Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020
The influence of the COronaVIrus Disease 2019 (COVID-19) pandemic lockdown (the period of strict quarantine measures) in the spring of 2020 on the ‘Surface Urban Heat Island’ (SUHI) geographical phenomenon in Moscow has been studied. For this purpose, we used the measurements of the surface temperat...
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Lomonosov Moscow State University
2023-01-01
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| Series: | Geography, Environment, Sustainability |
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| Online Access: | https://ges.rgo.ru/jour/article/view/2729 |
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| author | Mikhail A. Lokoshchenko Eugeniya A. Enukova |
| author_facet | Mikhail A. Lokoshchenko Eugeniya A. Enukova |
| author_sort | Mikhail A. Lokoshchenko |
| collection | DOAJ |
| description | The influence of the COronaVIrus Disease 2019 (COVID-19) pandemic lockdown (the period of strict quarantine measures) in the spring of 2020 on the ‘Surface Urban Heat Island’ (SUHI) geographical phenomenon in Moscow has been studied. For this purpose, we used the measurements of the surface temperature TS made by Moderate Resolution Imaging Spectroradiometer (MODIS) radiometer installed on Terra and Aqua satellites. As a result, TS during the 2020 lockdown, both in the city and surrounding rural zone, was found lower than at the same calendar time in the previous 20 years due to the relatively cold spring. The SUHI intensity as the difference between TS inside Moscow and the surrounding rural zone around it during the lockdown was also lower than usual (on average in the previous 20 years), but this decrease is relatively small and nonsignificant. The Normalized Difference Vegetation Index (NDVI) in Moscow and Moscow region during the lockdown was close to its usual values, but the leaf area index (LAI) was significantly lower than its average values in the previous 20 years. Thus, the weakening of the SUHI during the lockdown in 2020 was caused mostly by lower heat loss due to transpiration in the rural zone. This was associated with the slowdown in vegetation development as a result of the cold spring. Besides, an additional possible reason was the reduction of human activity due to the collapse of many anthropogenic heat sources in the city. According to long-term MODIS data, the SUHI intensity in Moscow and the surface temperature in Moscow region, as well as the NDVI and LAI values, do not demonstrate statistically significant long-term trends in the spring season over the past 21 years, despite climate changes. In spring, during faster snow melting in cities, when it still persists in the rural zone, the SUHI intensity can be record high (up to 8 ºC). |
| format | Article |
| id | doaj-art-cc818e143e9a4d2fa62456227d7b0922 |
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| issn | 2071-9388 2542-1565 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Lomonosov Moscow State University |
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| series | Geography, Environment, Sustainability |
| spelling | doaj-art-cc818e143e9a4d2fa62456227d7b09222025-08-20T02:17:34ZengLomonosov Moscow State UniversityGeography, Environment, Sustainability2071-93882542-15652023-01-0115413414410.24057/2071-9388-2021-116643Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020Mikhail A. Lokoshchenko0Eugeniya A. Enukova1Lomonosov Moscow State University (MSU); Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences‘Dubna’ State UniversityThe influence of the COronaVIrus Disease 2019 (COVID-19) pandemic lockdown (the period of strict quarantine measures) in the spring of 2020 on the ‘Surface Urban Heat Island’ (SUHI) geographical phenomenon in Moscow has been studied. For this purpose, we used the measurements of the surface temperature TS made by Moderate Resolution Imaging Spectroradiometer (MODIS) radiometer installed on Terra and Aqua satellites. As a result, TS during the 2020 lockdown, both in the city and surrounding rural zone, was found lower than at the same calendar time in the previous 20 years due to the relatively cold spring. The SUHI intensity as the difference between TS inside Moscow and the surrounding rural zone around it during the lockdown was also lower than usual (on average in the previous 20 years), but this decrease is relatively small and nonsignificant. The Normalized Difference Vegetation Index (NDVI) in Moscow and Moscow region during the lockdown was close to its usual values, but the leaf area index (LAI) was significantly lower than its average values in the previous 20 years. Thus, the weakening of the SUHI during the lockdown in 2020 was caused mostly by lower heat loss due to transpiration in the rural zone. This was associated with the slowdown in vegetation development as a result of the cold spring. Besides, an additional possible reason was the reduction of human activity due to the collapse of many anthropogenic heat sources in the city. According to long-term MODIS data, the SUHI intensity in Moscow and the surface temperature in Moscow region, as well as the NDVI and LAI values, do not demonstrate statistically significant long-term trends in the spring season over the past 21 years, despite climate changes. In spring, during faster snow melting in cities, when it still persists in the rural zone, the SUHI intensity can be record high (up to 8 ºC).https://ges.rgo.ru/jour/article/view/2729satellite datasurface temperaturesurface urban heat islandsuhi intensitycovid-19 pandemic lockdownndvilaivegetationsnow cover |
| spellingShingle | Mikhail A. Lokoshchenko Eugeniya A. Enukova Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020 Geography, Environment, Sustainability satellite data surface temperature surface urban heat island suhi intensity covid-19 pandemic lockdown ndvi lai vegetation snow cover |
| title | Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020 |
| title_full | Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020 |
| title_fullStr | Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020 |
| title_full_unstemmed | Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020 |
| title_short | Surface Urban Heat Island In Moscow During The COID-19 Pandemic Lockdown In 2020 |
| title_sort | surface urban heat island in moscow during the coid 19 pandemic lockdown in 2020 |
| topic | satellite data surface temperature surface urban heat island suhi intensity covid-19 pandemic lockdown ndvi lai vegetation snow cover |
| url | https://ges.rgo.ru/jour/article/view/2729 |
| work_keys_str_mv | AT mikhailalokoshchenko surfaceurbanheatislandinmoscowduringthecoid19pandemiclockdownin2020 AT eugeniyaaenukova surfaceurbanheatislandinmoscowduringthecoid19pandemiclockdownin2020 |