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DOI | 10.1073/pnas.1721627115 |
Strong control of Southern Ocean cloud reflectivity by ice-nucleating particles | |
Vergara-Temprado, Jesus1; Miltenberger, Annette K.1; Furtado, Kalli2; Grosvenor, Daniel P.1,2,3; Shipway, Ben J.2; Hill, Adrian A.2; Wilkinson, Jonathan M.2; Field, Paul R.1,2; Murray, Benjamin J.1; Carslaw, Ken S.1 | |
2018-03-13 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:11页码:2687-2692 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Large biases in climate model simulations of cloud radiative properties over the Southern Ocean cause large errors in modeled sea surface temperatures, atmospheric circulation, and climate sensitivity. Here, we combine cloud-resolving model simulations with estimates of the concentration of ice-nucleating particles in this region to show that our simulated Southern Ocean clouds reflect far more radiation than predicted by global models, in agreement with satellite observations. Specifically, we show that the clouds that are most sensitive to the concentration of ice-nucleating particles are low-level mixed-phase clouds in the cold sectors of extra-tropical cyclones, which have previously been identified as a main contributor to the Southern Ocean radiation bias. The very low ice-nucleating particle concentrations that prevail over the Southern Ocean strongly suppress cloud droplet freezing, reduce precipitation, and enhance cloud reflectivity. The results help explain why a strong radiation bias occurs mainly in this remote region away from major sources of ice-nucleating particles. The results present a substantial challenge to climate models to be able to simulate realistic ice-nucleating particle concentrations and their effects under specific meteorological conditions. |
英文关键词 | ice nucleation clouds Southern Ocean mixed-phase microphysics |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427245400053 |
WOS关键词 | MIXED-PHASE CLOUD ; SUPERCOOLED LIQUID CLOUDS ; AIRCRAFT OBSERVATIONS ; MINERAL DUST ; MODEL ; PARAMETERIZATION ; AEROSOL ; NUCLEI ; BIASES ; WATER |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204879 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Leeds, Sch Earth & Environm, Inst Climate & Atmospher Sci, Leeds LS2 9JT, W Yorkshire, England; 2.Met Off, Exeter EX1 3PB, Devon, England; 3.Univ Leeds, NCAS, Leeds LS2 9JT, W Yorkshire, England |
推荐引用方式 GB/T 7714 | Vergara-Temprado, Jesus,Miltenberger, Annette K.,Furtado, Kalli,et al. Strong control of Southern Ocean cloud reflectivity by ice-nucleating particles[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(11):2687-2692. |
APA | Vergara-Temprado, Jesus.,Miltenberger, Annette K..,Furtado, Kalli.,Grosvenor, Daniel P..,Shipway, Ben J..,...&Carslaw, Ken S..(2018).Strong control of Southern Ocean cloud reflectivity by ice-nucleating particles.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(11),2687-2692. |
MLA | Vergara-Temprado, Jesus,et al."Strong control of Southern Ocean cloud reflectivity by ice-nucleating particles".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.11(2018):2687-2692. |
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