Direct Radiative Effect by Mineral Dust Aerosols Constrained by New Microphysical and Spectral Optical Data

doi:10.1029/2019GL086186

GSTDTAP > 气候变化

DOI	10.1029/2019GL086186
	Direct Radiative Effect by Mineral Dust Aerosols Constrained by New Microphysical and Spectral Optical Data
	Di Biagio, C.1; Balkanski, Y.2; Albani, S.2,3; Boucher, O.4; Formenti, P.1
	2020-01-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2020
卷号	47 期号:2
文章类型	Article
语种	英语
国家	France; Italy
英文摘要	We revise the direct radiative effect (DRE) of mineral dust aerosols in the shortwave (SW) and longwave (LW) based on global model simulations that include coarse dust particles (>20 mu m) and a new LW complex refractive index data set representative of major global sources. Simulations are constrained against observed dust size distributions and optical depth. Scattering of LW radiation is accounted for in the analysis. The extension of the dust size beyond 20 mu m causes a reduction in the SW DRE compared to current model estimates, while the LW DRE remains within published values due to compensating effects between changing size distribution, complex refractive index, and accounting for dust scattering. The dust direct radiative effect efficiency from model simulations reproduces well field observations close to sources and after transport. The global mean net effect of dust is -0.03 Wm(-2) as a result of cooling over oceans and warming over land.
英文关键词	mineral dust aerosols direct radiative effect coarse size particles complex refractive index longwave scattering
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000517154600016
WOS关键词	SAHARAN DUST ; SIZE DISTRIBUTION ; REFRACTIVE-INDEX ; ATMOSPHERIC TRANSPORT ; PARTICLE-SIZE ; MIXING STATE ; COARSE-MODE ; IMPACT ; VARIABILITY ; SATELLITE
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/279561
专题	气候变化
作者单位	1.Univ Paris, Univ Paris Est Creteil, CNRS, LISA,UMR 7583,IPSL, Creteil, France; 2.UP Saclay, UVSQ, CNRS, CEA,Lab Sci Climat & Environm, Gif Sur Yvette, France; 3.Univ Milano Bicocca, Dept Environm & Earth Sci, Milan, Italy; 4.Sorbonne Univ, CNRS, Inst Pierre Simon Laplace, Paris, France
推荐引用方式 GB/T 7714	Di Biagio, C.,Balkanski, Y.,Albani, S.,et al. Direct Radiative Effect by Mineral Dust Aerosols Constrained by New Microphysical and Spectral Optical Data[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(2).
APA	Di Biagio, C.,Balkanski, Y.,Albani, S.,Boucher, O.,&Formenti, P..(2020).Direct Radiative Effect by Mineral Dust Aerosols Constrained by New Microphysical and Spectral Optical Data.GEOPHYSICAL RESEARCH LETTERS,47(2).
MLA	Di Biagio, C.,et al."Direct Radiative Effect by Mineral Dust Aerosols Constrained by New Microphysical and Spectral Optical Data".GEOPHYSICAL RESEARCH LETTERS 47.2(2020).