Automated Meteorological Data Acquisition System: Difference between revisions

Revision as of 23:45, 18 November 2009

Revision as of 06:27, 15 December 2009

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[[File:Expo AMeDAS-2005-7-22.jpg|thumb|AMeDAS.]]

'''AMeDAS''' ('''''A''utomated ''Me''teorological ''D''ata ''A''cquisition ''S''ystem'''), commonly known in [[Japanese language|Japanese]] as "アメダス" (''amedasu''), is a high-resolution [[surface observation]] network developed by [[Japan Meteorological Agency]] (JMA) used for gathering regional weather data and verifying forecast performance. Begun operation on [[November 1]], [[1974]], the system consists of about 1,300 stations with automatic observation equipment. These stations, of which more than 1,100 are unmanned, are located at an average interval of 17 km throughout [[Japan]].

Observations at manned stations cover [[weather]], [[wind]] [[wind direction|direction]] and [[wind speed|speed]], types and amounts of [[Precipitation (meteorology)|precipitation]], types and base heights of [[cloud]]s, [[visibility]], air [[temperature]], [[humidity]], [[sunshine duration]], and [[atmospheric pressure]]. All of these (except weather, visibility and cloud-related meteorological elements) are observed automatically.