A climatology of low‐level jets in the mid‐latitudes and polar regions of the Northern Hemisphere
A climatology of low‐level jets in the mid‐latitudes and polar regions of the Northern Hemisphere
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北半球中纬度和极地地区低空急流的气候学
DOI：
10.1002/asl.587
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发表时间：
2015
影响因子：
3
通讯作者：
T. Vihma
中科院分区：
文献类型：
--
作者：
Minttu Tuononen;V. Sinclair;T. Vihma
建立了北半球中纬度和极地地区低层急流发生和特征的冬季气候学。将LLJ检测算法应用于11年北极系统再分析数据。llj的最高发生率与地形的强梯度和海冰边缘有关。完全被海冰覆盖的海域也有利于llj的发生，然而，这些地区，包括北极中部，llj的数量少于海冰边缘。在很少被研究的鄂霍次克海地区，llj也经常发生。
A wintertime climatology of the occurrence and characteristics of low‐level jets (LLJs) in the Northern Hemisphere mid‐latitudes and polar regions was developed. A LLJ detection algorithm was applied to 11 years of Arctic system reanalysis data. The highest occurrence of LLJs was associated with strong gradients in topography and with the sea‐ice edge. Sea areas fully covered with sea ice also favoured the occurrence of LLJs, however, these areas, including the central Arctic, had fewer LLJs than along the sea‐ice edge. LLJs also occurred frequently in the seldom studied Sea of Okhotsk area.