Comparative study on WRF model simulations from the viewpoint of optimum ship routing
Comparative study on WRF model simulations from the viewpoint of optimum ship routing
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船舶最优航线视角下WRF模型模拟对比研究
DOI：
10.1016/j.oceaneng.2020.107379
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发表时间：
2020
影响因子：
5
通讯作者：
Prpi?-Or?i? Jasna
中科院分区：
文献类型：
--
作者：
Chen Chen;Sasa Kenji;Ohsawa Teruo;Prpi?-Or?i? Jasna
除了其他研究集中在WRF性能的降雨，温度和降水，本研究提供了实用的建议，船舶运营商选择网格点值（GPV）数据集和WRF建模方法，以帮助更好地决策天气路由估计强风具有更高的精度。两个不同的GPV数据集，NCEP-FNL和ERA-Interim，用于WRF建模。数值模拟采用了多种模拟方法，包括应用不同的物理方案和选择是否采用四维资料同化。然后，在船上的测量散装货船已被用来验证计算风的八个大风浪航行情况。这发生在一个广泛的空间范围内，包括海洋区域，如西北太平洋，澳大利亚南部，塔斯曼海，非洲东南部和美国东南部，以及一个广泛的时间范围为四年。64个WRF模拟的结果表明，ERA-Interim适用于较长的时间，而NCEP-FNL可以分析极端大风。此外，网格轻推还可以降低风强度，因为它的平滑效果。最后，这些不同的GPV数据集的选择和船舶气象路由的建模方法进行了讨论，特别是对于波涛汹涌的海上航行。
In addition to other studies focused on the WRF performance of rainfall, temperature, and precipitation, the present study provides practical suggestions for ship operators on choosing grid point value (GPV) datasets and WRF modeling approaches to help make better decisions on weather routing by estimating strong wind with a higher accuracy. Two different GPV datasets, the NCEP-FNL and ERA-Interim, are used for WRF modeling. Various modeling approaches, which include applying different physics options and choosing whether to adopt the four-dimensional-data-assimilation, are employed for numerical simulation. Then, on-board measurements of a bulk carrier has been used to validate the calculated wind of eight rough-sea navigational cases. This occurs over a wide spatial range, covering ocean regions such as the Northwest Pacific Ocean, South of Australia, Tasman Sea, Southeast of Africa, and Southeast of America, as well as a wide temporal range of four years. Results of 64 WRF simulations show that ERA-Interim is suitable for longer periods, while NCEP-FNL can analyze extremely high winds. Additionally, grid nudging can also reduce the wind strength due to its smoothing effect. Finally, selections of these different GPV datasets and modeling approaches for ship weather routing are discussed, particularly for rough-sea navigations.