Weather Research and Forecasting Model Explained (Part 2) - Nesting and System Components
In the part 1 we introduced WRF and discussed the meteorological basics of Advanced Research WRF. In this part we discuss the concept of nesting and explain different system parts of WRF. But first we'll define two basic terms. Grid: Raw atmospheric data layed out as a discrete grid for an area of the map. Figure 1 [1] Grid examples Domian: A model created by processing grid information and making it ready for processing by WRF Model. Nesting: Nesting is a way of getting high resolution data from low resolution data.That's achieved by introducing more grid or grids to the initial state. Those finer grain grids force the need for more high resolution data. That data is obtained by interpolating data from coarse grain grids or could be user input. Figure 2 [1] Nested grid WRF System Components: Figure3 [1] WRF system components As it appears in figure 1, the system has 3 main components: Preprocessor (WPS), the WRF Model and Post Processor. The WPS is responsible for pre...