利用地球观测系统评价城市地表温度的日变化

Q1 Social Sciences

Journal of Environmental Assessment Policy and Management Pub Date : 2022-12-15 DOI:10.1142/s1464333222400014

D. Rana, Maya Kumari, D. Kumar, N. Jaiswal

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引用次数: 0

摘要

快速的城市化导致了全球特大城市的“热岛”问题。工业化推动了印度城市城市化的发展。这项工作测量和表征了艾哈迈达巴德的热岛变化(印度)。该研究使用MODIS传感器在过去三年夏季的两次卫星通道来评估城市热岛强度(UHII)。哨兵2b记录用于创建土地使用地图。该研究考虑了土地利用模式对夏季流感日波动的影响。正在分析地表温度的日变化。地点和土地利用土地覆盖模式影响全民健康调查。卫星观测显示白天的地表温度值比夜间大，但UHII在夜间更强。城市全民健康保险比农村全民健康保险强。植被覆盖面积降低是UHII发展的关键原因之一，这可以从该地区归一化植被指数(NDVI)值中看出。

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Evaluation of Diurnal Variations in Urban Surface Temperature with Earth Observations System

Rapid urbanisation causes the ‘heat island’ problem in megacities worldwide. The industrialisation has fuelled the increase in the urbanisation in Indian cities. This work measures and characterises Ahmedabad’s heat island variations (India). The study uses two satellite passes of the MODIS sensor over the summer for the last three years to assess urban heat island intensity (UHII). Sentinel-2B records are used to create a land-use map. The study considers the impact of land-use patterns on summer UHII diurnal fluctuations. Daily diurnal changes in land surface temperature (LST) are being analysed. Locations and land-use land-cover patterns affect UHII. Satellite observations show greater LST values during the day than at night, however, UHII is stronger at night. Urban UHII is stronger rural UHII. Lower vegetation cover area is one of the key causes of UHII development, as seen in the region’s Normalized Difference Vegetation Index (NDVI) values.

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来源期刊

Journal of Environmental Assessment Policy and Management Social Sciences-Geography, Planning and Development

CiteScore

7.00

自引率

0.00%

发文量

期刊介绍： The Journal of Environmental Assessment Policy and Management is an interdisciplinary, peer reviewed, international journal covering policy and decision-making relating to environmental assessment (EA) in the broadest sense. Uniquely, its specific aim is to explore the horizontal interactions between assessment and aspects of environmental management (not just the vertical interactions within the broad field of impact assessment) and thereby to identify comprehensive approaches to environmental improvement involving both qualitative and quantitative information. As the concepts associated with sustainable development mature, links between environmental assessment and management systems become all the more essential.