Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method
Global measurements of total ozone are necessary to evaluate ozone hole recovery above Antarctica. The Environmental Trace Gases Monitoring Instrument (EMI) onboard GaoFen 5, launched in May 2018, was developed to measure and monitor the global total ozone column (TOC) and distributions of other tra...
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ftdoajarticles:oai:doaj.org/article:5cd0ca31b1a24b2b942e9be45090a01b 2023-05-15T14:02:36+02:00 Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method Yuanyuan Qian Yuhan Luo Fuqi Si Haijin Zhou Taiping Yang Dongshang Yang Liang Xi 2021-05-01T00:00:00Z https://doi.org/10.3390/rs13112098 https://doaj.org/article/5cd0ca31b1a24b2b942e9be45090a01b EN eng MDPI AG https://www.mdpi.com/2072-4292/13/11/2098 https://doaj.org/toc/2072-4292 doi:10.3390/rs13112098 2072-4292 https://doaj.org/article/5cd0ca31b1a24b2b942e9be45090a01b Remote Sensing, Vol 13, Iss 2098, p 2098 (2021) GaoFen 5 Environmental Trace Gases Monitoring Instrument total ozone column DOAS ozone hole Science Q article 2021 ftdoajarticles https://doi.org/10.3390/rs13112098 2022-12-31T15:35:40Z Global measurements of total ozone are necessary to evaluate ozone hole recovery above Antarctica. The Environmental Trace Gases Monitoring Instrument (EMI) onboard GaoFen 5, launched in May 2018, was developed to measure and monitor the global total ozone column (TOC) and distributions of other trace gases. In this study, some of the first global TOC results of the EMI using the differential optical absorption spectroscopy (DOAS) method and validation with ground-based TOC measurements and data derived from Ozone Monitoring Instrument (OMI) and TROPOspheric Monitoring Instrument (TROPOMI) observations are presented. Results show that monthly average EMI TOC data had a similar spatial distribution and a high correlation coefficient (R ≥ 0.99) with both OMI and TROPOMI TOC. Comparisons with ground-based measurements from the World Ozone and Ultraviolet Radiation Data Centre also revealed strong correlations (R > 0.9). Continuous zenith sky measurements from zenith scattered light differential optical absorption spectroscopy instruments in Antarctica were also used for validation (R = 0.9). The EMI-derived observations were able to account for the rapid change in TOC associated with the sudden stratospheric warming event in October 2019; monthly average TOC in October 2019 was 45% higher compared to October 2018. These results indicate that EMI TOC derived using the DOAS method is reliable and has the potential to be used for global TOC monitoring. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Remote Sensing 13 11 2098 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
GaoFen 5 Environmental Trace Gases Monitoring Instrument total ozone column DOAS ozone hole Science Q |
spellingShingle |
GaoFen 5 Environmental Trace Gases Monitoring Instrument total ozone column DOAS ozone hole Science Q Yuanyuan Qian Yuhan Luo Fuqi Si Haijin Zhou Taiping Yang Dongshang Yang Liang Xi Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method |
topic_facet |
GaoFen 5 Environmental Trace Gases Monitoring Instrument total ozone column DOAS ozone hole Science Q |
description |
Global measurements of total ozone are necessary to evaluate ozone hole recovery above Antarctica. The Environmental Trace Gases Monitoring Instrument (EMI) onboard GaoFen 5, launched in May 2018, was developed to measure and monitor the global total ozone column (TOC) and distributions of other trace gases. In this study, some of the first global TOC results of the EMI using the differential optical absorption spectroscopy (DOAS) method and validation with ground-based TOC measurements and data derived from Ozone Monitoring Instrument (OMI) and TROPOspheric Monitoring Instrument (TROPOMI) observations are presented. Results show that monthly average EMI TOC data had a similar spatial distribution and a high correlation coefficient (R ≥ 0.99) with both OMI and TROPOMI TOC. Comparisons with ground-based measurements from the World Ozone and Ultraviolet Radiation Data Centre also revealed strong correlations (R > 0.9). Continuous zenith sky measurements from zenith scattered light differential optical absorption spectroscopy instruments in Antarctica were also used for validation (R = 0.9). The EMI-derived observations were able to account for the rapid change in TOC associated with the sudden stratospheric warming event in October 2019; monthly average TOC in October 2019 was 45% higher compared to October 2018. These results indicate that EMI TOC derived using the DOAS method is reliable and has the potential to be used for global TOC monitoring. |
format |
Article in Journal/Newspaper |
author |
Yuanyuan Qian Yuhan Luo Fuqi Si Haijin Zhou Taiping Yang Dongshang Yang Liang Xi |
author_facet |
Yuanyuan Qian Yuhan Luo Fuqi Si Haijin Zhou Taiping Yang Dongshang Yang Liang Xi |
author_sort |
Yuanyuan Qian |
title |
Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method |
title_short |
Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method |
title_full |
Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method |
title_fullStr |
Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method |
title_full_unstemmed |
Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method |
title_sort |
total ozone columns from the environmental trace gases monitoring instrument (emi) using the doas method |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13112098 https://doaj.org/article/5cd0ca31b1a24b2b942e9be45090a01b |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Remote Sensing, Vol 13, Iss 2098, p 2098 (2021) |
op_relation |
https://www.mdpi.com/2072-4292/13/11/2098 https://doaj.org/toc/2072-4292 doi:10.3390/rs13112098 2072-4292 https://doaj.org/article/5cd0ca31b1a24b2b942e9be45090a01b |
op_doi |
https://doi.org/10.3390/rs13112098 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
11 |
container_start_page |
2098 |
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1766272918116892672 |