%0 Journal Article
%@nexthigherunit 8JMKD3MGPCW/3EUPEJL
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@dissemination WEBSCI; PORTALCAPES.
%@archivingpolicy denypublisher allowfinaldraft
%@secondarytype PRE PI {WEBSCI; PORTALCAPES.} {0027-8424 1091-6490} {PRE PN}
%@issn 0027-8424
%@issn 1091-6490
%3 luiz augusto.pdf
%@mirrorrepository sid.inpe.br/mtc-m18@80/2008/03.17.15.17.24
%D 2009
%4 sid.inpe.br/mtc-m18@80/2009/04.23.11.29
%T Impact of deforestation in the Amazon basin on cloud climatology
%@usergroup administrator
%@usergroup deicy
%V 106
%@affiliation MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA
%@affiliation MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA
%@affiliation MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA
%@affiliation Atmospher Res, Pittsford, VT 05763 USA
%@affiliation Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA
%@affiliation MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA
%@affiliation Univ Calif Irvine, Henry Samueli Sch Engn, Irvine, CA 92967 USA
%@resumeid
%@resumeid
%@resumeid
%@resumeid
%@resumeid
%@resumeid 8JMKD3MGP5W/3C9JHMS
%@versiontype publisher
%X Shallow clouds are prone to appear over deforested surfaces whereas deep clouds, much less frequent than shallow clouds, favor forested surfaces. Simultaneous atmospheric soundings at forest and pasture sites during the Rondonian Boundary Layer Experiment (RBLE-3) elucidate the physical mechanisms responsible for the observed correlation between clouds and land cover. We demonstrate that the atmospheric boundary layer over the forested areas is more unstable and characterized by larger values of the convective available potential energy ( CAPE) due to greater humidity than that which is found over the deforested area. The shallow convection over the deforested areas is relatively more active than the deep convection over the forested areas. This greater activity results from a stronger lifting mechanism caused by mesoscale circulations driven by deforestation-induced heterogeneities in land cover.
%8 mar.
%@area MET
%@secondarykey INPE--PRE/
%@documentstage not transferred
%@e-mailaddress deicy.farabello@cptec.inpe.br
%K climate, land-cover heterogeneity, mesoscale circulations.
%@doi 10.1073/pnas.0810156106
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%@group CPT-CPT-INPE-MCT-BR
%N 10
%@secondarydate 20090310
%P 3670-3674
%A Wang, Jingfeng,
%A Chagnon,  Frederich J. F,
%A Williams, E. R.,
%A Betts, Alan K.,
%A Renno, Nilton O.,
%A Machado, Luiz Augusto Toledo,
%A Bisht, Gautam,
%A Knox, Ryan,
%A Brase, Rafael L.,
%B Proceedings of the National Academy of Sciences of the United Sates of America
%2 sid.inpe.br/mtc-m18@80/2009/04.23.11.29.04