Automated Meteorological Data Acquisition System: Difference between revisions

Revision as of 14:52, 22 March 2013

Revision as of 21:47, 1 May 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. The system began operating on November 1, 1974, and currently comprises 1,300 stations throughout [[Japan]](of which over 1,100 are unmanned), with an average separation of 17 km.

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.