Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaign
<p>A large fraction of annual precipitation over the western United States comes from wintertime orographic clouds associated with atmospheric rivers (ARs). Transported African and Asian dust and marine aerosols from the Pacific Ocean may act as ice-nucleating particles (INPs) to affect cloud...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2022-05-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/22/6749/2022/acp-22-6749-2022.pdf |
| _version_ | 1818551745301708800 |
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| author | Y. Lin Y. Lin J. Fan P. Li P. Li L.-R. Leung P. J. DeMott L. Goldberger J. Comstock Y. Liu J.-H. Jeong J.-H. Jeong J. Tomlinson |
| author_facet | Y. Lin Y. Lin J. Fan P. Li P. Li L.-R. Leung P. J. DeMott L. Goldberger J. Comstock Y. Liu J.-H. Jeong J.-H. Jeong J. Tomlinson |
| author_sort | Y. Lin |
| collection | DOAJ |
| description | <p>A large fraction of annual precipitation over the western United States
comes from wintertime orographic clouds associated with atmospheric rivers
(ARs). Transported African and Asian dust and marine aerosols from the
Pacific Ocean may act as ice-nucleating particles (INPs) to affect cloud and
precipitation properties over the region. Here we explored the effects of
INPs from marine aerosols on orographic mixed-phase clouds and precipitation
at different AR stages for an AR event observed during the 2015 ACAPEX field
campaign under low dust (<span class="inline-formula"><i><</i>0.02</span> cm<span class="inline-formula"><sup>−3</sup></span>) conditions. Simulations
were conducted using the chemistry version of the Weather Research and
Forecasting Model coupled with the spectral-bin microphysics at 1 km grid
spacing, with ice nucleation connected with dust and marine aerosols. By
comparing against airborne and ground-based observations, accounting for
marine INP effects improves the simulation of AR-precipitation. The marine
INPs enhance the formation of ice and snow, leading to less shallow warm
clouds but more mixed-phase and deep clouds, as well as to a large spillover
effect of precipitation after AR landfall. The responses of cloud and
precipitation to marine INPs vary with the AR stages, with more significant
effects before AR landfall and post-AR than after AR landfall, mainly
because the moisture and temperature conditions change with the AR
evolution. This work suggests weather and climate models need to consider
the impacts of marine INPs since their contribution is notable under low
dust conditions despite the much lower relative ice nucleation efficiency of
marine INPs.</p> |
| first_indexed | 2024-12-12T09:03:59Z |
| format | Article |
| id | doaj.art-a9fdc1e05b744c69a075b4c6ef6eac45 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-12T09:03:59Z |
| publishDate | 2022-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-a9fdc1e05b744c69a075b4c6ef6eac452022-12-22T00:29:43ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242022-05-01226749677110.5194/acp-22-6749-2022Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaignY. Lin0Y. Lin1J. Fan2P. Li3P. Li4L.-R. Leung5P. J. DeMott6L. Goldberger7J. Comstock8Y. Liu9J.-H. Jeong10J.-H. Jeong11J. Tomlinson12Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USAJoint Institute for Regional Earth System Science and Engineering (JIFRESSE), University of California, Los Angeles (UCLA), Los Angeles, CA, 90064, USAAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USACollege of Science and Technology, Hebei Agricultural University, Baoding, Hebei, 14 071000, PR ChinaResearch Center for Air Pollution and Health, Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environment and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR ChinaAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USADepartment of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USAAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USAAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USAAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USAAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USAJoint Institute for Regional Earth System Science and Engineering (JIFRESSE), University of California, Los Angeles (UCLA), Los Angeles, CA, 90064, USAAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USA<p>A large fraction of annual precipitation over the western United States comes from wintertime orographic clouds associated with atmospheric rivers (ARs). Transported African and Asian dust and marine aerosols from the Pacific Ocean may act as ice-nucleating particles (INPs) to affect cloud and precipitation properties over the region. Here we explored the effects of INPs from marine aerosols on orographic mixed-phase clouds and precipitation at different AR stages for an AR event observed during the 2015 ACAPEX field campaign under low dust (<span class="inline-formula"><i><</i>0.02</span> cm<span class="inline-formula"><sup>−3</sup></span>) conditions. Simulations were conducted using the chemistry version of the Weather Research and Forecasting Model coupled with the spectral-bin microphysics at 1 km grid spacing, with ice nucleation connected with dust and marine aerosols. By comparing against airborne and ground-based observations, accounting for marine INP effects improves the simulation of AR-precipitation. The marine INPs enhance the formation of ice and snow, leading to less shallow warm clouds but more mixed-phase and deep clouds, as well as to a large spillover effect of precipitation after AR landfall. The responses of cloud and precipitation to marine INPs vary with the AR stages, with more significant effects before AR landfall and post-AR than after AR landfall, mainly because the moisture and temperature conditions change with the AR evolution. This work suggests weather and climate models need to consider the impacts of marine INPs since their contribution is notable under low dust conditions despite the much lower relative ice nucleation efficiency of marine INPs.</p>https://acp.copernicus.org/articles/22/6749/2022/acp-22-6749-2022.pdf |
| spellingShingle | Y. Lin Y. Lin J. Fan P. Li P. Li L.-R. Leung P. J. DeMott L. Goldberger J. Comstock Y. Liu J.-H. Jeong J.-H. Jeong J. Tomlinson Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaign Atmospheric Chemistry and Physics |
| title | Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaign |
| title_full | Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaign |
| title_fullStr | Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaign |
| title_full_unstemmed | Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaign |
| title_short | Modeling impacts of ice-nucleating particles from marine aerosols on mixed-phase orographic clouds during 2015 ACAPEX field campaign |
| title_sort | modeling impacts of ice nucleating particles from marine aerosols on mixed phase orographic clouds during 2015 acapex field campaign |
| url | https://acp.copernicus.org/articles/22/6749/2022/acp-22-6749-2022.pdf |
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