The relationship between lower-stratospheric ozone at southern high latitudes and sea surface temperature in the East Asian marginal seas in austral spring

Using satellite observations, reanalysis data, and model simulations, this study investigates the effect of sea surface temperature (SST) on interannual variations of lower-stratospheric ozone at southern high latitudes in austral spring. It is found that the SST variations across the East Asian mar...

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Bibliographic Details
Published in:Atmospheric Chemistry and Physics
Main Authors: Tian, Wenshou, Li, Yuanpu, Xie, Fei, Zhang, Jiankai, Chipperfield, Martyn P., Feng, Wuhu, Hu, Yongyun, Zhao, Sen, Zhou, Xin, Yang, Yun, Ma, Xuan
Other Authors: Xie, F (reprint author), Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China., Lanzhou Univ, Coll Atmospher Sci, Lanzhou, Peoples R China., Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China., Univ Leeds, Sch Earth & Environm, ICAS, Leeds, W Yorkshire, England., Univ Leeds, Sch Earth & Environm, NCAS, Leeds, W Yorkshire, England., Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing, Peoples R China., Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ, Nanjing, Jiangsu, Peoples R China., Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing, Jiangsu, Peoples R China., Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Honolulu, HI USA., Chengdu Univ Informat Technol, Coll Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu, Peoples R China.
Format: Journal/Newspaper
Language:English
Published: ATMOSPHERIC CHEMISTRY AND PHYSICS 2017
Subjects:
QUASI-BIENNIAL OSCILLATION
CHEMISTRY-CLIMATE MODEL
NORTHERN MIDDLE LATITUDES
ANTARCTIC OZONE
EL-NINO
POLAR VORTEX
INTERANNUAL VARIABILITY
ATMOSPHERIC DYNAMICS
MIDLATITUDE OZONE
EQUATORIAL QBO
Antarctic
Austral
Pacific
Antarc*
Online Access:https://hdl.handle.net/20.500.11897/472852
https://doi.org/10.5194/acp-17-6705-2017
Description
Summary:Using satellite observations, reanalysis data, and model simulations, this study investigates the effect of sea surface temperature (SST) on interannual variations of lower-stratospheric ozone at southern high latitudes in austral spring. It is found that the SST variations across the East Asian marginal seas (5 degrees S-35 degrees N, 100-140 degrees E) rather than the tropical eastern Pacific Ocean, where ENSO occurs, have the most significant correlation with the southern high-latitude lower-stratospheric ozone changes in austral spring. Further analysis reveals that planetary waves originating over the marginal seas in austral spring can propagate towards southern middle to high latitudes via teleconnection pathway. The anomalous propagation and dissipation of ultra-long Rossby waves in the stratosphere strengthen/cool (weaken/warm) the southern polar vortex, which produces more (less) active chlorine and enhances (suppresses) ozone depletion in the southern high-latitude stratosphere on one the hand and impedes (favors) the transport of ozone from the southern middle-latitude stratosphere to high latitudes on the other. The model simulations also reveal that approximately 17% of the decreasing trend in the southern high-latitude lower-stratospheric ozone observed over the past 5 decades may be associated with the increasing trend in SST over the East Asian marginal seas. National Natural Science Foundations of China [41575038, 41375072, 41530423, 41575039]; UK National Centre for Atmospheric Science (NCAS) SCI(E) ARTICLE 11 6705-6722 17

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