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| Investigating the Effect of Lockdown During COVID-19 on Land Surface Temperature: Study of Dehradun City, India | |
| Maithani, Sandeep1; Nautiyal, Garima2; Sharma, Archana2 | |
| 2020-09 | |
| 发表期刊 | JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
 |
| ISSN | 0255-660X |
| EISSN | 0974-3006 |
| 摘要 | Urban environment imposes challenges due to its dynamics and thermodynamic characteristics of the built environment. The present study aims to study the effect of lockdown during COVID-19 on the spatio-temporal land surface temperature (LST) patterns in Dehradun city. The TIRS sensor data of 14 April 2020 (post-lockdown), 28 April 2019, 25 April 2018 and 08 May 2017 were downloaded, and LST was retrieved using radiative transfer equation. The wardwise change in LST, urban hot spots and thermal comfort was studied as a function of built-up density. It was observed that there was an overall decrease in LST values in Dehradun city in post-COVID lockdown period. Wards with high built-up density had minimum decrease in LST; on the contrary, wards with large proportion of open spaces and having low, medium built-up density had the maximum decrease in LST. Hot spot analysis was carried out using Getis Ord GI* statistic, and the level of thermal comfort was found using the urban thermal field variance index. It was observed that there was an increase in number of hot spots accompanied by a decrease in thermal comfort level post-lockdown. The methodology proposed in the present study can be applied to other Indian cities which exhibit similar growth patterns and will provide a tool for rational decision making. |
| 关键词 | Land surface temperature Thermal infrared sensor Radiative transfer equation Hot spot Land surface emissivity Urban thermal field variance index |
| DOI | 10.1007/s12524-020-01157-w |
| WOS关键词 | DIFFERENCE VEGETATION INDEX ; URBAN HEAT ISLANDS ; EMISSIVITY RETRIEVAL ; WINDOW ALGORITHM ; SATELLITE DATA ; IMPACT ; COVER ; AREA ; ENVIRONMENT ; ELEVATION |
| WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing |
| WOS类目 | Environmental Sciences ; Remote Sensing |
| 出版者 | SPRINGER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 专题 | 新冠肺炎 循证社会科学证据集成 |
| 作者单位 | 1.Indian Inst Remote Sensing; 2.Doon Univ |
| 推荐引用方式 GB/T 7714 | Maithani, Sandeep,Nautiyal, Garima,Sharma, Archana. Investigating the Effect of Lockdown During COVID-19 on Land Surface Temperature: Study of Dehradun City, India[J]. JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING,2020. |
| APA | Maithani, Sandeep,Nautiyal, Garima,&Sharma, Archana.(2020).Investigating the Effect of Lockdown During COVID-19 on Land Surface Temperature: Study of Dehradun City, India.JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING. |
| MLA | Maithani, Sandeep,et al."Investigating the Effect of Lockdown During COVID-19 on Land Surface Temperature: Study of Dehradun City, India".JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING (2020). |
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