Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5594
PIRA download icon_1.1View/Download Full Text
Title: Sources of tropospheric ozone along the Asian Pacific Rim : an analysis of ozonesonde observations  
Authors: Liu, HY
Jacob, DJ
Chan, LY
Oltmans, SJ
Bey, I
Yantosca, RM
Harris, JM
Duncan, BN
Martin, RV
Issue Date: Nov-2002
Source: Journal of geophysical research. Atmospheres, Nov. 2002, v. 107, no. D21, 4573, p. ACH 3-1 - ACH 3-19
Abstract: The sources contributing to tropospheric ozone over the Asian Pacific Rim in different seasons are quantified by analysis of Hong Kong and Japanese ozonesonde observations with a global three-dimensional (3-D) chemical transport model (GEOS-CHEM) driven by assimilated meteorological observations. Particular focus is placed on the extensive observations available from Hong Kong in 1996. In the middle-upper troposphere (MT-UT), maximum Asian pollution influence along the Pacific Rim occurs in summer, reflecting rapid convective transport of surface pollution. In the lower troposphere (LT) the season of maximum Asian pollution influence shifts to summer at midlatitudes from fall at low latitudes due to monsoonal influence. The UT ozone minimum and high variability observed over Hong Kong in winter reflects frequent tropical intrusions alternating with stratospheric intrusions. Asian biomass burning makes a major contribution to ozone at <32°N in spring. Maximum European pollution influence (<5 ppbv) occurs in spring in the LT. North American pollution influence exceeds European influence in the UT-MT, reflecting the uplift from convection and the warm conveyor belts over the eastern seaboard of North America. African outflow makes a major contribution to ozone in the low-latitude MT-UT over the Pacific Rim during November–April. Lightning influence over the Pacific Rim is minimum in summer due to westward UT transport at low latitudes associated with the Tibetan anticyclone. The Asian outflow flux of ozone to the Pacific is maximum in spring and fall and includes a major contribution from Asian anthropogenic sources year-round.
Keywords: Pollution transport
Seasonal variation
Case study
Publisher: Wiley-Blackwell
Journal: Journal of geophysical research. Atmospheres 
ISSN: 2169-897X
EISSN: 2169-8996
DOI: 10.1029/2001JD002005
Rights: Copyright 2002 by the American Geophysical Union
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Liu_Tropospheric_Ozone_Asian.pdf2.44 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

78
Last Week
0
Last month
Citations as of May 15, 2022

Downloads

125
Citations as of May 15, 2022

SCOPUSTM   
Citations

115
Last Week
0
Last month
0
Citations as of May 12, 2022

WEB OF SCIENCETM
Citations

110
Last Week
0
Last month
0
Citations as of May 19, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.