Urban irrigation reduces moist heat stress in Beijing, China
Abstract Although urban irrigation can modulate local hydrothermal conditions and mitigate urban heat island effects, its impact on moist heat stress (MHS) is poorly understood. Employing the Weather Research and Forecasting Single-Layer Urban Canopy Model (WRF-SLUCM), we evaluated the effect of urb...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-02-01
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| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-024-00585-6 |
| _version_ | 1797275356418277376 |
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| author | Shuai Sun Qiang Zhang Chunxiang Shi Vijay P. Singh Tao Zhang Junxia Gu Gang Wang Wenhuan Wu Donghui Chen Jianmei Wu |
| author_facet | Shuai Sun Qiang Zhang Chunxiang Shi Vijay P. Singh Tao Zhang Junxia Gu Gang Wang Wenhuan Wu Donghui Chen Jianmei Wu |
| author_sort | Shuai Sun |
| collection | DOAJ |
| description | Abstract Although urban irrigation can modulate local hydrothermal conditions and mitigate urban heat island effects, its impact on moist heat stress (MHS) is poorly understood. Employing the Weather Research and Forecasting Single-Layer Urban Canopy Model (WRF-SLUCM), we evaluated the effect of urban irrigation on the MHS in Beijing, China, and found that the updated initial soil moisture (SM) field improved the simulation of temperature, relative humidity, and wind speed. Besides, urban irrigation reduced urban and rural MHS, and particularly reduced afternoon and evening MHS by up to 1.2 °C but increased morning MHS by up to 0.4 °C. In addition, the effect of different irrigation times on MHS showed that irrigation at 02 and 20 h increased urban and rural MHS, with the best cooling effect at 00 and 13 h, which reduced the MHS by up to 2.65 °C in urban areas and 0.71 °C in rural areas. The findings highlighted mechanistically the effect of urban irrigation on MHS and shed light on how to mitigate urban heat island effects on urban sustainable development. |
| first_indexed | 2024-03-07T15:12:09Z |
| format | Article |
| id | doaj.art-8dbda887e8cc4f869371b082637f1db7 |
| institution | Directory Open Access Journal |
| issn | 2397-3722 |
| language | English |
| last_indexed | 2024-03-07T15:12:09Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj.art-8dbda887e8cc4f869371b082637f1db72024-03-05T18:08:08ZengNature Portfolionpj Climate and Atmospheric Science2397-37222024-02-01711810.1038/s41612-024-00585-6Urban irrigation reduces moist heat stress in Beijing, ChinaShuai Sun0Qiang Zhang1Chunxiang Shi2Vijay P. Singh3Tao Zhang4Junxia Gu5Gang Wang6Wenhuan Wu7Donghui Chen8Jianmei Wu9National Meteorological Information Center, China Meteorological AdministrationAdvanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal UniversityNational Meteorological Information Center, China Meteorological AdministrationDepartment of Biological and Agricultural Engineering, Zachry Department of Civil and Environmental Engineering, Texas A&M UniversityNational Meteorological Information Center, China Meteorological AdministrationNational Meteorological Information Center, China Meteorological AdministrationFaculty of Geographical Science, Beijing Normal UniversityBeijing Research Institute of Uranium GeologyNational Meteorological Information Center, China Meteorological AdministrationZhucheng Meteorological AdministrationAbstract Although urban irrigation can modulate local hydrothermal conditions and mitigate urban heat island effects, its impact on moist heat stress (MHS) is poorly understood. Employing the Weather Research and Forecasting Single-Layer Urban Canopy Model (WRF-SLUCM), we evaluated the effect of urban irrigation on the MHS in Beijing, China, and found that the updated initial soil moisture (SM) field improved the simulation of temperature, relative humidity, and wind speed. Besides, urban irrigation reduced urban and rural MHS, and particularly reduced afternoon and evening MHS by up to 1.2 °C but increased morning MHS by up to 0.4 °C. In addition, the effect of different irrigation times on MHS showed that irrigation at 02 and 20 h increased urban and rural MHS, with the best cooling effect at 00 and 13 h, which reduced the MHS by up to 2.65 °C in urban areas and 0.71 °C in rural areas. The findings highlighted mechanistically the effect of urban irrigation on MHS and shed light on how to mitigate urban heat island effects on urban sustainable development.https://doi.org/10.1038/s41612-024-00585-6 |
| spellingShingle | Shuai Sun Qiang Zhang Chunxiang Shi Vijay P. Singh Tao Zhang Junxia Gu Gang Wang Wenhuan Wu Donghui Chen Jianmei Wu Urban irrigation reduces moist heat stress in Beijing, China npj Climate and Atmospheric Science |
| title | Urban irrigation reduces moist heat stress in Beijing, China |
| title_full | Urban irrigation reduces moist heat stress in Beijing, China |
| title_fullStr | Urban irrigation reduces moist heat stress in Beijing, China |
| title_full_unstemmed | Urban irrigation reduces moist heat stress in Beijing, China |
| title_short | Urban irrigation reduces moist heat stress in Beijing, China |
| title_sort | urban irrigation reduces moist heat stress in beijing china |
| url | https://doi.org/10.1038/s41612-024-00585-6 |
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