首页> 外文期刊>Geophysical Research Letters >The East Asian Subtropical Jet Stream and Atlantic Tropical Cyclones
【24h】

The East Asian Subtropical Jet Stream and Atlantic Tropical Cyclones

机译:东亚副热带急流和大西洋热带气旋

获取原文
获取原文并翻译 | 示例

摘要

Atlantic tropical cyclones (TCs) can cause significant societal and economic impacts, as 2019's Dorian serves to remind us of these storms' destructiveness. Decades of effort to understand and predict Atlantic TC activity have improved seasonal forecast skill, but large uncertainties still remain, in part due to an incomplete understanding of the drivers of TC variability. Here we identify an association between the East Asian Subtropical Jet Stream (EASJ) during July-October and the frequency of Atlantic TCs (wind speed >= 34 knot) and hurricanes (wind speed >= 64 knot) during August-November based on observations for 1980-2018. This strong association is tied to the impacts of EASJ on a stationary Rossby wave train emanating from East Asia and the tropical Pacific to the North Atlantic, leading to changes in vertical wind shear in the Atlantic Main Development Region (80-20 degrees W, 10-20 degrees N).
机译:大西洋热带气旋 (TC) 可能会造成重大的社会和经济影响,因为 2019 年的多利安提醒我们这些风暴的破坏性。几十年来,人们一直在努力了解和预测大西洋TC活动,提高了季节性预报技能,但仍然存在很大的不确定性,部分原因是对TC变化的驱动因素的了解不完全。在这里,我们根据 1980-2018 年的观测,确定了 7 月至 10 月期间东亚亚热带急流 (EASJ) 与 8 月至 11 月期间大西洋 TC(风速 >= 34 节)和飓风(风速 >= 64 节)的频率之间的关联。这种强烈的关联与EASJ对从东亚和热带太平洋向北大西洋发出的静止罗斯比波列的影响有关,导致大西洋主要发展区(西经80-20度,北纬10-20度)的垂直风切变变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号