Understanding the influence of Covid-19 induced lockdown on urban thermal environment of Ranchi city, India
Bibliographic Data
| ID | 9849667 |
|---|---|
| Authors | Rituraj Neog (0000-0002-2358-9992, Gargaon College, Sivasagar, India, corresponding author) |
| Year | 2022 |
| Volume | 122 |
| Issue | 1 |
| Pages | 46-58 |
| Publication date | 2022-01-02 |
| Peer Reviewed | Yes |
| Open Access | No |
| Type | ARTICLE |
| Venue | Geografisk Tidsskrift-Danish Journal of Geography (JOURNAL) |
| Journal identifiers | ISSN: 0016-7223 • E-ISSN: 1903-2471 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/00167223.2022.2053999 |
| OpenAlex | W4220784275 |
| Language | EN |
| Citations received | 1 |
| References cited | 38 |
The objective of the study is to understand the pattern of land surface temperature (LST) and normalized difference vegetation index (NDVI) developed in Ranchi city during Covid-19-induced lockdown (2020) and its comparison with previous years. The study incorporated Landsat 8 (Operational land imager) data from United States Geological Survey and air temperature and relative humidity data from power.larc.nasa.gov for the years 2017, 2019 and 2020. The results exposed a drastic change in the LST and NDVI pattern of the city. The mean LST of the city during April has declined from 39.80°C in 2017 to 32.38°C in 2020. Similarly, the mean LST of May also declined from 38.41°C in 2017 to 34.84°C in 2020. On the contrary, the city experienced an ascending growth of NDVI from 0.24 to 0.26 in April and May 2017 to 0.349 and 0.37 in 2020, respectively. Additionally, the city portrays declining air temperature with enhanced relative humidity. Ranchi city also exhibited relatively maximum area under ecologically excellent category in the year 2020 and reduced area under ecologically the worst category based on urban thermal field variance index. Thus, reduced temperature with augmented humidity and NDVI developed a healthy urban environment
Apparent temperature · Atmospheric sciences · Biology · Climate change · Coronavirus disease 2019 (COVID-19 · Geography · Humidity · Meteorology · Normalized Difference Vegetation Index · Physical geography · Relative humidity · Vegetation (pathology · Ecology · Environmental Science · Geology · Land Use and Ecosystem Services · Medicine · Urban Green Space and Health · Urban Heat Island Mitigation
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On the relation between NDVI, fractional vegetation cover, and leaf area index
Estimation of land surface temperature–vegetation abundance relationship for urban heat island studies
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Urban Heat Island Analysis Using the Landsat TM Data and Aster Data
Improvement in ambient-air-quality reduced temperature during the Covid-19 lockdown period in India
| Unique citing works | 1 |
|---|---|
| Citations per year | 0,5 |
| Citation span | 2024 - 2024 (1) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 1 |