排序方式： 共有7条查询结果，搜索用时 0 毫秒
1
1.
Based on the prediction experiments on the salinity distribution of the southern Huanghai Sea in spring (April-June) from 1978 to 1980, two salinity-prediction methods suitable for the region are obtained. The methods are briefly introduced and the marked factors affecting salinity variation and the prediction error are analysed. Results from the prediction experiments indicat the absolute prediction error of ensemble mean as 0.43‰, the relative error as 25%, the deviation error as -0.16‰, and the stations with prediction error less than 0.5‰ accounting for 72% of the total . There is a little difference between prediction tendency and measured data. 相似文献
2.
我们于1978—1980年对黄海南部近海区春季(4—6月)的盐度分布预报试验研究,得出两种比较适用于本海区的盐度预报方法。文中简要介绍了这两种统计预报方法,并对影响本海区盐度变化的显著因子及预报误差进行了分析。预报试验的结果是:预报的总体平均绝对误差为0.44‰,预报相对误差为25％,预报总体偏差为-0.16‰,预报误差小于0.5‰的站数占总站数的72％,预报趋势和实测资料基本一致。 相似文献
3.
本文主要利用温盐的相对值及其季节变化规律作为确定浅海变性水团性质的主要依据,并以温盐点聚对照法为基础,应用逐步聚类分析法,划分黄海区1978—1980年三年逐月的表底层水团。文中对应用聚类分析法的优点及存在问题以及水团与渔场的关系进行了探讨。 相似文献
4.
5.
6.
7.
Having determined the properties of the modified water-masses in the light of the relative value and seasonal variation of temperature-salinity, we have, according to the TS-comparison method, used the stepwise cluster analysis method to determine the monthly water-masses at the surface and the bottom layers in the Huanghai Sea from 1978 to 1980. The advantages and disadvantages of the method and the relationship between the fishing grounds and the water-masses are discussed in this paper. 相似文献
1