Japan Geoscience Union Meeting 2015

Presentation information


Symbol A (Atmospheric and Hydrospheric Sciences) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS22] Hyper-dense observation and forecast to elucidate micro-scale atmospheric phenomena

Mon. May 25, 2015 2:15 PM - 4:00 PM 301A (3F)

Convener:*Jun-ichi Furumoto(Research Institute for Sustainable Humanosphere, Kyoto University), Nobumitsu Tsunematsu(Tokyo Metropolitan Research Institute for Environmental Protection), Kentaro Araki(Forecast Research Department, Meteorological Research Institute, Japan Meteorological Agency), Chair:Nobumitsu Tsunematsu(Tokyo Metropolitan Research Institute for Environmental Protection)

3:30 PM - 4:00 PM

[AAS22-06] Lidar development for hyper-dense remote observation of urban atmosphere

*Makoto ABO1, Tatsuya KIKUTA1, Kouki ARUGA1, LE HOAI, Phong PHAM1 (1.Tokyo Metropolitan University)

Keywords:hyper-dense observation, lidar, atmospheric temperature, water vapor density, remote sensing

Information of atmospheric temperature and water vapor density are most important factor for the prediction of air pollution, an analysis of the nature of the heat island phenomenon and the prediction of localized heavy rain in urban area. We are developing practical instruments for remote measurements of atmospheric temperature and water vapor density distributions with sub-kilometer range resolution.
For water vapor concentration distribution measurement, we propose a differential absorption lidar (DIAL) using diode laser based transmitters. For temperature measurements in daytime, we propose a high-spectral-resolution lidar (HSRL) using a potassium Faraday filter. The Faraday filter acts as a blocking filter for suppression of narrow Mie scattering, and a very narrow filter for getting temperature information from Doppler-broadened Rayleigh spectrum.