Cloud Height：
You can calculate the height of targetted cloud
after measuring the angles described below the figure.　　




★Measure angles at points Ａ、Ｂ twice with appropriate time interval.
★Conceptual Model:
Ａ、Ｂ: Observation points, Ｑ: The points below the target cloud Ｐ．

★→Action: Type numerics below
①Angle of AB from the NORTH.
②Distance between A and B.
③Elevation angleα（∠ＰＡＱ）
④Horizontal angleγ　at A（∠ＢＡＱ）
⑤Horizontal anggleδ at B（∠ＡＢＱ）
⑥Elevation angleα2 at A（∠Ｐ２ＡＱ２）
⑦Horizontal angleγ2 at A（∠ＢＡＱ２）
⑧Horizontal angleδ2 at B（∠ＡＢＱ２）
★Click mouse, and map will move.
  Distance from Tokyo will be displayed.




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