Isla de Calor Urbana Superficial para Tres Megaciudades en África

Authors

  • Julio Miguel Angeles Suazo Universidad Nacional Intercultural de la Selva Central Juan Santos Atahualpa. Vicepresidencia de Investigación. Av. Perú 612, Pampa del Carmen,12856 Chanchamayo, Perú Universidad Tecnológica del Perú. Facultad de Ingeniería Civil. Av. Circunvalación 449, 12002 El Tambo, Huancayo, Perú.
  • Jose Luis Flores Rojas Instituto Geofísico del Perú, Calle Badajoz 169,15498 Urb. Mayorazgo IV Etapa – Ate, Lima-Perú
  • Hugo Abi Karam Universidade Federal do Rio de Janeiro, Instituto de Geociências, Departamento de Meteorologia. Rua Athos da Silveira Ramos 274, Cidade Universitária, Ilha do Fundão,21.941-916, Rio de Janeiro, RJ, Brasil

DOI:

https://doi.org/10.11137/2020_2_64_75

Keywords:

Lagos, Cairo, Johannesburgo, Ilha de calor urbana.

Abstract

Esta contribuição estima a Intensidade da Ilha de Calor Urbano Superficial (IICUS), durante o período de 2001 a 2016, para as Áreas Metropolitanas do Cairo (AMC), Johannesburgo (AMJ) e Lagos (AML), localizadas na África. Para quantificar as IICUS foram utilizados dois métodos: o primeiro, o método Gaussiano e, o segundo, o método dos Quantis. Ambos métodos utilizaram dados mensais de sensoriamento remoto da temperatura da superfície (TS) e o produto anual do tipo cobertura do solo (com resolução espacial horizontal de 0,05° ou aproximadamente 5,6 km ao longo do equador), obtidos a partir do sensor Moderate Resolution Imaging Spectroradiometer (MODIS) a bordo dos satélites TERRA e AQUA do EOS/NASA. Nos resultados obtidos para o método Gaussiano, no período diurno a IICUS a máxima mensal ocorreu na AML de 4,82 °C e a mínima mensal também na AML de valor 0,01°C. Já no período noturno, a máxima mensal foi na AMC de 4,64°C e a mínima mensal na AMJ de valor 1,30°C. Para o método dos Quantis, a IICUS diurna máxima mensal foi encontrada na AML de 5,78°C e mínima mensal na AMC de valor -1,56°C. No período noturno, a IICUS máxima mensal foi na AMC de 4,88°C e mínima mensal na AML de valor 2,05°C.

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Published

2020-08-21

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