[Essential for scientific research] Full-process high-precision meteorological model WRF simulation technology

As the construction of ecological civilization and the "carbon neutrality" strategy continue to advance, my country's and global climate change and response are the focus of attention of the government, scientific community and business community. Climate is the main driving factor in many fields (ecology, water resources, wind resources, carbon neutrality, etc.). A reasonable understanding of climate change is conducive to explaining the mechanisms and processes of ecological environment changes, and understanding current and future climate change is crucial. It is a prerequisite for ecological, environmental and energy assessment, and carbon policy planning. Climate simulation is the most important means of obtaining high-precision climate information. Modern ecology, hydrology, new energy and carbon neutrality fields require sub-kilometer and higher resolution meteorology. For simulation, the WRF model is the most widely used meteorological model at home and abroad. There are more and more applications using this model for high-precision simulations of even hundreds of meters. On the other hand, the model continues to expand the model module, and now it can realize aerosol and chemical processes (WRF-CHEM), data assimilation (WRF-DA), hydrological processes (WRF-HYDRO), urbanization (URBAN) and other processes The precise simulation has more and more application scope and practical business and scientific research applications. However, this model runs on the Linux platform, and the pre-processing, operation and analysis processes are complex and difficult.

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Target:

1. Master the various components of the WRF model;

2. Complete the transplantation of this model independently;

3. Autonomous completion mode operation;

4. Complete mode post-processing independently;

5. Through multi-field case analysis and practice, become familiar with applications in multiple fields.

Details:

Review of theoretical knowledge on regional climate models

1. What can WRF mode do? (simulation, prediction, forecast)

2. What does the WRF model framework look like, and how to achieve high-precision simulation of meteorology?

 

3. What kind of computing platform does WRF use? Computing system?

 

Linux operating system WRF mode system practical operation

1. How to install the platform required for WRF mode? (vmware,linux)

2. How to build the system required for WRF compilation from scratch? (Centos7)

 

3. Install the compiler required to convert WRF from code to program. (INTEL)

 

4. What file format is used for the output files of each module in WRF mode? (NetCDF)

 

Mode debugging and operation

1. How to prepare basic data for WRF? (WRF pre-processing-WPS)

 

1.1How does WPS define the simulation area? How to prepare terrain, land use and other data (geogrid.exe)

 

1.2How does WPS prepare meteorological data? (ungrib.exe)

 

1.3How does WPS interpolate horizontally? (metgrid.exe)

 

2. How does the WRF model simulate weather? (WRF)

 

2.1 How does WRF complete vertical interpolation? (real.exe)

 

2.2 Numerical integration in WRF mode. (wrf.exe)

 

Model operation and case practice

• 1. Case operation 1.
• 

2. Case operation 2, (single domain) 

 

3. Case operation 3 (restart)

 

4. Case operation 4 (SST update)

 

5. Case Operation 5 (Nudging)

6. Case Operation 6 (Idealized Cases)

 

7. Case Operation 7 (Typhoon)

 

Practical applications and case studies

1. How to analyze WRF simulation results? (NCL)

 

1. 1. Example 1 (line)
   2. 

2. 1. Example(contour)
   2. 

 

1. 1. Example (overlay)
   2. 

2. 1. Example(panel)
   2. 

    2. How to display WRF results? (Vapor)

 

2.1 Example 1 (contour)