干旱区生态环境知识资源中心(Arid): Impact of dust in PMIP-CMIP6 mid-Holocene simulations with the IPSL model

Arid

DOI	10.5194/cp-17-1091-2021
	Impact of dust in PMIP-CMIP6 mid-Holocene simulations with the IPSL model
	Braconnot, Pascale; Albani, Samuel; Balkanski, Yves; Cozic, Anne; Kageyama, Masa; Sima, Adriana; Marti, Olivier; Peterschmitt, Jean-Yves
通讯作者	Braconnot, P (corresponding author), Univ Paris Saclay, CNRS, UVSQ, LSCE,IPSL,Unite Mixte CEA,Orme Merisiers, Bat 714, F-91191 Gif Sur Yvette, France.
来源期刊	CLIMATE OF THE PAST
ISSN	1814-9324
EISSN	1814-9332
出版年	2021
卷号	17 期号:3 页码:1091-1117
英文摘要	We investigate the climate impact of reduced dust during the mid-Holocene using simulations with the IPSL model. We consider simulations where dust is either prescribed from an IPSL PI simulation or from CESM simulations (Albani et al., 2015). In addition, we also consider an extreme mid-Holocene case where dust is suppressed. We focus on the estimation of the dust radiative effects and the relative responses of the African and Indian monsoon, showing how local dust forcing or orography affect atmospheric temperature profiles, humidity and precipitation. The simulated mid-Holocene climate is statistically different in many regions compared to previous mid-Holocene simulations with the IPSL models. However, it translates to only minor improvements compared to palaeoclimate reconstructions, and the effect of dust has little impact on mid-Holocene model skill over large regions. Our analyses confirm the peculiar role of dust radiative effect over bright surfaces such as African deserts compared to other regions, brought about by the change of sign of the dust radiative effect at the top of atmosphere for high surface albedo. We also highlight a strong dependence of results on the dust pattern. In particular, the relative dust forcing between West Africa and the Middle East impacts the relative climate response between India and Africa and between Africa, the western tropical Atlantic and the Atlantic meridional circulation. It also affects the feedback on the Atlantic Ocean thermohaline circulation. Dust patterns should thus be better constrained to fully understand the changes in the dust cycle and forcing during the mid-Holocene, which also informs on the potential changes in key dust feedbacks in the future.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000657140700001
WOS关键词	LAST GLACIAL MAXIMUM ; SAHARAN DUST ; AFRICAN MONSOON ; WATER CYCLE ; SATELLITE ; DEPOSITION ; INSOLATION ; ATLANTIC ; SENSITIVITY ; VEGETATION
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349860
作者单位	[Braconnot, Pascale; Albani, Samuel; Balkanski, Yves; Cozic, Anne; Kageyama, Masa; Marti, Olivier; Peterschmitt, Jean-Yves] Univ Paris Saclay, CNRS, UVSQ, LSCE,IPSL,Unite Mixte CEA,Orme Merisiers, Bat 714, F-91191 Gif Sur Yvette, France; [Albani, Samuel] Univ Milano Bicocca, Dept Environm & Earth Sci, Milan, Italy; [Sima, Adriana] PSL Univ, Sorbonne Univ, Inst Polytech Paris, CNRS,LMD,IPSL,ENS,Ecole Polytech, Paris, France
推荐引用方式 GB/T 7714	Braconnot, Pascale,Albani, Samuel,Balkanski, Yves,et al. Impact of dust in PMIP-CMIP6 mid-Holocene simulations with the IPSL model[J],2021,17(3):1091-1117.
APA	Braconnot, Pascale.,Albani, Samuel.,Balkanski, Yves.,Cozic, Anne.,Kageyama, Masa.,...&Peterschmitt, Jean-Yves.(2021).Impact of dust in PMIP-CMIP6 mid-Holocene simulations with the IPSL model.CLIMATE OF THE PAST,17(3),1091-1117.
MLA	Braconnot, Pascale,et al."Impact of dust in PMIP-CMIP6 mid-Holocene simulations with the IPSL model".CLIMATE OF THE PAST 17.3(2021):1091-1117.