Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2009-09-01 to 2009-09-30 (NODC Accession 0060235)

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, RTOFS）数据集，包含由美国国家大气预测中心开展的每日业务化RTOFS模型运行产出的输出场。每次模型运行都会生成一系列网格化场，涵盖海洋温度、盐度、海流、海面高度及其他可能的海洋要素的模型计算结果。该类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存档包，以方便档案存储与公众获取。数据集包含两类不同的输出场：1）以模型原生混合（等密面加z层）垂直坐标系输出的每日三维场（注：2007年6月6日之前的此类场已被插值至z层坐标系）；2）仅针对表层输出的逐小时场。每日一次的模型运行会生成一份24小时的后报结果，同时还会输出最长达120小时的预报结果。