Output fields from the NOAA WAVEWATCH III® wave model monthly hindcasts for 2013-12 (NCEI Accession 0117467)

The NOAA WAVEWATCH III® hindcast dataset comprises output fields from the monthly WAVEWATCH III® hindcast model runs conducted at the National Centers for Environmental Prediction. Each model run produces a collection of files containing gridded fields comprised of input and mean wave parameters such as the significant wave height, directions, frequencies etc. Once per month, a wave simulation is carried out using restart files from the previous month and forced by hindcast wind products for the entire month. The resulting output data are transferred to NODC on a monthly basis. NODC assembles the series of files into monthly accessions to facilitate archival retention and public access. The fields are encoded in the standard GRIdded Binary version 2 (GRIB2) file format. Wave spectral data summaries are included, as well as detailed spectra at selected locations, in tabular text format. Nine different sets of output fields, corresponding to nine different grids used in the numerical simulations, are included. These include a global grid, as well as regional and coastal grids covering much of the North Atlantic and North Pacific oceans.

美国国家海洋和大气管理局（NOAA）WAVEWATCH III®数值后报数据集，包含美国国家环境预报中心（NCEP）开展的月度WAVEWATCH III®后报模式运行产出的输出场。每次模式运行均生成一组文件，其中包含由输入参数与平均海浪参数构成的网格化场，参数涵盖有效波高、波向、波频等。每月开展一次海浪模拟，以上月的重启文件作为初始条件，并以整月的后报风场产品作为强迫驱动源。产出的最终数据将按月移交至美国国家海洋数据中心（NODC）。美国国家海洋数据中心会将这一系列文件整合为月度入库批次，以方便档案留存与公众获取。上述输出场采用标准二进制网格化数据格式第二版（GRIdded Binary version 2，GRIB2）进行编码存储。数据集同时包含以表格文本格式存储的海浪频谱数据摘要，以及选定站点的详细频谱数据。本次数据集共包含9套不同的输出场，分别对应数值模拟中使用的9套网格，涵盖一套全球网格，以及覆盖北大西洋、北太平洋大部分海域的区域网格与近岸网格。