Help: Supported chem_opt in WRF-SFIRE coupled with chemistry (W4.4-S0.1)

[ChloeYangfan]

Version Information

• WRF-SFIRE coupled with chemistry: W4.4-S0.1

Detailed Description

I have been using WRF-SFIRE coupled with chemistry. However, I noticed that the currently supported chemical options, MOZART-GOCART and RADM2-MADE/SORGAM, either oversimplify or omit some processes critical to my research. Thus, I want to inquire whether the developer team has expanded the chemical options in WRF-SFIRE-Chem to include additional chem_opt in WRF-Chem, such as RACM-ESRL-MADE/SORGAM/VBS (3 modes) or CBMZ-MOSAIC (4 bins). Or are there any plans for such expansion in chem_opt?

Thank you for your time!

[adamk0]

Yangfan, Thank you for your inquiry regarding chemical options in WRF-SFIRE. At this time, we have not expanded the chemical options available in the model. That said, some other chemical schemes may be supported, provided the user generates the appropriate namelist.fire_emissions file. However, the specific schemes you are referring to would require a significant code overhaul to handle aerosols effectively. This would involve incorporating emission factors specific to the aerosol bins used in the MOSAIC or SPRGAM aerosol schemes. If you are able to conceptually address the challenge of deriving these emission factors, we would be happy to advise you on how to implement the necessary changes in the code. Thanks, Adam Kochanski Associate Professor Department of Meteorology and Climate Science Wildfire Interdisciplinary Research Center San Jose State University From: Yangfan Liu ***@***.***> Date: Monday, November 18, 2024 at 1:04 PM To: openwfm/WRF-SFIRE ***@***.***> Cc: Subscribed ***@***.***> Subject: [openwfm/WRF-SFIRE] Help: Supported chem_opt in WRF-SFIRE coupled with chemistry (W4.4-S0.1) (Issue #96) Version Information * WRF-SFIRE coupled with chemistry: W4.4-S0.1 Detailed Description I have been using WRF-SFIRE coupled with chemistry. However, I noticed that the currently supported chemical options, MOZART-GOCART and RADM2-MADE/SORGAM, either oversimplify or omit some processes critical to my research. Thus, I want to inquire whether the developer team has expanded the chemical options in WRF-SFIRE-Chem to include additional chem_opt in WRF-Chem, such as RACM-ESRL-MADE/SORGAM/VBS (3 modes) or CBMZ-MOSAIC (4 bins). Or are there any plans for such expansion in chem_opt? Thank you for your time! — Reply to this email directly, view it on GitHub<https://www.google.com/url?q=https://github.com/openwfm/WRF-SFIRE/issues/96&source=gmail-imap&ust=1732568646000000&usg=AOvVaw37VaA-He-KS3dZS2jpx9ps>, or unsubscribe<https://www.google.com/url?q=https://github.com/notifications/unsubscribe-auth/AA6K3WNGUW6QH4M2GYZURID2BJI4JAVCNFSM6AAAAABSASE4LOVHI2DSMVQWIX3LMV43ASLTON2WKOZSGY3DSOJQHA2TQOA&source=gmail-imap&ust=1732568646000000&usg=AOvVaw2qrIaMEZdBCELACB6X-fiQ>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[ChloeYangfan]

Yangfan, Thank you for your inquiry regarding chemical options in WRF-SFIRE. At this time, we have not expanded the chemical options available in the model. That said, some other chemical schemes may be supported, provided the user generates the appropriate namelist.fire_emissions file. However, the specific schemes you are referring to would require a significant code overhaul to handle aerosols effectively. This would involve incorporating emission factors specific to the aerosol bins used in the MOSAIC or SPRGAM aerosol schemes. If you are able to conceptually address the challenge of deriving these emission factors, we would be happy to advise you on how to implement the necessary changes in the code. Thanks, Adam Kochanski Associate Professor Department of Meteorology and Climate Science Wildfire Interdisciplinary Research Center San Jose State University From: Yangfan Liu @.> Date: Monday, November 18, 2024 at 1:04 PM To: openwfm/WRF-SFIRE @.> Cc: Subscribed @.> Subject: [openwfm/WRF-SFIRE] Help: Supported chem_opt in WRF-SFIRE coupled with chemistry (W4.4-S0.1) (Issue #96) Version Information * WRF-SFIRE coupled with chemistry: W4.4-S0.1 Detailed Description I have been using WRF-SFIRE coupled with chemistry. However, I noticed that the currently supported chemical options, MOZART-GOCART and RADM2-MADE/SORGAM, either oversimplify or omit some processes critical to my research. Thus, I want to inquire whether the developer team has expanded the chemical options in WRF-SFIRE-Chem to include additional chem_opt in WRF-Chem, such as RACM-ESRL-MADE/SORGAM/VBS (3 modes) or CBMZ-MOSAIC (4 bins). Or are there any plans for such expansion in chem_opt? Thank you for your time! — Reply to this email directly, view it on GitHubhttps://www.google.com/url?q=https://github.com/openwfm/WRF-SFIRE/issues/96&source=gmail-imap&ust=1732568646000000&usg=AOvVaw37VaA-He-KS3dZS2jpx9ps, or unsubscribehttps://www.google.com/url?q=https://github.com/notifications/unsubscribe-auth/AA6K3WNGUW6QH4M2GYZURID2BJI4JAVCNFSM6AAAAABSASE4LOVHI2DSMVQWIX3LMV43ASLTON2WKOZSGY3DSOJQHA2TQOA&source=gmail-imap&ust=1732568646000000&usg=AOvVaw2qrIaMEZdBCELACB6X-fiQ. You are receiving this because you are subscribed to this thread.Message ID: @.>

Dear Prof. Kochanski,

I compared the file lists of WRF-SFIRE-Chem and the corresponding WRF-Chem v4.4, finding that the following codes were not included in WRF-SFIRE-Chem's /chem directory: module_aerosols_soa_vbs_het.F and module_data_soa_vbs_het.F. They both seem to be related to SOA_VBS. In the beginning of module_aerosols_soa_vbs_het.F, I saw"This module is a modified version of the "module_aerosols_sorgam.F". The sorgam subroutine ! has been replaced by a new SOA scheme based on the Volatiliry Basis Set (VBS) approach, recent smog chamber yields! and multi-generational VOC oxidation mechanism (aging) for SOA formation."! In the beginning of module_data_soa_vbs_het.F , I saw "This module is based on module_data_sorgam.F, it has been updated to use! for the new SOA scheme - SOA_VBS". May I ask are there any specific reasons why they are not included? Will these reasons pose extra challenges for me to couple WRF-SFIRE with chemical options using VBS?

Thank you for your time! Happy holidays!

Sincerely,
Yangfan