Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data
The NASA Atmospheric Tomography Mission (ATom) completed four seasonal deployments (August 2016, February 2017, October 2017, May 2018), each with regular 0.2–12 km profiling by transecting the remote Pacific Ocean and Atlantic Ocean basins. Additional data were also acquired for the Southern Ocean,...
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Copernicus Publications
2023
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00067942 2023-08-27T04:05:09+02:00 Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data Prather, Michael J. Guo, Hao Zhu, Xin 2023-07 electronic https://doi.org/10.5194/essd-15-3299-2023 https://noa.gwlb.de/receive/cop_mods_00067942 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066382/essd-15-3299-2023.pdf https://essd.copernicus.org/articles/15/3299/2023/essd-15-3299-2023.pdf eng eng Copernicus Publications Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-15-3299-2023 https://noa.gwlb.de/receive/cop_mods_00067942 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066382/essd-15-3299-2023.pdf https://essd.copernicus.org/articles/15/3299/2023/essd-15-3299-2023.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/essd-15-3299-2023 2023-08-06T23:19:56Z The NASA Atmospheric Tomography Mission (ATom) completed four seasonal deployments (August 2016, February 2017, October 2017, May 2018), each with regular 0.2–12 km profiling by transecting the remote Pacific Ocean and Atlantic Ocean basins. Additional data were also acquired for the Southern Ocean, the Arctic basin, and two flights over Antarctica. ATom in situ measurements provide a near-complete chemical characterization of the ∼ 140 000 10 s (80 m by 2 km) air parcels measured along the flight path. This paper presents the Modeling Data Stream (MDS), a continuous gap-filled record of the 10 s parcels containing the chemical species needed to initialize a gas-phase chemistry model for the budgets of tropospheric ozone and methane. Global 3D models have been used to calculate the Reactivity Data Stream (RDS), which is comprised of the chemical reactivities (production and loss) for methane, ozone, and carbon monoxide, through 24 h integration of the 10 s parcels. These parcels accurately sample tropospheric heterogeneity and allow us to partially deconstruct the spatial scales and variability that define tropospheric chemistry from composition to reactions. This paper provides a first look at and analysis of the up-to-date MDS and RDS data including all four deployments (Prather et al., 2023, https://doi.org/10.7280/D1B12H). ATom's regular profiling of the ocean basins allows for weighted averages to build probability densities for the key species and reactivities presented here. These statistics provide climatological metrics for global chemistry models, e.g., the large-scale pattern of ozone and methane loss in the lower troposphere and the more sporadic hotspots of ozone production in the upper troposphere. The profiling curtains of reactivity also identify meteorologically variable and hence deployment-specific hotspots of photochemical activity. Added calculations of the sensitivities of the production and loss terms relative to each species emphasize the few dominant species that control the ozone and ... Article in Journal/Newspaper Antarc* Antarctica Arctic Basin Arctic Southern Ocean Niedersächsisches Online-Archiv NOA Arctic Pacific Southern Ocean Earth System Science Data 15 7 3299 3349 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Prather, Michael J. Guo, Hao Zhu, Xin Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data |
topic_facet |
article Verlagsveröffentlichung |
description |
The NASA Atmospheric Tomography Mission (ATom) completed four seasonal deployments (August 2016, February 2017, October 2017, May 2018), each with regular 0.2–12 km profiling by transecting the remote Pacific Ocean and Atlantic Ocean basins. Additional data were also acquired for the Southern Ocean, the Arctic basin, and two flights over Antarctica. ATom in situ measurements provide a near-complete chemical characterization of the ∼ 140 000 10 s (80 m by 2 km) air parcels measured along the flight path. This paper presents the Modeling Data Stream (MDS), a continuous gap-filled record of the 10 s parcels containing the chemical species needed to initialize a gas-phase chemistry model for the budgets of tropospheric ozone and methane. Global 3D models have been used to calculate the Reactivity Data Stream (RDS), which is comprised of the chemical reactivities (production and loss) for methane, ozone, and carbon monoxide, through 24 h integration of the 10 s parcels. These parcels accurately sample tropospheric heterogeneity and allow us to partially deconstruct the spatial scales and variability that define tropospheric chemistry from composition to reactions. This paper provides a first look at and analysis of the up-to-date MDS and RDS data including all four deployments (Prather et al., 2023, https://doi.org/10.7280/D1B12H). ATom's regular profiling of the ocean basins allows for weighted averages to build probability densities for the key species and reactivities presented here. These statistics provide climatological metrics for global chemistry models, e.g., the large-scale pattern of ozone and methane loss in the lower troposphere and the more sporadic hotspots of ozone production in the upper troposphere. The profiling curtains of reactivity also identify meteorologically variable and hence deployment-specific hotspots of photochemical activity. Added calculations of the sensitivities of the production and loss terms relative to each species emphasize the few dominant species that control the ozone and ... |
format |
Article in Journal/Newspaper |
author |
Prather, Michael J. Guo, Hao Zhu, Xin |
author_facet |
Prather, Michael J. Guo, Hao Zhu, Xin |
author_sort |
Prather, Michael J. |
title |
Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data |
title_short |
Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data |
title_full |
Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data |
title_fullStr |
Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data |
title_full_unstemmed |
Deconstruction of tropospheric chemical reactivity using aircraft measurements: the Atmospheric Tomography Mission (ATom) data |
title_sort |
deconstruction of tropospheric chemical reactivity using aircraft measurements: the atmospheric tomography mission (atom) data |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/essd-15-3299-2023 https://noa.gwlb.de/receive/cop_mods_00067942 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066382/essd-15-3299-2023.pdf https://essd.copernicus.org/articles/15/3299/2023/essd-15-3299-2023.pdf |
geographic |
Arctic Pacific Southern Ocean |
geographic_facet |
Arctic Pacific Southern Ocean |
genre |
Antarc* Antarctica Arctic Basin Arctic Southern Ocean |
genre_facet |
Antarc* Antarctica Arctic Basin Arctic Southern Ocean |
op_relation |
Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-15-3299-2023 https://noa.gwlb.de/receive/cop_mods_00067942 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066382/essd-15-3299-2023.pdf https://essd.copernicus.org/articles/15/3299/2023/essd-15-3299-2023.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/essd-15-3299-2023 |
container_title |
Earth System Science Data |
container_volume |
15 |
container_issue |
7 |
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3299 |
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3349 |
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1775356321013432320 |