Construction of the snowfall phenomenon measuring system in the lowest atmospheric using three radars

Research Project

Project/Area Number	26420404
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Measurement engineering
Research Institution	National Institute of Technology, Toyama College
Principal Investigator	SHIINA TORU 富山高等専門学校, 電子情報工学科, 教授 (80196344)
Project Period (FY)	2014-04-01 – 2017-03-31
Project Status	Completed (Fiscal Year 2016)
Budget Amount *help	¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000) Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000) Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000) Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords	計測システム / レーダ / 降雪現象 / ドップラーレーダ / 小型垂直レーダ / 降雪粒子
Outline of Final Research Achievements	We developed the new snowfall phenomenon measuring system in the lowest atmospheric layer. The radar reflectivity factor and spectrum were measured using three small K-band Doppler radars and lidar. The image of falling snow particles were simultaneously captured to measure size and falling velocity. Furthermore, the rainfall particle information with the weather sensor was analyzed. The precipitation intensities of rainfall and snowfall were calculated. The radar reflectivity factors of radar and lidar were compared with these intensities.