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논문 기본 정보

자료유형
학술저널
저자정보
Le, Thi Thu Ha (Hanoi University of Mining and Geology) Nguyen, Van Trung (Hanoi University of Mining and Geology) Pham, Thi Lan (Hanoi University of Mining and Geology) Tong, Thi Huyen Ai (Vietnam Academy of Science and Technology) La, Phu Hien (Thuyloi University)
저널정보
한국측량학회 한국측량학회지 한국측량학회지 제39권 제2호
발행연도
2021.4
수록면
113 - 122 (10page)

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초록· 키워드

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Urban expansion, particularly converting sub-urban areas to residential and commercial land use in metropolitan areas, has been considered as a significant signal of regional economic development. However, this results in urban climate change. One of the key impacts of rapid urbanization on the environment is the effect of UHI (Urban Heat Island). Understanding the effects of urban land cover change on UHI is crucial for improving the ecology and sustainability of cities. This research reports an application of remote sensing data, GIS (Geographic Information Systems) for assessing effects of urban land cover change on the LST (Land Surface Temperature) and heat budget components in Ho Chi Minh City, where is one of the fastest urbanizing region of Vietnam. The change of urban land cover component and LST in the city was derived by using multi-temporal Landsat data for the period of 1998 - 2020. The analysis showed that, from 1998 to 2020 the city had been drastically urbanized into multiple directions, with the urban areas increasing from approximately 125.281 km² in 1998 to 162.6 km² in 2007, and 267.2 km² in 2020, respectively. The results of retrieved LST revealed the radiant temperature for 1998 ranging from 20.2ºC to 31.2ºC, while that for 2020 remarkably higher ranging from 22.1ºC to 42.3ºC. The results also revealed that given the same percentage of urban land cover components, vegetation area is more effective to reduce the value of LST, meanwhile the impervious surface is the most effective factor to increase the value of the LST.

목차

Abstract
1. Introduction
2. Study Area, Data Collection andMethodology
3. Results and Discussions
4. Conclusions
References

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