Based on the high temperature data of June to August in 1961-2000 in North China, the high temperature weather processes are investigated, and a more complete data set for severe high temperature processes is created....Based on the high temperature data of June to August in 1961-2000 in North China, the high temperature weather processes are investigated, and a more complete data set for severe high temperature processes is created. The climatic characteristics of adverse high temperature weather in Beijing, Tianjin, Shijiazhuang, Jinan and Taiyuan are analyzed respectively. The major features of the East-Asia Subtropical High and Transformed Continental High are discussed. The outcomes indicate that the influence of both East Asia Subtropical High and Transformed Continental High on these weather events varies, by a larger margin, from one city to another over North China and they are also closely related to the relative humidity. It is found that the behaviours of East-Asia Subtropical High and Transformed Continental High are the major important systems that give rise to the summer high temperature weather over the region. Based on these findings, the 5-day, 10-day and monthly assessment models for such high impact events have been developed. The assessment outcomes prove to be useful in assessing severe high-temperature events in major cities of North China.展开更多
This paper introduced basic situation and challenges of Block 9, Dongdajie, Chengdu City, expounded basic definition and design concept of "place making", briefed the design scheme from three aspects, namely...This paper introduced basic situation and challenges of Block 9, Dongdajie, Chengdu City, expounded basic definition and design concept of "place making", briefed the design scheme from three aspects, namely planning layout, space environment and architectural style, and concluded the application of the idea of "place making" in Block 9 design scheme in view of the multi-functional urban complex with high plot ratio.展开更多
High buildings or architectural complex in urban areas remarkably distort the urban surface wind fields.As the air flow approaches,local strong wind may appear around the buildings.The strong wind makes the pedestrian...High buildings or architectural complex in urban areas remarkably distort the urban surface wind fields.As the air flow approaches,local strong wind may appear around the buildings.The strong wind makes the pedestrians on sidewalks,entrances and terrace very uncomfortable and causes the pedestrian level wind environment problem.In this studies,hot-wire wind measurement,wind scouring in wind tunnel and numerical computation were carried out to evaluate the wind environment of tall buildings in the prevailing flow conditions in Beijing areas.The results obtained by three techniques were compared and mutually verified.The conclusions drawn from three approaches agree with each other.Also the advantages and limitations of each method were analyzed.It is suggested that the combination of different techniques may produce better assessment of wind environment around high buildings.展开更多
CPC Central Committee and State Council: Promoting High-Quality Urban Development China's urbanization is transitioning from a phase of rapid growth to one of stable development, with urban development is shifting...CPC Central Committee and State Council: Promoting High-Quality Urban Development China's urbanization is transitioning from a phase of rapid growth to one of stable development, with urban development is shifting from large-scale incremental expansion to a stage mainly focused on enhancing the quality and efficiency of existing urban stock. To accelerate the transformation of urban development modes and promote high-quality urban development, the CPC Central Committee and the State Council issued the Opinions on Promoting High-Quality Urban Development on Aug. 15, 2025(hereinafter referred to as the Opinions).展开更多
基金The Additional Study of Short-term Climate Prediction System in China, No.96-908-06-04-05
文摘Based on the high temperature data of June to August in 1961-2000 in North China, the high temperature weather processes are investigated, and a more complete data set for severe high temperature processes is created. The climatic characteristics of adverse high temperature weather in Beijing, Tianjin, Shijiazhuang, Jinan and Taiyuan are analyzed respectively. The major features of the East-Asia Subtropical High and Transformed Continental High are discussed. The outcomes indicate that the influence of both East Asia Subtropical High and Transformed Continental High on these weather events varies, by a larger margin, from one city to another over North China and they are also closely related to the relative humidity. It is found that the behaviours of East-Asia Subtropical High and Transformed Continental High are the major important systems that give rise to the summer high temperature weather over the region. Based on these findings, the 5-day, 10-day and monthly assessment models for such high impact events have been developed. The assessment outcomes prove to be useful in assessing severe high-temperature events in major cities of North China.
文摘This paper introduced basic situation and challenges of Block 9, Dongdajie, Chengdu City, expounded basic definition and design concept of "place making", briefed the design scheme from three aspects, namely planning layout, space environment and architectural style, and concluded the application of the idea of "place making" in Block 9 design scheme in view of the multi-functional urban complex with high plot ratio.
基金supported by the Nat ional Key Basic Research Project(Grant No.TG1999045700)the Internat ional Cooperat ive Project(Grant No.2004DFA0610)the NSFC(Grant No.Project 40233030).
文摘High buildings or architectural complex in urban areas remarkably distort the urban surface wind fields.As the air flow approaches,local strong wind may appear around the buildings.The strong wind makes the pedestrians on sidewalks,entrances and terrace very uncomfortable and causes the pedestrian level wind environment problem.In this studies,hot-wire wind measurement,wind scouring in wind tunnel and numerical computation were carried out to evaluate the wind environment of tall buildings in the prevailing flow conditions in Beijing areas.The results obtained by three techniques were compared and mutually verified.The conclusions drawn from three approaches agree with each other.Also the advantages and limitations of each method were analyzed.It is suggested that the combination of different techniques may produce better assessment of wind environment around high buildings.
文摘CPC Central Committee and State Council: Promoting High-Quality Urban Development China's urbanization is transitioning from a phase of rapid growth to one of stable development, with urban development is shifting from large-scale incremental expansion to a stage mainly focused on enhancing the quality and efficiency of existing urban stock. To accelerate the transformation of urban development modes and promote high-quality urban development, the CPC Central Committee and the State Council issued the Opinions on Promoting High-Quality Urban Development on Aug. 15, 2025(hereinafter referred to as the Opinions).
