Hi,
To prepare ASTER high-resolution topographic data in NetCDF format for reading with the Weather Research and Forecasting (WRF) model, you'll need to follow these steps:
Install the required software: Ensure that you have WRF and its pre-processing system (WPS) installed on your system.
Convert the ASTER data to WPS-compatible format: WPS requires georeferenced elevation data in a specific format. Use the geogrid utility provided with WPS to convert the ASTER NetCDF files to the required format. Follow these steps:
a. Create a domain configuration file (e.g., geo_em.d01.nc) using the geogrid.exe utility. This file defines the domain and projection information for your simulation.
b. Edit the namelist.wps file to specify the correct paths to your ASTER NetCDF files and the domain configuration file.
c. Run geogrid.exe with the edited namelist.wps file to convert the ASTER data to the WPS format. This step will generate static geospatial data files required by WRF.
Prepare additional input data: Apart from elevation data, WRF requires other input data, such as meteorological initial and boundary conditions. Ensure you have these data ready in the appropriate format.
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Configure WRF: Set up the WRF model by creating a run directory and configuring the necessary files, including namelist.input, which controls the model's behavior.
Run WRF: Execute the WRF model using the prepared input data and configuration files. Monitor the simulation progress and check for any errors or warnings.
I hope the information helps you.