Wind (10m)

The wind speed and direction have been generated from the numerical prediction model, Australian Community Climate Earth-System Simulator (ACCESS). The model incorporates equations that represent the motion of the atmosphere and its associated physics. The model is run four times a day at 0UTC, 06UTC, 12UTC and 18UTC and produces hourly forecasts from 0 hours (base time) to 72 hours. The wind speed and direction points are derived from a 0.375 degree grid. As there is no manual input, the products generated will differ from the official forecasts, especially in the vicinity of weather fronts, tropical cyclones or when significant late-breaking observations have become available to forecasters. The wind speed unit is knots.

本次数据集的风速与风向数据源自数值预报模型——澳大利亚社区气候地球系统模拟器（Australian Community Climate Earth-System Simulator，简称ACCESS）。该模型集成了描述大气运动及相关物理过程的控制方程组。模型每日于协调世界时（UTC）0时、6时、12时及18时启动四次，可生成从起报时刻（0小时）至72小时的逐小时预报产品。风速与风向数据点取自分辨率为0.375度的网格。因该模型未引入人工干预输入，其生成的预报产品与官方预报存在偏差，尤其在天气锋面、热带气旋附近，或是预报员已获取最新突发观测资料的情形下。风速单位为节（knots）。