互助站遷站前后氣溫序列均一性檢驗及訂正
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Homogeneity Test and Correction of Temperature Series Influenced by Station Movement at Huzhu
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    摘要:

    氣象臺站的遷移常導致氣候序列的非均一性。本文對互助站遷站前后氣溫序列作均一性檢驗及訂正。采用〖WTBX〗t〖WTBZ〗檢驗和SNHT法,對互助站遷站前后的氣溫序列進行均一性檢驗,結果表明站址遷移對互助站溫度序列均一性的影響非常顯著。對差值法、一元線性回歸、逐步多元線性回歸以及確立訂正方程式的參考站平行資料年限對互助站氣溫序列訂正效果進行分析,結果表明用參考站15年平行觀測資料建立的逐步多元線性回歸訂正效果較好。用逐步多元線性回歸法對互助站遷站前的氣溫序列進行訂正,經訂正后互助站氣候傾向率為031 ℃/10a,消除了序列的不均一現象。

    Abstract:

    Meteorological station movement often leads to inhomogeneity of climate series. In order to study the homogeneity test and homogenization methods of singlestation temperature series, improve the reliability of temperature data series at Huzhu meteorological station, the homogeneity test and correction are conducted before and after the Huzhu meteorological station movement based on the 〖WTBX〗t〖WTBZ〗test and SHNT methods. The results show that impact of the Huzhu meteorological station movement on the homogeneity of temperature data series is significant. The adjustment results based on different methods (i.e., linear regression, stepwise multiple linear regression, and parallel data of basic stations) are analyzed. The results show that the correction result of the stepwise multiple linear regression based on 15years parallel observation data in basic station is better. The correction is conducted on the temperature data series before moving on the basis of the stepwise multiple linear regression. The climate tendency rate is 031 ℃/10a after correction, and the inhomogeneity of temperature series can be eliminated.

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郭守生,閆蓉,李進虎,顏亮東,李海紅.互助站遷站前后氣溫序列均一性檢驗及訂正[J].氣象科技,2016,44(1):31~35

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  • 收稿日期:2014-10-27
  • 定稿日期:2015-09-01
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  • 在線發布日期: 2016-02-29
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