原文传递
On the Water: Swell information - Part Ⅰ
| 题名： | On the Water: Swell information - Part Ⅰ |
| 正文语种： | eng |
| 作者： | JOEL MILTON |
| 摘要： | In the last few months, the National Weather Service has made a small but noticeable change in the information sent to mariners via their regularly issued marine weather forecasts for the coastal waters of the U.S. East Coast. The change involves swell information, both the direction and period. It has been routinely added to the normal wave forecasts, both in the online text forecasts and radio broadcasts. This is a significant positive step. For those unfamiliar with swells, they are waves, typically somewhat smooth and rounded in appearance, that are generated by non-local winds. They can travel moderate to very long distances. Swells are distinct from local wind waves (the "normal" waves in your forecast), which are formed and driven by local winds and can change direction rapidly as the local wind direction and velocity changes. Swells, too, will change direction and size, but generally much ' more slowly than local wind waves do. In combi- nation, these confused seas significantly increase the risk factor. |
| 出版年： | 2023 |
| 期刊名称： | Work Boat |
| 卷： | 80 |
| 期： | 3 |
| 页码： | 8-8 |
相关文献
- Estimation of Route Travel Time Distribution with Information Fusion from Automatic Number Plate Recognition Data
- Recovery Measure of Tamping on Different Track Geometry Irregularity Indexes
- On the Water Modern technology - Part Ⅲ
- Railway Trespass Prevention: Spatial Analysis of Incidents to Connect to Countermeasures
- General information
- Sea-Level Rise Vulnerability Assessment of Bicycle and Trail Networks
检索历史
应用推荐
