Bowen Ratio in Western São Paulo State, Brazil
This paper discusses micrometeorological aspects of the urban climate in three cities in Western São Paulo State: Presidente Prudente, Assis and Iepê. Particular attention is paid to the method used to estimate the components of the energy balance at the surface. Estimates of convective fluxes showed that the Bowen ratio was an indicator of the local climate and that its magnitude varied between 0.3 and 0.7. Maximum values for the Bowen ratio occurred earlier in Iepê (11:00 am) than in Presidente Prudente (4:00 pm). The results indicate that the Bowen ratio is modulated by the radiation balance at the surface and by different clusters of vegetation.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1109143Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3656
 A. J. Arnfield, “Review: two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island” in International Journal of Climatology, 2003, vol. 23, pp. 1–26.
 V. Masson “Urban surface modeling and the meso-scale impact of cities” in Theoretical and Applied Climatology, 2006, vol. 84, pp. 35– 45.
 B. Offerle, C. S. B. Grimmond. and T. R. Oke “Parameterization of net all-wave radiation for urban areas” in Journal of Applied Meteorology, 2003, vol. 42, pp.1157-1173.
 T. R. de Azevedo “O fluxo de calor gerado pelas atividades humanas” in GEOUSP, 2001, vol. 4, pp. 71 – 93 (in Portuguese).
 J. R. Tarifa and C. A. F. Monteiro “Balanço de energia em seqüência de tipos de tempo: uma avaliação no oeste paulista (Presidente Prudente) 1968-1969” in Climatologia, 1972, 15 (9)f (in Portuguese).
 H. L. Pradella “A construção do conceito de “tipos de tempo” entre os séculos XVII e XXI, no âmbito das Ciências Atmosféricas” Dissertação de Mestrado, Faculdade de Filosofia, Letras e Ciências Humanas, Universidade de São Paulo, 2014 (in Portuguese).
 IBGE – Iinstituto Brasileiro de Geografia e Estatística. Disponível em < http://www.censo2010.ibge.gov.br/ >. Acessado em 3 de dezembro de 2012 (in Portuguese).
 R. Ellefsen “Mapping and measuring buildings in the urban canopy boundary layer in ten US cities” in Energy and Buildings, 1991, v. 16, pp.1025-1049.
 M. J. Ferreira, A. P. de Oliveira and J. Soares “Diurnal variation in stored energy flux in São Paulo city, Brazil” in Urban Climate, 2013, v.5, pp. 36-51.
 T. R. Oke Boundary Layer Climates, 2ª ed., London, Routledge, 1987.
 A. Goldbach and W. Kuttler “Quantification of turbulent heat fluxes for adaptation strategies within urban planning” in Proceedings of the 8th International Conference on Urban Climates (ICUC8), Dublin College University, Ireland, 83, August 6th to 10 th, 2012.