GSTDTAP
DOI10.5194/acp-19-14387-2019
On the impact of future climate change on tropopause folds and tropospheric ozone
Akritidis, Dimitris1; Pozzer, Andrea2; Zanis, Prodromos1
2019-11-28
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2019
卷号19期号:22页码:14387-14401
文章类型Article
语种英语
国家Greece; Germany
英文摘要

Using a transient simulation for the period 19602100 with the state-of-the-art ECHAM5/MESSy Atmospheric Chemistry (EMAC) global model and a tropopause fold identification algorithm, we explore the future projected changes in tropopause folds, stratosphere-to-troposphere transport (STT) of ozone, and tropospheric ozone under the RCP6.0 scenario. Statistically significant changes in tropopause fold frequencies from 1970-1999 to 2070-2099 are identified in both hemispheres, regionally exceeding 3 %, and are associated with the projected changes in the position and intensity of the subtropical jet streams. A strengthening of ozone STT is projected for the future in both hemispheres, with an induced increase in transported stratospheric ozone tracer throughout the whole troposphere, reaching up to 10 nmol mol(-1) in the upper troposphere, 8 nmol mol(-1) in the middle troposphere, and 3 nmol mol(-1) near the surface. Notably, the regions exhibiting the largest changes of ozone STT at 400 hPa coincide with those with the highest fold frequency changes, highlighting the role of the tropopause folding mechanism in STT processes under a changing climate. For both the eastern Mediterranean and Middle East (EMME) and Afghanistan (AFG) regions, which are known as hotspots of fold activity and ozone STT during the summer period, the year-to-year variability of middle-tropospheric ozone with stratospheric origin is largely explained by the short-term variations in ozone at 150 hPa and tropopause fold frequency. Finally, ozone in the lower troposphere is projected to decrease under the RCP6.0 scenario during MAM (March, April, and May) and JJA (June, July, and August) in the Northern Hemisphere and during DJF (December, January, and February) in the Southern Hemisphere, due to the decline of ozone precursor emissions and the enhanced ozone loss from higher water vapour abundances, while in the rest of the troposphere ozone shows a remarkable increase owing mainly to the STT strengthening and the stratospheric ozone recovery.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000499988700002
WOS关键词BREWER-DOBSON CIRCULATION ; AIR-QUALITY ; ATMOSPHERIC CHEMISTRY ; SURFACE OZONE ; MODEL ; EMISSIONS ; STRATOSPHERE ; SUBMODEL ; TRANSPORT ; BUDGET
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/224089
专题环境与发展全球科技态势
作者单位1.Aristotle Univ Thessaloniki, Sch Geol, Dept Meteorol & Climatol, Thessaloniki, Greece;
2.Max Planck Inst Chem, Atmospher Chem Dept, Mainz, Germany
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GB/T 7714
Akritidis, Dimitris,Pozzer, Andrea,Zanis, Prodromos. On the impact of future climate change on tropopause folds and tropospheric ozone[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(22):14387-14401.
APA Akritidis, Dimitris,Pozzer, Andrea,&Zanis, Prodromos.(2019).On the impact of future climate change on tropopause folds and tropospheric ozone.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(22),14387-14401.
MLA Akritidis, Dimitris,et al."On the impact of future climate change on tropopause folds and tropospheric ozone".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.22(2019):14387-14401.
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