RESEARCH ASSOCIATES:
Ichiro Matsui, Atsushi Shimizu, Yen Cheng, Toshiyuki Murayama, Kazuhiro Asai, Kimio Arao

MAILING ADDRESS:
National Institute for Environmental Studies
16-2 Onogawa, Tsukuba, Ibaraki 305-8506 Japan

TELEPHONE NUMBER:
+81-298-50-2459

FAX NUMBER:
+81-298-50-2579

E-MAIL ADDRESS:
nsugimot@nies.go.jp

WEB SITE: http://info.nies.go.jp:8094/

DATE: August 12, 2001

LIDAR LOCATION (CITY, COUNTRY, LAT., LONG.):
Tsukuba, Japan, 36.05N, 140.12E/ Nagasaki, Japan, 32.78N, 129.86E/ Beijing, China, 39.9N, 116.3E/ Shipboard (mostly in the western Pacific)

SITE ELEVATION:
Sea level

PARAMETER(S) OR CONSTITUENT(S) MEASURED:
Tropospheric aerosols and clouds, Mie scattering, depolarization ratio, wavelength dependence of Mie scattering, cloud particle size (experimental)

RESEARCH OBJECTIVES AND SPONSOR:
Aerosol and cloud climatology , Asian dust and regional air pollution, aerosol-cloud interaction,…/Ministry of the Environment, Ministry of Education, Culture, Sports, Science and Technology…

MEASUREMENT TECHNIQUE: Dual-polarization Mie scattering lidar, bistatic lidar (experimental) , high spectral resolution lidar (experimental)

MEASUREMENT RANGE: 0-24 km

VERTICAL RESOLUTION: 6 m

FREQ. OF MEASUREMENT (TYPICALLY): Continuous (Tsukuba, Nagasaki, Beijing) / 2-4 cruises (approx.3 months) a year (shipboad)

MEASUREMENT TIMES (TYPICALLY): Continuous (night and day, rain or shine) (operated 5 min every 15 min in Tsukuba, Nagasaki, Beijing) / Continuous (10 sec resolution)

LASER TYPE AND WAVELENGTH (s): Second harmonic Nd:YAG lasers,
532 nm (Tsukuba, Beijing)/ 532nm and 1064 nm (Nagasaki, shipboard)

LASER ENERGY/PULSE: 50 mJ (532 nm)/ 100 mJ (1064 nm)

PULSE REPETITION RATE: 10 Hz

RECEIVER SIZE AND CONFIGURATION: 35 cm (Tsukuba) / 25 cm (shipboard)/ 20 cm (Nagasaki, Beijing), Schmidt Cassegrain

DETECTORS USED: Photomultiplier tubes Hamamatsu H6780 (532 nm), Avalanche photodiodes EG&G C30919E (1064 nm)

SIGNAL PROCESSING: Analog, 25 MHz band-pass filter

ANALOG-T0-DIGITAL CONVERTER: Digital oscilloscopes (8 bits, 500 MS/s, typical)

COMPUTER: personal computers

PLATFORM (if applicable): ground-based (Tsukuba/ Nagasaki/ Beijing)
Research vessel Mirai (operated by Japan Marine Science and Technology Center)

PUBLICATIONS (5 recent and/or significant):
N. Sugimoto, I. Matsui, Z. Liu, A. Shimizu, S. Sakida, T. Murayama, I. Tamamushi and K. Asai: Observation of Sea-Salt Aerosols in the Tropical Western Pacific with a Shipborne Two -Wavelength Dual-Polarization Mie Scattering Lidar, in Advances in Laser Remote Sensing, Eds. A. Dabas, C. Loth, and J. Pelon (Edition de l'Ecole polytechnique 2001).

N. Sugimoto, I. Matsui, A. Shimizu, M. Pinandito, S. Sugondo: Climatological Characteristics of Cloud Distribution and Planetary Boundary Layer Structure in Jakarta, Indonesia Revealed by Lidar Observation, Geophys. Res. Lett.,27 (18), 2909-2912 (2000).

M. Pinandito, I. Rosananto, I. Hidayat, S. Sugondo, S. Asiati, A. Pranowo, I. Matsui, and N. Sugimoto: Mie Scattering Lidar Observation of Aerosol Vertical Profiles in Jakarta, Indonesia, Environmental Science 13 (2), 205-216 (2000).

N. Sugimoto: Two-Color Dual-Polarization Pulsed Bistatic Lidar for Measuring Water Cloud Droplet Size, Optical Review 7 (3), 235-240 (2000).

Z. Liu, P. Voelger and N.Sugimoto: Simulations of the Observation of Clouds and Aerosols with the Experimental Lidar in Space Equipment (ELISE), Applied Optics 39 (18), 3120-3137 (2000).