Center approach grey GM(1,1)model which changed the background value was applied. Through adjusting m value to enhance model precision,center approach grey GM(1,1)prediction model with higher accuracy for severe flood occurrence in Suzhou City was established.
以Z指数为旱涝指标,确定宿州市大涝年份,应用改变背景值的中心逼近式GM(1,1)模型,通过调整m值提高模型精度,建立了精度较高的宿州市大涝发生年份GM(1,1)预测模型,并对宿州市下一个大涝发生年进行了预测。
参考来源 - 宿州市大涝发生年份的中心逼近式GM(1·2,447,543篇论文数据,部分数据来源于NoteExpress
A severe flood in December 2008 brought renewed attention to Venice's vulnerable state and imminent fate as an underwater city.
2008年12月的一次严重洪灾再次让人们注意到威尼斯脆弱的状态和即将成为水下城市的命运。
Severe floods were recorded in 1570, 1584, 1719, 1891, and 1997, with the first records of local embankments for flood control dating from the thirteenth century.
1570年、1584年、1719年、1891年和1997年都有严重洪灾的记录,当地建设防洪堤坝的第一次记载可以追溯到13世纪。
In the summer of 1998, there was large-scale weather anomaly in China and the whole Yangtze River basin suffered a severe flood event, which is only next to 1954 in the 20th century.
1998年夏季我国出现了大范围的天气异常,在长江流域发生了2 0世纪第二大的全流域性洪水。
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