Automated Meteorological Data Acquisition System: Difference between revisions

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{{No footnotes|date=April 2012}}

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

'''AMeDAS'''Automated ('''''A''utomatedMeteorological ''Me''teorologicalData ''D''ataAcquisition System''A''cquisition (''S''ystemAMeDAS'''), commonly known in Japanese as "アメダス" (''amedasu''), is 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 1 November 1974, and currently comprises 1,300 stations throughout Japan (of which over 1,100 are unstaffed), with an average separation of {{convert|17|km|mi|abbr=on}}.

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

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== External links ==

{{commons category}}

* [http://www.jma.go.jp/jma/en/Activities/observations.html Japan Meteorological Agency observations descriptions]

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{{DEFAULTSORT:Automated Meteorological Data Acquisition System}}

[[Category:1974 establishments in Japan]]

[[Category:1974 in computing]]

[[Category:Japanese inventions]]

[[Category:Geography of Japan]]

[[Category:Japan Meteorological Agency]]