• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Estuarine Coastal and Shelf Science >How to quantify long-term changes in coastal sea storminess?
【24h】

How to quantify long-term changes in coastal sea storminess?

机译：如何量化沿海海域暴风雨的长期变化？

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The paper discusses various aspects of local and regional storminess, as well as challenges in quantifying its tendencies in the eastern section of the Baltic Sea. The study is based on various long-term data sets, such as wind and sea level observation data from coastal stations and tide gauges of Estonia (1899 2013). It also discusses long-term-wave hindcasts (1966-2013), reconstructions of shoreline changes, as well as the limitations and possible shortcomings in each of the data sets. Mostly located on the westerly. exposed and windward coast of the semi-enclosed Baltic Sea, the case study area is sensitive to wind and storm climate changes. Different manifestations of storminess delivered somewhat specific results. When analyzed together, the first principal component of storminess was connected to the intensity of regional cyclonic activity along the polar front and had relatively high stages in 1920s-1940s, 1980s 1990s and probably also from 2010. The second component carried a local and more random imprint. Appearing independently of the high NAO or general "storminess" phases, the most notable event-driven extremes in the record were related to this component. Based on our data, we cannot confirm the existence of any general increasing long-term trends for storminess. Wherever the increase exists, it has occurred as a winter-time increase accompanied by the shift of the stormy season from autumn to winter. The spatially contrasting results for westerly and northerly exposed coasts reflect the corresponding variations in local wind, which are connected to the changes in storm track activity above northern Europe and a poleward shift of cyclones' trajectories. (C) 2014 Elsevier Ltd. All rights reserved.
机译：本文讨论了局部和区域性暴风雨的各个方面，以及量化其在波罗的海东部地区的趋势所面临的挑战。该研究基于各种长期数据集，例如来自沿海站和爱沙尼亚潮汐仪的风和海平面观测数据（1899年，2013年）。它还讨论了长期波后预报（1966-2013年），海岸线变化的重建以及每个数据集的局限性和可能的​​缺点。多位于西风。该案例研究区位于半封闭的波罗的海的裸露和迎风海岸，对风和暴风雨气候变化敏感。暴风雨的不同表现带来了一些特定的结果。一起分析时，暴风雨的第一个主要成分与沿极地带的区域气旋活动的强度有关，并且在1920年代至1940年代，1980年代的1990年代以及大概从2010年开始具有相对较高的阶段。烙印。与高NAO阶段或一般“暴风雨”阶段无关，记录中最显着的事件驱动极端事件与此组件有关。根据我们的数据，我们无法确认是否存在任何普遍增加的长期暴风雨趋势。无论增加多少，它都是冬季增加，伴随着暴风雨季节从秋季到冬季的转移。西风和北风暴露海岸的空间对比结果反映了当地风的相应变化，这与北欧上方风暴路径活动的变化以及气旋轨迹的极移有关。 （C）2014 Elsevier Ltd.保留所有权利。

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