Spatiotemporal shifts in thermal climate in responses to urban cover changes: a-case analysis of major cities in Punjab, Pakistan | |
Dilawar, Adil2; Chen, Baozhang1,2,3,4; Trisurat, Yongyut5; Tuankrua, Venus5; Arshad, Arfan1,6,7; Hussain, Yawar8; Measho, Simon1,2; Guo, Lifeng1,2; Kayiranga, Alphonse1,2; Zhang, Huifang1,2 | |
刊名 | GEOMATICS NATURAL HAZARDS & RISK |
2021 | |
卷号 | 12期号:1页码:763-793 |
关键词 | LULC thermal heat LST surface urban heat island intensity (SUHII) |
ISSN号 | 1947-5705 |
DOI | 10.1080/19475705.2021.1890235 |
通讯作者 | Chen, Baozhang(baozhang.chen@igsnrr.ac.cn) |
英文摘要 | This study investigates the relationship of urban thermal environment (UTE) with various influential factors as well as ecological conditions. The relation between LST and land use and land cover (LULC) changes was explored in terms of remote-sensing (RS) based indices; heat effect contribution index (HECI), Urban thermal field variance index (UTFVI), Surface urban heat island intensity (SUHII), Normal Difference Built-up Index (NDBI), and Normal Difference Vegetation Index (NDVI). LULC maps were classified using the unsupervised classification technique and made error matrix to determine the accuracy. Results revealed that the vegetated area in Faisalabad decreased by 230 km(2) due to an expansion in the urban area of 124-320 km(2) during the period 1992-2014. An average LST in the rural buffers is increasing rapidly as compare to urban buffer and varied over the eight years with a range of 0.68-2.57 (degrees C). After 2007, SUHII's linear trend was negative because rural temperatures were still rising. Based on HECI, we found that urban expansion mainly led to increase in LST. UTFVI has shown poor ecological conditions in all urban buffers. In addition, there is a positive correlation between LST and NDBI, while NDVI indicates a negative correlation with LST. |
资助项目 | National Key R&D Program of China[2017YFC0503904] ; National Key R&D Program of China[2018YFA0606001] ; National Key R&D Program of China[2017YFA0604301] ; National Key R&D Program of China[2017YFA0604302] ; National Key R&D Program of China[41771114] ; National Key R&D Program of China[41271116] ; National Natural Science Foundation of China[O88RA901YA] ; State Key Laboratory of Resources and Environment Information System |
WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
语种 | 英语 |
出版者 | TAYLOR & FRANCIS LTD |
WOS记录号 | WOS:000627802000001 |
资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; State Key Laboratory of Resources and Environment Information System |
内容类型 | 期刊论文 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/162124] |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Chen, Baozhang |
作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing, Jiangsu, Peoples R China 4.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Peoples R China 5.Kasetsart Univ, Fac Forestry, Bangkok, Thailand 6.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China 7.Univ Agr Faisalabad, Fac Agr Engn, Dept Irrigat & Drainage, Faisalabad, Pakistan 8.Clemson Univ, Environm Engn & Earth Sci Dept, Clemson, SC USA 9.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin, Peoples R China |
推荐引用方式 GB/T 7714 | Dilawar, Adil,Chen, Baozhang,Trisurat, Yongyut,et al. Spatiotemporal shifts in thermal climate in responses to urban cover changes: a-case analysis of major cities in Punjab, Pakistan[J]. GEOMATICS NATURAL HAZARDS & RISK,2021,12(1):763-793. |
APA | Dilawar, Adil.,Chen, Baozhang.,Trisurat, Yongyut.,Tuankrua, Venus.,Arshad, Arfan.,...&Sun, Shaobo.(2021).Spatiotemporal shifts in thermal climate in responses to urban cover changes: a-case analysis of major cities in Punjab, Pakistan.GEOMATICS NATURAL HAZARDS & RISK,12(1),763-793. |
MLA | Dilawar, Adil,et al."Spatiotemporal shifts in thermal climate in responses to urban cover changes: a-case analysis of major cities in Punjab, Pakistan".GEOMATICS NATURAL HAZARDS & RISK 12.1(2021):763-793. |
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