Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021
The thermal status of northeast Indian cities has a great impact on the sustainability of these places. To meet the research gap in this area, a study is performed in Imphal city, India by investigating the relationship between land surface temperature (LST) and four spectral indices in the summer a...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-01-01
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| Series: | Geomatics, Natural Hazards & Risk |
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| Online Access: | http://dx.doi.org/10.1080/19475705.2021.2008023 |
| _version_ | 1819289329690738688 |
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| author | Arun Mondal Subhanil Guha Sananda Kundu |
| author_facet | Arun Mondal Subhanil Guha Sananda Kundu |
| author_sort | Arun Mondal |
| collection | DOAJ |
| description | The thermal status of northeast Indian cities has a great impact on the sustainability of these places. To meet the research gap in this area, a study is performed in Imphal city, India by investigating the relationship between land surface temperature (LST) and four spectral indices in the summer and winter seasons from 1991 to 2021. The mean LST of the city increases at >1% rate per decade in both seasons. The urban heat island (UHI) develops mostly along the central Imphal. A considerable difference in the mean LST between UHI and non-UHI in summer (3.05 °C in 1991, 2.46 °C in 2001, 3.13 °C in 2011, and 2.49 °C in 2021) and winter (2.01 °C in 1991, 2.63 °C in 2001, 2.64 °C in 2011, and 2.57 °C in 2021) reflects the continuous warming status of the city. Some urban hot spots develop inside the UHI of the central and north Imphal. The dynamic nature of the relationships of spectral indices with LST (moderate negative for MNDWI and NDVI, strongly positive for NDBI, and moderate negative for NDBaI) will be helpful for proper sustainable urban planning. Urban thermal field variance index map shows that the south Imphal attains more ecological comfort than the rest of the parts. |
| first_indexed | 2024-12-24T03:05:07Z |
| format | Article |
| id | doaj.art-5735eee50bfe4c118a2b1fac5390f5ab |
| institution | Directory Open Access Journal |
| issn | 1947-5705 1947-5713 |
| language | English |
| last_indexed | 2024-12-24T03:05:07Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geomatics, Natural Hazards & Risk |
| spelling | doaj.art-5735eee50bfe4c118a2b1fac5390f5ab2022-12-21T17:18:02ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132021-01-011213265328610.1080/19475705.2021.20080232008023Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021Arun Mondal0Subhanil Guha1Sananda Kundu2School of Earth, Ocean and Environment, University of South CarolinaDepartment of Applied Geology, National Institute of Technology RaipurDepartment of Geography, Manipur UniversityThe thermal status of northeast Indian cities has a great impact on the sustainability of these places. To meet the research gap in this area, a study is performed in Imphal city, India by investigating the relationship between land surface temperature (LST) and four spectral indices in the summer and winter seasons from 1991 to 2021. The mean LST of the city increases at >1% rate per decade in both seasons. The urban heat island (UHI) develops mostly along the central Imphal. A considerable difference in the mean LST between UHI and non-UHI in summer (3.05 °C in 1991, 2.46 °C in 2001, 3.13 °C in 2011, and 2.49 °C in 2021) and winter (2.01 °C in 1991, 2.63 °C in 2001, 2.64 °C in 2011, and 2.57 °C in 2021) reflects the continuous warming status of the city. Some urban hot spots develop inside the UHI of the central and north Imphal. The dynamic nature of the relationships of spectral indices with LST (moderate negative for MNDWI and NDVI, strongly positive for NDBI, and moderate negative for NDBaI) will be helpful for proper sustainable urban planning. Urban thermal field variance index map shows that the south Imphal attains more ecological comfort than the rest of the parts.http://dx.doi.org/10.1080/19475705.2021.2008023imphalland surface temperatureurban heat islandurban hot spotsurban thermal field variance index |
| spellingShingle | Arun Mondal Subhanil Guha Sananda Kundu Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021 Geomatics, Natural Hazards & Risk imphal land surface temperature urban heat island urban hot spots urban thermal field variance index |
| title | Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021 |
| title_full | Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021 |
| title_fullStr | Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021 |
| title_full_unstemmed | Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021 |
| title_short | Dynamic status of land surface temperature and spectral indices in Imphal city, India from 1991 to 2021 |
| title_sort | dynamic status of land surface temperature and spectral indices in imphal city india from 1991 to 2021 |
| topic | imphal land surface temperature urban heat island urban hot spots urban thermal field variance index |
| url | http://dx.doi.org/10.1080/19475705.2021.2008023 |
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