TY - JOUR
T1 - Depolarization Ratio of Clouds Measured by Multiple-Field of view Multiple Scattering Polarization Lidar
AU - Okamoto, Hajime
AU - Sato, Kaori
AU - Makino, Toshiyuki
AU - Nishizawa, Tomoaki
AU - Sugimoto, Nobuo
AU - Jin, Yoshitaka
AU - Shimizu, Atsushi
N1 - Funding Information:
This work was supported in part by the JSPS Kakenhi Grant Numbers 25247078 and 15K17762 and also supported by the Collaborated Research Program of Research Institute for Applied Mechanics, Kyushu University.
Publisher Copyright:
© 2016 Owned by the authors, published by EDP Sciences.
PY - 2016/6/7
Y1 - 2016/6/7
N2 - We have developed the Multiple Field of view Multiple Scattering Polarization Lidar (MFMSPL) system for the study of optically thick low-level clouds. It has 8 telescopes; 4 telescopes for parallel channels and another 4 for perpendicular channels. The MFMSPL is the first lidar system that can measure depolarization ratio for optically thick clouds where multiple scattering is dominant. Field of view of each channel was 10mrad and was mounted with different angles ranging from 0 mrad (vertical) to 30mrad. And footprint size from the total FOV was achieved to be close to that of Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) lidar at the altitude of 1km in order to reproduce similar degree of multiple scattering effects as observed from space. The MFMSPL has started observations since June 2014 and has been continuously operated at National Institute for Environmental Studies (NIES) in Tsukuba, Japan. Observations proved expected performance such that measured depolarization ratio was comparable to the one observed by CALIPSO lidar.
AB - We have developed the Multiple Field of view Multiple Scattering Polarization Lidar (MFMSPL) system for the study of optically thick low-level clouds. It has 8 telescopes; 4 telescopes for parallel channels and another 4 for perpendicular channels. The MFMSPL is the first lidar system that can measure depolarization ratio for optically thick clouds where multiple scattering is dominant. Field of view of each channel was 10mrad and was mounted with different angles ranging from 0 mrad (vertical) to 30mrad. And footprint size from the total FOV was achieved to be close to that of Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) lidar at the altitude of 1km in order to reproduce similar degree of multiple scattering effects as observed from space. The MFMSPL has started observations since June 2014 and has been continuously operated at National Institute for Environmental Studies (NIES) in Tsukuba, Japan. Observations proved expected performance such that measured depolarization ratio was comparable to the one observed by CALIPSO lidar.
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U2 - 10.1051/epjconf/201611911007
DO - 10.1051/epjconf/201611911007
M3 - Conference article
AN - SCOPUS:84976317494
SN - 2101-6275
VL - 119
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
M1 - 11007
T2 - 27th International Laser Radar Conference, ILRC 2015
Y2 - 5 July 2015 through 10 July 2015
ER -