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Urban ‘heat island’ in Moscow by satellite dataстатья
- Авторы: Lokoshchenko M.A., Sorokina E.A.
- Сборник: Proceedings of the 9th International Conference on Urban Climate (ICUC9) jointly with 12th Symposium on the Urban Environment, Toulouse, France, 20-24 July 2015
- Год издания: 2015
- Место издания: University of Toulouse Toulouse, France
- Первая страница: paper index: POSTER 11-7-3911378
- Аннотация: For the first time the urban ‘heat island’ (UHI) in Moscow has been studied by long-term data of ‘Aqua’ and ‘Terra’ satellites which are equipped by MODIS radiometers. The surface temperature spatial field has been investigated over Moscow region with a 1 km resolution. Totally 108 satellite images for the period from 2009 to 2013 which were received in cloudless conditions on late morning have been analyzed. The surface temperature average value inside real city margins has been compared with the one outside the city (at rural zone in Moscow region) for each separate image during this period. As a result, the urban ‘heat island’ average intensity by radiometer data has been received as +2.8 ˚C. It varied from –0.1 to +7.7 ˚C so that sometimes on late morning this parameter may be a bit negative. The annual course of the ‘heat island’ intensity in Moscow has a maximum in spring and in summer and a minimum in autumn. On late morning the air temperature on the 2 m level is in average a bit warmer than the surface one by satellite data, a mean difference between them is about 1 ˚C. Besides, the intensity of ‘cool islands’ in urban forests and parks has been separately estimated in the comparison with the non-green urban areas. It has been received that ‘cool islands’ mean-annual intensity is equal to –1.3 ˚C. The annual course of this intensity is characterized by maximum, i.e. the largest differences, during the vegetation period from April to September (in average –2.2 ˚C) and minimum from October to March (in average –0.4 ˚C).
- Добавил в систему: Локощенко Михаил Александрович