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Land Use Change Suppresses Precipitation : Volume 9, Issue 17 (10/09/2009)

By Junkermann, W.

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Book Id: WPLBN0003995052
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: Land Use Change Suppresses Precipitation : Volume 9, Issue 17 (10/09/2009)  
Author: Junkermann, W.
Volume: Vol. 9, Issue 17
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Description
Description: Forschungszentrum Karlsruhe, IMK-IFU, Garmisch-Partenkirchen, Germany. A feedback loop between regional scale deforestation and climate change was investigated in an experiment using novel, small size airborne platforms and instrument setups. Experiments were performed in a worldwide unique natural laboratory in Western Australia, characterized by two adjacent homogeneous observation areas with distinctly different land use characteristics. Conversion of several ten thousand square km of forests into agricultural land began more than a century ago. Changes in albedo, surface roughness, the soil water budget and the planetary boundary layer evolved over decades. Besides different meteorology, we found a significant up to now overlooked source of aerosol over the agriculture area. The enhanced number of cloud condensation nuclei is coupled through the hydrological groundwater cycle with deforestation. Modification of surface properties and aerosol number concentrations are key factors for the observed reduction of precipitation. The results document the importance of aerosol indirect effects on climate due to nanometer size biogenic aerosol and human impact on aerosol sources.

Summary
Land use change suppresses precipitation

Excerpt
Allan, R. J. and Haylock, M. R.: Circulation features associated with the winter rainfall decrease in Southwestern Australia, J. Climate, 6, 1356–1367, 1993.; Ayers, G.: Air Pollution and Climate Change: Has air pollution suppressed rainfall over Australia, Clean Air and Environmental Quality, 39(2), 51–57, 2005.; Bates, B. C., Kundzewicz, Z. W., Wu, S., and Palutikof, J. P. (Eds.): Climate Change and Water. Technical Paper of the Intergovernmental Panel on Climate Change, IPCC Secretariat, Geneva, 210 pp., 2008.; Benison, K. C.: Sedimentology of Acid Saline Lakes in Southern Western Australia: Newly Described Processes and Products of an Extreme Environment, J. Sediment. Res., 77, 366–388; doi:10.2110/jsr.2007.038, 2007.; Bigg, E. K. and Turvey, D. E.: Sources of atmospheric particles over Australia, Atmos. Environ., 12, 1643–1655, 1978.; Bigg, E. K., Gras, J. L., and Evans, C.: Origin of Aitken particles in remote regions of the Southern Hemisphere, J. Atmos. Chem., 1, 203–214, 1984.; Bigg, E. K.: Trends in rainfall associated with sources of air pollution, Environ. Chem., 5, 184–193, 2008.; Chin, M., Kahn, R. A., and Schwartz, S. E. (Eds.): Atmospheric Aerosol Properties and Impacts on Climate, a report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. NASA, Washington, D.C., USA, 2009.; Lyons, T. J.: Clouds prefer native vegetation, Meteorol. Atmos. Phys., 80, 131–140, 2002.; Dusek, U., Frank, G. P., Hildebrandt, L., Curtius, J., Schneider, J., Walter, S., Chand, D., Drewnick, F., Hings, S., Jung, D., Borrmann, S., and Andreae, M. O.:, Size matters more than chemistry for cloud-nucleating ability of aerosol particles, Science, 312, 1375–1378, 2006.; Guo, H., Ding, A., Morawska, L., He, C., Ayoko, G., Li, Y.-S., and Hung, W.-T.: Size distribution and new particle formation in subtropical eastern Australia, Environ. Chem., 5, 382–390, 2008.; Fletcher, N.: The Physics of Rainclouds, Cambridge Univ. Press, Cambridge, 1962.; Flossmann, A.: Clouds and pollution, Pure Appl. Chem., 70(7), 1345–1352, 1998.; Givati, A. and Rosenfeld, D.: Quantifying Precipitation Suppression Due to Air Pollution, J. Appl. Meteorol., 43, 1038–1056, 2004.; Johnson, D. B.: The Role of Giant and Ultragiant Aerosol Particles in Warm Rain Initiation, J. Atmos. Sci., 39, 448–460, 1982.; Junkermann, W.: The actinic UV-radiation budget during the ESCOMPTE campaign 2001: Results of airborne measurements with the microlight research aircraft D-MIFU, Atmos. Res., 74, 461–475, 2005.; Kulmala, M., Vehkamäki, H., Petäjä, T., Dal Maso, M., Lauri, A., Kerminen, V. M., Birmili, W., and McMurry, P. H.: Formation and growth rates of ultrafine atmospheric particles: a review of observations, J. Aerosol Sci., 35, 143–176, 2004.; Laaksonen, A., Hamed, A., Joutsensaari, J., Hiltunen, L., Cavalli, F., Junkermann, W., Asmi, A., Fuzzi S., and Facchini, M. C.: Cloud Condensation Nucleus Production from Nucleation Events at a Highly Polluted Region, Geophys. Res. Lett., 32, L06812, doi:10.1029/2004GL022092, 2005.; Lohmann, U. and Feichter, J.: Global indirect aerosol effects: A review. J., Atmos. Chem. Phys., 5, 715–737, 2005.; Lyons, T. J., Smith, R. C. G., and Huang, X.: The impact of clearing for agriculture on the surface energy budget, Int. J. Climatol., 16, 551–558, 1996.; Lyons, T. J., Schwerdtfeger, P., Hacker, J. M., Forster, I. J., Smith, R. G. C., and Huang, X.: Land atmosphere interaction in a semiarid region – the bunny fence experiment, B. Am. Meteorol. Soc., 74, 1327–1334, 1993.; Modini, R. L., Ristovski, Z. D., Johnson, G. R., He, C., Surawski, N., Morawska, L., Suni, T., and Kulmala, K.: New particle formation and growth at a remote, sub-tropical coastal location, Atmos. Chem. Phys. Discuss., 9, 12 101–12 139, 2009.; O'Dowd, C. D., Yoon, Y. J., Junkermann, W., Aalto, P., Kulmala, M., Lihavainen, M., and Viisanen, M. Y.: Airborne measurements of nucleation mode particles I: coastal nucleation and growth rates, Atmos. Che

 

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