| 天文变量的计算 |
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| 引用本文： | 黄磊,黄祖珂,陈宗镛.天文变量的计算[J].海洋湖沼通报,2003(3):96-100. |
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| 作者姓名： | 黄磊 黄祖珂 陈宗镛 |
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| 作者单位： | 1. 青岛远洋船员学院航海系,青岛,266071
2. 中国海洋大学海洋环境学院,青岛,266003 |
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| 摘 要： | 根据IUGG第十届全体会议决议，1984年起采用新的天文常数1]，属于J2000．O系统。现在潮汐计算中仍普遍采用J1900．O系统的公式计算天文变量。本文依据2个系统的公式计算了天文变量。计算表明，依据新旧2个系统计算的天文变量对潮汐的计算造成的差异很小，J1900．O系统的计算公式仍可继续使用到2099年。尽管如此，本文认为目前在潮汐计算中应该根据IUGG第十届全体会议决议的要求采用J2000．O系统的公式计算天文变量。
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| 关 键 词： | 天文变量 潮汐计算 J2000．O系统 天文常数 |
| 文章编号： | 1003-6482(2003)03-0096-05 |
COMPUTATION OF ASTRONOMICAL VARIABLES |
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| HUANG Lei,HUANG Zuke,CHEN Zongyong.COMPUTATION OF ASTRONOMICAL VARIABLES[J].Transaction of Oceanology and Limnology,2003(3):96-100. |
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| Authors: | HUANG Lei HUANG Zuke CHEN Zongyong |
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| Abstract: | According to the resolution adopted at the tenth IUGG plenary meeting,new astronomical constants which belonged to Epoch J2000. 0 should be adopted from 1984. But at present astronomical variables are usually still computed by the formulae of Epoch J1900. 0 in the calculation of tides. In this paper, astronomical variables are computed by the formulae of Epoch J1900. 0 and J2000. 0. The calculations indicate that the differences between the values computed by the new and old formulae are very small and the formulae of Epoch J1900. 0 can be used until the year of 2099. Even so we consider that the formulae of Epoch J2000. 0 should be adopted to compute astronomical variables in the calculation of tides according to the resolution at the tenth IUGG plenary meeting. |
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| Keywords: | tide astronomical variables Epoch J2000 0 |
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