While radiosonde observation onboard the Mirai has been started since August 5, enhanced radiosonde soundings (from 12-hourly to 6-hourly) at Palau and Yap have also been started since August 6. In addition, it is expected to have another enhancement at PAGASA Legaspi site, Philippines soon.
Thank you, Palau Weather Service, Yap Weather Service, US/NOAA, and PAGASA for your great help and contributions!
According to the ECMWF report of geographical coverage of observations used for their data assimilation system, those enhanced sounding data have been successfully used by them! We can confirm three red dots in the tropical western Pacific, which were not appeared on the chart as of August 4.
During the R/V Mirai was at-berth at Shimizu Port from July 20 through 31, various observation tools were loaded and equipped. In particular, heavy instruments were loaded on July 30 using a crane truck.
This time, due to COVID-19 pandemic, on-board participants took PCR test prior to the cruise and all were proved as “negative.” Now everything has been set for the start.
The R/V Mirai MR20-E01 cruise is scheduled to depart on the morning of August 1, 2020. (KY)
The intensive observation in Laoag, Republic of the Philippines, as a part of YMC-BSM 2018 was successfully finished today. I appreciate all the staffs of PAGASA who participated in this project.
In addition to the 6-hourly radiosonde observation that started on July 1, a mobile X-band weather radar was in operation during the whole month of August, observing lots of convective signals around the city. Actually, monthly rainfall at the Laoag weather station in August is more than 1,000 mm, which is about three times as high as monthly climatology, according to the chief meteorological officer of the station. I look forward to analyzing the observed data to examine intraseasonal variability in rainfall and wind field, as well as diurnal cycle.
At Laoag, JAMSTEC has conducted surface meteorological observation with an AWS system for more than 10 years, which was of course a component of the intensive observation project. Although the project was finished, we continue the surface meteorological observation.
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)