System development for the whole atmospheric boundary layer observation and study on the coherent structure of atmospheric turbulence

全大气边界层观测与大气湍流相干结构研究系统研制

• 批准号: 12559004
• 负责人: UEDA Hiromasa
• 金额: $ 7.36万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12559004/
• 关键词: Atmospheric boundary layer; Boundary layer rader; MU rader; RASS; Turbulent flux measurement; Coherent structure; Atmospheric turbulence; Large eddy simulation; 大気乱流境界層; 観測システム開発; 境界層レーダー; ドップラーソーダ; 乱流変動成分; 乱流輸送機構; 密度成層効果; 乱流の組織構造; 乱流フラックス

System development for the whole atmospheric boundary layer observationObservation system of wind velocity, temperature, humidity and cloud physical properties was established. It consisted of the MU rader, boundary layer rader BLR, BASS and laser rader, Technological refinements were made for the measurement of those properties over the whole troposphere and the lower stratosphere in a short period (e.g. 2min) and the high performance was confirmed for the measurements of vertical profiles of their time fluctuations and so statistical properties like turbulent fluxes not only under cloudy and rainy conditions but also dear sky conditions.Study on the coherent structure of atmospheric turbulenceBy means of the above-mentioned system, together with large eddy simulation LES, coherent structure of the atmospheric turbulence was investigated. Wavelet analysis method was used to detect the coherent structure. It was found that the coherent structure is similar to that detected in the laboratory experiments. It can be scaled by the outer parameter such as boundary layer thickness and mean velocity. The busting period

建立了风速、温度、湿度和云物理特性的观测系统。它由MU雷达、边界层雷达BLR、BASS和激光雷达组成，为了在短时间内测量整个对流层和平流层下部的这些特性，进行了技术改进（例如2分钟）高性能的时间波动的垂直廓线的测量和统计特性，如湍流通量，不仅在多云和下雨的条件下，大气湍流相干结构的研究利用上述系统，结合大涡模拟LES，研究了大气湍流的相干结构。采用小波分析方法检测相干结构。结果表明，相干结构与实验室实验中观测到的相干结构相似。它可以用边界层厚度和平均速度等外部参数来标定。破产时期

项目成果

Terada, H., Ueda, H., Wang.Z.: "Trend of acid rain and neutralization by yellow-sand in East Asia --A numerical study --"Atmospheric Environment. 36・3. 503-509 (2002)

寺田H.、上田H.、王Z.：“东亚地区酸雨的趋势和黄沙中和——数值研究——”大气环境36・3（2002）。

Hanazaki,H.: "Linear processes in stably and unstably stratified rotating turbulence."J.Fluid Mech.. (accepted). (2001)

Hanazaki,H.：“稳定和不稳定分层旋转湍流中的线性过程。”J.Fluid Mech..（已接受）。

Recirculation eddies generated by solitary waves in a rotating fluid

旋转流体中孤立波产生的再循环涡流

• 发表时间: 2003
• 期刊: J.Phys.Soc.Japan 72・3
• 作者: Hanazaki;H.
• 通讯作者: H.

Simulations of monthly mean nitrate concentrations in precipitation

降水中月平均硝酸盐浓度的模拟

• 发表时间: 2003
• 期刊: Atmospheric Environment 37・2
• 作者: An J.;Ueda;H.;Wang;Z.;Matsuda;K.;Kjino;M.
• 通讯作者: M.

第2章水の大循環サイクルと水資源、「水文大循環と地域水代謝」(丹保憲仁編)

第2章：一般水循环与水资源，《一般水文循环与区域水代谢》（炭房典人主编）

• 发表时间: 2003
• 作者: Hanazaki;H.;植田洋匡
• 通讯作者: 植田洋匡