YMC-BSM in Vietnam is finished

We successfully finished the YMC-BSM observation in Ha Noi and Ho Chi Minh, Vietnam. The obtained data will be utilized in the study on the water and ozone transportation due to the Asian summer monsoon. I thank all the staff of the Vietnam Meteorological and Hydrological Administration for their great effort in getting the valuable data. (SYO)





YMC-BSM in Vietnam

We have been conducting upper air ozone and water vapor soundings in Ho Chi Minh and Hanoi, Vietnam in collaboration with Vietnam Meteorological and Hydrological Administration. The purpose of this observation is to clarify the ozone and water vapor exchanges between the mid-latitude stratosphere and the tropical troposphere associated with the Asian summer monsoon circulation. We started the observation on June 29 at the Ho Chi Minh observatory and on July 2 in the Hanoi observatory, and have been launching the balloons once in two days at the both observatories. (SYO)












Start of intensive observation at Laoag, Philippines

Laoag is a coastal city facing the South China Sea in the northwest of Luzon Island, Philippines. There is a weather station of PAGASA nearby Laoag International Airport, where SYNOP and twelve-hourly radiosonde observations are usually performed.

As a part of the YMC-BSM2018, JAMSTEC, PAGASA, and UP are jointly conducting an intensive observation campaign in July and August of 2018 at the weather station. It consists of six-hourly radiosonde sounding during the two-month period, X-band weather radar observation in August, and inter-comparison of radiosonde sensors manufactured by several companies.

I have visited Laoag and commemorated the start of the campaign by doing a kind of “balloon release” ceremony, using a balloon (with sensor/transmitter) for the first radiosonde observation :P.

The images are (upper left) the Laoag weather station, (lower left) “balloon release” ceremony, and (right) data of the first radiosonde.


Farewell to Indonesia

Forty days passed swiftly by since R/V MIRAI entered Indonesian EEZ, and today she left it. We have made lots of observations during the period, including more than 350 radiosonde soundings, more than 220 CTD casts, more than 220 TurboMAP casts, and nearly 9,000 volume scans of weather radar. Luckily, we performed almost all of the observation items we had planned, and we completed 3-hourly routine observations without missing data at the station point. Our final radiosonde launch was done in the presence of the captain and security officer, only 2 hours before the leaving, which was successful as usual. I, as the chief scientist of this research cruise, am most grateful to all of the researchers, technicians, and vessel crew from the captain on down for their great efforts. (Satoru Yokoi)

Happy New Year from Bengkulu and Happy Rain Coming!

After 2 weeks off from Bengkulu, I came back here again for continuing the radar and balloon observation. The situation was slightly changed from last month, it was dry and less rainfall last month but when I came here three days ago, the condition much more humid, cloudy, even rain like today. We just have rain with strong wind around 11 AM today.

During the observation at BMKG Fatmawati, young observer come here to study about rawinsonde launching, they are university students from Bengkulu University. One of the BMKG Staff teach them how to operate the system and launch the balloon, they look happy, enthusiasm, and eager to learn. They may become new scientist in the future! (Credit photos by Dr. Wu). RS.

We deeply appreciate Indonesian colleagues’ support

Indonesian colleagues from BPPT and BMKG visited the R/V Mirai at Jakarta port today. The chief scientist, Dr. Satoru YOKOI, expressed our deep appreciation for their great support and emphasized the importance of continuous cooperation for the air-sea interaction observations. Indonesian colleagues made a tour of the vessel’s equipments and fruitful discussion with us. Again, thank you very much for your cooperation.