Influence of urban form on the cooling effect of a small urban river

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

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Influence of urban form on the cooling effect of a small urban river. / Park, Chae Yeon; Lee, Dong Kun; Asawa, Takashi; Murakami, Akinobu; Kim, Ho Gul; Lee, Myung-Kyoon; Lee, Ho Sang.

In: Landscape and Urban Planning, Vol. 183, 2019, p. 26-35.

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

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Park, Chae Yeon ; Lee, Dong Kun ; Asawa, Takashi ; Murakami, Akinobu ; Kim, Ho Gul ; Lee, Myung-Kyoon ; Lee, Ho Sang. / Influence of urban form on the cooling effect of a small urban river. In: Landscape and Urban Planning. 2019 ; Vol. 183. pp. 26-35.

Bibtex

@article{3fb502137e034033a480b9568fb789ca,
title = "Influence of urban form on the cooling effect of a small urban river",
abstract = "Urban warming due to increased urbanization is becoming a serious environmental problem, requiring urban planners to consider heat mitigation strategies that reduce urban air temperature. Urban rivers play an important role in reducing urban heat through evaporation and transfer of sensible heat, known as the river cooling effect (RCE). We used detailed field measurements to calculate the river cooling intensity (RCI) and river cooling distance (RCD) for the Cheonggye River in Seoul, Korea in order to determine the relationship between RCE and urban form at different times of day during summer. Our results showed that the Cheonggye River had a mean RCI of 0.46 °C and a mean RCD of 32.7 m at 2 p.m. and a mean RCI of 0.37 °C and a mean RCD of 37.2 m at 10 p.m. Spatial variations in RCE were negatively correlated with street width and mean building height at 2 p.m., indicating that narrower streets and lower buildings would improve the RCE. In addition, temporal variations in RCE were related to changes wind speed at similar humidity levels. Our results show that the urban form surrounding a river can affect the local RCE, suggesting that landscape and urban planners should consider urban form as a variable affecting urban heat and RCE.",
keywords = "Urban warming, Mobile survey, Cooling effect, Street width, Building height, Wind speed",
author = "Park, {Chae Yeon} and Lee, {Dong Kun} and Takashi Asawa and Akinobu Murakami and Kim, {Ho Gul} and Myung-Kyoon Lee and Lee, {Ho Sang}",
year = "2019",
doi = "10.1016/j.landurbplan.2018.10.022",
language = "English",
volume = "183",
pages = "26--35",
journal = "Landscape and Urban Planning",
issn = "0169-2046",
publisher = "Elsevier B.V.",

}

RIS

TY - JOUR

T1 - Influence of urban form on the cooling effect of a small urban river

AU - Park, Chae Yeon

AU - Lee, Dong Kun

AU - Asawa, Takashi

AU - Murakami, Akinobu

AU - Kim, Ho Gul

AU - Lee, Myung-Kyoon

AU - Lee, Ho Sang

PY - 2019

Y1 - 2019

N2 - Urban warming due to increased urbanization is becoming a serious environmental problem, requiring urban planners to consider heat mitigation strategies that reduce urban air temperature. Urban rivers play an important role in reducing urban heat through evaporation and transfer of sensible heat, known as the river cooling effect (RCE). We used detailed field measurements to calculate the river cooling intensity (RCI) and river cooling distance (RCD) for the Cheonggye River in Seoul, Korea in order to determine the relationship between RCE and urban form at different times of day during summer. Our results showed that the Cheonggye River had a mean RCI of 0.46 °C and a mean RCD of 32.7 m at 2 p.m. and a mean RCI of 0.37 °C and a mean RCD of 37.2 m at 10 p.m. Spatial variations in RCE were negatively correlated with street width and mean building height at 2 p.m., indicating that narrower streets and lower buildings would improve the RCE. In addition, temporal variations in RCE were related to changes wind speed at similar humidity levels. Our results show that the urban form surrounding a river can affect the local RCE, suggesting that landscape and urban planners should consider urban form as a variable affecting urban heat and RCE.

AB - Urban warming due to increased urbanization is becoming a serious environmental problem, requiring urban planners to consider heat mitigation strategies that reduce urban air temperature. Urban rivers play an important role in reducing urban heat through evaporation and transfer of sensible heat, known as the river cooling effect (RCE). We used detailed field measurements to calculate the river cooling intensity (RCI) and river cooling distance (RCD) for the Cheonggye River in Seoul, Korea in order to determine the relationship between RCE and urban form at different times of day during summer. Our results showed that the Cheonggye River had a mean RCI of 0.46 °C and a mean RCD of 32.7 m at 2 p.m. and a mean RCI of 0.37 °C and a mean RCD of 37.2 m at 10 p.m. Spatial variations in RCE were negatively correlated with street width and mean building height at 2 p.m., indicating that narrower streets and lower buildings would improve the RCE. In addition, temporal variations in RCE were related to changes wind speed at similar humidity levels. Our results show that the urban form surrounding a river can affect the local RCE, suggesting that landscape and urban planners should consider urban form as a variable affecting urban heat and RCE.

KW - Urban warming

KW - Mobile survey

KW - Cooling effect

KW - Street width

KW - Building height

KW - Wind speed

U2 - 10.1016/j.landurbplan.2018.10.022

DO - 10.1016/j.landurbplan.2018.10.022

M3 - Journal article

VL - 183

SP - 26

EP - 35

JO - Landscape and Urban Planning

JF - Landscape and Urban Planning

SN - 0169-2046

ER -