Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2009-02-01 to 2009-02-28 (NODC Accession 0053280)

The NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) dataset comprises output fields from the daily operational RTOFS model runs conducted at the National Centers for Atmospheric Prediction. Each model run produces a series of gridded fields containing results of model computations for ocean temperature, salinity, currents, sea-surface height, and possibly other properties. The fields are encoded in the standard GRIdded Binary (GRIB) file format. NODC compiles a series of files into monthly accessions to facilitate archival storage and public access. Two different sets of output fields are included: 1) daily 3-dimensional fields reported on the model's native hybrid (isopycnal plus z-level) vertical coordinates (note: prior to June 6, 2007, these fields are interpolated to z-levels); and 2) hourly fields reported for the surface level only. Each daily model run produces a 24-hr hindcast as well as forecasts out to 120 hours.美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）大西洋实时海洋预报系统（RTOFS）数据集，由国家大气预报中心（National Centers for Atmospheric Prediction）开展的每日业务化RTOFS模式运行所产出的输出场构成。每次模式运行都会生成一系列格点场，其中包含海洋温度、盐度、海流、海面高度及其他潜在海洋要素的模式计算结果。此类格点场采用标准二进制格点（GRIdded Binary, GRIB）文件格式进行编码。美国国家海洋数据中心（National Oceanographic Data Center, NODC）将一系列文件整合为月度数据集包，以优化档案存储与公共访问体验。本次数据集包含两类不同的输出场：1）基于模式原生混合垂直坐标系（等密面加z坐标层）的每日三维场（注：2007年6月6日之前的此类场已被插值至z坐标层）；2）仅针对表层的逐小时场。每日一次的模式运行会生成一段24小时的后报结果，以及长达120小时的预报结果。