能见度自动化观测和人工观测资料的对比评估

通过对比评估吴川气象观测站2014年1月1日-2015年12月31日每天不同天气现象下的08时、14时、20时的能见度(vis)自动观测资料和人工观测资料,进行对比差值、差值平均值、相关系数等方法,得到自动观测能见度和人工观测能见度的误差阀值,阀值可以分为vis<1.0km,1km≤vis<16km,16km≤vis<26km,26km≤vis<42km,42km≤vis<80km等5种情况,为日后能见度自动观测运行提供参照标准,并探讨减小能见度自动观测误差的方法,从而进一步提高能见度自动化观测数据质量。

Through the comparison and evaluation of （vis） automatic visibility observation data and artificial observation data ofvisibility at Wuchuan Meteorological Station from January 1, 2014 to December 31, 2015 under different daily weather phenomena at08：00, 14：00 and 20：00, By comparing the difference value, the average value of the difference value and the correlation coefficient,the error thresholds of automatic observation visibility and manual observation visibility are obtained. The threshold values can be divided into five cases, such as vis〈1.0km,1km ≤ vis〈16km,16km ≤ vis〈26km,26km ≤ vis〈42km,42km ≤ vis〈80km. It providesareference standard for automatic visibility observation in the future, and discusses the methods to reduce the error of automatic visibility observation, so as to further improve the quality of automatic visibility observation data.