Conservation Remeshing for Adaptive Mesh Modelling of the Atmosphere

该项目将为建立具有自适应网格的天气和气候预报的下一代大气模型提供至关重要的一步。自适应网格意味着，只有在真正需要的地方才能使用更高的分辨率，例如热带气旋、温带天气锋面和化学物质的混合，但不会大幅增加计算机资源。这将导致地区气候预测的改善和天气预报的延长。创建精确的自适应网格模型的一个重要环节是在不丢失或获得质量守恒映射的情况下将解从先前的网格转换到新的自适应网格。在这个项目中，我们将实施一些不同的保守映射方法，并在简化的全球大气自适应网格模型上测试它们。其中一项测试将是跟踪大气中的化学物质，并在物种变化最快的地方提供更高的分辨率。

This project will provide a vital step in creating next generation models of the atmosphere for weather and climate forecasting with adaptive meshes. Adaptive meshes mean that higher resolution can be used only where it is really needed, such as for tropical cyclones, extratropical weather fronts and mixing of chemical species, but without huge increases in computer resources. This will lead to improved regional climate predictions and extended weather forecasts. A vital link in creating accurate adaptive mesh models is transferring the solution from a previous mesh to a newly adapted mesh without losing or gaining mass - conservative mapping. During this project we will implement a number of different methods for conservative mapping and test them on simplified adaptive mesh models of the global atmosphere. One of the tests will be tracking chemical species around the atmosphere and providing higher resolution where the species change most rapidly.