Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe
Ice particle activation and evolution have important atmospheric implications for cloud formation, initiation of precipitation and radiative interactions. The initial formation of atmospheric ice by heterogeneous ice nucleation requires the presence of a nucleating seed, an ice-nucleating particle (...
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ftdoajarticles:oai:doaj.org/article:56631ceaefbe4073ab09f8d2170d3b2a 2023-05-15T15:14:19+02:00 Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe J. Schrod E. S. Thomson D. Weber J. Kossmann C. Pöhlker J. Saturno F. Ditas P. Artaxo V. Clouard J.-M. Saurel M. Ebert J. Curtius H. G. Bingemer 2020-12-01T00:00:00Z https://doi.org/10.5194/acp-20-15983-2020 https://doaj.org/article/56631ceaefbe4073ab09f8d2170d3b2a EN eng Copernicus Publications https://acp.copernicus.org/articles/20/15983/2020/acp-20-15983-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-15983-2020 1680-7316 1680-7324 https://doaj.org/article/56631ceaefbe4073ab09f8d2170d3b2a Atmospheric Chemistry and Physics, Vol 20, Pp 15983-16006 (2020) Physics QC1-999 Chemistry QD1-999 article 2020 ftdoajarticles https://doi.org/10.5194/acp-20-15983-2020 2022-12-31T15:42:58Z Ice particle activation and evolution have important atmospheric implications for cloud formation, initiation of precipitation and radiative interactions. The initial formation of atmospheric ice by heterogeneous ice nucleation requires the presence of a nucleating seed, an ice-nucleating particle (INP), to facilitate its first emergence. Unfortunately, only a few long-term measurements of INPs exist, and as a result, knowledge about geographic and seasonal variations of INP concentrations is sparse. Here we present data from nearly 2 years of INP measurements from four stations in different regions of the world: the Amazon (Brazil), the Caribbean (Martinique), central Europe (Germany) and the Arctic (Svalbard). The sites feature diverse geographical climates and ecosystems that are associated with dissimilar transport patterns, aerosol characteristics and levels of anthropogenic impact (ranging from near pristine to mostly rural). Interestingly, observed INP concentrations, which represent measurements in the deposition and condensation freezing modes, do not differ greatly from site to site but usually fall well within the same order of magnitude. Moreover, short-term variability overwhelms all long-term trends and/or seasonality in the INP concentration at all locations. An analysis of the frequency distributions of INP concentrations suggests that INPs tend to be well mixed and reflective of large-scale air mass movements. No universal physical or chemical parameter could be identified to be a causal link driving INP climatology, highlighting the complex nature of the ice nucleation process. Amazonian INP concentrations were mostly unaffected by the biomass burning season, even though aerosol concentrations increase by a factor of 10 from the wet to dry season. Caribbean INPs were positively correlated to parameters related to transported mineral dust, which is known to increase during the Northern Hemisphere summer. A wind sector analysis revealed the absence of an anthropogenic impact on average INP ... Article in Journal/Newspaper Arctic Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Atmospheric Chemistry and Physics 20 24 15983 16006 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 J. Schrod E. S. Thomson D. Weber J. Kossmann C. Pöhlker J. Saturno F. Ditas P. Artaxo V. Clouard J.-M. Saurel M. Ebert J. Curtius H. G. Bingemer Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Ice particle activation and evolution have important atmospheric implications for cloud formation, initiation of precipitation and radiative interactions. The initial formation of atmospheric ice by heterogeneous ice nucleation requires the presence of a nucleating seed, an ice-nucleating particle (INP), to facilitate its first emergence. Unfortunately, only a few long-term measurements of INPs exist, and as a result, knowledge about geographic and seasonal variations of INP concentrations is sparse. Here we present data from nearly 2 years of INP measurements from four stations in different regions of the world: the Amazon (Brazil), the Caribbean (Martinique), central Europe (Germany) and the Arctic (Svalbard). The sites feature diverse geographical climates and ecosystems that are associated with dissimilar transport patterns, aerosol characteristics and levels of anthropogenic impact (ranging from near pristine to mostly rural). Interestingly, observed INP concentrations, which represent measurements in the deposition and condensation freezing modes, do not differ greatly from site to site but usually fall well within the same order of magnitude. Moreover, short-term variability overwhelms all long-term trends and/or seasonality in the INP concentration at all locations. An analysis of the frequency distributions of INP concentrations suggests that INPs tend to be well mixed and reflective of large-scale air mass movements. No universal physical or chemical parameter could be identified to be a causal link driving INP climatology, highlighting the complex nature of the ice nucleation process. Amazonian INP concentrations were mostly unaffected by the biomass burning season, even though aerosol concentrations increase by a factor of 10 from the wet to dry season. Caribbean INPs were positively correlated to parameters related to transported mineral dust, which is known to increase during the Northern Hemisphere summer. A wind sector analysis revealed the absence of an anthropogenic impact on average INP ... |
format |
Article in Journal/Newspaper |
author |
J. Schrod E. S. Thomson D. Weber J. Kossmann C. Pöhlker J. Saturno F. Ditas P. Artaxo V. Clouard J.-M. Saurel M. Ebert J. Curtius H. G. Bingemer |
author_facet |
J. Schrod E. S. Thomson D. Weber J. Kossmann C. Pöhlker J. Saturno F. Ditas P. Artaxo V. Clouard J.-M. Saurel M. Ebert J. Curtius H. G. Bingemer |
author_sort |
J. Schrod |
title |
Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe |
title_short |
Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe |
title_full |
Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe |
title_fullStr |
Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe |
title_full_unstemmed |
Long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe |
title_sort |
long-term deposition and condensation ice-nucleating particle measurements from four stations across the globe |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/acp-20-15983-2020 https://doaj.org/article/56631ceaefbe4073ab09f8d2170d3b2a |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Svalbard |
genre_facet |
Arctic Svalbard |
op_source |
Atmospheric Chemistry and Physics, Vol 20, Pp 15983-16006 (2020) |
op_relation |
https://acp.copernicus.org/articles/20/15983/2020/acp-20-15983-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-15983-2020 1680-7316 1680-7324 https://doaj.org/article/56631ceaefbe4073ab09f8d2170d3b2a |
op_doi |
https://doi.org/10.5194/acp-20-15983-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
24 |
container_start_page |
15983 |
op_container_end_page |
16006 |
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1766344782074871808 |