scholarly journals Spatial-temporal Analysis of the Urban Heat Island of a Subtropical City by Using Mobile Measurement

2016 ◽  
Vol 169 ◽  
pp. 55-63 ◽  
Author(s):  
Lin Liu ◽  
Jing Liu ◽  
Yaoyu Lin
Keyword(s):  
Urban Heat Island ◽  
Temporal Analysis ◽  
Heat Island ◽  
Urban Heat ◽  
Mobile Measurement ◽  
Spatial Temporal Analysis

scholarly journals Analysis of Urban Morphological Effect on the Microclimate of the Urban Residential Area of Kampung Baru in Kuala Lumpur Using a Geospatial Approach

2020 ◽  
Vol 12 (18) ◽  
pp. 7301
Author(s):  
Sheikh Ahmad Zaki ◽  
Nor Suhada Azid ◽  
Mohd Fairuz Shahidan ◽  
Mohamad Zaki Hassan ◽  
Mohd Yusof Md Daud ◽  
...  
Keyword(s):  
Urban Heat Island ◽  
Tall Buildings ◽  
Temperature Pattern ◽  
Target Area ◽  
Heat Island ◽  
Kuala Lumpur ◽  
Morphological Effect ◽  
Building Height ◽  
Urban Heat ◽  
Mobile Measurement

As a Malay Agricultural Settlement established in 1900, Kampung Baru which is located in Kuala Lumpur, has become a subject of prolonged national interests in terms of economic, social, environment, and political issues along with the pressure of modern and future development. This study investigated the urban morphological impact of Kampung Baru on the intensity of urban heat island (UHI) by developing a smart geodatabase for urban climatic mapping. The database provided baseline data which was crucial to unveil the spatiotemporal characteristics of UHI in Kampung Baru. Determination of the urban heat island intensity (UHII) in Kampung Baru was carried out through two approaches, mobile and fixed measurements. In a period of six days, the mobile measurement was conducted within the target area at night using a motorcycle equipped with the temperature and relative humidity data logger while the fixed measurement was conducted using the similar equipment installed at a school building in the area. Building height data were also collected while building footprints were digitized using a topographical map and the satellite image was used as the base map. To estimate the UHII, the reference data for rural temperature was obtained from the Malaysian Meteorological Department (MMD). All of the data were analyzed using ArcGIS to portray the temperature pattern in the study area. The analysis revealed the presence of UHI effect in Kampung Baru at the average building height of six to ten metres. The results of the fixed measurement showed an island-like local maximum in the study area with the average and maximum UHII values of 4.4 °C and 6.0 °C, respectively. The results from the mobile measurement also showed that the highest temperature was recorded in Kampung Baru rather than in the surrounding areas of different land-use types throughout the observation days. The spatial temperature distribution in the study area also showed that the most affected part was the south-west of Kampung Baru which is surrounded by tall buildings. The findings of this study could be utilized in the planning of new development in the city of Kuala Lumpur.

Spatio-Temporal Analysis of Urban Heat Island of Nantong City Based on TM/ETM+ Images

2012 ◽  
Vol 610-613 ◽  
pp. 3720-3723
Author(s):  
Feng Yun Gu ◽  
Xiao Feng Dong ◽  
Hong Quan Xie
Keyword(s):  
Urban Heat Island ◽  
Central City ◽  
Temporal Distribution ◽  
Temporal Analysis ◽  
Area Ratio ◽  
Direct Result ◽  
Heat Island ◽  
Distribution Diagram ◽  
Urban Heat ◽  
Temperature Area

A direct result of the urban heat island's intensification of Nantong is the accelerated process of urbanization in recent years. In order to analyze spatial and temporal distribution of urban heat island of Nantong City, adiative transfer equation was used to inversion surface temperature of Nantong based on 2001 and 2005TM / ETM + remote sensing images. The results are divided into six grades and temperature level distribution diagram and temperature area ratio statistics were outputted. By the analysis of temperature rating maps and temperature area ratio statistics, it showed that the heat island effect mainly occure in the central city of Nantong from 2001 to 2005. The range of heat island increase and the intensity also increase. The heat island grows in the central urban and the intensity of heat island of other parts is from weak to strong.

Spatial-Temporal Analysis on Summer Heat Island Effect Based on Tests - With the Southeastern of Wuhan as an Example

2013 ◽  
Vol 361-363 ◽  
pp. 499-503
Author(s):  
Xue Song Li ◽  
Xin Yu Tao ◽  
Su Li Zhang
Keyword(s):  
Central Area ◽  
Surface Characteristics ◽  
Temporal Analysis ◽  
Urban Morphology ◽  
Heat Island ◽  
Island Effect ◽  
Depth Analysis ◽  
Urban Heat ◽  
Data Collation ◽  
Spatial Temporal Analysis

The urban heat island phenomenon is one of the important problems faced by the metropolitan environment in hot-summer and cold-winter areas. In order to conduct truthful and in-depth analysis on this phenomenon, this study covers temperature data acquisition and a series of data collation and analysis conducted with the mobile testing method, more actually reflects the heat island spatial-temporal changes from the central area of Wuhan in Summer to the urban fringe, analyzes the urban morphology, urban underlying surface characteristics, and impacts of human factors and microclimate, and explores the feasible quantification basis for urban design and planning.

Spatial and temporal analysis of urban heat island using Landsat satellite images

2021 ◽  
Author(s):  
Atiyeh Amindin ◽  
Soheila Pouyan ◽  
Hamid Reza Pourghasemi ◽  
Saleh Yousefi ◽  
John P. Tiefenbacher
Keyword(s):  
Urban Heat Island ◽  
Satellite Images ◽  
Temporal Analysis ◽  
Heat Island ◽  
Spatial And Temporal Analysis ◽  
Urban Heat ◽  
Landsat Satellite

Spatial-Temporal Analysis on Winter Heat Island Effect Based on Tests - With the Southeastern of Wuhan as an Example

2013 ◽  
Vol 409-410 ◽  
pp. 612-616
Author(s):  
Xue Song Li ◽  
Hong Yi Li ◽  
Su Li Zhang
Keyword(s):  
Central Area ◽  
Surface Characteristics ◽  
Temporal Analysis ◽  
Urban Morphology ◽  
Heat Island ◽  
Island Effect ◽  
Depth Analysis ◽  
Urban Heat ◽  
Data Collation ◽  
Spatial Temporal Analysis

The urban heat island phenomenon is one of the important problems faced by the metropolitan environment in hot-summer and cold-winter areas. In order to conduct truthful and in-depth analysis on this phenomenon, this study covers temperature data acquisition and a series of data collation and analysis conducted with the mobile testing method, more actually reflects the heat island spatial-temporal changes from the central area of Wuhan in Winter to the urban fringe, analyzes the urban morphology, urban underlying surface characteristics, and impacts of human factors and microclimate, and explores the feasible quantification basis for urban design and planning.

scholarly journals Urban Heat Island Formation in Greater Cairo: Spatio-Temporal Analysis of Daytime and Nighttime Land Surface Temperatures along the Urban–Rural Gradient

2021 ◽  
Vol 13 (7) ◽  
pp. 1396
Author(s):  
Darshana Athukorala ◽  
Yuji Murayama
Keyword(s):  
Urban Heat Island ◽  
Land Surface ◽  
Gradient Analysis ◽  
Temporal Analysis ◽  
Heat Island ◽  
Island Effect ◽  
Greater Cairo ◽  
Urban Rural ◽  
Urban Heat ◽  
Spatio Temporal

An urban heat island (UHI) is a significant anthropogenic modification of urban land surfaces, and its geospatial pattern can increase the intensity of the heatwave effects. The complex mechanisms and interactivity of the land surface temperature in urban areas are still being examined. The urban–rural gradient analysis serves as a unique natural opportunity to identify and mitigate ecological worsening. Using Landsat Thematic Mapper (TM), Operational Land Imager/Thermal Infrared Sensor (OLI/TIRS) and Moderate Resolution Imaging Spectroradiometer (MODIS), Land Surface Temperature (LST) data in 2000, 2010, and 2019, we examined the spatial difference in daytime and nighttime LST trends along the urban–rural gradient in Greater Cairo, Egypt. Google Earth Engine (GEE) and machine learning techniques were employed to conduct the spatio-temporal analysis. The analysis results revealed that impervious surfaces (ISs) increased significantly from 564.14 km2 in 2000 to 869.35 km2 in 2019 in Greater Cairo. The size, aggregation, and complexity of patches of ISs, green space (GS), and bare land (BL) showed a strong correlation with the mean LST. The average urban–rural difference in mean LST was −3.59 °C in the daytime and 2.33 °C in the nighttime. In the daytime, Greater Cairo displayed the cool island effect, but in the nighttime, it showed the urban heat island effect. We estimated that dynamic human activities based on the urban structure are causing the spatial difference in the LST distribution between the day and night. The urban–rural gradient analysis indicated that this phenomenon became stronger from 2000 to 2019. Considering the drastic changes in the spatial patterns and the density of IS, GS, and BL, urban planners are urged to take immediate steps to mitigate increasing surface UHI; otherwise, urban dwellers might suffer from the severe effects of heatwaves.

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