On the use of satellite observations to fill gaps in the Halley station total ozone record
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 f...
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ftdoajarticles:oai:doaj.org/article:c008b6f9e2f246a39ed110d16e0d3c1b 2023-05-15T13:38:18+02:00 On the use of satellite observations to fill gaps in the Halley station total ozone record L. N. Zhang S. Solomon K. A. Stone J. D. Shanklin J. D. Eveson S. Colwell J. P. Burrows M. Weber P. F. Levelt N. A. Kramarova D. P. Haffner 2021-06-01T00:00:00Z https://doi.org/10.5194/acp-21-9829-2021 https://doaj.org/article/c008b6f9e2f246a39ed110d16e0d3c1b EN eng Copernicus Publications https://acp.copernicus.org/articles/21/9829/2021/acp-21-9829-2021.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-21-9829-2021 1680-7316 1680-7324 https://doaj.org/article/c008b6f9e2f246a39ed110d16e0d3c1b Atmospheric Chemistry and Physics, Vol 21, Pp 9829-9838 (2021) Physics QC1-999 Chemistry QD1-999 article 2021 ftdoajarticles https://doi.org/10.5194/acp-21-9829-2021 2022-12-31T06:55:44Z 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 ± 6.2 DU 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. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Halley Station ENVELOPE(-26.541,-26.541,-75.581,-75.581) Halley Research Station ENVELOPE(-26.209,-26.209,-75.605,-75.605) Atmospheric Chemistry and Physics 21 12 9829 9838 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 L. N. Zhang S. Solomon K. A. Stone J. D. Shanklin J. D. Eveson S. Colwell J. P. Burrows M. Weber P. F. Levelt N. A. Kramarova D. P. Haffner On the use of satellite observations to fill gaps in the Halley station total ozone record |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
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 ± 6.2 DU 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. |
format |
Article in Journal/Newspaper |
author |
L. N. Zhang S. Solomon K. A. Stone J. D. Shanklin J. D. Eveson S. Colwell J. P. Burrows M. Weber P. F. Levelt N. A. Kramarova D. P. Haffner |
author_facet |
L. N. Zhang S. Solomon K. A. Stone J. D. Shanklin J. D. Eveson S. Colwell J. P. Burrows M. Weber P. F. Levelt N. A. Kramarova D. P. Haffner |
author_sort |
L. N. Zhang |
title |
On the use of satellite observations to fill gaps in the Halley station total ozone record |
title_short |
On the use of satellite observations to fill gaps in the Halley station total ozone record |
title_full |
On the use of satellite observations to fill gaps in the Halley station total ozone record |
title_fullStr |
On the use of satellite observations to fill gaps in the Halley station total ozone record |
title_full_unstemmed |
On the use of satellite observations to fill gaps in the Halley station total ozone record |
title_sort |
on the use of satellite observations to fill gaps in the halley station total ozone record |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-9829-2021 https://doaj.org/article/c008b6f9e2f246a39ed110d16e0d3c1b |
long_lat |
ENVELOPE(-26.541,-26.541,-75.581,-75.581) ENVELOPE(-26.209,-26.209,-75.605,-75.605) |
geographic |
Antarctic The Antarctic Halley Station Halley Research Station |
geographic_facet |
Antarctic The Antarctic Halley Station Halley Research Station |
genre |
Antarc* Antarctic Ice Shelf |
genre_facet |
Antarc* Antarctic Ice Shelf |
op_source |
Atmospheric Chemistry and Physics, Vol 21, Pp 9829-9838 (2021) |
op_relation |
https://acp.copernicus.org/articles/21/9829/2021/acp-21-9829-2021.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-21-9829-2021 1680-7316 1680-7324 https://doaj.org/article/c008b6f9e2f246a39ed110d16e0d3c1b |
op_doi |
https://doi.org/10.5194/acp-21-9829-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
12 |
container_start_page |
9829 |
op_container_end_page |
9838 |
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1766103502047674368 |