Exploring the role of green and blue infrastructure in reducing temperature in Iskandar Malaysia using remote sensing approach

8th International Symposium of the Digital Earth

地球科学;计算机科学

Kanniah, K.D.^1 ; Sheikhi, A.^1 ; Kang, C.S.^1

Department of Geoinformation, Faculty of Geoinformation and Real Estate, Universiti Teknologi Malaysia, 81310 Johor, UTM Skudai, Malaysia^1

关键词: Environmental problems;    Green infrastructure;    Land surface temperature;    Reducing temperature;    Remote sensing approaches;    Special economic zones;    Surrounding temperature;    Vegetation density;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/18/1/012156/pdf
DOI  :  10.1088/1755-1315/18/1/012156

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Development of cities has led to various environmental problems as a consequence of non sustaibale town planning. One of the strategies to make cities a livable place and to achieve low levels of CO2emissions (low carbon cities or LCC) is the integration of the blue and green infrastructure into the development and planning of new urban areas. Iskandar Malaysia (IM) located in the southern part of Malaysia is a special economic zone that has major urban centres. The planning of these urban centres will incorporate LCC strategies to achieve a sustainable development. The role of green (plants) and blue bodies (lakes and rivers) in moderating temperature in IM have been investigated in the current study. A remotely sensed satellite imagery was used to calculate the vegetation density and land surface temperature (LST). The effect of lakes in cooling the surrounding temperature was also investigated. Results show that increasing vegetation density by 1% can decrease the LST by 0.09°C. As for the water bodies we found as the distance increased from the lake side the temperature also increased about 1.7°C and the reduction in air humidity is 9% as the distance increased to 100 meter away from the lake.