Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-017-0020-5 |
Substantial large-scale feedbacks between natural aerosols and climate | |
Scott, C. E.1; Arnold, S. R.1; Monks, S. A.2,3; Asmi, A.4; Paasonen, P.4,5; Spracklen, D. V.1 | |
2018 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2018 |
卷号 | 11期号:1页码:44-+ |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA; Finland; Austria |
英文摘要 | The terrestrial biosphere is an important source of natural aerosol. Natural aerosol sources alter climate, but are also strongly controlled by climate, leading to the potential for natural aerosol-climate feedbacks. Here we use a global aerosol model to make an assessment of terrestrial natural aerosol-climate feedbacks, constrained by observations of aerosol number. We find that warmer-than-average temperatures are associated with higher-than-average number concentrations of large (>100 nm diameter) particles, particularly during the summer. This relationship is well reproduced by the model and is driven by both meteorological variability and variability in natural aerosol from biogenic and landscape fire sources. We find that the calculated extratropical annual mean aerosol radiative effect (both direct and indirect) is negatively related to the observed global temperature anomaly, and is driven by a positive relationship between temperature and the emission of natural aerosol. The extratropical aerosol-climate feedback is estimated to be -0.14 W m(-2) K-1 for landscape fire aerosol, greater than the -0.03 W m(-2) K-1 estimated for biogenic secondary organic aerosol. These feedbacks are comparable in magnitude to other biogeochemical feedbacks, highlighting the need for natural aerosol feedbacks to be included in climate simulations. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423842000017 |
WOS关键词 | SECONDARY ORGANIC AEROSOL ; TRACE GASES ; RAIN-FOREST ; EMISSIONS ; MODEL ; EARTH ; VARIABILITY ; CLOUDS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/34843 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Leeds, Sch Earth & Environm, Inst Climate & Atmospher Sci, Leeds, W Yorkshire, England; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 3.NOAA, Chem Sci Div, Earth Syst Res Lab, Boulder, CO USA; 4.Univ Helsinki, Dept Phys, Helsinki, Finland; 5.Int Inst Appl Syst Anal, Laxenburg, Austria |
推荐引用方式 GB/T 7714 | Scott, C. E.,Arnold, S. R.,Monks, S. A.,et al. Substantial large-scale feedbacks between natural aerosols and climate[J]. NATURE GEOSCIENCE,2018,11(1):44-+. |
APA | Scott, C. E.,Arnold, S. R.,Monks, S. A.,Asmi, A.,Paasonen, P.,&Spracklen, D. V..(2018).Substantial large-scale feedbacks between natural aerosols and climate.NATURE GEOSCIENCE,11(1),44-+. |
MLA | Scott, C. E.,et al."Substantial large-scale feedbacks between natural aerosols and climate".NATURE GEOSCIENCE 11.1(2018):44-+. |
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