水文测验中流向归算问题的探讨 |
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引用本文: | 裴文斌,王华峦,曹满,于守勇. 水文测验中流向归算问题的探讨[J]. 水道港口, 2004, 25(1): 45-47 |
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作者姓名: | 裴文斌 王华峦 曹满 于守勇 |
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作者单位: | 1. 交通部天津水运工程科学研究所,天津300456 2. 秦皇岛港务局海测队,秦皇岛,066000 3. 天津航道局,天津300400 |
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摘 要: | 磁偏角和子午线收敛角是工程和科研中易忽略的方位角改正量。从方位角概念入手,介绍了各种方位角之间的关系,阐述了水文观测中流向方位角归算的必要性,给出了计算改正公式。同时,也给出了中国各海域代表性地区磁偏角改正值。
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关 键 词: | 磁偏角 子午线收敛角 流向 方位角 |
文章编号: | 1005-8443(2004)01-0045-03 |
修稿时间: | 2003-10-09 |
Discussion on Flow Directional Reduction in Hydrologic Observation |
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Abstract: | Magnetic declination and meridian conergence is often neglected in construction and research.From the concept of azimuth,the relation between various azimuth angles is descried;the necessity of reduction of flow directional azimuth in hydrologic observation is stated;then, the correction formula is given.And finally,the magnetic corrected (values) of characteristic areas of the sea waters in China is presented. |
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Keywords: | megnetic declination meridian conergence flow direction azimuth |
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