A New Joint Weather Research and Prediction (WRF) Model

这项合作研究工作将有助于发展一种新的天气研究和预报模式，该模式将推动中尺度数值天气预报的最新发展，并为研究和业务提供一个通用的模式系统。除了向俄克拉何马大学风暴分析和预测中心提供支持外，其他合作者还包括：国家大气研究中心中尺度和微尺度气象学部门；美国国家海洋和大气管理局（NOAA）国家环境预测中心（NCEP）；以及NOAA预报系统实验室（FSL）。设计WRF模式是为了提供一个高分辨率的预报系统，该系统将在大范围尺度上准确预报重要天气，特别强调降水系统。它将包含模型求解器的高级数值，并且几个新的原型将作为候选架构进行评估。该模型的并行实现是在一个单一的源代码中设计的，该源代码在不同的计算机体系结构范围内是灵活和高效的。将为WRF开发一个新的变分数据同化系统，该系统将包括较小尺度的观测，如多普勒雷达和中网数据。在模型物理领域，更广泛的研究团体将积极参与开发和评估高分辨率应用的改进物理。在三年的时间框架内，将提供并支持一个完整的物理，研究质量的WRF建模系统，作为社区研究模型广泛使用。在此建议期之后，发展将继续进行，预计世界水资源基金模式将在大约五年内成为取代区域业务模式的候选模式。通过联合开发和使用水资源基金，该项目有可能大大加强研究和业务科学家之间的相互作用，特别是简化将研究进展转化为业务的过程。

This collaborative research effort will contribute to the development of a new Weather Research and Forecasting (WRF) Model that will advance the state of the art in mesoscale numerical weather prediction and provide a common modeling system for use in both research and operations. In addition to the support provided to the University of Oklahoma's Center for Analysis and Prediction of Storms under this award, the other collaborators include: the National Center for Atmospheric Research Mesoscale and Microscale Meteorology Division; the National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Prediction (NCEP); and the NOAA Forecast Systems Laboratory (FSL).The WRF Model is being designed to provide a high-resolution forecast system that will accurately predict significant weather over a broad range of scales, with particular emphasis on precipitation systems. It will contain advanced numerics for the model solver, and several new prototypes will be evaluated as candidate architectures. A parallel implementation for the model is being designed within a single source code that is flexible and efficient across a diverse spectrum of computer architectures. A new variational data assimilation system will be developed for WRF that will include observations at smaller scales, such as Doppler radar and mesonetwork data. In the area of model physics, the involvement of the broader research community will he actively solicited in developing and evaluating improved physics for high-resolution applications.Within the three year time frame a full physics, research quality WRF modeling system will be made available and supported for broad use as a community research model. Development will continue beyond this proposal period, with the expectation that the WRF Model will become a candidate for replacing the regional operational models in about five years. Through the joint development and use of WRF, this project has the potential to enhance significantly the interactions between research and operational scientists, and in particular, to streamline the transfer of research advances into operations.