Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2014-09-01 to 2014-09-30 (NODC Accession 0122505)

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，收录了美国国家大气预测中心（National Centers for Atmospheric Prediction）每日业务化运行的RTOFS数值模式所产出的各类输出场数据。每次模式运行都会生成一系列网格化场数据，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式计算结果。此类场数据采用标准二进制格点（GRIdded Binary, GRIB）文件格式进行编码存储。美国国家海洋数据中心（National Oceanographic Data Center, NODC）会将一系列相关文件整合为月度数据集包，以优化归档存储与公共访问效率。本数据集包含两类不同的输出场数据：1. 基于模式原生混合垂直坐标系（等密面叠加z坐标系）生成的每日三维场数据（注：2007年6月6日之前的此类数据已被插值至z坐标系）；2. 仅针对海洋表层的逐小时场数据。每日一次的模式运行会产出24小时的后报结果，以及最长120小时的预报结果。