR-IMFUNSPECIFIED
Van Roozendael, M.BIRA-IASBUNSPECIFIED
Zhou, B.Fudan UniversityUNSPECIFIED
Zimmer, WalterDLR-IMFUNSPECIFIED
Date:2012
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:air quality, satellite, megacities, NO2, SO2, PM
Event Title:EGU General Assembly 2012
Event Location:Vienna
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Ozon-SAF (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Hao, Dr. Nan
Deposited On:04 Feb 2013 14:33
Last Modified:04 Feb 2013 14:33

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