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International Cooperation

  Since the atmosphere has no national borders, international cooperation and coordination is essential for the development of worldwide meteorological activities. JMA devotes consistent efforts to international cooperation through multilateral and bilateral channels alike, and has established procedures to engage in cooperative activities with many NHMSs and international organizations.

Cooperation through WMO and Other Multilateral Activities

  The World Meteorological Organization (WMO) facilitates international cooperation in the meteorological field to coordinate, standardize and improve world meteorological activities. Japan is an active member of the organization, and successive Permanent Representatives of Japan with WMO (a role to which the Director-General is designated) have long served as members of the Executive Council by election of the Congress. JMA is a core member in the implementation of a number of scientific and technical WMO programs, with many experts contributing to Technical Commissions and associated working bodies of the organization. JMA also operates a number of WMO regional and global centers for the WWW (World Weather Watch) Programme and others.
  JMA is also actively involved in international programs organized by the Intergovernmental Oceanographic Commission (IOC) of the United Nations Educational, Scientific and Cultural Organization (UNESCO), the International Civil Aviation Organization (ICAO) and others.

Weather monitoring and forecasting
Operation and data dissemination of geostationary meteorological satellites (1978–) Asia, Pacific
WMO Global Data-processing and Forecast System (GDPFS)
Regional Specialized Meteorological Center (RSMC) (1968–)
East Asia
WMO GDPFS RSMC Tokyo - Typhoon Center (1988–)East Asia
ICAO Tropical Cyclone Advisory Center (TCAC) (1993–)Asia, Pacific
ICAO Volcanic Ash Advisory Center (VAAC) (1997–)Asia, Pacific
WMO GDPFS RSMC on the Provision of Transport Model Products for
Environmental Emergency Response (1997–)
Asia, Pacific
Telecommunication and observation systems
WMO Global Telecommunication System (GTS)
Regional Telecommunication Hub (RTH)
East Asia
WMO Regional Radiation Center (RRC) of RA II (1965–)Asia
WMO Regional Instrument Center (RIC) of RA II (1997–)Asia
GCOS Surface Network (GSN) monitoring Center (1999–)World
WMO Regional WIGOS Centre (RWC) of RA II (2021–)Asia
Global environment and ocean
WMO Global Atmosphere Watch (GAW)
World Data Centre for Greenhouse Gases (WDCGG)
WMO GAW Quality Assurance/Science Activity Centre (QA/SAC) (1995–)Asia, Southwest Pacific
WMO GAW World Calibration Centre (WCC) (2002–)Asia, Southwest Pacific
Tokyo Climate Center (2002–) as WMO Regional Climate Center (RCC) (2009-)Asia, Pacific
WMO/IOC Integrated Global Ocean Services System (IGOSS)
Specialized Oceanographic Center (SOC) (1984–)
Pacific Ocean
Marine observation data collection and archive under
MCSS (Marine Climatological Summaries Scheme) (1964–)
Western North Pacific
Northwest Pacific Tsunami Advisory Center (2005–)Northwest Pacific
International roles of JMA and their areas of responsibility

International Centers Operated by JMA

RSMC Tokyo - Typhoon Center

  JMA is responsible for the analysis and forecasting of tropical cyclones (TCs) in the western North Pacific and the South China Sea (0º - 60ºN, 100ºE - 180º) in its role as the Regional Specialized Meteorological Center (RSMC) Tokyo - Typhoon Center, one of the six RSMCs responsible for TC forecasting within the framework of the World Weather Watch (WWW) Programme run by the World Meteorological Organization (WMO). About 25.1 (30-year average from 1991-2020) TCs are generated every year in this area, and some causing serious damage to the affected regions. Against this background, the RSMC Tokyo - Typhoon Center issues vital information on TCs such as analysis and forecasts eight times a day in order to assist in the disaster prevention activities of National Meteorological and Hydrological Services (NMHSs) in the area, especially those of ESCAP/WMO Typhoon Committee members. The Center's activities also include monitoring of data exchanges among members, issuance of publications such as annual reports and technical reviews, and provision of on-the-job training seminars held annually at JMA Headquarters.
Area of responsibility of the Center
Area of responsibility of the Center
OJT at JMA's operation room
On-the-job training at JMA's operation room

Tokyo Climate Center (TCC)

  Recently, extreme climate events have caused a large number of serious disasters such as droughts and floods around the world, creating a significant social and economic impact. To mitigate the effects of such disasters, National Meteorological and Hydrological Services (NMHSs) play an important role in providing the general public and decision-makers with monitoring results and timely predictions of climate variability. JMA established the Tokyo Climate Center (TCC) to meet the requirements of NMHSs in this area and to contribute to the climate services they provide in the Asia-Pacific region.
  TCC's mission is to assist with the climate information services of NMHSs in the Asia-Pacific region with the aim of mitigating climate-related disasters and contributing to sustainable development. The Center's two major activities involve providing basic climate data and products to NMHSs through its website and assisting with capacity building at NMHSs in the same region. To promote climate services for the benefit of individuals, organizations and countries around the world, WMO plans to establish an international collaborative framework composed of Global Producing Centers, Regional Climate Centers and NMHSs to facilitate climate services. TCC is committed to contributing to such WMO initiatives, and in June 2009 was designated as one of the first WMO RCCs along with China's Beijing Climate Center.
Activities of the Tokyo Climate Center
Activities of the Tokyo Climate Center

Northwest Pacific Tsunami Advisory Center


circle: Locations for which tsunami arrival times and heights are forecasted.
yellow area: NWPTAC's Area of Service
  Since 2005, JMA has monitored earthquakes and tsunamis in and around the Northwest Pacific region in its Northwest Pacific Tsunami Advisory Center (NWPTAC) role. When an earthquake with a magnitude of 6.5 or greater occurs in and around the region, NWPTAC forecasts possible tsunamis in its Area of Service (AoS) and provides Northwest Pacific Tsunami Advisory (NWPTA) to potentially affected countries. NWPTA reports the origin time, hypocenter and magnitude of the earthquake as well as estimated tsunami arrival times and heights for individual coastal Forecast Points (FPs). Actual tsunami arrival times and heights are also included in NWPTA as available. This information supports recipient country decisions on the issuance of local domestic tsunami warnings and evacuation recommendations.
  NWPTAC's provision of interim tsunami advisories for the South China Sea region begun in 2006. It was terminated in November 2019 when South China Sea Tsunami Advisory Center (SCSTAC) of China entered full operation. NWPTAC now supports the tsunami disaster mitigation systems of Pacific countries in collaboration with the Pacific Tsunami Warning Center (PTWC) of the US, which covers the Pacific region, and SCSTAC, which covers the South China Sea region.

Technical Cooperation

  Technology transfer to developing countries in the field of meteorology is essential not only for the modernization of meteorological services in those countries but also for the promotion of international meteorological activities.
  JMA has been providing expert services and training programs to developing countries for decades. In particular, the series of Japan International Cooperation Agency (JICA) training courses in meteorology has received more than 300 meteorologists from National Meteorological Services in developing countries since 1973.
  Toward the implementation of Japanese government aid programs in the meteorological field, JMA provides a variety of technical support in cooperation with JICA and other national authorities.
JICA photo 1
JICA photo 2
JICA Training Course in Meteorology