Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2011-10-01 to 2011-10-31 (NODC Accession 0079058)

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（Real-Time Ocean Forecast System，简称RTOFS）数据集包含由美国国家大气预报中心开展的每日业务化RTOFS模式运行所产出的输出场。每次模式运行都会生成一系列格点场，其中包含模式计算得到的海洋温度、盐度、海流、海面高度及其他可能的海洋要素结果。这些格点场采用标准格点二进制（GRIdded Binary，简称GRIB）文件格式进行编码。美国国家海洋数据中心（National Oceanographic Data Center，NODC）会将一系列文件整合为月度数据集包，以方便档案存储与公共访问。该数据集包含两类不同的输出场：1）以模式原生混合（等密面加z坐标）垂直坐标系发布的每日三维格点场（注：2007年6月6日之前的此类场已插值至z坐标层）；2）仅针对表层发布的逐小时格点场。每日一次的模式运行会生成24小时的后报结果，以及最长120小时的预报结果。