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Space-based measurements of air quality during the World Expo 2010 in Shanghai

Hao, Nan and Valks, Pieter and Loyola, Diego and Cheng, Yafang and Zimmer, Walter (2011) Space-based measurements of air quality during the World Expo 2010 in Shanghai. Environmental Research Letters, pp. 1-9. DOI: 10.1088/1748-9326/6/4/044004.

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Official URL: http://iopscience.iop.org/1748-9326/6/4/044004

Abstract

During the World Exposition 2010 (Expo, from May to October), emission control measures were implemented in Shanghai and surrounding areas to improve the air quality. To evaluate the effect of these measures, we use the tropospheric NO2 column, aerosol optical thickness (AOT) and CO concentration observations from the satellite instruments GOME-2, MODIS and MOPITT, respectively. The analysis shows about 8% and 14% reductions of tropospheric NO2 columns and AOT respectively over Shanghai during the Expo period, compared to the past three years. A 12% reduction of CO concentration at 700 hPa over Shanghai and surrounding areas is found during the Expo period. On the other hand, the satellite measurements show increases of NO2 by 20% and AOT by 23% over Shanghai urban areas after the Expo (November 2010–April 2011), when the short-term emission control measures were lifted. Our study indicates that the air quality measures were effective in Shanghai and surrounding provinces during the Expo period.

Document Type:Article
Title:Space-based measurements of air quality during the World Expo 2010 in Shanghai
Authors:
AuthorsInstitution or Email of Authors
Hao, NanInstitut für Methodik der Fernerkundung, Deutschen Zentrums für Luft- und Raumfahrt e.V.(DLR)
Valks, PieterInstitut für Methodik der Fernerkundung, Deutschen Zentrums für Luft- und Raumfahrt e.V.(DLR)
Loyola, DiegoInstitut für Methodik der Fernerkundung, Deutschen Zentrums für Luft- und Raumfahrt e.V.(DLR)
Cheng, YafangPeking University
Zimmer, WalterInstitut für Methodik der Fernerkundung, Deutschen Zentrums für Luft- und Raumfahrt e.V.(DLR)
Date:October 2011
Journal or Publication Title:Environmental Research Letters
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:No
In ISI Web of Science:Yes
DOI:10.1088/1748-9326/6/4/044004
Page Range:pp. 1-9
Status:Published
Keywords:satellite, NO2, aerosol, CO, world exposition, Shanghai
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:09 Jan 2012 07:02
Last Modified:12 Dec 2013 21:32

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