Automated Meteorological Data Acquisition System: Difference between revisions

Revision as of 22:08, 17 April 2012

Revision as of 02:16, 15 January 2013

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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 a high-resolution [[surface observation]] network developed by the [[Japan Meteorological Agency]] (JMA) used for gathering regional weather data and verifying forecast performance. BegunThe operationsystem began operating on November 1, 1974, theand systemcurrently consists of aboutcomprises 1,300 stations with automatic observation equipment. These stations,throughout [[Japan]](of which more thanover 1,100 are unmanned), are located atwith an average intervalseparation 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.