Difference between revisions of "CMAQ version 5.1 (November 2015 release) Technical Documentation"

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Refer to the CMAQv5.0 [[CMAQ_version_5.0_(February_2012_release)_Technical_Documentation | Technical Documentation ]] for information on the technical features of this version.<br>
 
Refer to the CMAQv5.0 [[CMAQ_version_5.0_(February_2012_release)_Technical_Documentation | Technical Documentation ]] for information on the technical features of this version.<br>
  
== Release Notes for CMAQv5.0.2 - May 2014 ==
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== Release Notes for CMAQv5.1 - September 2015 ==
  
CMAQ version 5.0.2 is an incremental update to CMAQ version 5.0.1 that includes several changes to the science algorithms in the base model and new diagnostic/scientific modules.  The instrumented versions of the model provide CMAQ users with diagnostic tools for help in interpreting model performance and results. Community versions of the model include new science algorithms contributed by development groups outside of EPA. This release also includes an update to the meteorology-chemistry (WRF-CMAQ) coupled version of the model. Build instructions, how to run a model test case, and details of the changes included in CMAQv5.0.2 are provided below.
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=== CMAQ DDM Code Patch - April 2015 ===
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== Release Testing ==
  
The aerosol sensitivity code was updated to ensure stability and robustness for fine scale model applications. Propagating sensitivity through some ISORROPIA cases were found to be unstable under certain conditions. These cases were replaced with solutions for a more simple ion system. Other minor changes were made to how small numbers are handled by the sensitivity code. Sensitivity to activity coefficients was also found to function improperly and was disabled. Finally, updates to sensitivity of minor ions in aqueous chemistry were also disable to further ensure stable model solutions.  
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The CMAQv5.1 release package was tested with the Portland Group 15.7, Intel 16.0, and GNU Fortran 4.8.1 compilers. In addition to different serial and parallel configurations, the release was tested under different science configurations. See the details of the [[CMAQv5.1 Release Test Results]], including run times for different compiler configurations.
 
 
The release includes the updates from the September 2014 patch.
 
  
 
== Base Documentation  ==
 
== Base Documentation  ==
*[[CMAQv5.0.2 Readme file|Building and running CMAQv5.0.2]]
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*[[CMAQv5.1 Readme file|Building and running CMAQv5.1]]
*[[CMAQv5.0.2_Two-way_model_release_notes|Building and running WRF-CMAQ Two Way Model]]
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*[[CMAQv5.1_Two-way_model_release_notes|Building and running WRF-CMAQ Two Way Model]]
  
 
== Changes and new features ==
 
== Changes and new features ==
===Instrumented Models===
 
*[[CMAQv5.0.2 Integrated Source Apportionment|Integrated Source Apportionment Method]]
 
*[[CMAQv5.0.2 Direct Decoupled Method|Direct Decoupled Method]]
 
*[[CMAQv5.0.2 Sulfur Tracking|Sulfur Tracking]]
 
===Community Contributions===
 
*[[CMAQv5.0.2-VBS|VBS]] contributed by Ramboll Environ Corp.
 
*[[CMAQv5.0.2-APT|APT]] contributed by Ramboll Environ Corp.
 
  
 
===Base Model Changes===  
 
===Base Model Changes===  
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*[[CMAQv5.0.2 ACONC bug fix|ACONC bug fix]]
 
*[[CMAQv5.0.2 ACONC bug fix|ACONC bug fix]]
 
*[[CMAQv5.0.2 PT3DDIAG bug fix|PT3D diagnostic file bug fix]]
 
*[[CMAQv5.0.2 PT3DDIAG bug fix|PT3D diagnostic file bug fix]]
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===Instrumented Models===
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None
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===Community Contributions===
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None

Revision as of 18:36, 24 November 2015

Refer to the CMAQv5.0 Technical Documentation for information on the technical features of this version.

Release Notes for CMAQv5.1 - September 2015

Add content

Release Testing

The CMAQv5.1 release package was tested with the Portland Group 15.7, Intel 16.0, and GNU Fortran 4.8.1 compilers. In addition to different serial and parallel configurations, the release was tested under different science configurations. See the details of the CMAQv5.1 Release Test Results, including run times for different compiler configurations.

Base Documentation

Changes and new features

Base Model Changes

Instrumented Models

None

Community Contributions

None