Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change Scenarios
Urban microclimate patterns can play a great role for the allocation and management of cooling and heating energy sources, urban design and architecture, and urban heat island control. Therefore, the present study intends to investigate the variability of spatial and temporal entropy of the Effectiv...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/21/1/13 |
| _version_ | 1811300111876096000 |
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| author | Abdolazim Ghanghermeh Gholamreza Roshan José A. Orosa Ángel M. Costa |
| author_facet | Abdolazim Ghanghermeh Gholamreza Roshan José A. Orosa Ángel M. Costa |
| author_sort | Abdolazim Ghanghermeh |
| collection | DOAJ |
| description | Urban microclimate patterns can play a great role for the allocation and management of cooling and heating energy sources, urban design and architecture, and urban heat island control. Therefore, the present study intends to investigate the variability of spatial and temporal entropy of the Effective Temperature index (ET) for the two basic periods (1971–2010) and the future (2011–2050) in Tehran to determine how the variability degree of the entropy values of the abovementioned bioclimatic would be, based on global warming and future climate change. ArcGIS software and geostatistical methods were used to show the Spatial and Temporal variations of the microclimate pattern in Tehran. However, due to global warming the temperature difference between the different areas of the study has declined, which is believed to reduce the abnormalities and more orderly between the data spatially and over time. It is observed that the lowest values of the Shannon entropy occurred in the last two decades, from 2030 to 2040, and the other in 2040–2050. Because, based on global warming, dominant areas have increased temperature, and the difference in temperature is reduced daily and the temperature difference between the zones of different areas is lower. The results of this study show a decrease in the coefficient of the Shannon entropy of effective temperature for future decades in Tehran. This can be due to the reduction of temperature differences between different regions. However, based on the urban-climate perspective, there is no positive view of this process. Because reducing the urban temperature difference means reducing the local pressure difference as well as reducing local winds. This is a factor that can effective, though limited, in the movement of stagnant urban air and reduction of thermal budget and thermal stress of the city. |
| first_indexed | 2024-04-13T06:46:26Z |
| format | Article |
| id | doaj.art-36821aa9453b4c6680313b0313e235f0 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-13T06:46:26Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-36821aa9453b4c6680313b0313e235f02022-12-22T02:57:34ZengMDPI AGEntropy1099-43002018-12-012111310.3390/e21010013e21010013Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change ScenariosAbdolazim Ghanghermeh0Gholamreza Roshan1José A. Orosa2Ángel M. Costa3Department of Geography, Golestan University, ShahidBeheshti, 49138-15759 Gorgan, IranDepartment of Geography, Golestan University, ShahidBeheshti, 49138-15759 Gorgan, IranDepartment of Navigation Science and Marine Engineering, Energy and Propulsion Research Group, University of A Coruña, Paseo de Ronda 51, 15011 A Coruña, Spain;<email>angel.costa@udc.es</email>Department of Navigation Science and Marine Engineering, Energy and Propulsion Research Group, University of A Coruña, Paseo de Ronda 51, 15011 A Coruña, Spain;<email>angel.costa@udc.es</email>Urban microclimate patterns can play a great role for the allocation and management of cooling and heating energy sources, urban design and architecture, and urban heat island control. Therefore, the present study intends to investigate the variability of spatial and temporal entropy of the Effective Temperature index (ET) for the two basic periods (1971–2010) and the future (2011–2050) in Tehran to determine how the variability degree of the entropy values of the abovementioned bioclimatic would be, based on global warming and future climate change. ArcGIS software and geostatistical methods were used to show the Spatial and Temporal variations of the microclimate pattern in Tehran. However, due to global warming the temperature difference between the different areas of the study has declined, which is believed to reduce the abnormalities and more orderly between the data spatially and over time. It is observed that the lowest values of the Shannon entropy occurred in the last two decades, from 2030 to 2040, and the other in 2040–2050. Because, based on global warming, dominant areas have increased temperature, and the difference in temperature is reduced daily and the temperature difference between the zones of different areas is lower. The results of this study show a decrease in the coefficient of the Shannon entropy of effective temperature for future decades in Tehran. This can be due to the reduction of temperature differences between different regions. However, based on the urban-climate perspective, there is no positive view of this process. Because reducing the urban temperature difference means reducing the local pressure difference as well as reducing local winds. This is a factor that can effective, though limited, in the movement of stagnant urban air and reduction of thermal budget and thermal stress of the city.http://www.mdpi.com/1099-4300/21/1/13global warmingclimatic modelingspatial analysisurban sprawlShannon entropy |
| spellingShingle | Abdolazim Ghanghermeh Gholamreza Roshan José A. Orosa Ángel M. Costa Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change Scenarios Entropy global warming climatic modeling spatial analysis urban sprawl Shannon entropy |
| title | Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change Scenarios |
| title_full | Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change Scenarios |
| title_fullStr | Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change Scenarios |
| title_full_unstemmed | Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change Scenarios |
| title_short | Analysis and Comparison of Spatial–Temporal Entropy Variability of Tehran City Microclimate Based on Climate Change Scenarios |
| title_sort | analysis and comparison of spatial temporal entropy variability of tehran city microclimate based on climate change scenarios |
| topic | global warming climatic modeling spatial analysis urban sprawl Shannon entropy |
| url | http://www.mdpi.com/1099-4300/21/1/13 |
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