摘要
利用2种高(低)潮序列统计了高(低)潮累积频率,一是从记录原点起算的高(低)潮序列Ⅰ,一是从月平均海平面起算的高(低)潮序列Ⅱ。可以发现:不同年份的高(低)潮序列Ⅰ的累积频率10%(90%)对应的潮位之间存在明显的差异,这主要是由于不同年份月平均海平面变化之间的差异引起的。同时也发现:不同年份高(低)潮序列Ⅱ的累积频率10%(90%)对应的潮位彼此比较一致,表明用不同年份的高(低)潮序列Ⅱ获得的结果在统计意义上是稳定的。为了得到安全稳定的设计高(低)水位,引人了月平均海平面特征极大(小)值。本文建议,设计高(低)水位取为月平均海平面特征极大(小)值与高(低)潮序列II累积频率10%(90%)对应的潮位之和。
Two kinds of high（low） tides series are used to calculate the cumulative frequencies of high （low） tides. The one is the high（low） tides series I reckoned from the origin of record, the other is the high（low） tides series II reckoned from the monthly mean-sea-levels. It is found that there exist considera- ble differences among those water levels corresponding to the cumulative frequency 10M（90~） of the dif- ferent years＇ high（low） tides series I, owing mainly to the differences among the different years＇ monthly mean-sea-levels. It is also found that those water levels corresponding to the cumulative frequency 10% （90%） of the different years~ high（low） tides series II are stable in a statistical sense. The characteristic maximum（minimum） of monthly mean-sea-levels is introduced in order to obtain a safe and stable high （low） design water level. In this paper, it is suggested that the high（low） design water level is taken to be the characteristic maximum（minimum） of monthly mean-sea-levels plus the water level corresponding to the cumulative frequency 10 % （90%） of the high（low） tides series II.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第9期1-11,共11页
Periodical of Ocean University of China
基金
国家自然科学基金项目(41176009)
海洋公益性行业科研专项经费(201005019)资助
关键词
累积频率
稳定性
平均海平面变化
征极值
计水位
. cumulative frequency
stability~ variation of monthly mean-sea-levels
characteristic ex- treme~ design water level
