Supercomputer Simulation for Reduction of Combined Thermal and Air Pollution in Urban Cities

减少城市热污染和空气污染的超级计算机模拟

基本信息

批准号：
02452121
负责人：
SAITOH Takeo
金额：
$ 3.07万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-02452121/
关键词：
Urban Warming Heat Island Remote Sensing Air Pollution 3-D Simulation Energy Consumption Future Prediction Supercomputing

项目摘要

The global warming rate in the past century was about 0.7 degree Celcius. On the contrary, the urban warming rate, for example in Tokyo was about 7 degree Celcius during the past century, which is one-order of magnitude higher than the global warming rate. This fact simply indicates the importance of controlling urban environment including urban warming, air pollution (NO_x, CO, CO_2, ., particulate), and transportation.The following conclusions may be drawn from the present study.(1) Three-dimensional computer program was developed for urban warming(heat island), which describes the flow, energy, and mass (concentration transport in the urban atmospheric boundary layer.)(2) The ambient temperature near the ground surface was measured via field observation method using automobiles. Tokyo metropolitan area and Sendai urban area were selected for this field observation.(3) The effect of reduction of air pollutant emission in the urban atmosphere was clarified by the between dimesional simulation. A significant reduction of maximum concentration of CO was seen, therefore indicating the importance of introducing of the super energy efficient vehicles in the urban area.(4) The surface ambient temperature distribution was obtained via the remote sensing data provided by LANDSAT-TM6.(5) The prediction of urban warming in the year of 2030-2060 in Tokyo was done by 3-D supercomputing using the computer code developed in this study. The prediction indicates that the ambient temperature at 18 : 00 in summer exceeds 40ﾟC, which would be fatal environment for the people who lives in Tokyo.

过去一个世纪的全球变暖率约为0.7度Celcius。相反，例如，在东京，城市变暖率在过去一个世纪中约为7度Celcius，这比全球变暖率高一级。 This fact simply indicates the importance of controlling urban environment including urban warming, air pollution (NO_x, CO, CO_2, ., particulate), and transport.The following conclusions may be drawn from the Present study.(1) Three-dimensional computer program was developed for urban warming(heat island), which describes the flow, energy, and mass (concentration transport in the urban atmospheric boundary layer.)(2) The ambient temperature near the ground surface was measured via使用汽车的现场观察方法。选择东京都会区和仙台城市地区进行此野外观察。（3）通过两次Dimesional模拟，阐明了城市气氛中空气污染物排放减少的影响。观察到最高CO的最高浓度的显着降低，因此表明在市区引入超级节能车辆的重要性。（4）通过Landsat-TM6提供的遥感数据获得了表面环境温度分布。（5）使用3-D超级计算机在2030-2060年进行了研究，该预测的预测是使用3-D超级计算来实现的，该预测使用了3-D超级计算。预测表明，夏季18：00的环境温度超过40°C，对于住在东京的人们来说，这将是致命的环境。