Correlation and Monitoring of Land Surface Temperature, Urban Heat Island with Land use-land cover of Dhaka City using Satellite imageries

Mia, Md. Bodruddoza; Bhattacharya, Rahul; Woobaidullah, A. S. M.

doi:10.20431/2454-8685.0304002

Cited by 12 publications

(8 citation statements)

References 21 publications

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“…Previous literature on LULC changes and LST was helpful to conduct the study and to compare the outcome of this study. The increasing trend of built-up and bare lands and decreasing trend of vegetation and water bodies have been found in this research, which is consistent with previous studies (Ahmed et al 2013;Dewan and Yamaguchi 2009;Mia et al 2017). Ahmed et al (2013) reported that the urban area increased from 15.68 to 36.91% while vegetation decreased from 19.97 to 8.53% in Dhaka city since 1989-2009.…”

Section: Discussionsupporting

confidence: 92%

Impact of Land Cover Changes on Land Surface Temperature and Human Thermal Comfort in Dhaka City of Bangladesh

et al. 2021

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Urbanization leads to the construction of various urban infrastructures in the city area for residency, transportation, industry, and other purposes, which causes major land use change. Consequently, it substantially affects Land Surface Temperature (LST) by unbalancing the surface energy budget. Higher LST in city areas decreases human thermal comfort for the city dwellers and affects the urban environment and ecosystem. Therefore, a comprehensive investigation is needed to evaluate the impact of land use change on the LST. Remote Sensing (RS) and Geographic Information System (GIS) techniques were used for the detailed investigation. RS data for the years 1993, 2007 and 2020 during summer (March–May) in Dhaka city were used to prepare land cover maps, analyze LST, generate hazard maps and relate the land cover change with LST by using GIS. The results show that the built-up area in Dhaka city increased by 67% from 1993 to 2020 by replacing lowland mainly, followed by vegetation, bare soil and water bodies. LSTs found in the study area were ranged from 23.26 to 39.94 °C, 23.69 to 43.35 °C and 24.44 to 44.58 °C for the years 1993, 2007 and 2020, respectively. The increases of spatially distributed maximum and mean LST were found 4.62 °C and 6.43 °C, respectively, for the study period of 27 years while the change in minimum LST was not substantial. LST increased by around 0.24 °C per year and human thermal discomfort shifted from moderate to strong heat stress for the total study period due to the increase of built-up and bare lands. This study also shows that normalized difference vegetation index (NDVI) and normalized difference water index (NDWI) were negatively correlated with LST while normalized difference built-up Index (NDBI) and normalized difference built-up Index (NDBAI) were positively correlated with LST. The methodology developed in this study can be adapted to other cities around the globe.

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Section: Discussionsupporting

confidence: 92%

Impact of Land Cover Changes on Land Surface Temperature and Human Thermal Comfort in Dhaka City of Bangladesh

et al. 2021

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“…Dhaka (11.7%) and Karachi (3.2%) demonstrated relatively small percentages of green spaces. Dhaka's green spaces have been continuously decreasing due to the rapid urban development [34], which has also resulted in increasing the LST levels and the UHI [87,88].…”

Section: Spatial Patterns Of Lulcmentioning

confidence: 99%

“…Decreasing urban green spaces: Past studies have shown that rapid urban development caused a decline in the green spaces in all four cities, namely, Colombo [81], Mumbai [17], Karachi [94], and Dhaka [87]. The green spaces of all four cities are becoming more vulnerable to conversion into built-up lands in the future.…”

Section: Urbanization Related Issues and Future Challengesmentioning

confidence: 99%

Spatial Analysis of Urbanization Patterns in Four Rapidly Growing South Asian Cities Using Sentinel-2 Data

et al. 2021

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The rapid and dominant urbanization in Asian cities has fueled concerns regarding the local and global efforts toward urban sustainability. Specifically, South Asian cities have been a topical issue concerning ecological and environmental threats due to their unplanned and haphazard urban development. However, comparative urbanization studies in South Asian cities remain uncommon. Therefore, in this study, we sought to comparatively examine the land use and land cover (LULC) dynamics and to detect the urbanization patterns of four rapidly developing South Asian lowland cities: Mumbai (India), Colombo (Sri Lanka), Karachi (Pakistan), and Dhaka (Bangladesh). Sentinel-2 (10 m) data and various geospatial approaches, including urban–rural gradient and grid-based methods, statistics, and urban landscape metric techniques, were used to facilitate the analysis. The study revealed that Mumbai, Karachi, and Dhaka had larger built-up landscapes compared to Colombo. Mumbai had the highest percentage of green spaces, followed by Colombo. Dhaka and Karachi had relatively small percentages of green spaces. Colombo and Dhaka had more croplands, which consistently increased along the urban–rural gradient compared to Mumbai and Karachi. Karachi showed that the only major land use was built-up, while most of the areas were left as open lands. On the other hand, Colombo’s urban setup was more fragmented than the other three cities. Mumbai and Karachi had larger patches of urban footprints compared to Colombo and Dhaka. Thus, this study provides vital information on the past land utilization priorities in the four cities, and comparatively proffers guidance on certain critical areas of focus for local, regional, and global future sustainable urban planning.

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“…al., 2015;Weier & Herring, 2000). The skin temperature of the earth surface, which can be measured from ground and satellite data, have great influence on physical, biological and chemical process like heat and energy exchange between the surface and the atmosphere, can be demarcated as land surface temperature (LST) (Mia, Bhattacharya & Woobaidullah, 2017;Paruelo, Epstein, Lauenroth & Burke, 1997). Song et al, (2018) have featured other studies to analyze the relationship between the LST and NDVI.…”

Section: Introductionmentioning

confidence: 99%

“…For instances, the first group of studies examined the role of geospatial tools in broad perspective (Anandababu, Purushothaman & Suresh Babu, 2018;Avdan & Jovanoska, 2016;Grover & Singh, 2015;Guha & Govil, 2020;Li et al, 2015;Saha, Paul, Gupta & Saha, 2016;Song et al, 2018;Tran et al, 2017). The second group of studies (Islam et al, 2019;Mia et al, 2017;Mondal & Uddin, 2018;Shimu et al, 2019;Uddin & Mondal, 2020) explored the factors that affects the land surface elements in city/regional territory. Very few studies address the monitoring issues from very micro unit often in ward boundary setting.…”

Section: Introductionmentioning

confidence: 99%

Geospatial Monitoring on Land Surface Temperature and Vegetation Dynamics: A Case of a City Area in Khulna, Bangladesh

Haque

Khanam

Nanjiba

2020

TUR

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Land surface temperature and vegetation cover are two important parameters to evaluate the climate change and environmental condition. The current study is carried out in respect of monitoring the changing phenomena of climate and environment. The area selected to conduct the study was ward number 1, 2 and 3 of Khulna City Corporation), from the third largest city of Bangladesh. This study is corresponding through the calculation of Land Surface Temperature (LST) and Normalized Differential Vegetation Index (NDVI) for two different years, 2010 and 2018. LST and NDVI are observed to realize the association between surface temperature and amount of vegetation. With the help of ArcGIS 10.5, LST and NDVI calculations are done using Landsat 5 Thermal Mapper, Landsat 8 Operational Land Imager and Thermal Infrared Sensor images (for 2010 and 2018, respectively) collected from USGS Earth Explorer. The findings of the study specify that the highest temperature in 2018 is 32.5˚C in ward 2 and in 2010 it was 27.5˚C in ward 3, though the overall vegetation amount decreased in 2018, About 18, 900 square meter of very low canopy area has increased in ward 3 from the period of 2010 to 2018 and in the same time 35, 100 square meter of low canopy area has been decreased for the overall study area. However, parts of the study area of ward no. 3 had faced a significant increase in vegetation cover which is the cause of low temperature compared to ward 1 and 2 in 2018.

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Correlation and Monitoring of Land Surface Temperature, Urban Heat Island with Land use-land cover of Dhaka City using Satellite imageries

Abstract: Dhaka city has been expanding rapidly by urbanization process to meet up the needs for increasing population in

Cited by 12 publications

References 21 publications

Impact of Land Cover Changes on Land Surface Temperature and Human Thermal Comfort in Dhaka City of Bangladesh

Impact of Land Cover Changes on Land Surface Temperature and Human Thermal Comfort in Dhaka City of Bangladesh

Spatial Analysis of Urbanization Patterns in Four Rapidly Growing South Asian Cities Using Sentinel-2 Data

Geospatial Monitoring on Land Surface Temperature and Vegetation Dynamics: A Case of a City Area in Khulna, Bangladesh

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