User's Guide for the NMM Core of the

Weather Research and Forecast (WRF)

Modeling System Version 3

(View complete document in pdf)

1. Overview

• Introduction
• The WRF-NMM Modeling System Program Components

2. Software Installation

• Introduction
• Required Compilers and Scripting Languages
  • WRF System Software Requirements
  • WPS and WRF Post-Processor Software Requirement
• Required/Optional Libraries to Download
• UNIX Environment Settings
• Building the WRF System for NMM Code
  • Obtaining and Opening the WRFV2 Package
  • How to Configure the WRFV2
  • How to Compile the WRFV2 for the NMM Core
• Building the WRF Preprocessing System
  • How to Install WPS

3. WRF-NMM Preprocessing System

(Preparing Input Data)

• Introduction
• Function of Each WPS Program
• Running the WPS
• Creating Nested Domains with the WPS
• Using Multiple Meteorological Data Sources
• Parallelism in the WPS
• Checking WPS Output
• WPS Utility Programs
• Writing Meteorological Data to the Intermediate Format
• Creating and Editing Vtables
• Writing Static Data to the Geogrid Binary Format
• Description of Namelist Variables
• Description of GEOGRID.TBL Options
• Description of index Options
• Description of METGRID.TBL Options
• Available Interpolation Options in Geogrid and Metgrid
• Land Use and Soil Categories in the Static Data

4. WRF-NMM Initialization

• Introduction
• Initialization for Real Data Cases
• Running real_nmm.exe

5. WRF-NMM Model

• Introduction
• WRF-NMM Dynamics
  • Time stepping
  • Advection
  • Diffusion
  • Divergence damping
• Physics Options
  • Microphysics
  • Longwave Radiation
  • Shortwave Radiation
  • Surface Layer
  • Land Surface
  • Planetary Boundary Layer
  • Cumulus Parameterization
• Description of Namelist Variables
• How to Run WRF for NMM core
• Configuring a Run with Multiple Domains
• Real Data Test Case
• List of Fields in WRF-NMM Output
• Extended Reference List for WRF-NMM Core

6. WRF Software

• WRF Build Mechanism
• Registry
• I/O Applications Program Interface (I/O API)
• Timekeeping
• Software Documentation
• Portability and Performance

7. Post Processing Utilities

NCEP WRF Post Processor (WPP)

• WPP Introduction
• WPP Required Software
• Obtaining the WPP Code
• WPP Directory Structure
• Building the WPP Code
• WPP Functionalities
• Computational Aspects and Supported Platforms for WPP
• Setting up the WRF model to interface with the WPP
• WPP Control File Overview
  • Controlling which variables wrfpost outputs
  • Controlling which levels wrfpost outputs
• Running the WPP
• Overview of the scripts to run the WPP
• Visualization with WPP
  • GEMPAK
  • GrADS
• Fields Produced by wrfpost

RIP4

• RIP Introduction
• RIP Software Requirements
• RIP Environment Settings
• Obtaining the RIP Code
• RIP Directory Structure
• Building the RIP Code
• RIP Functionalities
• RIP Data Preparation (RIPDP)
  • RIPDP Namelist
  • Running RIPDP
• RIP User Input File (UIF)
• Running RIP
  • Calculating and Plotting Trajectories with RIP
  • Creating Vis5D Datasets with RIP