利用NCEP提供的高时空分辨率的GFS(Global Forecast System)数值预报产品和当地地面观测气温资料,经SPSS(Statistical Product and Service Solution)逐步回归分析,建立了嘉兴市24 h和48 h日平均气温、最高气温、最低气温初始预报方程,...利用NCEP提供的高时空分辨率的GFS(Global Forecast System)数值预报产品和当地地面观测气温资料,经SPSS(Statistical Product and Service Solution)逐步回归分析,建立了嘉兴市24 h和48 h日平均气温、最高气温、最低气温初始预报方程,采用卡尔曼滤波方法进行以上6项目的逐日滚动预报。对最近2年来的预报结果检验表明:平均气温的预报效果最佳,最低气温次之,最高气温的准确率相对最低;随着时效增长,误差增大;不同季节,参考价值高的项目各不相同,秋季的最高温度误差较小,而冬季则最低气温准确率最高。分析结果可以作为日常预报中一种有效的参考。展开更多
In market economy,SNA(A System of National Accounts),GFS(A System of Government Finance Statistics)and MFS(Money Finance Summery)are the important tools in management of macro-economy In this paper,a comparison of SNA...In market economy,SNA(A System of National Accounts),GFS(A System of Government Finance Statistics)and MFS(Money Finance Summery)are the important tools in management of macro-economy In this paper,a comparison of SNA,GFS and MFS were made on the accounting rule,the accounting structure and the accounting general framework,and a analysis were made on the accounting body,the accounting objective,the system of indicators,the standard classification and the full accounts.展开更多
文摘利用NCEP提供的高时空分辨率的GFS(Global Forecast System)数值预报产品和当地地面观测气温资料,经SPSS(Statistical Product and Service Solution)逐步回归分析,建立了嘉兴市24 h和48 h日平均气温、最高气温、最低气温初始预报方程,采用卡尔曼滤波方法进行以上6项目的逐日滚动预报。对最近2年来的预报结果检验表明:平均气温的预报效果最佳,最低气温次之,最高气温的准确率相对最低;随着时效增长,误差增大;不同季节,参考价值高的项目各不相同,秋季的最高温度误差较小,而冬季则最低气温准确率最高。分析结果可以作为日常预报中一种有效的参考。
文摘In market economy,SNA(A System of National Accounts),GFS(A System of Government Finance Statistics)and MFS(Money Finance Summery)are the important tools in management of macro-economy In this paper,a comparison of SNA,GFS and MFS were made on the accounting rule,the accounting structure and the accounting general framework,and a analysis were made on the accounting body,the accounting objective,the system of indicators,the standard classification and the full accounts.
