The urban cool island phenomenon in a high-rise high-density city and its mechanisms

X Yang, Y Li, Z Luo, PW Chan - International Journal of …, 2017 - centaur.reading.ac.uk
The urban heat island (UHI) phenomenon has been studied extensively, but there are
relatively fewer reports on the so-called urban cool island (UCI) phenomenon. We reveal
here that the UCI phenomenon exists in Hong Kong during the day, and is associated with
the UHI at night under all wind and cloud conditions. The possible mechanisms for the UCI
phenomenon in such a high-rise compact city have been discovered using a lumped urban
air temperature model. A new concept of urban cool island degree hours (UCIdh) to …

The urban cool island phenomenon in a high-rise high-density city and its mechanisms.

YXY Yang XinYan, LYG Li YuGuo, LZW Luo ZhiWen… - 2017 - cabidigitallibrary.org
The urban heat island (UHI) phenomenon has been studied extensively, but there are
relatively fewer reports on the so-called urban cool island (UCI) phenomenon. We reveal
here that the UCI phenomenon exists in Hong Kong during the day and is associated with
the UHI at night under all wind and cloud conditions. The possible mechanisms for the UCI
phenomenon in such a high-rise compact city have been discovered using a lumped urban
air temperature model. A new concept of urban cool island degree hours (UCIdh) to …
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