A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles
We present a framework for estimating concentrations of episodically elevated high-temperature marine ice nucleating particles (INPs) in the sea surface microlayer and their subsequent emission into the atmospheric boundary layer. These episodic INPs have been observed in multiple ship-based and coa...
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ftosti:oai:osti.gov:1854909 2023-07-30T04:05:38+02:00 A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles Steinke, Isabelle DeMott, Paul J. Deane, Grant B. Hill, Thomas J. Maltrud, Mathew Raman, Aishwarya Burrows, Susannah M. 2022-04-07 application/pdf http://www.osti.gov/servlets/purl/1854909 https://www.osti.gov/biblio/1854909 https://doi.org/10.5194/acp-22-847-2022 unknown http://www.osti.gov/servlets/purl/1854909 https://www.osti.gov/biblio/1854909 https://doi.org/10.5194/acp-22-847-2022 doi:10.5194/acp-22-847-2022 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.5194/acp-22-847-2022 2023-07-11T10:11:08Z We present a framework for estimating concentrations of episodically elevated high-temperature marine ice nucleating particles (INPs) in the sea surface microlayer and their subsequent emission into the atmospheric boundary layer. These episodic INPs have been observed in multiple ship-based and coastal field campaigns, but the processes controlling their ocean concentrations and transfer to the atmosphere are not yet fully understood. We use a combination of empirical constraints and simulation outputs from an Earth system model to explore different hypotheses for explaining the variability of INP concentrations, and the occurrence of episodic INPs, in the marine atmosphere. In our calculations, we examine the following two proposed oceanic sources of high-temperature INPs: heterotrophic bacteria and marine biopolymer aggregates (MBPAs). Furthermore, we assume that the emission of these INPs is determined by the production of supermicron sea spray aerosol formed from jet drops, with an entrainment probability that is described by Poisson statistics. The concentration of jet drops is derived from the number concentration of supermicron sea spray aerosol calculated from model runs. We then derive the resulting number concentrations of marine high-temperature INPs (at 253 K) in the atmospheric boundary layer and compare their variability to atmospheric observations of INP variability. Specifically, we compare against concentrations of episodically occurring high-temperature INPs observed during field campaigns in the Southern Ocean, the Equatorial Pacific, and the North Atlantic. In this case study, we evaluate our framework at 253 K because reliable observational data at this temperature are available across three different ocean regions, but suitable data are sparse at higher temperatures. We find that heterotrophic bacteria and MBPAs acting as INPs provide only a partial explanation for the observed high INP concentrations. We note, however, that there are still substantial knowledge gaps, particularly ... Other/Unknown Material North Atlantic Southern Ocean SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Southern Ocean Pacific Atmospheric Chemistry and Physics 22 2 847 859 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
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54 ENVIRONMENTAL SCIENCES |
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54 ENVIRONMENTAL SCIENCES Steinke, Isabelle DeMott, Paul J. Deane, Grant B. Hill, Thomas J. Maltrud, Mathew Raman, Aishwarya Burrows, Susannah M. A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
We present a framework for estimating concentrations of episodically elevated high-temperature marine ice nucleating particles (INPs) in the sea surface microlayer and their subsequent emission into the atmospheric boundary layer. These episodic INPs have been observed in multiple ship-based and coastal field campaigns, but the processes controlling their ocean concentrations and transfer to the atmosphere are not yet fully understood. We use a combination of empirical constraints and simulation outputs from an Earth system model to explore different hypotheses for explaining the variability of INP concentrations, and the occurrence of episodic INPs, in the marine atmosphere. In our calculations, we examine the following two proposed oceanic sources of high-temperature INPs: heterotrophic bacteria and marine biopolymer aggregates (MBPAs). Furthermore, we assume that the emission of these INPs is determined by the production of supermicron sea spray aerosol formed from jet drops, with an entrainment probability that is described by Poisson statistics. The concentration of jet drops is derived from the number concentration of supermicron sea spray aerosol calculated from model runs. We then derive the resulting number concentrations of marine high-temperature INPs (at 253 K) in the atmospheric boundary layer and compare their variability to atmospheric observations of INP variability. Specifically, we compare against concentrations of episodically occurring high-temperature INPs observed during field campaigns in the Southern Ocean, the Equatorial Pacific, and the North Atlantic. In this case study, we evaluate our framework at 253 K because reliable observational data at this temperature are available across three different ocean regions, but suitable data are sparse at higher temperatures. We find that heterotrophic bacteria and MBPAs acting as INPs provide only a partial explanation for the observed high INP concentrations. We note, however, that there are still substantial knowledge gaps, particularly ... |
author |
Steinke, Isabelle DeMott, Paul J. Deane, Grant B. Hill, Thomas J. Maltrud, Mathew Raman, Aishwarya Burrows, Susannah M. |
author_facet |
Steinke, Isabelle DeMott, Paul J. Deane, Grant B. Hill, Thomas J. Maltrud, Mathew Raman, Aishwarya Burrows, Susannah M. |
author_sort |
Steinke, Isabelle |
title |
A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles |
title_short |
A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles |
title_full |
A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles |
title_fullStr |
A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles |
title_full_unstemmed |
A numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles |
title_sort |
numerical framework for simulating the atmospheric variability of supermicron marine biogenic ice nucleating particles |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1854909 https://www.osti.gov/biblio/1854909 https://doi.org/10.5194/acp-22-847-2022 |
geographic |
Southern Ocean Pacific |
geographic_facet |
Southern Ocean Pacific |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_relation |
http://www.osti.gov/servlets/purl/1854909 https://www.osti.gov/biblio/1854909 https://doi.org/10.5194/acp-22-847-2022 doi:10.5194/acp-22-847-2022 |
op_doi |
https://doi.org/10.5194/acp-22-847-2022 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
22 |
container_issue |
2 |
container_start_page |
847 |
op_container_end_page |
859 |
_version_ |
1772817690334855168 |