ACE wave spectra - model prediction vs WaMoSII data
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CAWCR Hindcast* and ECMWF ERA-5** model predictions of wave spectral properties (wave height and period) and corresponding observed data from ACE.Observations are mapped to model grids. Quality control is applied, i.e. cells with a number of points less than 5 and/or with high data variation (Standard Deviation/Mean greater than 0.2) are eliminated.Files are named as follows:WaMoS_vs_CAWCR_Hs.matWaMoS_vs_CAWCR_Tm.matWaMoS_vs_ERA5_Hs.matWaMoS_vs_ERA5_Tp.matIn each file, columns show Latitude (deg.), Longitude (deg.), Time (number of days from January 0, 0000), Model Parameters (Hs, Tp or Tm) and Observed Parameters (Hs, Tp or Tm), respectively. Hs denotes significant wave height in meters, Tp is peak wave period in seconds and Tm is mean wave period based on the first moment of wave spectrum in seconds.The MATLAB file, WaMoSvsModel_FigurePlot.m, can be used to visualise the results. The files dscatter.m and polyfix.m are functions used in the MATLAB script. A sample figure (SampleFigure.png) is also included for users’ reference.* Durrant, T., Greenslade, D., Hemer, M. and Trenham, C., 2014. A global wave hindcast focussed on the Central and South Pacific (Vol. 40, No. 9, pp. 1917-1941).** Copernicus Climate Change Service (C3S) (2017): ERA5: Fifth generation of ECMWF atmospheric reanalyses of the global climate . Copernicus Climate Change Service Climate Data Store (CDS), Dec. 12, 2018.
本数据集包含CAWCR 后报(Hindcast)* 与欧洲中期天气预报中心(ECMWF)ERA-5** 数值模式的海浪频谱特性(浪高与波周期)预测结果,以及来自ACE的同步观测数据。观测数据已匹配至模式网格,并开展质量控制流程:剔除有效观测点数少于5个,或数据离散程度过高(标准差与均值之比大于0.2)的网格单元。
数据集文件命名规则如下:
WaMoS_vs_CAWCR_Hs.mat、WaMoS_vs_CAWCR_Tm.mat、WaMoS_vs_ERA5_Hs.mat、WaMoS_vs_ERA5_Tp.mat
各文件的列依次为:纬度(单位:度)、经度(单位:度)、时间(以公元0年1月1日0时为基准的累计天数)、模式输出参数(Hs、Tp或Tm)以及观测参数(Hs、Tp或Tm)。
其中,Hs代表有效波高(单位:米),Tp代表谱峰周期(单位:秒),Tm代表基于海浪谱一阶矩计算得到的平均波周期(单位:秒)。
可通过MATLAB脚本WaMoSvsModel_FigurePlot.m对计算结果进行可视化展示,该脚本依赖dscatter.m与polyfix.m两个功能函数。数据集还附带示例图片SampleFigure.png,供用户参考。
* Durrant T、Greenslade D、Hemer M、Trenham C,2014年。聚焦中南太平洋的全球海浪后报研究[J]. 第40卷第9期,第1917-1941页。
** 哥白尼气候变化服务中心(Copernicus Climate Change Service, C3S),2017年。ERA5:ECMWF全球大气再分析第五代数据集[EB/OL]. 哥白尼气候变化服务中心气候数据存储库(CDS),2018年12月12日。
提供机构:
Australian Ocean Data Network



