Journal ArticleDOI
Flood or drought: How do aerosols affect precipitation?
Daniel Rosenfeld,Ulrike Lohmann,Graciela B. Raga,Colin D. O'Dowd,Markku Kulmala,Sandro Fuzzi,Anni Reissell,Meinrat O. Andreae +7 more
TLDR
A conceptual model is proposed that explains this apparent dichotomy of pristine tropical clouds with low CCN concentrations rain out too quickly to mature into long-lived clouds and heavily polluted clouds evaporate much of their water before precipitation can occur.Abstract:
Aerosols serve as cloud condensation nuclei (CCN) and thus have a substantial effect on cloud properties and the initiation of precipitation. Large concentrations of human-made aerosols have been reported to both decrease and increase rainfall as a result of their radiative and CCN activities. At one extreme, pristine tropical clouds with low CCN concentrations rain out too quickly to mature into long-lived clouds. On the other hand, heavily polluted clouds evaporate much of their water before precipitation can occur, if they can form at all given the reduced surface heating resulting from the aerosol haze layer. We propose a conceptual model that explains this apparent dichotomy.read more
Citations
More filters
Journal ArticleDOI
Precipitation response to aerosol–radiation and aerosol–cloud interactions in regional climate simulations over Europe
Jose María López-Romero,Juan Pedro Montávez,Sonia Jerez,Raquel Lorente-Plazas,Laura Palacios-Peña,Pedro Jiménez-Guerrero +5 more
TL;DR: In this paper, a series of regional climatic simulations (years 1991-2010) for the Euro-CORDEX domain have been conducted including ARI and ACI, establishing as reference a simulations where aerosols have not been included interactively (BASE).
Journal ArticleDOI
Fast responses of climate system to carbon dioxide, aerosols and sulfate aerosols without the mediation of SST in the CMIP5
TL;DR: In this paper, fast climate system responses to CO2, aerosols and sulfate aerosols are studied based on simulations of Coupled Model Intercomparison Project Phase 5 (CMIP5) atmospheric models.
Journal ArticleDOI
A Comparison of the Mineral Dust Absorptive Properties between Two Asian Dust Events
TL;DR: In this article, the spectral single scattering albedo (wo(λ) was calculated for two strong Asian dust events from the winter (December 2007) and spring (March 2010) seasons using AERONET retrieved parameters from three sites along the dust event path.
Journal ArticleDOI
Observed monsoon precipitation suppression caused by anomalous interhemispheric aerosol transport
TL;DR: In this paper, the impacts of smoke aerosols advected from the Southern Hemisphere on the dynamics of the West African monsoon were analyzed using satellite observations and atmospheric reanalysis products.
Journal ArticleDOI
Precipitation sensitivity to autoconversion rate in a numerical weather-prediction model
Céline Planche,John H. Marsham,Paul R. Field,Paul R. Field,Kenneth S. Carslaw,Adrian Hill,Graham Mann,Ben Shipway +7 more
TL;DR: In this paper, a suite of one-way nested Met Office Unified Model (UM) runs, with a single-moment bulk microphysics scheme was used to study two convective cases with contrasting characteristics observed in southern England.
References
More filters
疟原虫var基因转换速率变化导致抗原变异[英]/Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Journal ArticleDOI
Aerosols, climate, and the hydrological cycle
TL;DR: Human activities are releasing tiny particles (aerosols) into the atmosphere that enhance scattering and absorption of solar radiation, which can lead to a weaker hydrological cycle, which connects directly to availability and quality of fresh water, a major environmental issue of the 21st century.
Journal ArticleDOI
Global indirect aerosol effects: a review
Ulrike Lohmann,Johann Feichter +1 more
TL;DR: In this article, the effects of aerosols on the climate system are discussed and different approaches how the climatic implications of these effects can be estimated globally as well as improvements that are needed in global climate models in order to better represent indirect aerosol effects are discussed.
Journal ArticleDOI
Climate Effects of Black Carbon Aerosols in China and India
TL;DR: A global climate model used to investigate possible aerosol contributions to trends in China and India found precipitation and temperature changes in the model that were comparable to those observed if the aerosols included a large proportion of absorbing black carbon (“soot”), similar to observed amounts.
Journal ArticleDOI
Inaugural Article by a Recently Elected Academy Member
Jian Xu,Jeffrey I. Gordon +1 more