Improvement of the humidity estimation method by applying radar imaging method

应用雷达成像法改进湿度估算方法

• 批准号: 24740321
• 负责人: FURUMOTO Jun-ichi
• 金额: $ 2.91万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24740321/
• 关键词: 水蒸気; レーダー; イメージング; 干渉計; RASS; MUレーダー; 気球観測; 極端気象; ゲリラ豪雨; 大気レーダー; 突風災害; ウインドプロファイラ; リモートセンシング; 降雨; 豪雨

This study aims to improve the vertical resolution of radar measurement by applying variational assimilation method to the oversampled radar data to implement the humidity estimation with the wind profiling radar with the higher precision. The conventional method to improve vertical resolution of radar measurement does not consider the radar parameter conservativeness, which is essential for the quantitative evaluation of radar data. Our newly developed algorithm is tested by the quasi-radar data generated from data of balloon measurement, showing the excellent performance of our method. We also aimed the improvement of humidity estimation with the radar in the aspect of the elucidation of generation mechanism in clear-air echo. The hyper-high-resolution radiosonde observation is conducted simultaneously with the radar measurement. The preliminary results shows the good coincide, and the further analysis is very promising to improve humidity estimation with the wind profiling radar

这项研究旨在通过将变异同化方法应用于过采样的雷达数据来改善雷达测量的垂直分辨率，以使用风谱雷达更高的精度来实现湿度估计。改善雷达测量的垂直分辨率的常规方法并不考虑雷达参数保守性，这对于雷达数据的定量评估至关重要。我们新开发的算法通过气球测量数据产生的准雷达数据测试，显示了我们方法的出色性能。我们还旨在在透明空气回声中阐明发电机理的方面与雷达的湿度估计改善。超高分辨率的辐射观察观察是通过雷达测量同时进行的。初步结果表明了良好的重合，进一步的分析非常有希望可以通过风谱雷达来提高湿度估计

项目成果

Observations of migrating katabatic winds using a dense monitoring network

使用密集监测网络观测移动下降风

• 发表时间: 2014
• 期刊: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
• 影响因子: 5.5
• 作者: Furumoto;J.;H. Sakamoto;K. Higashi;H. Tsuboya;K. Kano;Y.Kikkawa;J. Ishihama;Y. Kaneko;H. Hashiguchi;and M. Yamamoto
• 通讯作者: and M. Yamamoto

Three-dimensional radar imaging of atmospheric layer and turbulence structures using multiple receivers and multiple frequencies

使用多个接收器和多个频率对大气层和湍流结构进行三维雷达成像

• 发表时间: 2014
• 期刊: Annales Geophysicae
• 影响因子: 1.9
• 作者: J. S. Chen;J. Furumoto;and M. Yamamoto
• 通讯作者: and M. Yamamoto

Improvement of Vertical Resolutions in Wind Profiling Radars to Detect Detailed

提高风廓线雷达的垂直分辨率以检测详细信息

• 发表时间: 2013
• 作者: Kouketsu;T.;M. Oue;T. Ohigashi;K. Tsuboki;H. Minda;H. Uyeda;K. Suzuki;Y. Wakazuki;and E. Nakakita;Jun-ichi Furumoto
• 通讯作者: Jun-ichi Furumoto

Extraction of horizontal wind velocities from a multi receiver phased array radar system using post beam steering technique and efficiency of various beam forming methods

使用后波束控制技术从多接收机相控阵雷达系统中提取水平风速以及各种波束形成方法的效率

• 发表时间: 2013
• 期刊: IEEE Trans. on Geosci. and Remote Sens.
• 作者: Anandan;V.K.;VN. Sureshbabu;T. Tsuda;and J. Furumoto
• 通讯作者: and J. Furumoto

ウィンドプロファイラの側方放射を利用した水蒸気推定手法に関する研究

利用风廓线仪侧向辐射的水汽估算方法研究

• 作者: 伊中茂;古本淳一;瀬古弘;津田敏隆;橋口浩之;石原正仁
• 通讯作者: 石原正仁