Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0742.1 |
Paleodust Insights into Dust Impacts on Climate | |
Albani, Samuel1; Mahowald, Natalie M.2 | |
2019-11-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:22页码:7897-7913 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; USA |
英文摘要 | Mineral dust acts both as a tracer and a forcing agent of climate change. Past dust variability, imprinted in paleodust records from natural archives, offers the unique opportunity to reconstruct the global dust cycle within a range of possibilities that plausibly encompass future variations in response to climate change and land-cover and land-use changes. Dust itself has direct and indirect feedbacks on the climate system, through impacts on the atmosphere radiative budget and the carbon cycle. Starting from well-constrained reconstructions of the present and past dust cycle, we focus on quantifying dust direct impacts on the atmospheric radiation. We discuss the intrinsic effects of dust onto climate, and how changes in the global dust budget and surface conditions modulate the effective impacts on surface temperatures and precipitation. Most notably, the presence of dust tends to enhance the West African monsoon and warm the Arctic. We also highlight how different choices in terms of dust optical properties and size distributions may yield opposite results, and what are the observational constraints we can use to make an informed choice of model parameters. Finally, we discuss how dust variability might have influenced ongoing climate transitions in the past. In particular we found that a reduction in dust load, along with a reduced cryosphere cover, acted to offset Arctic warming during the deglaciation, potentially playing a role in shaping the Northern Hemisphere deglacial dynamics. |
英文关键词 | Atmosphere Aerosols Paleoclimate Surface temperature Coupled models Aerosol radiative effect |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000492191600002 |
WOS关键词 | LAST GLACIAL MAXIMUM ; WEST-AFRICAN MONSOON ; SAHARAN DUST ; MINERAL-DUST ; RADIATIVE PROPERTIES ; EXPERIMENTAL-DESIGN ; PMIP4 CONTRIBUTION ; DESERT DUST ; SURFACE-TEMPERATURE ; OPTICAL-PROPERTIES |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/188125 |
专题 | 气候变化 |
作者单位 | 1.Univ Milano Bicocca, Dept Environm & Earth Sci, Milan, Italy; 2.Cornell Univ, Dept Earth & Atmospher Sci, Ithaca, NY 14850 USA |
推荐引用方式 GB/T 7714 | Albani, Samuel,Mahowald, Natalie M.. Paleodust Insights into Dust Impacts on Climate[J]. JOURNAL OF CLIMATE,2019,32(22):7897-7913. |
APA | Albani, Samuel,&Mahowald, Natalie M..(2019).Paleodust Insights into Dust Impacts on Climate.JOURNAL OF CLIMATE,32(22),7897-7913. |
MLA | Albani, Samuel,et al."Paleodust Insights into Dust Impacts on Climate".JOURNAL OF CLIMATE 32.22(2019):7897-7913. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论