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dc.contributor.authorRubert, Gisele Cristina Dottopt_BR
dc.contributor.authorSouza, Vanessa de Arrudapt_BR
dc.contributor.authorZimmer, Tamirespt_BR
dc.contributor.authorVeeck, Gustavo Pujolpt_BR
dc.contributor.authorMergen, Alecsanderpt_BR
dc.contributor.authorBremm, Tiagopt_BR
dc.contributor.authorRuhoff, Anderson Luispt_BR
dc.contributor.authorGonçalves, Luis Gustavo Gonçalves dept_BR
dc.contributor.authorRoberti, Débora Reginapt_BR
dc.date.accessioned2022-02-18T04:34:18Zpt_BR
dc.date.issued2022pt_BR
dc.identifier.issn2073-4433pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/235310pt_BR
dc.description.abstractEnergy and water exchange between the surface and the atmosphere are important drivers to Earth’s climate fromlocal to global scale. In thisstudy, the energy dynamic and the biophysical mechanisms thatcontrol the energy partitioning overa natural grassland pasture overthe Brazilian Pampa biome are investigated using two micrometeorological sites located 300 km apart, in Southern Brazil. The latent heatflux, LE, was the maincomponent of the energy balance in bothautumn-winter (AW)and spring-summer (SS)periods. Annually, approximately 60% of the available energy is usedfor evapotranspiration (ET). However, the Bowen ratio presents seasonal variability greater in AW than SS. Global radiation, Rg, is the atmospheric variable controlling LE and sensible heatflux, H. Hysteresis curves in the daily cycle wereobserved for ET and surface conductance, Cs, regarding the environmental variables, net radiation, vapor pressure deficit, and air temperature. Among the variables analyzed in the Pampa biome, surface conductance and evapotranspiration respond more strongly to the vapor pressure deficit. The hysteresis cycles formed by ET and conductance show a substantial biophysical control in the ET process. The results obtained here allowed a comprehension of the biophysical mechanisms involved in the energy partition process in natural grassland. Therefore, thisstudy can be usedas abasefor research on land-use changes in this unique ecosystem of the Pampa biome.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofAtmosphere. Basel. Vol. 13, n.1 (Jan. 2022), [Article] 23, 21 p.pt_BR
dc.rightsOpen Accessen
dc.subjectBalanço de energiapt_BR
dc.subjectEnergy balanceen
dc.subjectBioma Pampapt_BR
dc.subjectEvapotranspirationen
dc.subjectEvapotranspiraçãopt_BR
dc.subjectSurface conductanceen
dc.subjectAerodynamic conductanceen
dc.subjectVariação sazonalpt_BR
dc.subjectGrasslanden
dc.titlePatterns and controls of the latent and sensible heat fluxes in the brazilian Pampa biomept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001136100pt_BR
dc.type.originEstrangeiropt_BR


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