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首页> 美国政府科技报告 >Implementation of Model Skill Assessment Software for Water Level and Current in Tidal Regions.
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Implementation of Model Skill Assessment Software for Water Level and Current in Tidal Regions.

机译：潮汐地区水位和水流模型技术评估软件的实现。

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The National Ocean Service (NOS) is developing and implementing oceanographic nowcast and forecast modeling systems to support navigational and environmental applications in U.S. coastal waters. These prediction systems provide NOAA users with nowcasts (i.e. analysis) and forecast guidance of water levels, currents, water temperature, and salinity for the next 24 to 36 hours. The primary variables are water levels and currents. NOS requires these modeling systems, whether developed within or outside NOS be assessed for skill in adherence to NOS standards (Hess et al., 2003). Skill assessment is an objective measurement of how well the model nowcast or forecast guidance does when compared to observations. The approach here is to measure the performance of the model in: (1) simulating astronomical tidal variability, (2) simulating total (tide and non-tidal effects) variability, and (3) giving a more accurate forecast than the tide tables and/or persistence. The skill assessment scores are, admittedly, difficult to describe and compute. Therefore, NOS Coast Survey Development Laboratory has developed a software package that computes the scores automatically using data files containing observed, nowcast, and forecast variables. These data are processed and the skill assessment results are displayed in tables which can be incorporated into model evaluation reports.

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