气候变化领域集成服务门户(CCPortal): South Pole Station ozonesondes: variability and trends in the springtimeAntarctic ozone hole 1986-2021

CCPortal

DOI	10.5194/acp-23-3133-2023
	South Pole Station ozonesondes: variability and trends in the springtimeAntarctic ozone hole 1986-2021
	Johnson, Bryan J.; Cullis, Patrick; Booth, John; Petropavlovskikh, Irina; McConville, Glen; Hassler, Birgit; Morris, Gary A.; Sterling, Chance; Oltmans, Samuel
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	3133
结束页码	3146
卷号	23 期号:5 页码:14
英文摘要	Balloon-borne ozonesondes launched weekly from South Pole Station (1986-2021) measure high-vertical-resolution profiles of ozone and temperature from the surface to 30-35 km altitude. The launch frequency is increased in late winter before the onset of rapid stratospheric ozone loss in September. Ozone hole metrics show that the yearly total column ozone and 14-21 km partial column ozone minimum values and September loss rate trends have been improving (less severe) since 2001. The 36-year record also shows interannual variability, especially in recent years (2019-2021). Here we show additional details of these 3 years by comparing annual minimum profiles observed on the date when the lowest integrated total column ozone occurs. We also compare the July-December time series of the 14-21 km partial column ozone values to the 36-year median with percentile intervals. The 2019 anomalous vortex breakdown showed stratospheric temperatures began warming in early September followed by reduced ozone loss. The minimum total column ozone of 180 Dobson units (DU) was observed on 24 September. This was followed by two stable and cold polar vortex years during 2020 and 2021 with total column ozone minimums at 104 DU (1 October) and 102 DU (7 October), respectively. These years also showed broad near-zero-ozone (loss saturation) regions within the 14-21 km layer by the end of September which persisted into October.Validation of the ozonesonde observations is conducted through the ongoing comparison of total column ozone measurements with the South Pole ground-based Dobson spectrophotometer. The ozonesondes show a more positive bias of 2 +/- 3 % (higher) than the Dobson following a thorough evaluation and homogenization of the long-term ozonesonde record completed in 2018.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000946536900001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273407
作者单位	National Oceanic Atmospheric Admin (NOAA) - USA; University of Colorado System; University of Colorado Boulder; Helmholtz Association; German Aerospace Centre (DLR)
推荐引用方式 GB/T 7714	Johnson, Bryan J.,Cullis, Patrick,Booth, John,et al. South Pole Station ozonesondes: variability and trends in the springtimeAntarctic ozone hole 1986-2021[J],2023,23(5):14.
APA	Johnson, Bryan J..,Cullis, Patrick.,Booth, John.,Petropavlovskikh, Irina.,McConville, Glen.,...&Oltmans, Samuel.(2023).South Pole Station ozonesondes: variability and trends in the springtimeAntarctic ozone hole 1986-2021.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(5),14.
MLA	Johnson, Bryan J.,et al."South Pole Station ozonesondes: variability and trends in the springtimeAntarctic ozone hole 1986-2021".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.5(2023):14.