气候变化领域集成服务门户(CCPortal): On the use of satellite observations to fill gaps in the Halley station total ozone record

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DOI	10.5194/acp-21-9829-2021
	On the use of satellite observations to fill gaps in the Halley station total ozone record
	Zhang L.N.; Solomon S.; Stone K.A.; Shanklin J.D.; Eveson J.D.; Colwell S.; Burrows J.P.; Weber M.; Levelt P.F.; Kramarova N.A.; Haffner D.P.
发表日期	2021
ISSN	1680-7316
起始页码	9829
结束页码	9838
卷号	21 期号:12
英文摘要	Measurements by the Dobson ozone spectrophotometer at the British Antarctic Survey's (BAS) Halley research station form a record of Antarctic total column ozone that dates back to 1956. Due to its location, length, and completeness, the record has been, and continues to be, uniquely important for studies of long-term changes in Antarctic ozone. However, a crack in the ice shelf on which it resides forced the station to abruptly close in February of 2017, leading to a gap of two ozone hole seasons in its historic record. We develop and test a method for filling in the record of Halley total ozone by combining and adjusting overpass data from a range of different satellite instruments. Comparisons to the Dobson suggest that our method reproduces monthly ground-based total ozone values with an average difference of 1.1±6.2DU for the satellites used to fill in the 2017-2018 gap. We show that our approach more closely reproduces the Dobson measurements than simply using the raw satellite average or data from a single satellite instrument. The method also provides a check on the consistency of the provisional data from the automated Dobson used at Halley after 2018 with earlier manual Dobson data and suggests that there were likely inconsistencies between the two. The filled Halley dataset provides further support that the Antarctic ozone hole is healing, not only during September but also in January. © 2021 Lily N. Zhang et al.
语种	英语
scopus关键词	automation; comparative study; data set; satellite imagery; total ozone; Antarctica; East Antarctica; Halley Station; Satellites
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/246771
作者单位	Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; British Antarctic Survey, Cambridge, CB3 0ET, United Kingdom; Institute of Environmental Physics, University of Bremen, Bremen, 28334, Germany; KNMI, De Bilt, 3731, Netherlands; University of Technology Delft, Delft, 2628, Netherlands; NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Science Systems and Applications, Inc., Lanham, MD 20706, United States
推荐引用方式 GB/T 7714	Zhang L.N.,Solomon S.,Stone K.A.,et al. On the use of satellite observations to fill gaps in the Halley station total ozone record[J],2021,21(12).
APA	Zhang L.N..,Solomon S..,Stone K.A..,Shanklin J.D..,Eveson J.D..,...&Haffner D.P..(2021).On the use of satellite observations to fill gaps in the Halley station total ozone record.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(12).
MLA	Zhang L.N.,et al."On the use of satellite observations to fill gaps in the Halley station total ozone record".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.12(2021).