Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case

Net radiation is an essential forcing of climate in the lower layers of Earth’s atmosphere. In this paper, radiation balance is measured in clay soil and green grass, and is compared with three urban materials. These materials: asphalt, concrete and white painted elastomeric polystyrene roofing shee...

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Main Authors: Néstor Santillán-Soto, Rafael García-Cueto, Zalia Haro-Rincón, Sara Ojeda-Benítez, Margarito Quintero-Núñez, Nicolás Velázquez-Limón
Format: Article
Language:English
Published: MDPI AG 2015-10-01
Series:Atmosphere
Subjects:
Online Access:http://www.mdpi.com/2073-4433/6/10/1578
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author Néstor Santillán-Soto
Rafael García-Cueto
Zalia Haro-Rincón
Sara Ojeda-Benítez
Margarito Quintero-Núñez
Nicolás Velázquez-Limón
author_facet Néstor Santillán-Soto
Rafael García-Cueto
Zalia Haro-Rincón
Sara Ojeda-Benítez
Margarito Quintero-Núñez
Nicolás Velázquez-Limón
author_sort Néstor Santillán-Soto
collection DOAJ
description Net radiation is an essential forcing of climate in the lower layers of Earth’s atmosphere. In this paper, radiation balance is measured in clay soil and green grass, and is compared with three urban materials. These materials: asphalt, concrete and white painted elastomeric polystyrene roofing sheet are widely used in Mexicali, Baja California, México. This study was carried out during August of 2011, the hottest time of the year. The 24-hour average values of net radiation found were: 137.2 W·m−2 for asphalt, 119.1 for concrete, 104.6 for clay soil, 152 for green grass and 29.2 for the polystyrene insulation. The latter two types of materials are likely to be the most effective in reducing urban heat island effects. This variation in the radiation balance has widespread implications for human living conditions, as land cover change tends to be towards surfaces that have higher levels of net radiation.
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spelling doaj.art-96b753f728f04a74bd9a82963925e8fd2022-12-21T18:56:14ZengMDPI AGAtmosphere2073-44332015-10-016101578158910.3390/atmos6101578atmos6101578Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study CaseNéstor Santillán-Soto0Rafael García-Cueto1Zalia Haro-Rincón2Sara Ojeda-Benítez3Margarito Quintero-Núñez4Nicolás Velázquez-Limón5Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd, Benito Juárez y calle de la Normal s/n. Col. Insurgentes Este, C.P. 21280, Mexicali, Baja California, MexicoInstituto de Ingeniería, Universidad Autónoma de Baja California, Blvd, Benito Juárez y calle de la Normal s/n. Col. Insurgentes Este, C.P. 21280, Mexicali, Baja California, MexicoGraduated of the Doctorate in Engineering Program, Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd, Benito Juárez y calle de la Normal s/n. Col. Insurgentes Este, C.P. 21280, Mexicali, Baja California, MexicoInstituto de Ingeniería, Universidad Autónoma de Baja California, Blvd, Benito Juárez y calle de la Normal s/n. Col. Insurgentes Este, C.P. 21280, Mexicali, Baja California, MexicoInstituto de Ingeniería, Universidad Autónoma de Baja California, Blvd, Benito Juárez y calle de la Normal s/n. Col. Insurgentes Este, C.P. 21280, Mexicali, Baja California, MexicoInstituto de Ingeniería, Universidad Autónoma de Baja California, Blvd, Benito Juárez y calle de la Normal s/n. Col. Insurgentes Este, C.P. 21280, Mexicali, Baja California, MexicoNet radiation is an essential forcing of climate in the lower layers of Earth’s atmosphere. In this paper, radiation balance is measured in clay soil and green grass, and is compared with three urban materials. These materials: asphalt, concrete and white painted elastomeric polystyrene roofing sheet are widely used in Mexicali, Baja California, México. This study was carried out during August of 2011, the hottest time of the year. The 24-hour average values of net radiation found were: 137.2 W·m−2 for asphalt, 119.1 for concrete, 104.6 for clay soil, 152 for green grass and 29.2 for the polystyrene insulation. The latter two types of materials are likely to be the most effective in reducing urban heat island effects. This variation in the radiation balance has widespread implications for human living conditions, as land cover change tends to be towards surfaces that have higher levels of net radiation.http://www.mdpi.com/2073-4433/6/10/1578net radiationlongwave radiationshortwave radiationsolar radiationurban climateurban coverage
spellingShingle Néstor Santillán-Soto
Rafael García-Cueto
Zalia Haro-Rincón
Sara Ojeda-Benítez
Margarito Quintero-Núñez
Nicolás Velázquez-Limón
Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case
Atmosphere
net radiation
longwave radiation
shortwave radiation
solar radiation
urban climate
urban coverage
title Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case
title_full Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case
title_fullStr Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case
title_full_unstemmed Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case
title_short Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case
title_sort radiation balance of urban materials and their thermal impact in semi desert region mexicali mexico study case
topic net radiation
longwave radiation
shortwave radiation
solar radiation
urban climate
urban coverage
url http://www.mdpi.com/2073-4433/6/10/1578
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