Outline In Situ Satellite NICAM Photo Gallery Blog

YMC-BSM (Boreal Summer Monsoon study in) 2018

YMC-BSM 2018 is designed to study boreal summer monsoon by conducting various observations at selected sites, where local unique phenomena are often observed. One key topic is atmospheric convection associated with northward propagating Boreal Summer Intraseasonal Oscillation (BSISO). To study offshore propagation of diurnal cycle of rain and its relation to BSISO, Doppler radar will be deployed in the west coast of the northern Luzon, Laoag area, while radiosonde soundings will be enhanced both at Laoag and Koror, Palau. In addition, three autonomous unmanned surface vehicles will be launched from Palau to occupy 8/10/12N along 132E, where surface meteorology as well as ocean surface current will be measured to study air-sea interaction.
On the other hand, interaction between upper troposphere - lower stratosphere is intensively studied by launching special sondes equipped with ozone-sensor and high accurate hygrometer at Hanoi, Ho Chi Ming in Vietnam, and at Kototabang, Indonesia.
July 1 - August 31, 2018
Indonesia - LAPAN, BMKG

Japan - JAMSTEC, Kyoto University, NME Ltd.
Palau - Koror Weather Service

Philippines - PAGASA, University of the Philippines

Vietnam - National Hydro-Meteorological Service

Observation Network
PAGASA Laoag site
X-band Doppler radar(*1), Radiosonde(*2), GNSS-derived water vapor, Surface meteorology.
*1 ... Radar operation is performed only in August.
*2 ... Radiosonde soundings are conducted every 6 hours for entire 2 months. Intercomparison among several types of radiosonde will be performed.
Radiosonde (4 times/day), Lidar, Disdrometer, Surface meteorology.
Three Unmanned Surface Vehicles (wave-glider) equipped with surface meteorological station, GNSS receiver, and ADCP will be launched from Palau to occupy 8/10/12N along 132E. Their location may change to look for meso-scale SST gradient.
Equatorial Atmosphere Observatory at Kototabang
Equatorial Atmosphere Radar (EAR), CFH-Ozone-CPS sonde (10 times during July 13-27)
VHMS Hanoi & Ho Chi Minh sites
Ozone sonde (15 times at each site)
Numerical Modeling
During the IOP, numerical forecast using NICAM will be performed. See more NICAM page
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