| 翻訳と辞書 |
| dynamic height ： ウィキペディア英語版 |
dynamic height
Dynamic height is a way of specifying the height of a point above a reference, as opposed to orthometric height or normal height.
Dynamic height is constant if one follows the same gravity potential as they move from place to place. Because of variations in gravity, surfaces having a constant difference in dynamic height may be closer or further apart in various places. Dynamic heights are usually chosen so that zero corresponds to the geoid.
When optical leveling is done, the path corresponds closely to following a value of dynamic height horizontally, but to orthometric height for vertical changes measured on the leveling rod. Thus small corrections must be applied to field measurements to obtain the orthometric height usually used in engineering. US National Geodetic Survey data sheets give both dynamic and orthometric values.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「dynamic height」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|