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Airborne and Terrestrial Observations of the Thermal Environment of Urban Areas Surrounding a High-Rise Building during the Japanese Winter.
- Source :
- Sensors (14248220); 1/15/2020, Vol. 20 Issue 2, p1-19, 19p
- Publication Year :
- 2020
-
Abstract
- We investigated the distribution of air temperature (T<subscript>a</subscript>) and the factors affecting it in low-rise areas surrounding an isolated high-rise building during the Japanese winter. The study site was the central part of a regional city in Japan (36°5 0 N, 140°120 E), lying north-east of the Tokyo metropolitan area. The daytime surface temperature (T<subscript>s</subscript>) in the shade is generally considered to be comparable to (T<subscript>a</subscript>); however, according to airborne remote sensing conducted in December 2009 where a multi-spectral scanner was installed on a fixed-wing aircraft, (T<subscript>s</subscript>) for pavements in the shade of a high-rise building was significantly lower than (T<subscript>a</subscript>) of sub-urban areas, indicating an influence of cold storage on (T<subscript>s</subscript>). Then, we conducted mobile observations using instruments (thermocouple, four component radiometer, and so on) installed on a bicycle in January 2016 to investigate the detailed distribution of (T<subscript>a</subscript>) and the factors affecting it. The results showed the (T<subscript>a</subscript>) over the pavements in the shade of the high-rise building was lower than the (T<subscript>a</subscript>) of sunlit areas in the same urban area by −2°C and lower than the (T<subscript>a</subscript>) of sub-urban areas by −1–1.5°C, although the advection effect was large due to strong winds around the building. In conclusion, a locally lower (T<subscript>a</subscript>) compared to the surrounding areas can develop during the day in winter, even in spaces that are open to areas beyond the canopy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 20
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Sensors (14248220)
- Publication Type :
- Academic Journal
- Accession number :
- 141552416
- Full Text :
- https://doi.org/10.3390/s20020517