北太平洋冬季天气尺度涡旋的特征及高空定常气流的作用

来源 :第八次全国动力气象学术会议 | 被引量 : 0次 | 上传用户：hutianyi199052

【摘要】

：

利用NCEP/NCAR逐日再分析资料研究了北太平洋冬季2.5-6天天气尺度瞬变涡旋的特征以及月平均气流对涡旋的作用.结果表明,海平面气压(SLP)瞬变扰动经验正交函数(EOF)分解得到的前2个模态给出的是—移动性天气尺度涡旋,其平均周期约4天,空间水平尺度约20个纬度,平均移速约10ms-1.

【作者】

：

谭言科郭文华

【机构】

：

解放军理工大学气象海洋学院南京 211101

【出处】

：

第八次全国动力气象学术会议

【发表日期】

：

2013年2期

【关键词】

：

天气尺度扰动涡旋高空定常气流相互作用

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北太平洋冬季天气尺度涡旋的特征及高空定常气流的作用

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