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出 处:《沙漠与绿洲气象》2010年第5期40-43,共4页Desert and Oasis Meteorology
基 金:国家自然科学基金项目(40875010);中央级公益性科研院所基本科研业务费项目(IBM200701)共同资助
摘 要:选择2008年昌吉新老站址一年的气温、气压、降水量日值的366个对比观测数值(降水量214个数值),使用U和F检验对迁站前后日资料的均值和方差进行检验,发现最低、最高、平均气压和最低气温资料在0.05的显著水平下,由于迁站使前后资料的平均值出现比较显著的差异;方差除了降水量序列外,其他要素均在0.05的显著水平下存在显著性差异;将各要素的数据标准化后进行交叉对比,发现新旧站气压数据之间的变化频率和浮动都比较一致,标准化曲线基本重合,而气温数据尤其是最低气温,两站标准化曲线存在较大的差异;通过累积距平处理,发现新老站的变化趋势基本相同,只是新站序列图形的变化浮动较老站略大。This paper chose 366 comparative observation values of temperature, air-pressure and precipitation (214 of them) from the new and old station of changji in 2008, and tested variance and average value of daily data observed in the two station with F and U test, we found that: the significance level of minimum, maximum and mean air pressure and the minimum air temperature are all at α=0.05, to be significant differences in average value before and after relocation, and there are significant differences of all elements in variance except precipitation at α =0.05 level. After data series standardizing and contrasting, we detected that the air-pressure standardization curve is superposition mainly, but the temperature series is variety considerably, especially the minimum temperature. Seen from accumulative anomaly results, the variation trend is same mainly in the two stations, but variation float of data series in the new station is more than the old.
分 类 号:P468[天文地球—大气科学及气象学]
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