Chemical kinetics of near-surface ozone at a suburban location in India
The spatial gradient in near-surface ozone (O3) is controlled by its production, sink, and net transport (advection/convection and diffusive) in the atmosphere. In this work, we used continuous long-term measurements of O3, oxides of nitrogen (NOx = NO + NO2), and meteorological data in the suburban...
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| Language: | English |
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Frontiers Media S.A.
2023-09-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2023.1178833/full |
| _version_ | 1797685913266946048 |
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| author | Vijay Kumar Sagar Vijay Kumar Sagar Asuri Lakshmi Kanchana Rabindra Kumar Nayak Suvarna Fadnavis Vijay P. Kanawade |
| author_facet | Vijay Kumar Sagar Vijay Kumar Sagar Asuri Lakshmi Kanchana Rabindra Kumar Nayak Suvarna Fadnavis Vijay P. Kanawade |
| author_sort | Vijay Kumar Sagar |
| collection | DOAJ |
| description | The spatial gradient in near-surface ozone (O3) is controlled by its production, sink, and net transport (advection/convection and diffusive) in the atmosphere. In this work, we used continuous long-term measurements of O3, oxides of nitrogen (NOx = NO + NO2), and meteorological data in the suburban location of Shadnagar, India. Data analyses were performed to investigate the governing processes that control O3 variability on diurnal and seasonal time scales. The role of chemistry in O3 variability, including both formation and destruction processes, was investigated using known chemical kinetics and a radiative transfer model. The residual between observations and chemical estimation was further analyzed to examine the role of transport and unresolved processes/uncertainty in the dataset. The O3 residual was duly validated using model reanalysis data of O3 and meteorological parameters to further estimate the O3 transport. Our analyses show that the average net production and net transport of near-surface O3 are 3.18 and 0.87 ppbv/h, respectively, while horizontal advection is 0.01 ppbv/h in the daytime. The production of ozone was found to be dominant, indicating the influx of ozone at the site. Overall, our results highlight that spatio-temporal variability in near-surface ozone is strongly controlled by net production in Shadnagar and may be applicable in similar environments globally. |
| first_indexed | 2024-03-12T00:57:15Z |
| format | Article |
| id | doaj.art-758059087a7a42b2bddd2cb9daabaa07 |
| institution | Directory Open Access Journal |
| issn | 2296-665X |
| language | English |
| last_indexed | 2024-03-12T00:57:15Z |
| publishDate | 2023-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj.art-758059087a7a42b2bddd2cb9daabaa072023-09-14T12:36:53ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2023-09-011110.3389/fenvs.2023.11788331178833Chemical kinetics of near-surface ozone at a suburban location in IndiaVijay Kumar Sagar0Vijay Kumar Sagar1Asuri Lakshmi Kanchana2Rabindra Kumar Nayak3Suvarna Fadnavis4Vijay P. Kanawade5Centre for Earth, Ocean and Atmospheric Sciences, University of Hyderabad, Hyderabad, IndiaNational Remote Sensing Centre, Indian Space Research Organization (ISRO), Hyderabad, IndiaNational Remote Sensing Centre, Indian Space Research Organization (ISRO), Hyderabad, IndiaNational Remote Sensing Centre, Indian Space Research Organization (ISRO), Hyderabad, IndiaIndian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pune, IndiaCentre for Earth, Ocean and Atmospheric Sciences, University of Hyderabad, Hyderabad, IndiaThe spatial gradient in near-surface ozone (O3) is controlled by its production, sink, and net transport (advection/convection and diffusive) in the atmosphere. In this work, we used continuous long-term measurements of O3, oxides of nitrogen (NOx = NO + NO2), and meteorological data in the suburban location of Shadnagar, India. Data analyses were performed to investigate the governing processes that control O3 variability on diurnal and seasonal time scales. The role of chemistry in O3 variability, including both formation and destruction processes, was investigated using known chemical kinetics and a radiative transfer model. The residual between observations and chemical estimation was further analyzed to examine the role of transport and unresolved processes/uncertainty in the dataset. The O3 residual was duly validated using model reanalysis data of O3 and meteorological parameters to further estimate the O3 transport. Our analyses show that the average net production and net transport of near-surface O3 are 3.18 and 0.87 ppbv/h, respectively, while horizontal advection is 0.01 ppbv/h in the daytime. The production of ozone was found to be dominant, indicating the influx of ozone at the site. Overall, our results highlight that spatio-temporal variability in near-surface ozone is strongly controlled by net production in Shadnagar and may be applicable in similar environments globally.https://www.frontiersin.org/articles/10.3389/fenvs.2023.1178833/fullozonechemical kineticsoxides of nitrogenproductiondestructionadvective transport |
| spellingShingle | Vijay Kumar Sagar Vijay Kumar Sagar Asuri Lakshmi Kanchana Rabindra Kumar Nayak Suvarna Fadnavis Vijay P. Kanawade Chemical kinetics of near-surface ozone at a suburban location in India Frontiers in Environmental Science ozone chemical kinetics oxides of nitrogen production destruction advective transport |
| title | Chemical kinetics of near-surface ozone at a suburban location in India |
| title_full | Chemical kinetics of near-surface ozone at a suburban location in India |
| title_fullStr | Chemical kinetics of near-surface ozone at a suburban location in India |
| title_full_unstemmed | Chemical kinetics of near-surface ozone at a suburban location in India |
| title_short | Chemical kinetics of near-surface ozone at a suburban location in India |
| title_sort | chemical kinetics of near surface ozone at a suburban location in india |
| topic | ozone chemical kinetics oxides of nitrogen production destruction advective transport |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2023.1178833/full |
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