Presentation on theme: "Nowcasting in Vietnam Mr. Hoang Phuc Lam Short-range Meteorological Forecasting Division National Center for Hydro-Meteorological Forecasting (NCHMF) Vietnam."— Presentation transcript:
Nowcasting in Vietnam Mr. Hoang Phuc Lam Short-range Meteorological Forecasting Division National Center for Hydro-Meteorological Forecasting (NCHMF) Vietnam Hydro-Meteorological Service (VHMS)
VHMS Organization MoNRE VHMS IT CenterData Center… 9 Regional Centers 54 Provincial Centers NCHMF AMO International Cooperation
NCHMF Missions Regular monitoring the hydro-meteorological conditions over the whole country and related areas. Issuing hydro-meteorological forecasts, warnings and advisories as assigned for the disaster prevention and preparedness, socio- economic development, and national defense security. Carrying out researches and applications of new technologies on hydro-meteorological forecasting. Supplying instructions on operational hydro-meteorological forecasting; and validating the implementation of these instructions at Regional and Provincial Hydro-meteorological Centers. Organizing training courses on operational hydro-meteorological forecasting. Accomplishing international cooperation projects and programs on hydro-meteorological forecasting.
Aero-Meteorological Observatory (AMO) Missions Ensure the aero-meteorological observation stations over the whole country to be ready in all conditions. Monitoring and collecting data of radar network over the whole country. Cooperate with NCHMF for issuing severe weather forecasts, warnings and advisories for the disaster prevention and preparedness, socio-economic development, and national defense security. Carrying out researches and applications of new technologies on aero-meteorology. Organizing training courses on radiosonde and radar data for operators and forecasters.
Department of Science and Technology and International Cooperation Missions Science and Technology Orienting HMSs research to server the following areas: Improving forecast quality for disaster prevention and mitigation Improving data quality, exploiting efficiently the existing equipments... International Cooperation Implementing and/or orienting HMSs international cooperation in improving data observation and forecast system Strengthen and expand cooperation with other countries and international organizations in the form of bilateral and multilateral Expanded cooperation with international organizations (WMO, UNESCAP, UNESCO, UNEP, IHP, Typhoon Committee, ASCMG, etc.) and countries (ASEAN, France, Japan, Italy and Norway, Russia, China, Australia United States,...) in the field of Hydro- Meteorology and Environment...
Nowcasting Status Radar Network 07 Radar – 03 conventional and 04 Doppler radars 01 conventional radar from the Airport Data quality is not good (noise, topographic effect, old radar…) Upper-air Observational Network 5 stations (3 main stations with 2 obs/day and the other 2 is only 1 obs/day) Satellite (receivers set up right inside NCHMF) MTSAT (Japan) FY2 (China) NWP Global models (Japan, US, US Navy, Canada, Germany, Australia) Regional models (HRM, WRF...)
7 Radar Network (Current and Outlook till 2020) Current Radars Proposed Radar sites Conventional (Reflectivity) Radars (Thompson (French) radars) Doppler Radars (most of them are C-band – EEC)
Upper-Air Observation Network Current stations Proposed stations
Satellite images (MTSAT) Every 30 minutes
Satellite images (FY-2) Every 30 minutes
Synoptic Data - 6 hours - 3 hours (some) Hanoi Capital Area – 5 stations from 2008
Some Climatic Statistic about Tropical Cyclones Landfall Tropical cyclone from 1991 to 2010 Yellow color: TD (force 6 Beaufort scale) Red color: Typhoon (force 12 and above)
Annual Thunderstorm Days for North Vietnam
Annual Thunderstorm Days for Central Vietnam
Annual Thunderstorm Days for South Vietnam
Flood in Nov 2008
Flood in July 2010
Flood in Jul and Aug 2009
Nowcasting for Hanoi Area: Trial phase - Start date: July, Reasons for nowcasting: - Hanoi is capital and administrative and politic center of Vietnam. - Evening thunderstorm caused heavy rain and flood for Hanoi urban area (1 st Nov 2008 – historical flood, 12 th July 2010, 20 th July and 15 th Aug ) - Area: Hanoi capital - Focus phenomena: Thunderstorm, Heavy rain - Data: - Satellite images (MTSAT, FY2): about 15 minutes/image - 3 reflectivity radars: Vit Trì, Ph Lin, Ni Bài - synoptic observations (every 3 hours or telephone (if required) ) - 15 automatic rain-gauges (since Oct 2010) - Information Transmission to Public: - NCHMF Website - Radio channel (Voice of Vietnam – VOV) (live interview) - No actual supporting tool for forecaster in nowcasting!
First Challenge in years Anniversary of Hanoi Captital (01 st – 10 th October, 2010) NCHMF and AMO coordinate implementation Details: - 15 automatic raingauges and 02 temporary AWSs in Ba Đình and M Đình areas - Test period: 20 th Sep – 30 th Sep, In normal conditions: - Warning issued every 6 hours - Information sent directly to Local Organization Committee via and fax - In thunderstorm/ heavy rain conditions: - Warning issued every hours - Information was published on NCHMF website and VOV radio channel also
Vit Trì radars image 01 st Oct 2010
First Idea of Nowcasting Implementation - Attending Radar and Nowcasting Workshop in Cairns, Australia, 1-4 Aug 2007 hosted by BoM and Gematronik -Working with Mr. Tom Yoshida, retired Meteorologist in charge of Guam Meteorology Department in 02 radar interpretation training workshop in Hanoi (2005 and 2008) - Nowcast experiment in – 2012 Modernization Project of HMS on: - Observation network - automatic stations (focus on Hanoi area) - 4 – 5 doppler radars (new and upgrade) - Telecommunication system - Data processing and archive system - Regional/ city NWP models - Forecasting Technology -… Hopefully, all data will be available for operational system! NCHMF need a tool for nowcasting! I suggested VHMS to use TITAN and/or TIFS
Related Projects 1.VHMS and FMI project (PROMOSERV) on: Maintenance and calibration of automatic weather stations, use of radars, and career development of personnel 2.VHMS and KMA project on: Forecasters Analysis System (FAS) for Vietnam Typhoon join-Research in which KMA support Vietnam TAPS-2 (Typhoon Analysis and Prediction System) – 2012 Modernization project of VHMS 4.…
Suggestion for Next Steps 1.FMI did a good review and assess about current status of VHMS nowcasting system 2.FMI is going to do some training courses of radar using and interpreting in What should be done next? More training with real events of Vietnam after modernization project (when radars, AWS, automatic raingauge and NWP products… are available) Improve nowcasting system in Vietnam from National to Regional and even Provincial levels by setting up a easy-to-use system. Radar data sharing between neighbour countries.