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...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2015-10-01
|
Series: | Atmosphere |
Subjects: | |
Online Access: | http://www.mdpi.com/2073-4433/6/10/1578 |
_version_ | 1819071219237912576 |
---|---|
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. |
first_indexed | 2024-12-21T17:18:21Z |
format | Article |
id | doaj.art-96b753f728f04a74bd9a82963925e8fd |
institution | Directory Open Access Journal |
issn | 2073-4433 |
language | English |
last_indexed | 2024-12-21T17:18:21Z |
publishDate | 2015-10-01 |
publisher | MDPI AG |
record_format | Article |
series | Atmosphere |
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 |
work_keys_str_mv | AT nestorsantillansoto radiationbalanceofurbanmaterialsandtheirthermalimpactinsemidesertregionmexicalimexicostudycase AT rafaelgarciacueto radiationbalanceofurbanmaterialsandtheirthermalimpactinsemidesertregionmexicalimexicostudycase AT zaliaharorincon radiationbalanceofurbanmaterialsandtheirthermalimpactinsemidesertregionmexicalimexicostudycase AT saraojedabenitez radiationbalanceofurbanmaterialsandtheirthermalimpactinsemidesertregionmexicalimexicostudycase AT margaritoquinteronunez radiationbalanceofurbanmaterialsandtheirthermalimpactinsemidesertregionmexicalimexicostudycase AT nicolasvelazquezlimon radiationbalanceofurbanmaterialsandtheirthermalimpactinsemidesertregionmexicalimexicostudycase |