Temporal and spatial variation relationship and influence factors on surface urban heat island and ozone pollution in the Yangtze River Delta, China

Yuanyuan Wang; Hongyu Du; Yanqing Xu; Debin Lu; Xiyuan Wang; Zhongyang Guo

doi:10.1016/j.scitotenv.2018.03.050

Temporal and spatial variation relationship and influence factors on surface urban heat island and ozone pollution in the Yangtze River Delta, China

Yuanyuan Wang
, Hongyu Du
, Yanqing Xu
, Debin Lu
, Xiyuan Wang
, Zhongyang Guo^*

^*此作品的通讯作者

地理科学学院

East China Normal University
University of Toledo

科研成果: 期刊稿件 › 文章 › 同行评审

168 引用（Scopus）

摘要

Urbanization has led to an obvious urban heat island (UHI) effect in the Yangtze River Delta (YRD), China. The ozone (O₃) pollution in the YRD is getting worse. The UHI effect is a key factor that affects the O₃ level. Understanding the influences of the UHI effect on O₃ concentrations is necessary for improving air quality. In this study, the temporal and spatial relationship between UHI and O₃ in the YRD during 2015 was investigated. The influence factors of UHI effect and O₃ are both natural and artificial. Multi-source remote sensing data, which include land cover, land surface temperature (LST), Normalization Difference Vegetation Index (NDVI), and digital elevation model (DEM) data, were used to extract surface landscape elements. The results showed that: (1) the average hourly O₃ concentration was 61.83 μg/m³ (30.92 ppb), the highest value was 105.32 μg/m³ (52.66 ppb) at 15:00 and the O₃ peak was 82.50 μg/m³ (41.25 ppb) in September. The O₃ concentrations and temperature have a similar variation trend both in diurnal and monthly. The O₃ concentrations in coastal stations are higher than those inland. (2) The average daytime UHI intensity was 1.24 °C, and the daytime O₃ concentration was 80.66 μg/m³ (40.33 ppb). There is a positive relationship between UHI and O₃ in the YRD. The relationship in the central developed cities is higher than that in the northern and southern cities. (3) The related factors influencing UHI and O₃ include surface landscape, topography and population. The LST and NDVI are most important among these factors. (4) Due to various geographical backgrounds, the UHI intensities and O₃ concentrations show obvious spatial differences. This study provides a reference with which to better understand the relationship among UHI, O₃ and related factors. Furthermore, the issues of atmospheric and energy transmission in this region deserve further study.

源语言	英语
页（从-至）	921-933
页数	13
期刊	Science of the Total Environment
卷	631-632
DOI	https://doi.org/10.1016/j.scitotenv.2018.03.050
出版状态	已出版 - 1 8月 2018

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可持续发展目标 11 可持续城市和社区

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@article{1703f99ee2c04392b2dc15d15c335a7a,

title = "Temporal and spatial variation relationship and influence factors on surface urban heat island and ozone pollution in the Yangtze River Delta, China",

abstract = "Urbanization has led to an obvious urban heat island (UHI) effect in the Yangtze River Delta (YRD), China. The ozone (O3) pollution in the YRD is getting worse. The UHI effect is a key factor that affects the O3 level. Understanding the influences of the UHI effect on O3 concentrations is necessary for improving air quality. In this study, the temporal and spatial relationship between UHI and O3 in the YRD during 2015 was investigated. The influence factors of UHI effect and O3 are both natural and artificial. Multi-source remote sensing data, which include land cover, land surface temperature (LST), Normalization Difference Vegetation Index (NDVI), and digital elevation model (DEM) data, were used to extract surface landscape elements. The results showed that: (1) the average hourly O3 concentration was 61.83 μg/m3 (30.92 ppb), the highest value was 105.32 μg/m3 (52.66 ppb) at 15:00 and the O3 peak was 82.50 μg/m3 (41.25 ppb) in September. The O3 concentrations and temperature have a similar variation trend both in diurnal and monthly. The O3 concentrations in coastal stations are higher than those inland. (2) The average daytime UHI intensity was 1.24 °C, and the daytime O3 concentration was 80.66 μg/m3 (40.33 ppb). There is a positive relationship between UHI and O3 in the YRD. The relationship in the central developed cities is higher than that in the northern and southern cities. (3) The related factors influencing UHI and O3 include surface landscape, topography and population. The LST and NDVI are most important among these factors. (4) Due to various geographical backgrounds, the UHI intensities and O3 concentrations show obvious spatial differences. This study provides a reference with which to better understand the relationship among UHI, O3 and related factors. Furthermore, the issues of atmospheric and energy transmission in this region deserve further study.",

keywords = "Land surface parameters, NO, Ozone, Surface urban heat island",

author = "Yuanyuan Wang and Hongyu Du and Yanqing Xu and Debin Lu and Xiyuan Wang and Zhongyang Guo",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = aug,

day = "1",

doi = "10.1016/j.scitotenv.2018.03.050",

language = "英语",

volume = "631-632",

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TY - JOUR

T1 - Temporal and spatial variation relationship and influence factors on surface urban heat island and ozone pollution in the Yangtze River Delta, China

AU - Wang, Yuanyuan

AU - Du, Hongyu

AU - Xu, Yanqing

AU - Lu, Debin

AU - Wang, Xiyuan

AU - Guo, Zhongyang

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Urbanization has led to an obvious urban heat island (UHI) effect in the Yangtze River Delta (YRD), China. The ozone (O3) pollution in the YRD is getting worse. The UHI effect is a key factor that affects the O3 level. Understanding the influences of the UHI effect on O3 concentrations is necessary for improving air quality. In this study, the temporal and spatial relationship between UHI and O3 in the YRD during 2015 was investigated. The influence factors of UHI effect and O3 are both natural and artificial. Multi-source remote sensing data, which include land cover, land surface temperature (LST), Normalization Difference Vegetation Index (NDVI), and digital elevation model (DEM) data, were used to extract surface landscape elements. The results showed that: (1) the average hourly O3 concentration was 61.83 μg/m3 (30.92 ppb), the highest value was 105.32 μg/m3 (52.66 ppb) at 15:00 and the O3 peak was 82.50 μg/m3 (41.25 ppb) in September. The O3 concentrations and temperature have a similar variation trend both in diurnal and monthly. The O3 concentrations in coastal stations are higher than those inland. (2) The average daytime UHI intensity was 1.24 °C, and the daytime O3 concentration was 80.66 μg/m3 (40.33 ppb). There is a positive relationship between UHI and O3 in the YRD. The relationship in the central developed cities is higher than that in the northern and southern cities. (3) The related factors influencing UHI and O3 include surface landscape, topography and population. The LST and NDVI are most important among these factors. (4) Due to various geographical backgrounds, the UHI intensities and O3 concentrations show obvious spatial differences. This study provides a reference with which to better understand the relationship among UHI, O3 and related factors. Furthermore, the issues of atmospheric and energy transmission in this region deserve further study.

AB - Urbanization has led to an obvious urban heat island (UHI) effect in the Yangtze River Delta (YRD), China. The ozone (O3) pollution in the YRD is getting worse. The UHI effect is a key factor that affects the O3 level. Understanding the influences of the UHI effect on O3 concentrations is necessary for improving air quality. In this study, the temporal and spatial relationship between UHI and O3 in the YRD during 2015 was investigated. The influence factors of UHI effect and O3 are both natural and artificial. Multi-source remote sensing data, which include land cover, land surface temperature (LST), Normalization Difference Vegetation Index (NDVI), and digital elevation model (DEM) data, were used to extract surface landscape elements. The results showed that: (1) the average hourly O3 concentration was 61.83 μg/m3 (30.92 ppb), the highest value was 105.32 μg/m3 (52.66 ppb) at 15:00 and the O3 peak was 82.50 μg/m3 (41.25 ppb) in September. The O3 concentrations and temperature have a similar variation trend both in diurnal and monthly. The O3 concentrations in coastal stations are higher than those inland. (2) The average daytime UHI intensity was 1.24 °C, and the daytime O3 concentration was 80.66 μg/m3 (40.33 ppb). There is a positive relationship between UHI and O3 in the YRD. The relationship in the central developed cities is higher than that in the northern and southern cities. (3) The related factors influencing UHI and O3 include surface landscape, topography and population. The LST and NDVI are most important among these factors. (4) Due to various geographical backgrounds, the UHI intensities and O3 concentrations show obvious spatial differences. This study provides a reference with which to better understand the relationship among UHI, O3 and related factors. Furthermore, the issues of atmospheric and energy transmission in this region deserve further study.

KW - Land surface parameters

KW - NO

KW - Ozone

KW - Surface urban heat island

UR - https://www.scopus.com/pages/publications/85043512402

U2 - 10.1016/j.scitotenv.2018.03.050

DO - 10.1016/j.scitotenv.2018.03.050

M3 - 文章

C2 - 29728003

AN - SCOPUS:85043512402

SN - 0048-9697

VL - 631-632

SP - 921

EP - 933

JO - Science of the Total Environment

JF - Science of the Total Environment

ER -

Temporal and spatial variation relationship and influence factors on surface urban heat island and ozone pollution in the Yangtze River Delta, China

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