为提高沙尘暴的预报准确率，针对目前已出现的RBF - SVM沙尘暴预报模型中的参数优化进行研究。
To improve the accuracy of sand-dust storm forecasting, an RBF-SVM method with automatic parameter selection was presented in this paper.
气象台预报沙尘暴即将来临。
同时，依据诊断分析的结果，简要给出了宁夏沙尘暴天气的预报着眼点。
At the same time, we got the outline for forecasting the sandstorm in Ningxia based on the result of diagnostic analysis.
另外，预报说，在中国西北部的甘肃及内蒙古北部将出现沙尘暴。
In addition, it was forecasted that sand storm will appear in northern Inner Mongolia Autonomous Region and Gansu Province in the northwest.
沙尘暴是我国冬春季节常发生的一种灾害性天气现象，对其作深入研究有利于业务预报的进展。
The dust storm is a disaster weather phenomenon which often occurs in spring and winter in north of China.
结果表明：螺旋度作为强对流天气分析预报中的一个重要物理量，在沙尘暴的预报中同样具有很好的指示意义。
As an important physical parameter in analyzing and predicting strong convective weather, the helicity also has good indication in the forecasting of sandstorm.
结果表明：螺旋度作为强对流天气分析预报中的一个重要物理量，在沙尘暴的预报中同样具有很好的指示意义。
As an important physical parameter in analyzing and predicting strong convective weather, the helicity also has good indication in the forecasting of sandstorm.
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