ESRL Global Systems Division

Central Weather Bureau History

CWB Image

In late 1989 and early 1990 a series of technical discussions and exchanges of visits were held between the Global Systems Division (GSD) of the Earth System Research Laboratory (ESRL), National Oceanic and Atmospheric Administration (NOAA), and the Central Weather Bureau (CWB) of Taiwan. The Joint Forecast System Project (JFPS) between CWB and GSD became official after formal cooperative agreement was approved in June 1990. The initial phase (CWB called Phase II) of GSD/CWB project was completed in December of 1994. During this phase, CWB and GSD jointly developed a PC-based forecast workstation. CWB combined this forecast workstation with their central facility which includes data sources, communication, preprocessing, and product generation, and establish a system, called the Weather Information and Nowcasting System (WINS). The WINS becomes CWB's operational forecast system at the Forecast Center. This system also provided data and products to outside users including two universities, EPA, and hydrology bureau in Taiwan. CWB also developed its own applications, for example the GOES-9 satellite navigation. CWB Phase IV project is from 2001 to 2009.

From 2010, a brand new Phase V project expanded to include wider NOAA cooperation and the CAPS (Center for Analysis and Prediction of Storms) at the University of Oklahoma.   NOAA agencies are NESDIS (National Environmental Satellite, Data, and Information Service), NSSL (National Severe Storms Laboratories), MDL Meteorological Development Laboratory) and ESRL.  The main focus of  CWB Phase V program is on the hazardous weather monitoring and forecast with the following themes:

  • to understand, control and grasp hazardous weather (such as typhoon) by enhance severe weather monitoring and forecast
  • to improve marine forecast and observation facility
  • to develop of high spatial and temporal forecast and to improve NWP capability and use satellite observation
  • to expand meteorological service

CWB Objectives

The primary objectives of the NOAA/OU-CWB cooperation are:

  1. Development and improve satellite products for tropical monitoring and prediction (NESDIS)
  2. Real time analysis and forecasting with ARPS system (OU/CAPS)
  3. Improvement and verification of short range forecasting using STMAS (ESRL/GSD)
  4. High Resolution Quantitative Precipitation Estimation and Quantitative Precipitation Forecast improvement (NSSL)
  5. Enhancement of nowcasting decision assistance tools (MDL)
  6. Development of high resolution forecast product generation assistance tools (ESRL/GSD)
  7. GPS radio occultation satellite data assimilation using the NCEP/JCSDA Gridpoint Statistical Interpolation (GSI) analysis system