检索结果-南通市图书馆

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

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

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

climate &Sustainability Implications of Land Use Alterations in an urbanizing Region: Raleigh-Durham, North Carolina

引用

Journal of Environmental Protection 2016年第7期7卷 1072-1088页

作者： E. M. B. Doran J. S. Golden Division of Earth and Ocean Sciences Nicholas School of the Environment Duke University Durham USA

urban climate is the most immediate manifestation of the warming global climate for the majority of people on earth. Nearly half of those people live in small to medium sized cities, an understudied scale in urban climate research. Widespread characterization would be useful to decision makers in planning and design for land use decisions. Using a multi-method approach, the mesoscale UHI in the study region is characterized and the secular trend over the last sixty years evaluated. Under isolated ideal conditions the findings indicate a UHI of 5.3℃ ± 0.97℃ to be present in the study area, the magnitude of which is growing over time.

关键词： Land Use urban Heat Island Mesoscale urban climate Piedmont North Carolina

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Impact of building regulations on the perceived outdoor thermal comfort in the mixed-use neighbourhood of Chennai

引用

Frontiers of Architectural Research 2021年第1期10卷 148-163页

作者： Ebin Horrison Salal Rajan Lilly Rose Amirtham Sathyabama Institute of Science and Technology ChennaiIndia School of Planning and Architecture VijayawadaAndhra PradeshIndia

The population in urban areas is increasing rapidly around the world in most of the *** India,this growth has forced the local governments to review the planning norms regularly with the main focus of making an affordable urban *** resulted in increasing the built density without evaluating the effect of such developments on human thermal *** microclimate is one of the significant factors that determine the quality of out-door *** study investigates the potential impact of the built geometry guided by the newly published development control rules of Chennai,India on the various parameters that influence *** existing and future scenario has been modelled for three locations in a typical mixed-use neighborhood of ***,air temperature and relative humid-ity were measured in three locations on a typical summer month of May *** recorded data was used for validating the simulated model and calibrating the model *** the studies on outdoor thermal comfort compare a base case scenario and project future *** paper is a more realistic comparison of outdoor thermal comfort between the actual resultant built environment guided by the new Tamil Nadu Combined Development and Building Rules,2019 for selected locations and the existing built geometry which is the outcome of revised development control rules of *** study found a significant reduction of 18℃in mean radiant temperature(Tmrt)and a reduction of 12℃in Physiological Equiv-alent Temperature(PET)between the 2013 and the predicted built geometry as per 2019 build-ing *** the duration of extreme heat stress in the Physiological Equivalent Temperature(PET)scale show a reduction of 3 h during the day time,The study will assist ur-ban planners and designers to include outdoor thermal comfort also as an important factor while developing building rules.

关键词： urban climate urban morphology Building regulations Outdoor thermal comfort

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Data generative machine learning model for the assessment of outdoor thermal and wind comfort in a northern urban environment

引用

Frontiers of Architectural Research 2023年第3期12卷 541-555页

作者： Nasim Eslamirad Francesco De Luca Kimmo Sakari Lylykangas Sadok Ben Yahia FinEst Centre for Smart Cities Tallinn University of TechnologyTallinn 10319Estonia Department of Civil Engineering andArchitecture TallinnUniversity ofTechnologyTallinn 10319Estonia Department of Software Science Tallinn University of TechnologyTallinn 10319Estonia

Predicting comfort levels in cities is challenging due to the many metric *** overcome these challenges,much research is being done in the computing community to develop methods capable of generating outdoor comfort *** Learning(ML)provides many opportunities to discover patterns in large datasets such as urban *** paper proposes a data-driven approach to build a predictive and data-generative model to assess outdoor thermal *** model benefits from the results of a study,which analyses Computational Fluid Dynamics(CFD)urban simulation to determine the thermal and wind comfort in Tallinn,*** ML model was built based on classification,and it uses an opaque ML *** results were evaluated by applying different metrics and show us that the approach allows the implementation of a data-generative ML model to generate reliable data on outdoor comfort that can be used by urban stakeholders,planners,and researchers.

关键词： urban climate Outdoor thermal and wind comfort Predictive model Data generative model Machine learning approach

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multi-level CO_(2) fluxes over Beijing megacity with the eddy covariance method

引用

Atmospheric and Oceanic Science Letters 2021年第6期14卷 28-32页

作者： Yang Liu Huizhi Liu Qun Du Lujun Xu State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Chinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Based on five years of eddy covariance measurements at multiple levels(47,140,and 280 m)of Beijing's 325-m meteorological tower,the exchange process of CO_(2) fluxes between the atmosphere and urban surface were *** a result of the total vehicle control policy from 2011 in Beijing,the growth rate of annual total CO_(2) flux at 140 m is 7.8% from 2008-2010 but 2.3%from *** the minimum vegetation cover and largest population density,the 5-yr average annual total CO_(2) flux at 140 m is largest(6.41 kg C m^(−2) yr^(−1)),compared with that at 47 m(5.78 kg C m^(−2) yr^(−1))and 280 m(3.99 kg C m^(−2) yr^(−1)).With regards to annual total CO_(2) fluxes in Beijing,vehicle numbers and population are the main controlling *** measured CO_(2) fluxes were highly dependent on land cover/use in the prevailing wind *** CO_(2) fluxes at three layers all correlated positively with road fraction,with the R2 values being 0.69,0.57,and 0.54(P<0.05),*** decreasing fraction of vegetation caused an increasing of the annual total CO_(2) flux,and there was an exponential relationship between *** annual total CO_(2) fluxes were larger with higher population density.

关键词： Eddy covariance CO_(2)flux urban boundary layer urban climate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Simulation of interaction between high-temperature process and heat emission from electricity system in summer

引用

Global Energy Interconnection 2022年第6期5卷 692-702页

作者： Kai Liu Yuanhan Du Weidong Chen Xijuan Wu Information and Communication Company State Grid Jiangsu Electric Power CompanyNanjing 210000P.R.China China Electric Power Research Institute Nanjing 210003P.R.China

During the hot summer season,using electricity systems increases the local anthropogenic heat emission,further increasing the *** anthropogenic heat sources,electric energy consumption,heat generation,indoor and outdoor heat transfer,and exchange in buildings play a critical role in the change in the urban thermal ***,the Weather Research and Forecasting(WRF)Model was applied in this study to investigate the heat generation from an indoor electricity system and its influence on the outdoor thermal *** the building effect parameterization(BEP)of a multistorey urban canopy scheme,a building energy model(BEM)to increase the influence of indoor air conditioning on the electricity consumption system was *** other words,the BEP+BEM urban canopy parameterization scheme was *** temperatures and a summer heat wave were simulated as the background *** results show that using the BEP+BEM parameterization scheme of indoor and outdoor energy exchange in the WRF model can better simulate the air temperature near the surface layer on a sunny *** the day,the turning on the air conditioning and other electrical systems have no obvious effect on the air temperature near the surface layer in the city,whereas at night,the air temperature generally increases by 0.6℃,especially in densely populated areas,with a maximum temperature rise of approximately 1.2℃from 22:00 to 23:*** the indoor air conditioning target temperature is adjusted to 25-27℃,the total energy release of the air conditioning system is reduced by 12.66%,and the temperature drops the most from 13:00 to 16:00,with an average of approximately 1℃.Further,the denser the building is,the greater the temperature drop.

关键词： Electricity system Anthropogenic heat emission urban climate Heat waves

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Relationship between Meteorological Variables and Clearness Index for Four urban/Suburban Areas of Brazilian Cities

引用

Journal of Environmental Science and Engineering(B) 2012年第7期1卷 890-900页

作者： Francisco Jose Duarte Gomes Luciana Sanches Marcelo de Carvalho Alves Marta Cristina de Jesus Albuquerque Nogueira Jose de Souza Nogueira Department of Physics Federal University ofMato Grosso Cuiaba 78060-900 Brazil Department of Sanitary and Environmental Engineering Federal University of Mato Grosso Cuiaba 78060-900 Brazil Department of Soil and Rural Engineering Federal University of Mato Grosso Cuiaba 78060-900 Brazil Department of Architecture Federal University of Mato Grosso Cuiaba 78060-900 Brazil

This study aimed to examine the relationship between meteorological variables and the clearness index for three sites in Cuiaba city and one site in Chapada dos Guimaraes city, Brazil during 2007. It described the microclimate of each site on the basis of constructive elements and their surroundings, considering sky coverage using a daily clearness index. The results were that micrometeorological values were influenced by the natural elements and construction within the surrounding site, with higher air temperatures in more urbanized areas and sites with high diffuse radiation. When determining the sky coverage, on average, the days were partly cloudy or cloudy due to two reasons：（a） during the wet season, rainfall created cloudy conditions and （b） during the dry season, increases of particulates in the atmosphere as a result of anthropogenic emissions of gases and aerosols in this region of the state resulted in sky conditions classified as partly cloudy and cloudy. Future research should aim to better quantify the measurements taken inside an urban area, considering the topography and vegetation cover. This will improve the models that support urban planning, therefore favoring the thermal comfort of areas already occupied or to be urbanized.

关键词： Tropical climate urban climate cover sky microclimate.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

应对城市热岛效应及空气污染的城市通风道规划研究

引用

生态环境与保护 2014年第10期 24-30页

作者：陈宏周雪帆戴菲管毓刚

如今，50%以上的世界人口居住在城市中，而城市由于其特殊下垫面及人类活动影响存在一些特有的环境与气候问题，其中最为严重和明显的是城市热岛效应及空气污染问题。为了缓解这些问题，本文提供了一种城市尺度着手的调节策略：城市通... 详细信息

如今，50%以上的世界人口居住在城市中，而城市由于其特殊下垫面及人类活动影响存在一些特有的环境与气候问题，其中最为严重和明显的是城市热岛效应及空气污染问题。为了缓解这些问题，本文提供了一种城市尺度着手的调节策略：城市通风道。在城市中设计通风道，有助于打破城市热岛环流帮助城郊凉爽气流渗入，提高城市内空气的流动性，增加城市绿化率，分割大面积城市空间，消除热岛的规模效应及叠加作用。本文浅析了城市通风道建立的必要性，对城市环境、气候的调节作用，给出了通风道设计的原则和设计策略，最后提供了一个简单的案例开拓研究思路。

关键词：城市通风道城市气候城市环境城市尺度气象模拟 urban ventilation corridor urban climate urban environment mesoscale meteorology simulation

来源：人大复印报刊资料评论

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

urban Design Embracing the Wind Environment: Bezigrad Neighbourhood Case Study in Ljubljana, Slovenia

引用

Research in Ecology 2020年第2期2卷 23-31页

作者： Kristijan Lavtižar Faculty of Architecture Department of UrbanismUniversity of Ljubljana 1000 LjubljanaSlovenia

urban climate is considered one of the most important environmental criteria in urban planning,since it significantly affects the project and its placement in the *** conditions are central to the study,with winds in the urban environment,their direction,intensity and changes taken into consideration designing the new interventions in *** results of the case study were applied to the project with the intention of supporting and guiding the urban design in order to improve the comfort and quality of the *** this article,I explore the question of how individual morphological models affect the micro-and macroclimate *** initial urban solution of the Novi Bezigrad neighbourhood is presented as a realistic model project responding to the existing urban and architectural practices and legal *** project was tested in a computer model and was analysed in terms of the positive and negative effects of its impact on the wind in the planning area and the wider area in the surrounding *** final urban design derives from the results of wind analysis.

关键词： urban climate Wind theory Typology of buildings Morphology Landscape

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：