气候变化领域集成服务门户(CCPortal): An overview of the ORACLES (ObseRvations of aerosols above CLouds and their intEractionS) project: Aerosol-cloud-radiation interactions in the southeast Atlantic basin

CCPortal

DOI	10.5194/acp-21-1507-2021
	An overview of the ORACLES (ObseRvations of aerosols above CLouds and their intEractionS) project: Aerosol-cloud-radiation interactions in the southeast Atlantic basin
	Redemann J.; Wood R.; Zuidema P.; Doherty S.J.; Luna B.; LeBlanc S.E.; Diamond M.S.; Shinozuka Y.; Chang I.Y.; Ueyama R.; Pfister L.; Ryoo J.-M.; Dobracki A.N.; da Silva A.M.; Longo K.M.; Kacenelenbogen M.S.; Flynn C.J.; Pistone K.; Knox N.M.; Piketh S.J.; Haywood J.M.; Formenti P.; Mallet M.; Stier P.; Ackerman A.S.; Bauer S.E.; Fridlind A.M.; Carmichael G.R.; Saide P.E.; Ferrada G.A.; Howell S.G.; Freitag S.; Cairns B.; Holben B.N.; Knobelspiesse K.D.; Tanelli S.; L'Ecuyer T.S.; Dzambo A.M.; Sy O.O.; McFarquhar G.M.; Poellot M.R.; Gupta S.; O'Brien J.R.; Nenes A.; Kacarab M.; Wong J.P.S.; Small-Griswold J.D.; Thornhill K.L.; Noone D.; Podolske J.R.; Sebastian Schmidt K.; Pilewskie P.; Chen H.; Cochrane S.P.; Sedlacek A.J.; Lang T.J.; Stith E.; Segal-Rozenhaimer M.; Ferrare R.A.; Burton S.P.; Hostetler C.A.; Diner D.J.; Seidel F.C.; Platnick S.E.; Myers J.S.; Meyer K.G.; Spangenberg D.A.; Maring H.; Gao L.
发表日期	2021
ISSN	1680-7316
起始页码	1507
结束页码	1563
卷号	21 期号:3
英文摘要	Southern Africa produces almost a third of the Earth's biomass burning (BB) aerosol particles, yet the fate of these particles and their influence on regional and global climate is poorly understood. ORACLES (ObseRvations of Aerosols above CLouds and their intEractionS) is a 5-year NASA EVS-2 (Earth Venture Suborbital-2) investigation with three intensive observation periods designed to study key atmospheric processes that determine the climate impacts of these aerosols. During the Southern Hemisphere winter and spring (June-October), aerosol particles reaching 3-5 km in altitude are transported westward over the southeast Atlantic, where they interact with one of the largest subtropical stratocumulus (Sc) cloud decks in the world. The representation of these interactions in climate models remains highly uncertain in part due to a scarcity of observational constraints on aerosol and cloud properties, as well as due to the parameterized treatment of physical processes. Three ORACLES deployments by the NASA P-3 aircraft in September 2016, August 2017, and October 2018 (totaling ∼ 350 science flight hours), augmented by the deployment of the NASA ER-2 aircraft for remote sensing in September 2016 (totaling ∼ 100 science flight hours), were intended to help fill this observational gap. ORACLES focuses on three fundamental science themes centered on the climate effects of African BB aerosols: (a) direct aerosol radiative effects, (b) effects of aerosol absorption on atmospheric circulation and clouds, and (c) aerosol-cloud microphysical interactions. This paper summarizes the ORACLES science objectives, describes the project implementation, provides an overview of the flights and measurements in each deployment, and highlights the integrative modeling efforts from cloud to global scales to address science objectives. Significant new findings on the vertical structure of BB aerosol physical and chemical properties, chemical aging, cloud condensation nuclei, rain and precipitation statistics, and aerosol indirect effects are emphasized, but their detailed descriptions are the subject of separate publications. The main purpose of this paper is to familiarize the broader scientific community with the ORACLES project and the dataset it produced. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168789
作者单位	School of Meteorology, University of Oklahoma, Norman, OK, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Department of Atmospheric Sciences, University of Miami, Miami, FL, United States; NASA Ames Research Center, Moffett Field, CA, United States; Bay Area Environmental Research Institute, Moffett Field, CA, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Universities Space Research Association, Columbia, MD, United States; Department of Geo-Spatial Sciences and Technology, Namibia University of Science and Technology, Windhoek, Namibia; Unit for Environmental Science and Management, North-West University, Potchefstroom, North-West, South Africa; College of Engineering, Mathematics and Physical Science, University of Exeter, Exeter, EX4 4QE, United Kingdom; Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR, CNRS 7583, Université Paris-Est-Créteil, Université de Paris, Institut Pierre Simon Lapla...
推荐引用方式 GB/T 7714	Redemann J.,Wood R.,Zuidema P.,et al. An overview of the ORACLES (ObseRvations of aerosols above CLouds and their intEractionS) project: Aerosol-cloud-radiation interactions in the southeast Atlantic basin[J],2021,21(3).
APA	Redemann J..,Wood R..,Zuidema P..,Doherty S.J..,Luna B..,...&Gao L..(2021).An overview of the ORACLES (ObseRvations of aerosols above CLouds and their intEractionS) project: Aerosol-cloud-radiation interactions in the southeast Atlantic basin.Atmospheric Chemistry and Physics,21(3).
MLA	Redemann J.,et al."An overview of the ORACLES (ObseRvations of aerosols above CLouds and their intEractionS) project: Aerosol-cloud-radiation interactions in the southeast Atlantic basin".Atmospheric Chemistry and Physics 21.3(2021).