Substantial convection and precipitation enhancements by ultrafineaerosol particles

Author:

Fan Jiwen1ORCID,Rosenfeld Daniel2,Zhang Yuwei13ORCID,Giangrande Scott E.4ORCID,Li Zhanqing35ORCID,Machado Luiz A. T.6ORCID,Martin Scot T.7ORCID,Yang Yan18ORCID,Wang Jian4ORCID,Artaxo Paulo9ORCID,Barbosa Henrique M. J.910ORCID,Braga Ramon C.6ORCID,Comstock Jennifer M.1ORCID,Feng Zhe1ORCID,Gao Wenhua111,Gomes Helber B.12ORCID,Mei Fan1ORCID,Pöhlker Christopher13,Pöhlker Mira L.13,Pöschl Ulrich1314ORCID,de Souza Rodrigo A. F.15ORCID

Affiliation:

1. Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA.

2. Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem 91904, Israel.

3. Department of Atmospheric and Oceanic Science and ESSIC, University of Maryland, College Park, MD 20742, USA.

4. Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, USA.

5. State Laboratory of Earth Surface Process and Resource Ecology, GCESS, Beijing Normal University, Beijing, China.

6. Centro de Previsão de Tempo e Estudos Climáticos, Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, Brazil.

7. School of Engineering and Applied Sciences and Department of Earth and Planetary Sciences, Harvard University, Boston, MA, USA.

8. Beijing Municipal Weather Modification Office, Beijing 100089, China.

9. Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, 05508-090 São Paulo, Brazil.

10. Department of Physics, University of Maryland Baltimore County, Baltimore, MD, USA.

11. State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100086, China.

12. Atmospheric and Climate Dynamics Laboratory, Institute of Atmospheric Sciences, Federal University of Alagoas, Brazil.

13. Multiphase Chemistry and Biogeochemistry Departments, Max Planck Institute for Chemistry, 55020 Mainz, Germany.

14. Johannes Gutenberg University Mainz, 55122 Mainz, Germany.

15. Department of Meteorology, School of Technology, Amazonas State University (UEA), Manaus-AM, Brazil.

Abstract

Up with ultrafine aerosol particles Ultrafine aerosol particles (smaller than 50 nanometers in diameter) have been thought to be too small to affect cloud formation. Fan et al. show that this is not the case. They studied the effect of urban pollution transported into the otherwise nearly pristine atmosphere of the Amazon. Condensational growth of water droplets around the tiny particles releases latent heat, thereby intensifying atmospheric convection. Thus, anthropogenic ultrafine aerosol particles may exert a more important influence on cloud formation processes than previously believed. Science , this issue p. 411

Funder

U.S. Department of Energy

Department of Energy

the National Science Foundation

the German Federal Ministry of Education and Research

Brazilian National Council for Scientific and Technological Development

BACCHUS European Commission

the Brazilian Ministério da Ciência, Tecnologia e Inovação

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference52 articles.

1. R. A. Houze Jr. Cloud Dynamics (Elsevier/Academic Press ed. 2 2014).

2. Comparison of observed and simulated spatial patterns of ice microphysical processes in tropical oceanic mesoscale convective systems

3. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (Cambridge Univ. Press 2013).

4. Review of Aerosol–Cloud Interactions: Mechanisms, Significance, and Challenges

5. Impact of aerosols on convective clouds and precipitation

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