墨竹工卡气象观测站新旧站址观测资料对比分析

利用墨竹工卡气象观测站新旧站址的气温、降水、风、相对湿度等主要气象要素,采用差值、差值标准差、风向相符率、显著性检验等方法对其进行对比分析。结果表明,墨竹工卡新址气温、降水量、相对湿度与旧址总体相差很小,新址气温平均偏低旧址0.1℃;降水量年均偏多0.1 mm;相对湿度略偏小1%;风速新址大于旧址,年平均风速相差0.5 m/s,1~3月风最多的月份相差最大;新址和旧址气温、风、降水量、相对湿度一致性较好,其中气温一致性最好,观测数据稳定;风向相符率为81%左右。显著性检验结果表明,新址和旧址各要素平均值差异不显著。

Comparison and Evaluation of theO bservation Data between theN ew and Old Meteor ologicalO bservatory Sites in Maizhokung gar

The difference, the standard deviation of the difference, the corresponding rate of the wind direction and the significance level of the main meteorological data were compared and analyzed, such as the temperature, the precipitation, the wind and the relative humidity be-tween the old and new meteorological observatory sites in Maizhokunggar.Results showed that the overall difference in the temperature, the precipitation and the relative humidity between the new and the old sites in Maizhokunggar was very small and the temperature at the new site was lower than the old site by 0.1 ℃.The precipitation at the new site was 0.1 mm greater and the RH was smaller by 1%.Also the wind speed was greater than the old site and the difference in the yearly average wind speed was 0.5 m/s while the biggest difference was found from January to March.Good consistency was found between the new and the old sites in the temperature, wind, precipitation and relative humidi-ty.The consistency in the temperature was the best and the observatory data were stable.The corresponding rate of the wind was about 81%. Significance test results showed that no significant difference in the average values could be found between the new and old sites.