Development of field deployable next generation water vapor lidar for heavy rain prediction

2016 Fiscal Year Final Research Report

• Project/Area Number: 26282115
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Japan, Meteorological Research Institute
• Principal Investigator: SAKAI Tetsu 気象庁気象研究所, 気象衛星・観測システム研究部, 主任研究官 (00377988)
• Co-Investigator(Kenkyū-buntansha): 阿保 真 首都大学東京, システムデザイン研究科, 教授 (20167951) ; 永井 智広 気象庁気象研究所, 気象衛星・観測システム研究部, 室長 (30343891)
• Co-Investigator(Renkei-kenkyūsha): SEKO Hiromu 気象庁 気象研究所, 予報研究部, 室長 (60354445) ; KAWABATA Takuya 気象庁 気象研究所, 予報研究部, 主任研究官 (80354447) ; NAGASAWA Chikao 首都大学東京, システムデザイン研究科, 客員教授 (80145664) ; SHIBATA Yasukuni 首都大学東京, システムデザイン研究科, 准教授 (10305419)
• Research Collaborator: UCHINO Osamu 気象庁 気象研究所, 気象衛星・観測システム研究部, 客員研究員
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 局地的大雨 / 水蒸気 / リモートセンシング / ライダー

Outline of Final Research Achievements

For early prediction of localized heavy rainfall that can cause extensive damages, we have developed a compact lidar that continuously measures the vertical distribution of water vapor density in the lower troposphere. The lidar is compact and light weight by employing a laser diode and amplifier for the transmitter. The result of test measurements in the summer of 2016 in Tokyo showed that it can measure the vertical distribution of water vapor between 0.6 and 3 km in night and 0.6 and 1.3 km in day with temporal resolution of 10 minutes and vertical resolution of 150 m. The lidar is shown capable of continuous operation over a month.

Free Research Field

大気科学