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Advances in Atmospheric Sciences 2011年第4期28卷 855-865页

作者：张宁朱莲芳朱焱 School of Atmospheric Sciences Nanjing University Suzhou Meteorological Bureau

A strong urban heat island （UHI） appeared in a hot weather episode in Suzhou City during the period from 25 July to 1 August 2007. This paper analyzes the urban heat island characteristics of Suzhou City under this hot weather episode. Both meteorological station observations and MODIS satellite observations show a strong urban heat island in this area. The maximum UHI intensity in this hot weather episode is 2.2℃, which is much greater than the summer average of 1.0℃ in this year and the 37–year （from 1970 to 2006） average of 0.35℃. The Weather Research and Forecasting （WRF） model simulation results demonstrate that the rapid urbanization processes in this area will enhance the UHI in intensity, horizontal distribution, and vertical extension. The UHI spatial distribution expands as the urban size increases. The vertical extension of UHI in the afternoon increases about 50 m higher under the year 2006 urban land cover than that under the 1986 urban land cover. The conversion from rural land use to urban land type also strengthens the local lake-land breeze circulations in this area and modifies the vertical wind speed field.

关键词： urban heat island hot weather numerical simulation urban boundary layer

urban heat island Investigations in Arctic Cities of Northwestern Russia

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Journal of Meteorological Research 2017年第6期31卷 1161-1166页

作者： Oleg I.SHUMILOV Elena A.KASATKINA Alexander G.KANATJEV Polar Geophysical Institute Apatity 184209Russia

urban microclimate peculiarities in two Arctic cities in northwestern Russia--Kirovsk （67.62°N, 33.67°E） and Apatity （67.57°N, 33.38°E）-were investigated by using mobile temperature records. The experiment was carried out in and around Apatity and Kirovsk in February 2014 and December 2016. The DS 18B20 digital thermometer was in- stalled on the roof of a car （height： approximately 1.2 m） to measure and record temperature variations automatically. In addition to the digital thermometer, the car was also equipped with an onboard global positioning system, allow- ing every temperature measurement to be referenced with an altitude and a latitude/longitude position. The possibility of urban heat island formation in these polar cities, above the Arctic Circle, was studied. Our analysis indicated that on 11 February 2014, the temperature varied in accordance with the background environmental lapse rate （-0.0045℃ m^-1）, and nearly corresponded to it （-0.0165℃ m^-1） on 12 February 2014. On 6 December 2016, a strong local temperature inversion with a positive value of 0.032℃ m^-1 was detected, seemingly caused by the formation of a cold air pool in the valley near Kirovsk. It was found that the temperature variations within and outside these cities are strongly influenced by local topographic effects and the physical conditions of the atmospheric boundary layer.

关键词： urban microclimate topo-climate urban heat island mobile temperature measurement

Relationships between land use types and urban heat island intensity in Hulu Langat district,Selangor,Malaysia

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Ecological Processes 2023年第1期12卷 461-474页

作者： Muhammad Rendana Wan Mohd Razi Idris Sahibin Abdul Rahim Hazem Ghassan Abdo Hussein Almohamad Ahmed Abdullah Al Dughairi Motrih Al-Mutiry Department of Chemical Engineering Faculty of EngineeringUniversitas SriwijayaIndralaya 30662South SumatraIndonesia Department of Earth Sciences and Environment Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Department of Environmental Science Faculty of Science and Natural ResourcesUniversiti Malaysia Sabah88400 Kota KinabaluSabahMalaysia Geography Department Faculty of Arts and HumanitiesTartous UniversityTartousSyria Department of Geography College of Arabic Language and Social StudiesQassim UniversityBuraydah 51452Saudi Arabia Department of Geography College of ArtsPrincess Nourah Bint Abdulrahman UniversityRiyadh 11671Saudi Arabia

Background urban heat island(UHI)is an urban climate phenomenon that primarily responds to urban conditions and land use *** extent of hard surfaces significantly influences the thermal properties of the *** address this issue,a novel approach quantifying the association between land use and UHI is *** study offers a new technique for effectively estimating the effect of land use on the UHI intensity using the combination of urban heat intensity index(UHII)and land contribution index(LCI)derived from Landsat 8 OLI *** time-series thermal effect of land use on the UHI intensity can be determined according to the ratio in mean temperature between specific land use and the whole study *** study was conducted in the Hulu Langat district,Malaysia during *** The UHI intensity rose from 0.19 in 2014 to 0.70 in *** negative value of LCI for vegetation areas and water bodies obtained its negative contribution to the urban heat island,while the positive value of LCI for bare areas and built-up areas showed its positive effect on the urban heat *** LCI value for urban areas showed a significant increase in the 7 years such as 0.51,0.66,0.69,and 0.75 for periods 2014,2016,2018,and 2021,*** change in LCI from 2014 to 2021 for the transformation of bare area and forest was recorded to be 0.23 and−0.02,***,the conversion of forests into urban areas had a negative effect on the increment of UHI *** Overall,these findings are useful for policy-making agency in developing an effective policy for reducing high UHI intensity and planning long-term land use management.

关键词： Geospatial technology urban heat island Land contribution index Land surface temperature Environment

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Remote sensing of the urban heat island and its changes in Xiamen City of SE China

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Journal of Environmental Sciences 2004年第2期16卷 276-281页

作者： XUHan-qiu CHENBen-qing CollegeofEnvironinenlalandResourcesEngineering FuzhouUniversityFuzhou350002.China.

World-wide urbanization has significantly modified the landscape, which has important climatic implications across all scales due to the simultaneous removal of natural land cover and introduction of urban materials. This resulted in a phenomenon known as an urban heat island(UHI). A study on the UHI in Xiamen of China was carried out using remote sensing technology. Satellite thermal infrared images were used to determine surface radiant temperatures. Thermal remote sensing data were obtained from band 6 of two Landsat TM/ETM\++ images of 1989 and 2000 to observe the UHI changes over 11-year period. The thermal infrared bands were processed through several image enhancement technologies. This generated two 3-dimension-perspective images of Xiamen's urban heat island in 1989 and 2000, respectively, and revealed heat characteristics and spatial distribution features of the UHI. To find out the change of the UHI between 1989 and 2000, the two thermal images were first normalized and scaled to seven grades to reduce seasonal difference and then overlaid to produce a difference image by subtracting corresponding pixels. The difference image showed an evident development of the urban heat island in the 11 years. This change was due largely to the urban expansion with a consequent alteration in the ratio of sensible heat flux to latent heat flux. To quantitatively compare UHI, an index called urban-heat-island Ratio Index(URI) was created. It can reveal the intensity of the UHI within the urban area. The calculation of the index was based on the ratio of UHI area to urban area. The greater the index, the more intense the UHI was. The calculation of the index for the Xiamen City indicated that the ratio of UHI area to urban area in 2000 was less than that in 1989. High temperatures in several areas in 1989 were reduced or just disappeared, such as those in old downtown area and Gulangyu island. For the potential mitigation of the UHI in Xiamen, a long-term heat island red

关键词： remote sensing urban heat island urban-heat-island ratio index digital brightness model Xiamen City

Impact of cropland degradation in the rural-urban fringe on urban heat island and heat stress during summer heat waves in the Yangtze River Delta

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Advances in Climate Change Research 2022年第2期13卷 240-250页

作者： Hong-Yun MA Hai-Jun LI Mi ZHANG Xuan DONG Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)/Key Laboratory of Meteorological Disaster Ministry of Education(KLME)/Joint International Research Laboratory of Climate and Environmental Change(ILCEC)Nanjing University of Information Science and TechnologyNanjing 210044China Jiangxi Meteorological Observatory Nanchang 330046China School of Atmospheric Sciences Nanjing UniversityNanjing 210023China

China has experienced rapid urbanization since the 1980s,which has significantly reduced croplands around *** from transition to urban land,croplands have also experienced degradation into cropland/natural vegetation mosaic in the rural-urban ***,scant attention has been paid to the climatic effect of such land cover change so *** study thus investigated the potential impacts of the conversion from irrigated cropland into the mosaic on regional hot extremes and heat stress by taking the Yangtze River Delta(YRD)as an *** heatwave events in the summer of 2013 and 2017 were simulated using the Weather Research and Forecasting Model(WRF).Three group experiments with various representative land cover scenarios,i.e.,a default setting experiment with outdated land cover(Exp USGS),a control experiment with updated land cover(CTL),and a sensitivity experiment with modified mosaic land cover(Exp MOS),were performed for comparative *** show that CTL using the updated land cover data from China(ChinaLC)reproduced the spatial variation of observed 2-m air temperature and relative humidity better than Exp *** the irrigated cropland was converted into the mosaic,the 2-m temperatures in most areas of the YRD became significantly higher than those in Exp MOS due to the lower albedo and leaf area index(LAI)in the newly emerged mosaic *** land cover change produced a negative contribution to the urban heat island(UHI)intensity,while it had a positive effect on extreme high temperature under heat wave *** suggests a more cautious usage of the traditional definition of the UHI index is required when investigating the heat island effect,because the rural warming around an urban area may expand the heat island and enhance its heat *** the heatwave periods,the high temperature areas in CTL were larger than those in MOS,and the hot day areas increased by an average of 25.9%.Increase in air temperature further

关键词： Cropland degradation Cropland/natural vegetation mosaic urban heat island Extreme temperature heat stress

Influence of new town development on the urban heat island-The case of the Bundang area

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Journal of Environmental Sciences 2005年第4期17卷 641-645页

作者： SONG Young-bae School of Architecture Landscape Architecture and Civil Engineering Sung Kyun Kwan UniversityKorea

Five new towns have been developed around the Seoul metropolitan area since 1996 However, these new towns generate lots of traffic and related problems in the areas including those new towns and Seoul as a result of increases in population and a lack of ecological-self-sufficiency. Currently, construction of another new town is under deliberation, and what should be a major consider is the notion that the new town be located within a wide, green zone. Many studies have revealed that green space can play an important role in improving urban eco-meteorological capability and air quality. In order to analyze the urban heat island which will be created by the new urban development, and to investigate the local thermal environment and its negative effects caused by a change of land use type and urbanization, Landsat TM images were used for extraction of urban surface temperature according to changes of land use over the last 15 years. These data are analyzed together with digital land use and topographic information. As a study result, it was found the urban heat island of the study area from 1985 to 1999 rapidly developed which showed a difference of mean temperature above +2 0 Before the Bundang new town construction the temperature of the residential area was the same as a forest, but during the new town construction in 1991 analysis revealed the creation of an urban heat island. The temperature of a forest whose size is over 50% of the investigation area was lowest, and thus the presence of a forest is believed to have a direct cooling effect on the urban environment and its surroundings. The mean temperature of the residential and commercial areas in the study was found to be +4 5 higher than the forest, and therefore this part of land use is believed to be the main factor causing the temperature increase of the urban heat island.

关键词： urban heat island new town development urban climate landsat TM nand 6 air corridor

Exploring the spatiotemporal relationship between green infrastructure and urban heat island under multi‐source remote sensing imagery:A case study of Fuzhou City

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CAAI Transactions on Intelligence Technology 2023年第4期8卷 1337-1349页

作者： Tingting Hong Xiaohui Huang Guangjian Chen Yiwei Yang Lijia Chen School of Architecture and urban Planning Fuzhou UniversityFujianChina Weitzman School of Design University of PennsylvaniaPhiladelphiaPennsylvaniaUSA Fujian Geologic Surveying and Mapping Institute FujianChina Landscape Architecture Fujian Agriculture and UniversityFujianChina

Green Infrastructure(GI)has garnered increasing attention from various regions due to its potential to mitigate urban heat island(UHI),which has been exacerbated by global climate *** study focuses on the central area of Fuzhou city,one of the“furnace”cities,and aims to explore the correlation between the GI pattern and land surface temperature(LST)in the spring and autumn *** research adopts a multiscale approach,starting from the urban scale and using urban geographic spatial characteristics,multispectral remote sensing data,and morphological spatial pattern analysis(MSPA).Significant MSPA elements were tested and combined with LST to conduct a geographic weighted regression(GWR)*** findings reveal that the UHI in the central area of Fuzhou city has a spatial characteristic of“high temperature in the middle and low temperature around,”which is coupled with a“central scattered and peripheral concentrated”distribution of *** suggests that remote sensing data can effectively be utilised for UHI ***,the study finds that the complexity of GI,whether from the perspective of the overall GI pattern or the classification study based on the proportion of the core area,has an impact on the alleviation of UHI in both *** conclusion,this study underscores the importance of a reasonable layout of urban green infrastructure for mitigating UHI.

关键词： geographic weighted regression green infrastructure image analysis morphological spatial pattern analysis statistical analysis urban heat island

Analysis of the Spatio-Temporal Characteristics of Winter Surface urban heat island:A Case Study in Beijing,China

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Journal of Earth Science 2024年第5期35卷 1640-1653页

作者： Shanshan Lu Fujiang Liu Yunshuang Ye Jiayu Tang Peng Li Weihua Lin Yan Guo Ruqiang Ma Jun Wang School of Geography and Information Engineering China University of GeosciencesWuhan 430074China AutoNavi Software Co. Ltd.Beijing 100102China School of Computer Science China University of GeosciencesWuhan 430078China Yantai Geological Survey of Coastal Resources Center Yantai 264000China

This study reveals the temporal and spatial evolution characteristics of the winter nighttime urban heat island(UHI)effect in the case of Beijing,*** land surface temperature(LST)is retrieved by radiative transfer equation by using the remote sensing data from Landsat ETM+/OLI_TIRS from 2007 to 2017 for the winter nighttime period,and LST is then divided by the mean-standard deviation method into different levels of thermal landscapes.A combination of the migration calculation of gravity center and multi-directional profile analysis is used to study the directional differentiation characteristics of LST and the migratory characteristics of the gravity center of ***,the overall temporal and spatial evolution characteristics of winter nighttime surface urban heat island(SUHI)in Beijing are studied,and the possible reasons for the changes are *** show that Beijing's UHI effect first increased and subsequently decreased from 2007 to *** winter heat island in the urban area developed from low-density agglomeration to high-density agglomeration to lowdensity ***,the high-level thermal landscapes migrated to the southwest along with the city center of gravity,and the expansion rate is fastest in the southwest,which is directly linked to the changes in the urban construction ***,the overall spatial distribution of winter nighttime LST is high in the east and south and low in the west and north,and is influenced by topography,land cover,urbanization,anthropogenic heat,and other factors as well.

关键词： land surface temperature urban heat island spatio-temporal characteristics winter environmentgeology

Quantifying the response of surface urban heat island to urbanization using the annual temperature cycle model

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Geoscience Frontiers 2022年第1期13卷 478-487页

作者： Huidong Li Yuyu Zhou Gensuo Jia Kaiguang Zhao Jinwei Dong Department of Geological and Atmospheric Sciences Iowa State UniversityAmes 50011USA Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Ohio Agricultural Research and Development Center School of Environment and Natural ResourcesThe Ohio State UniversityWoosterOH 44691USA Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101

urban heat island(UHI),driving by urbanization,plays an important role in urban sustainability under climate ***,the quantification of UHI’s response to urbanization is still challenging due to the lack of robust and continuous temperature and urbanization datasets and reliable quantification *** study proposed a framework to quantify the response of surface UHI(SUHI)to urban expansion using the annual temperate cycle *** built a continuous annual SUHI series at the buffer level from 2003 to 2018 in the Jing-Jin-Ji region of China using MODIS land surface temperature and imperviousness derived from *** then investigated the spatiotemporal dynamic of SUHI under urban expansion and examined the underlying ***,the largest SUHI interannual variations occurred in suburban areas compared to the urban center and rural ***,the increase in SUHI under urban expansion was more significant in daytime compare to *** found that the seasonal variation of SUHI was largely affected by the seasonal variations of vegetation in rural areas and the interannual variation was mainly attributed to urban expansion in urban ***,urban greening led to the decrease in summer daytime SHUI in central urban *** findings deepen the understanding of the long-term spatiotemporal dynamic of UHI and the quantitative relationship between UHI and urban expansion,providing a scientific basis for prediction and mitigation of UHI.

关键词： urban heat island urbanization Spatiotemporal dynamics Annual temperature cycle model Diurnal temperature range

A NUMERICAL STUDY ON THE INFLUENCES OF urban PLANNING AND CONSTRUCTION ON THE SUMMER urban heat island IN THE METROPOLIS OF SHENZHEN

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Journal of Tropical Meteorology 2011年第4期17卷 392-398页

作者：张小丽李磊杜雁江崟房小怡力梅陈元昭白玉洁 Meteorological Bureau of Shenzhen Municipality urban Planning & Design Institute of Shenzhen Beijing Municipal Climate Center Guangdong Meteorological Training Centre

By means of the regional boundary layer model (RBLM),a study on the influences of the urban planning and construction on the summer urban heat island (UHI) in the metropolis of Shenzhen is *** the study,the current summer UHI distribution,the influences of the increasing high-density construction and the energy consumption on the summer air temperature distribution,and the influences of the urban ventilation corridor on the summer air temperature distribution are numerically *** conclusions are drawn in the light of the study:(1) The summer UHI is more obvious in day time than that in night time in the summer of Shenzhen,and the maximum values of UHI intensity in the day time appear in the areas with high-density construction,which are located in Nanshan,Futian and Luohu and western Bao'an districts.(2) The increase of construction density and energy consumption in the urban area will lead to the increase of temperature near the ground,and the increase of temperature at nighttime is more obvious than that at daytime.(3) The ventilation corridor can effectively reduce the UHI intensity and can be taken as a method to eliminate the negative climatic effect caused by the increase of high-density construction and energy consumption in the future.

关键词： urban heat island numerical simulation Shenzhen