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冰川冻土  2014 

黑龙江省电线积冰的气候特征及电网冰区划分

DOI: 10.7522/j.issn.1000-0240.2014.0066, PP. 555-562

Keywords: 电线积冰,气候特征,冰区划分

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Abstract:

以1981-2012年黑龙江省32个电线积冰观测站资料和80个气象站资料为基础,分析了黑龙江省积冰的时空分布特征;通过建立出雨凇、雾凇标准冰厚与气象因子的回归方程,对黑龙江电网冰区进行了初步划分.结果表明雨凇的密度要远大于雾凇,多数站最严重积冰现象是由雨凇导致的,雨凇对积冰灾害的形成有着至关重要的影响.雾凇日数远远大于雨凇日数,1981-2012年二者均呈显著下降的趋势;雨凇在秋季(11月份)最多,春季次之,而雾凇日数在冬季(1月份)最多,秋季次之.雨凇日数在漠河北部、黑河大部、孙吴大部、五常大部和虎林南部较多,雾凇日数在齐齐哈尔中部、绥化中部以及三江平原东部地区最多.冰区分布图结果显示,富裕属于中冰区,齐齐哈尔属于重冰区,其他地区均属于轻冰区.

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