what is 歐洲中期天氣預報中心?

歐洲中期天氣預報中心(ECMWF)
The European Centre for Medium-Range Weather Forecasts (ECMWF) is an international organisation based at Reading, England that was founded in 1975.

Objectives
The objectives of the ECMWF are:

Development of numerical methods for medium-range weather forecasting
Preparation of medium-range weather forecasts for distribution to the member states
Scientific and technical research directed to the improvement of these forecasts
Collection and storage of appropriate meteorological data.

Work and Projects
The ECMWF has been producing operational medium-range weather forecasts since 1979-08-01.

It has run two "re-analysis" projects, the first ECMWF re-analysis (ERA-15) project generated reanalyses from December 1978 to February 1994. The ERA-40 project generated reanalyses from 1957.

The history of ECMWF is recorded in the book: "Medium-Range Weather Prediction - the European Approach" by Austin Woods, published Springer 2005.

Members
The ECMWF members are of 18 European states: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Republic of Ireland, Italy, Luxembourg, The Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, Turkey, United Kingdom

The ECMWF has co-operation agreements with other states: Croatia, Czech Republic, Estonia, Iceland, Lithuania, Hungary, Morocco, Romania, Serbia, Slovenia.