GSI v3.7 User’s Guide Documentation

Contents:

• 1. Overview
  • GSI History and Background
  • GSI Becomes Community Code
  • About This GSI Release
• 2. Software Installation
  • Introduction
  • Obtaining and Setting Up the Source Code
  • Directory Structure, Source Code and Supplemental Libraries
  • CMake Build System
  • Software Requirements and Compiler Specific Notes
  • Getting Help and Reporting Problems
• 3. Running GSI
  • Input Data Required to Run GSI
  • GSI Run Script
  • GSI Analysis Result Files in Run Directory
  • Introduction to Frequently Used GSI Namelist Options
• 4. GSI Diagnostics and Tuning
  • Understanding Standard Output (stdout)
  • Single Observation Test
  • Control Data Usage
  • Domain Partition for Parallelization and Observation Distribution
  • Observation Innovation Statistics
  • Convergence Information
  • Conventional Observation Errors
  • Background Error Covariance
  • Analysis Increments
  • Running Time and Memory Usage
• 5. GSI Applications for Regional 3DVar, Hybrid 3DEnVar and Hybrid 4DEnVar
  • Assimilating Conventional Observations with Regional GSI
  • Assimilating Radiance Data with Regional GSI
  • Assimilating GPS Radio Occultation Data with Regional GSI
  • Introduction to GSI Hybrid 3DEnVar Analysis
  • Introduction to GSI Hybrid 4DEnVar Analysis
  • Summary
• 6. Introduction to more GSI Applications
  • Introduction to Global GSI analysis
  • Introduction to Chemical Analysis
• A. GSI Community Tools
  • BUFR Format and BUFR Tools
  • Read GSI Diagnostic Files
  • Read and Plot Convergence Information from fort.220
  • Plot Single Observation Test Result and Analysis Increment
  • Generate initial regional ensembles
• B. Contents of Namelist Section OBS_INPUT
• C. GSI Namelist: Name, Default Value, Explanation

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