用正月十五月影长度预测乌盟地区汛期降水的机理分析 |
| |
引用本文: | 韦志刚,张双印.用正月十五月影长度预测乌盟地区汛期降水的机理分析[J].高原气象,1997,16(4):425-432. |
| |
作者姓名: | 韦志刚 张双印 |
| |
作者单位: | 中国科学院兰州高原大气物理研究所 |
| |
基金项目: | 国家“九五”重中之重科技项目96-908-04-05-5和96-908-04-04课题资助 |
| |
摘 要: | 介绍了用正月十五月影长度作乌盟地区汛期降水预报的方法。分析指出,月影长度实际上反映正月十五上中天时刻的月赤纬的大小,月影短月赤 纬大,而月影长则月赤纬小。
|
关 键 词: | 月影长度 引潮力 汛期降水 降水预报 乌盟地区 |
ON MECHANISM TO FORECAST THE RAINFALL IN FLOOD SEASON UTILIZING THE LENGTH OF THE MOON'S SHADOW ON 15 LUNAR CALENDAR JANUARY IN ULANQAB LEAGUE DISTRICT |
| |
Abstract: | In this paper,at first,the method to forecast the rainfall in flood season utilizing the length (L ) of the moon's shadow on 15 lunar calendar January in Ulanqab League district is introduced. Then, the following mechanism is pointed out: L indicates the lunar declination at the upper central meridian passage on 15 lunar calendar January. When L>(<)5.1 cun, the maximum tide-generating force at the new and full moon in flood season is positive(negative),it causes the rainfall is much(little) from April to September in Ulanqab League. |
| |
Keywords: | Length of the moon's shadow Lunar declination Tide-generating force Rainfall in flood season |
本文献已被 CNKI 维普 等数据库收录! |