Generation and validation of the Chilean Wave Atlas database
Generation and validation of the Chilean Wave Atlas database
复制标题
智利波浪图集数据库的生成和验证
DOI：
10.1016/j.ocemod.2017.06.004
复制
发表时间：
2017
期刊：
影响因子：
3.2
通讯作者：
P. Winckler
中科院分区：
文献类型：
--
作者：
J. Beyá;M. Álvarez;Ariel Gallardo;Héctor Hidalgo;P. Winckler
本文总结了用于编制智利波浪地图集的35年波浪后发数据库的校准和验证。后发预报是用Wavewatch III波浪模式生成的，包括：i)整个太平洋1°× 1°网格上的波浪统计参数时间序列；ii)智利海岸外纬度每隔2°点的光谱数据。为了评估在正常和极端条件下不同位置的统计参数的性能，进行了全面的校准过程。定义了一个多标准性能评分来选择最佳的Wavewatch III模型配置。在这一过程中，可用的浮标记录很少，而卫星数据的使用范围很广。为了减小模型的系统误差，对统计参数进行了校正。与现有数据库相比，Atlas在正常波浪条件下表现出更好的性能。然而，对于最高的波浪高度，准确性被证明是较低的，与其他数据库的行为一致。这种极值估计的缺陷对海岸结构的设计产生了重要影响，其改进仍有待解决。
This paper summarizes the calibration and validation of a 35-year wave hindcast database used to create the Chilean Wave Atlas. The hindcast was generated with the Wavewatch III wave model and consists of: i) time series of wave statistical parameters in a 1° × 1° grid throughout the Pacific Ocean; ii) spectral data at points latitudinally spaced every 2° off the Chilean coast. A comprehensive calibration process was undertaken in order to assess the performance of statistical parameters at different locations under normal and extreme conditions. A multi-criteria performance score was defined to select the optimal Wavewatch III model configuration. Few buoy records available and a broad set of satellite data were used in this process. A correction method was then applied to the statistical parameters in order to reduce systematic errors of the model. The Atlas showed better performance when compared to existing databases under normal wave conditions. However, the accuracy was shown to be lesser for the highest wave heights, consistently following the behaviour of other databases. This deficiency in the estimate of extreme values has important consequences in the design of coastal structures, and its improvement remains to be solved.
M4 机器在东北大西洋和北海波浪能发电的年代际变化
影响因子：
8.7
作者：
Santo H
通讯作者：
Santo H