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地理科学  2015 

应用新方法HOMR-HOM均一化1961~2010年北疆最高和最低气温

, PP. 765-772

Keywords: 北疆,HOMR-HOM,最高气温,最低气温

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Abstract:

在实际的气象观察中,受站点迁移、城市化及仪器更换等影响,气象观测数据往往存在不均一性。这种不均一性会掩盖气候变化的真相、造成气候变化诊断结果的失真。因此,观测数据序列均一化具有重要的科学和实际意义。选择1961~2010年期间北疆地区37个气象站点(其中14个站点发生过大的迁移,迁移次数达17次之多),首先以乌鲁木齐站点为例子,说明新的HOMR-HOM方法数据断点检测和数据订正过程。然后,对北疆地区逐日最高气温和最低气温进行均一化处理。结果表明①新的均一化HOMR-HOM方法能较好的检测断点和订正北疆地区的逐日气温数据;②经过均一化处理,北疆地区最高气温观测数据比均一化后数据高,最低气温观测数据比均一化后数据低。

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