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WFRF:(Rizzo Luciana V.)
 

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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005560naa a2200649 4500
001oai:lup.lub.lu.se:4e43180f-1841-44a0-a443-f95637cd810b
003SwePub
008160401s2007 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/6793212 URI
0247 a https://doi.org/10.1029/2005JD0067412 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Fuzzi, Sandro4 aut
2451 0a Overview of the inorganic and organic composition of size-segregated aerosol in Rondonia, Brazil, from the biomass-burning period to the onset of the wet season
264 1c 2007
520 a The aerosol characterization experiment performed within the Large-Scale Biosphere-Atmosphere Experiment in Amazonia-Smoke, Aerosols, Clouds, Rainfall and Climate (LBA-SMOCC) field experiment carried out in Rondonia, Brazil, in the period from September to November 2002 provides a unique data set of size-resolved chemical composition of boundary layer aerosol over the Amazon Basin from the intense biomass-burning period to the onset of the wet season. Three main periods were clearly distinguished on the basis of the PM10 concentration trend during the experiment: (1) dry period, with average PM10 well above 50 mu g m(-3); (2) transition period, during which the 24-hour-averaged PM10 never exceeded 40 mu g m(-3) and never dropped below 10 mg m(-3); (3) and wet period, characterized by 48-hour-averaged concentrations of PM10 below 12 mu g m(-3) and sometimes as low as 2 mu g m(-3). The trend of PM10 reflects that of CO concentration and can be directly linked to the decreasing intensity of the biomass- burning activities from September through November, because of the progressive onset of the wet season. Two prominent aerosol modes, in the submicron and supermicron size ranges, were detected throughout the experiment. Dry period size distributions are dominated by the fine mode, while the fine and coarse modes show almost the same concentrations during the wet period. The supermicron fraction of the aerosol is composed mainly of primary particles of crustal or biological origin, whereas submicron particles are produced in high concentrations only during the biomass-burning periods and are mainly composed of organic material, mostly water-soluble, and similar to 10% of soluble inorganic salts, with sulphate as the major anion. Size-resolved average aerosol chemical compositions are reported for the dry, transition, and wet periods. However, significant variations in the aerosol composition and concentrations were observed within each period, which can be classified into two categories: (1) diurnal oscillations, caused by the diurnal cycle of the boundary layer and the different combustion phase active during day (flaming) or night (smouldering); and (2) day-to-day variations, due to alternating phases of relatively wet and dry conditions. In a second part of the study, three subperiods representative of the conditions occurring in the dry, transition, and wet periods were isolated to follow the evolution of the aerosol chemical composition as a function of changes in rainfall rate and in the strength of the sources of particulate matter. The chemical data set provided by the SMOCC field experiment will be useful to characterize the aerosol hygroscopic properties and the ability of the particles to act as cloud condensation nuclei.
650 7a NATURVETENSKAPx Fysikx Subatomär fysik0 (SwePub)103012 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Subatomic Physics0 (SwePub)103012 hsv//eng
653 a aerosol chemical composition
653 a biomass burning
653 a organic aerosol
7001 a Decesari, Stefano4 aut
7001 a Facchini, Maria Cristina4 aut
7001 a Cavalli, Fabrizia4 aut
7001 a Emblico, Lorenza4 aut
7001 a Mircea, Mihaiela4 aut
7001 a Andreae, Meinrat O.4 aut
7001 a Trebs, Ivonne4 aut
7001 a Hoffer, Andras4 aut
7001 a Guyon, Pascal4 aut
7001 a Artaxo, Paulo4 aut
7001 a Rizzo, Luciana V.4 aut
7001 a Lara, Luciene L.4 aut
7001 a Pauliquevis, Theotonio4 aut
7001 a Maenhaut, Willy4 aut
7001 a Raes, Nico4 aut
7001 a Chi, Xuguang4 aut
7001 a Mayol-Bracero, Olga L.4 aut
7001 a Soto-Garcia, Lydia L.4 aut
7001 a Claeys, Magda4 aut
7001 a Kourtchev, Ivan4 aut
7001 a Rissler, Jennyu Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)nucl-jri
7001 a Swietlicki, Eriku Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)nucl-esw
7001 a Tagliavini, Emilio4 aut
7001 a Schkolnik, Gal4 aut
7001 a Falkovich, Alla H.4 aut
7001 a Rudich, Yinon4 aut
7001 a Fisch, Gilberto4 aut
7001 a Gatti, Luciana V.4 aut
7102 a Kärnfysikb Fysiska institutionen4 org
7730 t Journal of Geophysical Researchg 112:D1q 112:D1x 2156-2202
8564 u http://dx.doi.org/10.1029/2005JD006741y FULLTEXT
8564 8u https://lup.lub.lu.se/record/679321
8564 8u https://doi.org/10.1029/2005JD006741

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