污染指数的预报准确率达76%。
结果，保证了采矿安全，提高了预报准确率。
As a result, the degree of prediction accuracy is increased, and mining safety is provided.
风暴潮预报准确率首先决定于台风路径预报的准确率。
Forecasting accuracy of storm surge caused by typhoon depends on forecasting accuracy of typhoon track.
证明了变分同化是提高预报准确率的一种非常有效的手段。
It is suggested that the variational assimilation is an effective skill to improve the prediction accuracy.
经过289天的检验，模型的预报准确率为76.69%。
Through checkout in 289 days, veracity of model achieved 76.69%.
试报结果表明，这种方法对提高强降雨落区的短时预报准确率是可行的。
The result indicates that, this method is feasible for improving the short-time forecast rate of accuracy on the severe rainstorm area.
冷锋、气旋和台风影响下的降水预报准确率明显高于暖锋和副高影响下的降水。
When the rain is caused by cold front, cyclone or typhoon, the rainfall forecast skill is higher than warm front or subtropical high.
首次提出了空气质量环境背景值的确定等提高城市空气污染预报准确率的有效措施。
The effective measures that determined background value of urban air pollution and improved forecast accuracy was proposed.
提高对流天气临近预报准确率的关键问题之一是了解大气的垂直稳定度和垂直风切变。
To improve the accuracy of convection weather forecast, one of the key issues is to find out the atmospheric vertical stability and wind shear.
预报业务系统实用性强，逐日预报准确率达到了70%以上，在生产实践中发挥了积极的作用。
The forecast accuracy rate was more than 70%, which played a great role in agricultural activities.
影响天气的因素有很多，引起天气变化的气象条件就更多，保证天气预报准确率的难度是难以想象的。
There are considerable difficulties to ensure accurate forecasting because there are mass factors that influence the synoptic and even more meteorological conditions causing synoptic variation.
经1995—1996年汛期试用表明，该系统对短时大、暴雨的预报准确率较高，有较好的业务使用价值。
Operational trial of flood season shown that it has higher forecast accuracy for nowcasting heavy and storm rain and better operational value from 1995 to 1996.
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.
中央气象台的旬气温、旬降水趋势及旬降水过程预报准确率都比较高，对吉林省制作旬预报具有明显的指导作用。
The results show that the accuracy of these forecasts are higher, and these forecasts have obvious guidance effects on dekad forecasts making in Jinn province.
为提高降雹预报准确率，确保飞行安全，统计分析了1982- 1995年民航福州义序机场气象资料，归纳机场降雹的天气特征。
The weather information of civil aviation Fuzhou Yixu aerodrome in the year of 1982-1995 was statistically analyzed, and the characteristics of the falling hail were induced.
结果显示集合预报在总体预报效果上比各个集合成员的预报效果好，简单的集合平均就可以提高模式形势场和降水要素场的预报准确率。
The results show the results of ensemble forecast are better than that of each member's, the simple average of ensemble members' prediction results can improve forecast accuracy;
本文针对相空间相似预报方法应用过程中存在需要同时确定时滞和维数的困难，引入历史预报准确率最高原则，提出了一种相空间相似预报的新方法。
To solve the problem of determining time lag and dimension simultaneously, a new method of phase space analog prediction has been advanced with maximizing the historical forecast accuracy.
除了帮助我们决定是否带伞，基础概率效应也解释了为何当今准确率颇高的天气预报仍然饱受质疑。
As well as helping to make better umbrella-carrying decisions, the base-rate effect may also resolve the paradox of why even today's sophisticated weather forecasts are still regarded with suspicion.
在这10次下雨天气中，天气预报将会准确预报其中的8次，因为它的准确率为80%。
And of these 10, a forecast accuracy of 80 per cent means the forecasters will correctly predict rain on 8 trips.
所以，尽管预报的准确率高达80%，但在预报有雨的日子里，出门的一个小时内真碰上雨的可能性只有30%.
So in spite of the apparently high rate of accuracy, rain will only fall on 30 per cent of the trips for which they forecast rain.
研究负荷记录混沌的成因，对于提高短期负荷预报的准确率是必要的。
Seeking the causes of the chaos of load records is important to im prove the accuracy of short- term load forecasting.
结果表明，经过BDA方案优化的台风初始场更加接近实际台风的结构，有效地提高了台风路径和强度预报的准确率。
The results show that the optimal initial field produced by BDA scheme is closer to the observations and the forecast accuracy for both track and intensity is improved effectively.
近几十年来，尽管统计手段和方法不断改进，但统计预报的准确率并未得到明显提高。
Although the statistical means and methods were unceasingly improved in recent years, the accuracy of statistical prediction have not marked progress.
卫星气象系统提高了天气预报的准确率，大幅度减少了由于自然灾害造成的经济损失；
The meteorological satellite system has brought increased accuracy to weather forecasting, substantially reducing economic losses due to natural calamities;
为开展农作物产量气象预报业务服务工作，研制了甘肃在作物产量气象预报服务系统，可为用户提供准确率高、形式多样的农作物产量预报服务。
The service system of the crop yield forecasting by meteorological factors in Cansu province was programmed which could provide high accuracy and many forms of service for clients.
试验预报结果表明，预报的趋势准确率和精度较多无回归预报方法有较大的提高。
The experimental result shows that both the percentage of accuracy and the precision of the tendency of forecast are greatly improved as compared with the method of multiple regression.
该模型用于某流域年均含沙量预测的拟合率达90％以上，预留检验预报的准确率为75％。
The model is applied to the prediction of the mean annual amount of sediment in a river valley. The results show that the fitting precision and prediction precision are 90% and 75%, respectively.
通过实证分析表明，采用神经网络所建立的股票市场模型能反映一段时间内市场平稳运行规律，对次日的市场行情变化预报的准确率较高，对市场短期预报有一定的参考价值。
The result shows that the model of stock market can reveal the market stable running laws for a period and forecast the market change the next day. It's also helpful to forecast the short-term market.
通过实证分析表明，采用神经网络所建立的股票市场模型能反映一段时间内市场平稳运行规律，对次日的市场行情变化预报的准确率较高，对市场短期预报有一定的参考价值。
The result shows that the model of stock market can reveal the market stable running laws for a period and forecast the market change the next day. It's also helpful to forecast the short-term market.
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