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Satellite observations of changes in air quality at mega-events in China

Hao, Nan and Valks, Pieter and Smedt, I. De. and Rix, Meike and Loyola, Diego and Roozendael, M. Van and Zhou, B. and Zimmer, Walter (2011) Satellite observations of changes in air quality at mega-events in China. EGU General Assembly 2011, 03-08, April, 2011, Vienna, Austria.

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Abstract

In the last three decades, China’s rapid economic growth has resulted in an increase in energy consumption, air pollution and associated health effects. From 2007, the 2008 Olympic Games, the Expo 2010 and the 2010 Asian Games have been held in Beijing, Shanghai and Guangzhou which are important megacities in China respectively. These mega-events which draw millions of local and international visitors to the host cities give these cities a chance to highlight air quality improvements in the long- and short- term. To improve the air quality during these mega-events, many emission control measures (ECMs) focusing on energy, industry, transport and construction were implemented by host cities before and during the mega-events. Satellite observations will provide unique insight into the regional air quality around host cities and air pollution transport from surrounding provinces. In this work, we present an investigation of air quality over Beijing, Shanghai and Guangzhou before, during and after the Olympic Games, the Expo 2010 and the 2010 Asian Games using satellite measurements. The Global Ozone Monitoring Experiment-2 (GOME-2) is one of the new-generation European instruments carried on the MetOp satellite, which will continue the long-term atmospheric composition measurements started by GOME on ERS-2 and SCIAMACHY on Envisat. The GOME-2 ozone and minor trace gases products such as NO2, SO2 and formaldehyde (CH2O) developed at German Aerospace Center have already reached operational status, in the framework of the EUMETSAT’s Satellite Application Facility on Ozone and Atmospheric Chemistry Monitoring (O3M-SAF). GOME-2 tropospheric NO2, CH2O and SO2 products are used to study air quality of the host cities before, during, and after their respective mega-events. The effect of air pollution transport from neighboring provinces to mega-events host cities will be researched. Initial comparison with ground based measurements (in-situ) in Beijing, Shanghai and Guangzhou will be shown. Long-term NO2, SO2 and CH2O data recorded from GOME, SCIAMACHY and GOME-2 are analyzed to investigate possible trends in air pollutants and to assess the effectiveness of the controls applied by host cities in the last ten years.

Document Type:Conference or Workshop Item (Poster)
Title:Satellite observations of changes in air quality at mega-events in China
Authors:
AuthorsInstitution or Email of Authors
Hao, Nannan.hao@dlr.de
Valks, PieterUNSPECIFIED
Smedt, I. De.UNSPECIFIED
Rix, MeikeUNSPECIFIED
Loyola, DiegoUNSPECIFIED
Roozendael, M. VanUNSPECIFIED
Zhou, B.UNSPECIFIED
Zimmer, WalterUNSPECIFIED
Date:2011
Status:Published
Keywords:air quality, satellite, mega-events, China, megacity
Event Title:EGU General Assembly 2011
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:03-08, April, 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Ozon-SAF
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Dr. Nan Hao
Deposited On:19 Jan 2012 11:04
Last Modified:14 Jun 2013 08:42

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