Contents

• • • 1 Preface
  
  
• 1 User's Guide
  • 2 Introduction
  • 3 Building and Running the Coupler
  • 4 Input Namelist Parameters
    • 4.1 Conventions
      • 4.1.1 Generic periodic event specification.
    • 4.2 List of Parameters
    • 4.3 Example Input Namelists
  • 5 Output Data
    • 5.1 Stdout Data
    • 5.2 Restart Files
    • 5.3 History Files
      • 5.3.1 Instantaneous and Time Averaged File
      • 5.3.2 History File Format
      • 5.3.3 History File Content
  
  
• 2 Source Code Reference
  • 6 Introduction
  • 7 Source Code Overview
    • 7.1 cpl6 programming conventions
    • 7.2 The cpl6 version of the CCSM coupler
    • 7.3 Cpl6 General Datatypes and Methods.
    • 7.4 Summary of CPL6 structure
  • 8 Major cpl6 Modules
    • 8.1 The domain module
    • 8.2 The bundle module
    • 8.3 The infobuf module
    • 8.4 The contract module
    • 8.5 The interface module
    • 8.6 The fields module
    • 8.7 The map module
  • 9 The cpl6 main
    • 9.1 Variable Naming Conventions
      • 9.1.1 State Variables
      • 9.1.2 Flux Fields
      • 9.1.3 Domain Maps
      • 9.1.4 Bundles and Contracts
    • 9.2 Scientific Assumptions in main
      • 9.2.1 Number of Components
      • 9.2.2 Number of Grids
      • 9.2.3 Time Integration and Coordination
      • 9.2.4 Data Pathways through the Coupler
    • 9.3 Main Program Detail
      • 9.3.1 Psuedocode for main
      • 9.3.2 A Data Pathway in Detail
  • 10 Modifications to the Coupled System
    • 10.1 Adding Fields to Existing Pathways
    • 10.2 Interfacing a Component with the Coupler
  
  
• 3 Scientific Reference
  • 11 Introduction
  • 12 What is a "Coupler"?
  • 13 Development History
  • 14 Scientific Requirements
  • 15 Data Exchanged with Component Models
    • 15.1 Units Convention
    • 15.2 Time Invariant Data
      • 15.2.1 Data sent to Coupler
      • 15.2.2 Data sent to Component Models
    • 15.3 Time Variant Data
      • 15.3.1 Atmosphere Model
      • 15.3.2 Ice Model
      • 15.3.3 Land Model
      • 15.3.4 Ocean Model
  • 16 Calculations Performed in the Coupler
    • 16.1 Mapping
    • 16.2 Atmosphere/Ocean Surface Fluxes
      • 16.2.1 General Expressions
      • 16.2.2 Specific Expressions
    • 16.3 Surface Albedo and Net Absorbed Solar Radiation
      • 16.3.1 Land Surface Albedos
      • 16.3.2 Ice Surface Albedo
      • 16.3.3 Ocean Surface Albedos
    • 16.4 Area normalizing
    • 16.5 Merging and Fractional Weights
  • 17 Physical Constants
  
  
• 4 Appendix
  • 18 Glossary
  
  
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