{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T15:27:46Z","timestamp":1772119666339,"version":"3.50.1"},"reference-count":72,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T00:00:00Z","timestamp":1697500800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Science Foundation of China","doi-asserted-by":"publisher","award":["42230604"],"award-info":[{"award-number":["42230604"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Science Foundation of China","doi-asserted-by":"publisher","award":["41590873"],"award-info":[{"award-number":["41590873"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Science Foundation of China","doi-asserted-by":"publisher","award":["KYCX21_0953"],"award-info":[{"award-number":["KYCX21_0953"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Science Foundation of China","doi-asserted-by":"publisher","award":["KYCX21_0955"],"award-info":[{"award-number":["KYCX21_0955"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Postgraduate Research &amp; Practice Innovation Program of Jiangsu Province","award":["42230604"],"award-info":[{"award-number":["42230604"]}]},{"name":"Postgraduate Research &amp; Practice Innovation Program of Jiangsu Province","award":["41590873"],"award-info":[{"award-number":["41590873"]}]},{"name":"Postgraduate Research &amp; Practice Innovation Program of Jiangsu Province","award":["KYCX21_0953"],"award-info":[{"award-number":["KYCX21_0953"]}]},{"name":"Postgraduate Research &amp; Practice Innovation Program of Jiangsu Province","award":["KYCX21_0955"],"award-info":[{"award-number":["KYCX21_0955"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Ice-nucleating particles (INPs) are crucial for cloud freezing processes in the atmosphere. Given the limited knowledge about the vertical distribution of INPs and its relation to aerosols in China, we present two aircraft observations of INPs over the North China Plain on 23 October 2019 and 25 October 2019, before and after a cold front passage. We used a well-established method to identify the INPs on a silicon wafer and then performed single-particle chemical composition analysis using an environmental scanning electron microscope-energy dispersive spectrometer (ESEM-EDS). The INP concentrations range from 0.1 to 9.2 L\u22121 within activation temperatures from \u221220 to \u221229 \u00b0C. INPs are mostly concentrated within the boundary layer, and their concentration shows a decreasing trend with height (0.5~6 km) before the cold front passage. However, the highest INP concentration always appears at higher altitudes (4~5 km) after the cold front passage. The cold front passage also significantly weakens the correlations between the concentrations of INPs and aerosol particles at different sizes. The activated fraction (AF) of total aerosols increases from 10\u22126 to 10\u22124 with height from near ground to 6 km, reflecting a better nucleating capacity of the aerosols at higher altitudes. There is no obvious variation in AF after the cold front passage. Chemical analysis reveals that the INPs containing mineral dust components comprise the majority of total INPs during both flights. The proportion of pure mineral dust declines from 52.2% to 43.5% after the cold front passage while the proportion of mixed mineral dust increases from 23.9% to 45.7%, suggesting that an increased probability of aging or coating of INPs is introduced by the cold front during their long-distance transport. In addition, 88% of INPs have a diameter larger than 1 \u03bcm. This indicates that larger aerosols (&gt;1 \u03bcm) are the major contributors to INPs at high altitudes despite their relatively low abundance. Our results demonstrate a significant impact of transport events on the sources and vertical distribution of INPs in the atmosphere.<\/jats:p>","DOI":"10.3390\/rs15204989","type":"journal-article","created":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T08:10:19Z","timestamp":1697530219000},"page":"4989","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["The Vertical Distribution of Ice-Nucleating Particles over the North China Plain: A Case of Cold Front Passage"],"prefix":"10.3390","volume":"15","author":[{"given":"Chuan","family":"He","sequence":"first","affiliation":[{"name":"Key Laboratory for Aerosol\u2014Cloud\u2014Precipitation of the China Meteorological Administration, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8391-2712","authenticated-orcid":false,"given":"Yan","family":"Yin","sequence":"additional","affiliation":[{"name":"Key Laboratory for Aerosol\u2014Cloud\u2014Precipitation of the China Meteorological Administration, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China"}]},{"given":"Yi","family":"Huang","sequence":"additional","affiliation":[{"name":"Weather Modification Office of Hebei Province, Shijiazhuang 051430, China"}]},{"given":"Xiang","family":"Kuang","sequence":"additional","affiliation":[{"name":"Key Laboratory for Aerosol\u2014Cloud\u2014Precipitation of the China Meteorological Administration, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China"}]},{"given":"Yi","family":"Cui","sequence":"additional","affiliation":[{"name":"Weather Modification Office of Hebei Province, Shijiazhuang 051430, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4092-297X","authenticated-orcid":false,"given":"Kui","family":"Chen","sequence":"additional","affiliation":[{"name":"Key Laboratory for Aerosol\u2014Cloud\u2014Precipitation of the China Meteorological Administration, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China"}]},{"given":"Hui","family":"Jiang","sequence":"additional","affiliation":[{"name":"Key Laboratory for Aerosol\u2014Cloud\u2014Precipitation of the China Meteorological Administration, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0136-2428","authenticated-orcid":false,"given":"Alexei","family":"Kiselev","sequence":"additional","affiliation":[{"name":"Institute of Meteorology and Climate Research, Department of Atmospheric Aerosol Research, Karlsruhe Institute of Technology, Hermann Von Helmholtz\u2013Platz 1, 76344 Eggenstein-Leopoldshafen, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7551-9814","authenticated-orcid":false,"given":"Ottmar","family":"M\u00f6hler","sequence":"additional","affiliation":[{"name":"Institute of Meteorology and Climate Research, Department of Atmospheric Aerosol Research, Karlsruhe Institute of Technology, Hermann Von Helmholtz\u2013Platz 1, 76344 Eggenstein-Leopoldshafen, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0671-3469","authenticated-orcid":false,"given":"Jann","family":"Schrod","sequence":"additional","affiliation":[{"name":"Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany"}]}],"member":"1968","published-online":{"date-parts":[[2023,10,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"10263","DOI":"10.5194\/acp-15-10263-2015","article-title":"Technical Note: A proposal for ice nucleation terminology","volume":"15","author":"Vali","year":"2015","journal-title":"Atmos. 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