Output fields from the NOAA WAVEWATCH III® wave model monthly hindcasts for 2011-11 (NODC Accession 0089889)

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（National Oceanic and Atmospheric Administration, NOAA）WAVEWATCH III® 后报数据集，包含由美国国家环境预报中心（National Centers for Environmental Prediction, NCEP）开展的月度WAVEWATCH III® 后报模型运行所生成的输出场。每次模型运行均会生成一组文件，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（significant wave height）、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。最终生成的输出数据会按月传输至国家海洋数据中心（National Oceanographic Data Center, NODC）。该中心将一系列文件整合为月度归档数据集，以方便档案留存与公众获取。所有场数据均采用标准二进制网格化格式第二版（GRIdded Binary version 2, GRIB2）进行编码存储。数据集还包含以表格文本格式呈现的海浪频谱数据汇总，以及选定站点的详细频谱数据。本次数据集共包含九组输出场，分别对应数值模拟中所使用的九种网格。这些网格涵盖全球网格，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。