Changes in the Seoul metropolitan area urban heat environment with residential redevelopment

Je Woo Hong, Jinkyu Hong

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Since the Industrial Revolution, the geographical extent of cities has increased around the world. In particular, following three decades of rapid regional economic growth, many Asian megacities have emerged and continue to expand, resulting in inevitable short-term urban redevelopment. In this region, the microclimatic impacts of urban redevelopment have not been extensively investigated using long-term in situ observations. In this study, changes in surface sensible heat exchange, heat storage, and anthropogenic heat emissions that are due to urban residential redevelopment were quantified and analyzed on the basis of a 3-yr micrometeorological record from the Seoul, South Korea, metropolitan area. The results show that, following urban redevelopment of compact high-rise residential buildings, 1) the daily minimum air temperature near the ground surface increased by ~0.6 K; 2) the ratio between surface sensible heat and net radiation increased by from ~9% (summer) to 31% (winter), anthropogenic heat emissions increased by from 7.6 (summer) to 23.6 (spring) W m-2, and daily maximum heat storage ranged from 35.1 (spring) to 54.5 (summer) W m-2; and 3) there was a transition of local circulation with changes in the surface properties of heat sources and roughness.

Original languageEnglish
Pages (from-to)1091-1106
Number of pages16
JournalJournal of Applied Meteorology and Climatology
Volume55
Issue number5
DOIs
Publication statusPublished - 2016 May 1

Fingerprint

redevelopment
metropolitan area
summer
megacity
net radiation
heat source
roughness
economic growth
air temperature
winter
heat storage

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

@article{88fce6e5a4a34390be358ae7af8babac,
title = "Changes in the Seoul metropolitan area urban heat environment with residential redevelopment",
abstract = "Since the Industrial Revolution, the geographical extent of cities has increased around the world. In particular, following three decades of rapid regional economic growth, many Asian megacities have emerged and continue to expand, resulting in inevitable short-term urban redevelopment. In this region, the microclimatic impacts of urban redevelopment have not been extensively investigated using long-term in situ observations. In this study, changes in surface sensible heat exchange, heat storage, and anthropogenic heat emissions that are due to urban residential redevelopment were quantified and analyzed on the basis of a 3-yr micrometeorological record from the Seoul, South Korea, metropolitan area. The results show that, following urban redevelopment of compact high-rise residential buildings, 1) the daily minimum air temperature near the ground surface increased by ~0.6 K; 2) the ratio between surface sensible heat and net radiation increased by from ~9{\%} (summer) to 31{\%} (winter), anthropogenic heat emissions increased by from 7.6 (summer) to 23.6 (spring) W m-2, and daily maximum heat storage ranged from 35.1 (spring) to 54.5 (summer) W m-2; and 3) there was a transition of local circulation with changes in the surface properties of heat sources and roughness.",
author = "Hong, {Je Woo} and Jinkyu Hong",
year = "2016",
month = "5",
day = "1",
doi = "10.1175/JAMC-D-15-0321.1",
language = "English",
volume = "55",
pages = "1091--1106",
journal = "Journal of Applied Meteorology and Climatology",
issn = "1558-8424",
publisher = "American Meteorological Society",
number = "5",

}

Changes in the Seoul metropolitan area urban heat environment with residential redevelopment. / Hong, Je Woo; Hong, Jinkyu.

In: Journal of Applied Meteorology and Climatology, Vol. 55, No. 5, 01.05.2016, p. 1091-1106.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Changes in the Seoul metropolitan area urban heat environment with residential redevelopment

AU - Hong, Je Woo

AU - Hong, Jinkyu

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Since the Industrial Revolution, the geographical extent of cities has increased around the world. In particular, following three decades of rapid regional economic growth, many Asian megacities have emerged and continue to expand, resulting in inevitable short-term urban redevelopment. In this region, the microclimatic impacts of urban redevelopment have not been extensively investigated using long-term in situ observations. In this study, changes in surface sensible heat exchange, heat storage, and anthropogenic heat emissions that are due to urban residential redevelopment were quantified and analyzed on the basis of a 3-yr micrometeorological record from the Seoul, South Korea, metropolitan area. The results show that, following urban redevelopment of compact high-rise residential buildings, 1) the daily minimum air temperature near the ground surface increased by ~0.6 K; 2) the ratio between surface sensible heat and net radiation increased by from ~9% (summer) to 31% (winter), anthropogenic heat emissions increased by from 7.6 (summer) to 23.6 (spring) W m-2, and daily maximum heat storage ranged from 35.1 (spring) to 54.5 (summer) W m-2; and 3) there was a transition of local circulation with changes in the surface properties of heat sources and roughness.

AB - Since the Industrial Revolution, the geographical extent of cities has increased around the world. In particular, following three decades of rapid regional economic growth, many Asian megacities have emerged and continue to expand, resulting in inevitable short-term urban redevelopment. In this region, the microclimatic impacts of urban redevelopment have not been extensively investigated using long-term in situ observations. In this study, changes in surface sensible heat exchange, heat storage, and anthropogenic heat emissions that are due to urban residential redevelopment were quantified and analyzed on the basis of a 3-yr micrometeorological record from the Seoul, South Korea, metropolitan area. The results show that, following urban redevelopment of compact high-rise residential buildings, 1) the daily minimum air temperature near the ground surface increased by ~0.6 K; 2) the ratio between surface sensible heat and net radiation increased by from ~9% (summer) to 31% (winter), anthropogenic heat emissions increased by from 7.6 (summer) to 23.6 (spring) W m-2, and daily maximum heat storage ranged from 35.1 (spring) to 54.5 (summer) W m-2; and 3) there was a transition of local circulation with changes in the surface properties of heat sources and roughness.

UR - http://www.scopus.com/inward/record.url?scp=84973139140&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84973139140&partnerID=8YFLogxK

U2 - 10.1175/JAMC-D-15-0321.1

DO - 10.1175/JAMC-D-15-0321.1

M3 - Article

AN - SCOPUS:84973139140

VL - 55

SP - 1091

EP - 1106

JO - Journal of Applied Meteorology and Climatology

JF - Journal of Applied Meteorology and Climatology

SN - 1558-8424

IS - 5

ER -