河曲县气象局迁站观测资料对比分析与订正

Contrative analysis and correction between former and of obs data for Hequ station now addresses

选用河曲县气象局观测站现址和原址两地2014年气温、气压、湿度、风速、风向等资料，应用差值法、回归分析法、玫瑰图等方法进行了分析比较，结果显示两地主要气象要素资料差异明显，气温年均相近，但各月平均差别较大，现址日较差小；本站气压现址低于原址，差值较稳定；湿度现址小于原址；风速年、月平均现址大于原址，主导风向现址是SSE，原址是NW。同时从探测环境与气象学方面分析了两地气象要素差异成因。为解决差异影响，应用回归分析法给出了两地各要素每月的订正方程，作为资料订正使用的参考。

Air pressure, air temperature, humidity, direction of wind, wind velocity have been compared in observation station between former and now addresses in 2014, usingdifference method, regression analysis method and wind rose method.The study showed that the major meteorological elements in different addresses significantly differentiated, and annual temperatures were close, while the difference between monthly temperatures was great. The pressure of new station was lower, and difference of pressure was more stable. Surface humidity was lower in new station, with a higher annually and monthly average wind velocity. Dominant wind direction in new station was SSE,and NW in former address. Regression analysis has been applied to solve the influence of differences, and monthly correction equations of different meteorological elements were combined and calculated.