Time evolution of an urban heat island from high-density observations in Kyoto city

Isao Iizawa; Kazuhiro Umetani; Aya Ito; Arata Yajima; Kosaku Ono; Naoki Amemura; Masanori Onishi; Satoshi Sakai

doi:10.2151/sola.2016-011

Time evolution of an urban heat island from high-density observations in Kyoto city

Isao Iizawa, Kazuhiro Umetani, Aya Ito, Arata Yajima, Kosaku Ono, Naoki Amemura, Masanori Onishi, Satoshi Sakai

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Detailed observations of temperature evolution are required to clarify the mechanism of the nocturnal evolution of urban heat island. We conducted spatial and temporal high-density observation of temperature and longwave radiation in Kyoto City, Japan. The results suggest that the time evolution associated with temperature phase shift is one type of urban heat island evolution. Moreover, the phase shift appears to be closely related to a change in wind direction. Two phases, before and after the phase shift, are suggested to be controlled by two different mechanisms: radiative cooling and advection.

Original language	English
Pages (from-to)	51-54
Number of pages	4
Journal	Scientific Online Letters on the Atmosphere
Volume	12
Issue number	1
DOIs	https://doi.org/10.2151/sola.2016-011
Publication status	Published - 2016

ASJC Scopus subject areas

Atmospheric Science

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title = "Time evolution of an urban heat island from high-density observations in Kyoto city",

abstract = "Detailed observations of temperature evolution are required to clarify the mechanism of the nocturnal evolution of urban heat island. We conducted spatial and temporal high-density observation of temperature and longwave radiation in Kyoto City, Japan. The results suggest that the time evolution associated with temperature phase shift is one type of urban heat island evolution. Moreover, the phase shift appears to be closely related to a change in wind direction. Two phases, before and after the phase shift, are suggested to be controlled by two different mechanisms: radiative cooling and advection.",

author = "Isao Iizawa and Kazuhiro Umetani and Aya Ito and Arata Yajima and Kosaku Ono and Naoki Amemura and Masanori Onishi and Satoshi Sakai",

note = "Funding Information: This study was supported by JSPS KAKENHI Grant Numbers 14022227, 15020234 and 17011043. Publisher Copyright: {\textcopyright} 2016, the Meteorological Society of Japan.",

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AU - Iizawa, Isao

AU - Umetani, Kazuhiro

AU - Ito, Aya

AU - Yajima, Arata

AU - Ono, Kosaku

AU - Amemura, Naoki

AU - Onishi, Masanori

AU - Sakai, Satoshi

PY - 2016

Y1 - 2016

N2 - Detailed observations of temperature evolution are required to clarify the mechanism of the nocturnal evolution of urban heat island. We conducted spatial and temporal high-density observation of temperature and longwave radiation in Kyoto City, Japan. The results suggest that the time evolution associated with temperature phase shift is one type of urban heat island evolution. Moreover, the phase shift appears to be closely related to a change in wind direction. Two phases, before and after the phase shift, are suggested to be controlled by two different mechanisms: radiative cooling and advection.

AB - Detailed observations of temperature evolution are required to clarify the mechanism of the nocturnal evolution of urban heat island. We conducted spatial and temporal high-density observation of temperature and longwave radiation in Kyoto City, Japan. The results suggest that the time evolution associated with temperature phase shift is one type of urban heat island evolution. Moreover, the phase shift appears to be closely related to a change in wind direction. Two phases, before and after the phase shift, are suggested to be controlled by two different mechanisms: radiative cooling and advection.

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Time evolution of an urban heat island from high-density observations in Kyoto city

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