Effects of urban morphology and wind conditions on land surface temperature in Changchun
FENG Zhangxian1, WANG Shijun1, JIN Shanhe2, YANG Jun,21. School of Geographical Sciences, Northeast Normal University, Changchun 130024, China 2. Human Settlements Research Center, Liaoning Normal University, Dalian 116029, Liaoning, China
National Natural Science Foundation of China.41571150 National Natural Science Foundation of China.41630749 National Natural Science Foundation of China.41771178 National Natural Science Foundation of China.41471140 Program of Innovation Talents in Universities of Liaoning Province.LR2017017
作者简介 About authors 冯章献(1982-),男,安徽合肥人,博士,硕士生导师,中国地理学会会员(S110006756M),研究方向为城市与区域发展E-mail:fengzx092@nenu.edu.cn。
Abstract The urban heat island effect has received an increasing attention recently with the acceleration of urbanization. However, so far few studies have focuses on the effects of urban morphology and wind conditions on land surface temperature (LST). This study utilizes a range of multi-source data including architecture and remote sensing and applies a GIS spatial method combined with urban building frontal area index (FAI) and LST. This research aims to evaluate spatiotemporal differences in the FAI of urban built-up areas as well as to explore the influence of urban form on surface temperature. Results initially reveal that building FAI conforms to a spatial trend comprising outward diffusion from the city center and shows that high density, higher elevation buildings hinder the wind strongly. Data show that FAI values for the north of Chaoyang District are the largest, reaching a maximum of 15.1, while those for edge areas for each district are the smallest, falling to a minimum of 0.01. Secondly, the results of this analysis reveal large differences in surface temperature between day and night within the study area, ranging between 18.15 ℃ and 31.73 ℃ and between 4.27 ℃ and 18.43 ℃, respectively. Spatial distribution values exhibit the same characteristics as those for the FAI; the urban central city is characterized by high temperature, which gradually spreads out in a concentric manner. The range of high temperature areas during the day is also larger than that at night as these values are influenced by other variables including urban architectural form and artificial heat sources. Thirdly, the data assembled here show that FAI is related to surface temperature to a certain extent; recorded correlations between day and night are 0.371 and 0.355, respectively, both significant at the 0.01 level. It is also the case that building spatial shape is distinct in both vertical and horizontal directions and that the influence of surface temperature varies. Wind environmental data is an important component of quantitative research on building form and is necessary if urban climate scientists and planners are to explore and enhance potential ventilated corridors within cities. Keywords:frontal area index;MODIS;urban heat island;urban wind condition;Changchun
PDF (4351KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 冯章献, 王士君, 金珊合, 杨俊. 长春市城市形态及风环境对地表温度的影响. 地理学报[J], 2019, 74(5): 902-911 doi:10.11821/dlxb201905005 FENG Zhangxian. Effects of urban morphology and wind conditions on land surface temperature in Changchun. Acta Geographica Sinice[J], 2019, 74(5): 902-911 doi:10.11821/dlxb201905005
QiaoZhi, TianGuangjin . Dynamic monitoring of the footprint and capacity for urban heat island in Beijing between 2001 and 2012 based on MODIS Journal of Remote Sensing, 2015,19(3):476-484. [本文引用: 1]
ZhaoJie, DuZiqiang, WuZhitao , et al. Seasonal variations of day- and nighttime warming and their effects on vegetation dynamics in China's temperate zone Acta Geographica Sinica, 2018,73(3):395-404. [本文引用: 2]
ZhaoL, LeeX, Smith RB , et al. Strong contributions of local background climate to urban heat islands , 2014,511(7508):216-219. DOI:10.1038/nature13462URL [本文引用: 1]
BaiX, Dawson RJ, ürge-VorsatzD , et al. Six research priorities for cities and climate change , 2018,555(7694):23-25. DOI:10.1038/d41586-018-02409-zURL [本文引用: 1]
IrinaM, DanielJ S . Solomon Susan. Pace of shifts in climate regions increases with global temperature , 2013,3(8):739-743. DOI:10.1038/nclimate1876 [本文引用: 1]
ZhouB, RybskiD, Kropp JürgenP . The role of city size and urban form in the surface urban heat island , 2017,7(1):1-9. DOI:10.1038/s41598-016-0028-xURL [本文引用: 1]
YangJun, GuoAndong, XiJianchao , et al. Spatial-temporal differentiation of three-dimensional urban landscape pattern: A case study of Zhongshan District in Dalian Acta Geographica Sinica, 2017,72(4):646-656. [本文引用: 1]
Wong MS, Nichol JE, To PH , et al. A simple method for designation of urban ventilation corridors and its application to urban heat island analysis , 2010,45(8):1880-1889. DOI:10.1016/j.buildenv.2010.02.019URL [本文引用: 1]
ShiY, KatzschnerL, NgE . Modelling the fine-scale spatiotemporal pattern of urban heat island effect using land use regression approach in a megacity , 2017,618:891-904. [本文引用: 1]
ZhangJiahua, MengQianwen, LiXin , et al. Urban heat island variations in Beijing region in multi spatial and temporal scales Scientia Geographica Sinica, 2011,31(11):1349-1354. Magsci [本文引用: 1] 利用气象台站数据分析北京城郊气温和城市热岛(UHI)强度的年变化及风速对北京UHI的影响;同时分析北京5个城市站点UHI在不同季节的日变化特征。结果表明,近44 a来北京市区与郊区的多年平均气温和UHI强度均呈增加的趋势。风速的降低促进北京城区的UHI出现增加趋势。风速对UHI的季节变化影响也很显著。2005年北京UHI日变化呈现了明显的夜间强,午间弱的特征,尤以天安门和公主坟站点的UHI日变化明显;冬季UHI强度比其他季节相应时次的UHI都强,且冬季UHI日变化幅度最大,夏季日变化幅度最小。 [ 张佳华, 孟倩文, 李欣 , 等. 北京城区城市热岛的多时空尺度变化 , 2011,31(11):1349-1354.] Magsci [本文引用: 1] 利用气象台站数据分析北京城郊气温和城市热岛(UHI)强度的年变化及风速对北京UHI的影响;同时分析北京5个城市站点UHI在不同季节的日变化特征。结果表明,近44 a来北京市区与郊区的多年平均气温和UHI强度均呈增加的趋势。风速的降低促进北京城区的UHI出现增加趋势。风速对UHI的季节变化影响也很显著。2005年北京UHI日变化呈现了明显的夜间强,午间弱的特征,尤以天安门和公主坟站点的UHI日变化明显;冬季UHI强度比其他季节相应时次的UHI都强,且冬季UHI日变化幅度最大,夏季日变化幅度最小。
Hsieh CM, Huang HC . Mitigating urban heat islands: A method to identify potential wind corridor for cooling and ventilation. Computers, , 2016,57:130-143. DOI:10.1016/j.compenvurbsys.2016.02.005URL [本文引用: 1]
NgE, YuanC, ChenL , et al. Improving the wind environment in high-density cities by understanding urban morphology and surface roughness: A study in Hong Kong , 2011,101(1):59-74. DOI:10.1016/j.landurbplan.2011.01.004URL [本文引用: 1]
YangJunyan, ZhangTao, TanYing . Research on urban wind environment: Technology evolution and integration of evaluation systems South Architecture, 2014,1(3):31-38. Magsci [本文引用: 1] 随着城市化水平的提高以及城市空间密度不断加大,城市风环境问题成为了多学科研究关注的热点,风环境对景观环境设计、空气质量改善、开放空间热舒适度感知均具有重要的作用。从风环境研究的技术演进和其评价体系建构两个角度来分别对国内外城市风环境研究进行了梳理与总结,将其技术演进分为实地测量法研究、物理模拟法研究和计算机数值模拟法研究三个阶段进行详细分析,对现有的城市风环境评价体系特征进行了整合,相关技术方法能对城市规划起到积极的补充,具有明显的实践效果。<br> [ 杨俊宴, 张涛, 谭瑛 . 城市风环境研究的技术演进及其评价体系整合 , 2014,1(3):31-38.] Magsci [本文引用: 1] 随着城市化水平的提高以及城市空间密度不断加大,城市风环境问题成为了多学科研究关注的热点,风环境对景观环境设计、空气质量改善、开放空间热舒适度感知均具有重要的作用。从风环境研究的技术演进和其评价体系建构两个角度来分别对国内外城市风环境研究进行了梳理与总结,将其技术演进分为实地测量法研究、物理模拟法研究和计算机数值模拟法研究三个阶段进行详细分析,对现有的城市风环境评价体系特征进行了整合,相关技术方法能对城市规划起到积极的补充,具有明显的实践效果。<br>
WangTianxing, ChenSonglin, YanGuangjian . Estimation of land surface parameters and spatio-temporal characteristics of urban heat island Scientia Geographica Sinica, 2009,29(5):697-702. URLMagsci [本文引用: 1] 采用TES算法实现了ASTER地表温度的反演,在对发射率估算方法改进基础上,利用单窗算法反演1989年TM地表温度。结合C地形校正,利用线性光谱模型提取植被覆盖度与城市不透水面密度,利用反射率提取NDVI。从多方面对城市热岛时空演变进行综合研究,研究表明,与等间距法相比,均值-标准差法可以较合理地刻画地表热场的分布,一定程度上可以避开不同时相的差异。最后时空对比及空间统计学分析显示,1989~2004年间福州市城市热岛面积、热岛强度都有所增加,城市热岛总体趋势为西北-东南走向,并逐渐向北-南方向偏移,而且城市热岛重心向东南方向偏移。 [ 王天星, 陈松林, 阎广建 . 地表参数反演及城市热岛时空演变分析 , 2009,29(5):697-702.] URLMagsci [本文引用: 1] 采用TES算法实现了ASTER地表温度的反演,在对发射率估算方法改进基础上,利用单窗算法反演1989年TM地表温度。结合C地形校正,利用线性光谱模型提取植被覆盖度与城市不透水面密度,利用反射率提取NDVI。从多方面对城市热岛时空演变进行综合研究,研究表明,与等间距法相比,均值-标准差法可以较合理地刻画地表热场的分布,一定程度上可以避开不同时相的差异。最后时空对比及空间统计学分析显示,1989~2004年间福州市城市热岛面积、热岛强度都有所增加,城市热岛总体趋势为西北-东南走向,并逐渐向北-南方向偏移,而且城市热岛重心向东南方向偏移。
WengQ . Thermal infrared remote sensing for urban climate and environmental studies: Methods, applications, and trends , 2009,64(4):335-344. DOI:10.1016/j.isprsjprs.2009.03.007URL [本文引用: 1]
KatoaS, KouyamaaT, NakamuraaR , et al. Simultaneous retrieval of temperature and area according to sub-pixel hotspots from nighttime Landsat 8 OLI data , 2018,204:276-286. DOI:10.1016/j.rse.2017.10.025URL [本文引用: 1]
YaoYonghui, ZhangBaiping . MODIS-based estimation of air temperature and heating-up effect of the Tibetan Plateau Acta Geographica Sinica, 2013,68(1):95-107. [本文引用: 1]
XuWeiyan, SunRui, JinZhifeng , et al. Estimation of near surface air temperature based on MODIS data Meteorological and Environmental Sciences, 2015,38(1):1-6. [本文引用: 1]
GulbeL, CauneV, KoratsG . Urban area thermal monitoring: Liepaja case study using satellite and aerial thermal data , 2017,63:45-54. DOI:10.1016/j.jag.2017.07.005URL [本文引用: 1]
YuanZhen, WuXiangli, ZangShuying , et al. Cooling effect of green patche based on TM image in Harbin downtown city Scientia Geographica Sinica, 2017,37(10):1600-1608. [本文引用: 1]
YangJ, SunJ, Ge QS , et al. Assessing the impacts of urbanization-associated green space on urban land surface temperature: A case study of Dalian, China , 2017,22:1-10. [本文引用: 1]
Zhou DC, Zhao SQ, Liu SG , et al. Surface urban heat island in China's 32 major cities: Spatial patterns and drivers , 2014,152:51-61. DOI:10.1016/j.rse.2014.05.017URL [本文引用: 1]
TranH, UchihamaD, OchiS , et al. Assessment with satellite data of the urban heat island effects in Asian mega cities , 2006,8(1):34-48. DOI:10.1016/j.jag.2005.05.003URL [本文引用: 1]
Beijing: China Architecture and Building Press, 2005. [本文引用: 1]
WanZ, ZhangY, ZhangQ , et al. Quality assessment and validation of the MODIS global land surface temperature , 2004,25(1):261-274. DOI:10.1080/0143116031000116417URL [本文引用: 1]
PengF, Wong MS, Nichol JE , et al. Historical GIS data and changes in urban morphological parameters for the analysis of urban heat islands in Hong Kong , 2016, XLI- B2:55-62. [本文引用: 1]
Macdonald RW, Griffiths RF, Hall DJ . An improved method for the estimation of surface roughness of obstacle arrays , 1998,32(11):1857-1864. DOI:10.1016/S1352-2310(97)00403-2URL [本文引用: 1]
Hsieh CM, Huang HC . Mitigating urban heat islands: A method to identify potential wind corridor for cooling and ventilation. Computers, , 2016,57:130-143. DOI:10.1016/j.compenvurbsys.2016.02.005URL [本文引用: 1]
BottemaM, Mestayer PG . Urban roughness mapping-validation techniques and some first results , 1998,76(2):163-173. [本文引用: 1]