Study of the spatial structure of urban heat island in regional central cities by laser radar

激光雷达研究区域中心城市城市热岛空间结构

• 批准号: 03680208
• 负责人: KAI Kenji
• 金额: $ 1.54万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03680208/
• 关键词: laser radar; urban heat island; cloud chain; radar; レ-ザ-レ-ダ-

Recently, a chain of cumulus (called Kanpachi Gumo) frequently appears over the Kanpachi Street in Tokyo. From the case studies of the temperature and wind distributions in relation to the cloud chain in 1989, it is concluded as follows:1) The cloud chain appeared, when Japan Islands were covered with the Pacific high.2) The south-southewest sea breeze from Sagami Bay and the south-southeast sea breeze from Tokyo Bay formed a local convergence area along the Kanpachi Street during the daytime. Consequently, an ascending air current occurred around Kanpachi Street.3) A remarkable heat island was formed around Kanpachi Street during the day time. As a result, the convection was reinforced by the heat island circulation.The observation of the cloud chain over the Kanpachi Street was carried out by using low-level radio sound, pilot balloon, etc. during the summer in 1992. The main results are summarized as follows:4) The height of the cloud top was about 15000 m, and was about 500 m higher than that of the previous study.5) In the daytime, the convergence are of sea breezes from the Tokyo Bay and from the Sagami Bay existed over the Kanpachi Street.6) In the afternoon, high temperature zone was observed along the Kanpachi Street.In the present study, a portable laser radar for meteorological measurements in atmospheric boundary layer and troposphere has been developed. We succeeded to obrained vertical distribution of aerosols to show the structure of the urban heat island.

最近，在东京的坎帕奇街上经常出现一连串的积云（称为坎帕奇·古莫）。从1989年对云链的温度和风能分布的案例研究，如下所述：1）云链出现，当日本群岛被太平洋高覆盖时。因此，坎帕奇街附近发生了上升的空气电流。3）白天在坎帕奇街上形成了一个显着的热岛。结果，对流是通过热岛的循环加强的。对坎帕奇街上的云链的观察是通过使用低级无线电声音，飞行员气球等在1992年的夏季进行的。主要结果总结如下。东京湾和来自萨加米湾的来自坎帕奇街上。6）下午，沿着坎帕奇街观察到高温区。在本研究中，已经开发了一种用于气象测量的便携式激光雷达，用于大气边界层和对流层的气象测量。我们成功地遵守了气溶胶的垂直分布，以展示城市热岛的结构。

项目成果

KAI,K.,SHIMODA,S,ABO,M.: "Development of a portable lidar system and its application to field measurements" IAMAP・IAHS‘93. (1993)

KAI, K., SHIMODA, S, ABO, M.：“便携式激光雷达系统的开发及其在现场测量中的应用”IAMAP·IAHS‘93 (1993)。

KAI,K.S.SHIMODA and M.ABO: "Development of a portable lidar system and its application to field measurement." IAMAP-IAHS"93 Proceedings. (1993)

KAI、K.S.SHIMODA 和 M.ABO：“便携式激光雷达系统的开发及其在现场测量中的应用。”

甲斐 憲次,下田 晋也,阿保 真: "高出力半導体レーザーを用いた可搬型ライダーの開発とフィールド観測への応用" 日本地理学会予縞集. 43. 112-113 (1993)

Kenji Kai、Shinya Shimoda、Makoto Abo：“使用高功率半导体激光器的便携式激光雷达的开发及其在现场观测中的应用”日本地理学会杂志 43. 112-113 (1993)。

Kai, K., S. Shimoda and M. Abo,: "Development of a portable radar system and its application to field measurement." IAMAP-IAHS 93 Proceedings.

Kai, K.、S. Shimoda 和 M. Abo，：“便携式雷达系统的开发及其在现场测量中的应用。”

日置江 桂,甲斐 憲次,河村 武: "環状八号線道路上空に発生する雲(環八雲)に関する研究" 日本地理学会予縞集. 43. 92-93 (199)

Katsura Hioki、Kenji Kai、Takeshi Kawamura：“对环城 8 号道路（环八云）上方出现的云的研究”日本地理学会 Yoshimashu 43. 92-93 (199)。