Decreased dust particles amplify the cloud cooling effect by regulating cloud ice formation over the Tibetan Plateau

IF 11.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2024-09-13 DOI:10.1126/sciadv.ado0885

Jingchuan Chen, Jianzhong Xu, Zhijun Wu, Xiangxinyue Meng, Yan Yu, Paul Ginoux, Paul J. DeMott, Rui Xu, Lixiang Zhai, Yafei Yan, Chuanfeng Zhao, Shao-Meng Li, Tong Zhu, Min Hu

{"title":"Decreased dust particles amplify the cloud cooling effect by regulating cloud ice formation over the Tibetan Plateau","authors":"Jingchuan Chen, Jianzhong Xu, Zhijun Wu, Xiangxinyue Meng, Yan Yu, Paul Ginoux, Paul J. DeMott, Rui Xu, Lixiang Zhai, Yafei Yan, Chuanfeng Zhao, Shao-Meng Li, Tong Zhu, Min Hu","doi":"10.1126/sciadv.ado0885","DOIUrl":null,"url":null,"abstract":"<div >Ice-nucleating particles (INPs) can initiate cloud ice formation, influencing cloud radiative effects (CRE) and climate. However, the knowledge of INP sources, concentrations, and their impact on CRE over the Tibetan Plateau (TP)—a highly climate-sensitive region—remains largely hypothetical. Here, we integrated data from multisource satellite observations and snowpack samples collected from five glaciers to demonstrate that dust particles constitute primary INP sources over the TP. The springtime dust influxes lead to seasonally elevated ice concentrations in mixed-phase clouds. Furthermore, the decadal reduction in dustiness from 2007 to 2019 results in decreased springtime dust INPs, thereby amplifying the cooling effect of clouds over the TP, with a 1.98 ± 0.39–watt per square meter reduction in surface net CRE corresponding to a 0.01 decrease in dust optical depth. Our findings elucidate previously unidentified pathways of climate feedback from an atmospheric INP perspective, especially highlighting the crucial role of dust in aerosol-cloud interactions.</div>","PeriodicalId":21609,"journal":{"name":"Science Advances","volume":null,"pages":null},"PeriodicalIF":11.7000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.science.org/doi/reader/10.1126/sciadv.ado0885","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science Advances","FirstCategoryId":"103","ListUrlMain":"https://www.science.org/doi/10.1126/sciadv.ado0885","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Ice-nucleating particles (INPs) can initiate cloud ice formation, influencing cloud radiative effects (CRE) and climate. However, the knowledge of INP sources, concentrations, and their impact on CRE over the Tibetan Plateau (TP)—a highly climate-sensitive region—remains largely hypothetical. Here, we integrated data from multisource satellite observations and snowpack samples collected from five glaciers to demonstrate that dust particles constitute primary INP sources over the TP. The springtime dust influxes lead to seasonally elevated ice concentrations in mixed-phase clouds. Furthermore, the decadal reduction in dustiness from 2007 to 2019 results in decreased springtime dust INPs, thereby amplifying the cooling effect of clouds over the TP, with a 1.98 ± 0.39–watt per square meter reduction in surface net CRE corresponding to a 0.01 decrease in dust optical depth. Our findings elucidate previously unidentified pathways of climate feedback from an atmospheric INP perspective, especially highlighting the crucial role of dust in aerosol-cloud interactions.

Abstract Image

查看原文本刊更多论文

减少的尘埃粒子通过调节青藏高原上空云冰的形成放大了云冷却效应

冰核粒子（INPs）可以引发云冰的形成，从而影响云的辐射效应（CRE）和气候。然而，关于青藏高原（TP）--一个对气候高度敏感的地区--的 INP 来源、浓度及其对云辐射效应的影响的知识在很大程度上仍然是假设性的。在这里，我们整合了多源卫星观测数据和从五座冰川采集的积雪样本，证明尘埃粒子是青藏高原的主要 INP 来源。春季沙尘涌入导致混合相云中的冰浓度季节性升高。此外，从2007年到2019年，尘埃度的十年减少导致春季尘埃INP减少，从而放大了TP上空云层的冷却效应，尘埃光学深度每减少0.01瓦，地表净CRE就会减少1.98±0.39瓦。我们的研究结果从大气 INP 的角度阐明了以前未发现的气候反馈途径，特别强调了尘埃在气溶胶-云相互作用中的关键作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.

文献相关原料

公司名称	产品信息	采购帮参考价格