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kamo karapetian
12/2/25
WRF-Chem : WARNING: Large total sw optical depth of
Hello everyone, I am currently experiencing some difficulties with WRF-Chem(chem_opt=202). I am using
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WRF-Chem : WARNING: Large total sw optical depth of
Hello everyone, I am currently experiencing some difficulties with WRF-Chem(chem_opt=202). I am using
12/2/25
Will H
11/17/25
WRF-Chem Emissions Guide, WRF-CHEM Users Guide
Found these documents hidden in an old forum. I hope it helps people out
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WRF-Chem Emissions Guide, WRF-CHEM Users Guide
Found these documents hidden in an old forum. I hope it helps people out
11/17/25
Nishant
,
Gabriele Pfister
2
10/28/25
PM10 and PM2.5 are zero
Hello Nishant PM2.5 and PM10 are diagnostic species in WRF-Chem so you have to run the model to have
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PM10 and PM2.5 are zero
Hello Nishant PM2.5 and PM10 are diagnostic species in WRF-Chem so you have to run the model to have
10/28/25
Mauro Morichetti
10/21/25
European WRF-Chem Workshop 2026
Hi all, !!!! First call of the European WRF-Chem Workshop 2026 !!!! The workshop will be held in
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European WRF-Chem Workshop 2026
Hi all, !!!! First call of the European WRF-Chem Workshop 2026 !!!! The workshop will be held in
10/21/25
Ediclê de Souza Fernandes Duarte
7/10/25
FATAL CALLED FROM FILE: <stdin> LINE: 76 mieaer /refr/ outside range 1e-3 - 10 refr= 0.15789E+02
Hello people, I'm having this error when I run WRFChem: "tail rsl.error.0000 Timing for main
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FATAL CALLED FROM FILE: <stdin> LINE: 76 mieaer /refr/ outside range 1e-3 - 10 refr= 0.15789E+02
Hello people, I'm having this error when I run WRFChem: "tail rsl.error.0000 Timing for main
7/10/25
NIDHI PATIL 23552007
,
Deepak
2
5/20/25
Query Regarding WRF-Chem run
Hi Nidhi, Remove the another two options from the dust_opt only add dust_opt=1, On Thursday, May 1,
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Query Regarding WRF-Chem run
Hi Nidhi, Remove the another two options from the dust_opt only add dust_opt=1, On Thursday, May 1,
5/20/25
sam krbs
,
Gabriele Pfister
2
4/28/25
WRF_Chem , providing emission files
HI Sam For mozbc the code will automatically look for the next file and increment the filename. So I
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WRF_Chem , providing emission files
HI Sam For mozbc the code will automatically look for the next file and increment the filename. So I
4/28/25
Setareh Rahimi
,
Mary Barth
2
2/22/25
Guidance on Issue in WRF-Chem (version 4.6, chem_opt=202)
Hi Setareh, I am on travel and could only take a quick look at your question. I noticed that you are
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Guidance on Issue in WRF-Chem (version 4.6, chem_opt=202)
Hi Setareh, I am on travel and could only take a quick look at your question. I noticed that you are
2/22/25
Setareh Rahimi
,
Gabriele Pfister
2
1/27/25
Assistance Needed with Creating Emission Files for WRF-Chem
Hi Setareh, I am not sure I can give you advice other than that you have to reformat your local
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Assistance Needed with Creating Emission Files for WRF-Chem
Hi Setareh, I am not sure I can give you advice other than that you have to reformat your local
1/27/25
Lin Lu
, …
Alvin Christopher Galang Varquez
9
10/31/24
WRF-Chem restart query
Dear everyone, When we do a restart run with wrf-chem, does the wrfrst* file contain the information
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WRF-Chem restart query
Dear everyone, When we do a restart run with wrf-chem, does the wrfrst* file contain the information
10/31/24
Yogesh Sathe
10/23/24
Very high secondary organic aerosol concentrations with FINN fire emissions and MOZART+MOSAIC chemistry
Dear All, I am trying to simulate PM2.5 over Northern India using WRF-Chem 3.9.1. I have configured
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Very high secondary organic aerosol concentrations with FINN fire emissions and MOZART+MOSAIC chemistry
Dear All, I am trying to simulate PM2.5 over Northern India using WRF-Chem 3.9.1. I have configured
10/23/24
Alvin Christopher Galang Varquez
10/15/24
Suspect an issue in generated wrf_season_we_usgs_d01.nc
Hi everyone, I am now trying to run the attached namelist, which aims to use `chem_opt=202` setting.
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Suspect an issue in generated wrf_season_we_usgs_d01.nc
Hi everyone, I am now trying to run the attached namelist, which aims to use `chem_opt=202` setting.
10/15/24
Yinbao Jin
8/22/24
WRF-Chem run chem_opt=202, error:NetCDF error: NetCDF: Variable not found
I am using the WRF-Chem 3.9.1 model with chem_opt set to 202, but I encounter an error when running
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WRF-Chem run chem_opt=202, error:NetCDF error: NetCDF: Variable not found
I am using the WRF-Chem 3.9.1 model with chem_opt set to 202, but I encounter an error when running
8/22/24
giwrgos papadopoulos
7/12/24
GHGs and aerosols effect on radiation in WRF-Chem
Hello everyone, I am a new PhD Student and new in the use of WRF-Chem. For my thesis, I am trying to
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GHGs and aerosols effect on radiation in WRF-Chem
Hello everyone, I am a new PhD Student and new in the use of WRF-Chem. For my thesis, I am trying to
7/12/24
Parker Yang
,
Gabriele Pfister
4
7/3/24
WRF Chem Anthropogenic Emission Error
Hi, I am not at all familiar with this tool but looking at the wrfchemi file, I see that the
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WRF Chem Anthropogenic Emission Error
Hi, I am not at all familiar with this tool but looking at the wrfchemi file, I see that the
7/3/24
sanjukta ghosh
,
Neeldip Barman
3
6/15/24
QUERY
Thanks, Neeldip for the clarification. I will go through the reference. On Sat, Jun 15, 2024 at 1:16
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QUERY
Thanks, Neeldip for the clarification. I will go through the reference. On Sat, Jun 15, 2024 at 1:16
6/15/24
Dr. Sahir Azmi
5/30/24
ndown P_TOP error. Please help.
I am encountering this error when using ndown.exe, for coarser domain input file P_TOP was 5000 ....
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ndown P_TOP error. Please help.
I am encountering this error when using ndown.exe, for coarser domain input file P_TOP was 5000 ....
5/30/24
Varun Katoch
, …
Mary Barth
7
4/18/24
WRF Chem_opt 202 Version 4.4 Issue: Warning Messages and Stuck Simulation
Hi there, I'm sorry you couldn't find the archived emails related to this topic. However, the
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WRF Chem_opt 202 Version 4.4 Issue: Warning Messages and Stuck Simulation
Hi there, I'm sorry you couldn't find the archived emails related to this topic. However, the
4/18/24
Mary Barth
4/17/24
Re: How to use wrf-chem to simulate dimenthly sulfide(DMS)
HI Qiwei, It's best to send your questions to the google groups email list. I've added that
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Re: How to use wrf-chem to simulate dimenthly sulfide(DMS)
HI Qiwei, It's best to send your questions to the google groups email list. I've added that
4/17/24
Varun Katoch
,
Mary Barth
2
4/2/24
Error while running chem_opt=202
Varun, I have not seen this error before. I just grep SOAP *F in the chem/ directory to find that it
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Error while running chem_opt=202
Varun, I have not seen this error before. I just grep SOAP *F in the chem/ directory to find that it
4/2/24
Dr. Sahir Azmi
,
Indranil Nandi
2
3/29/24
AOD_550 coming out to be very high
Dear Dr. Sahir, First of all if you are trying to calculate AOD (Aerosol Optical Depth) at 550 nm
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AOD_550 coming out to be very high
Dear Dr. Sahir, First of all if you are trying to calculate AOD (Aerosol Optical Depth) at 550 nm
3/29/24
Alice Burton
, …
Rajesh Kumar
11
3/26/24
Re: [WRF-Chem anthro_emiss] Significantly low PM10 concentration + shifted simulated ozone peak
Dear Alice, For chem_opt = 202, PM2.5 and PM10 mass concentrations are calculated in aerosol_driver.F
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Re: [WRF-Chem anthro_emiss] Significantly low PM10 concentration + shifted simulated ozone peak
Dear Alice, For chem_opt = 202, PM2.5 and PM10 mass concentrations are calculated in aerosol_driver.F
3/26/24
Indranil Nandi
, …
Alice Burton
5
3/19/24
Discussion on MOZBC program
Hi Indranil, May I ask you please to share your mozbc.inp script. Cause once I used my own mozbc
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Discussion on MOZBC program
Hi Indranil, May I ask you please to share your mozbc.inp script. Cause once I used my own mozbc
3/19/24
Alice Burton
,
Mary Barth
6
3/19/24
----------Urgent HELP ____Not realistic concentrations of PM10, SO2 and O3
Hi again, I noticed that I did not use mozbc, and so I got those low emissions for ozone. However, I
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----------Urgent HELP ____Not realistic concentrations of PM10, SO2 and O3
Hi again, I noticed that I did not use mozbc, and so I got those low emissions for ozone. However, I
3/19/24
Alice Burton
2/24/24
mieaer_sc: radius_wet set to rmax
Dear all, I am using WRF-Chem version 4.5.2, chem_opt 202. After a few hours of running the model, I
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mieaer_sc: radius_wet set to rmax
Dear all, I am using WRF-Chem version 4.5.2, chem_opt 202. After a few hours of running the model, I
2/24/24
Leo Matak
2/23/24
WRF CHEM 4.4.2 -- Simulation stops when using Single Layer Urban Canopy Model (forrtl: severe: SIGSEGV, segmentation fault occurred)
Dear community, I have been trying to run WRF CHEM simulation using the single layer UCM (
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WRF CHEM 4.4.2 -- Simulation stops when using Single Layer Urban Canopy Model (forrtl: severe: SIGSEGV, segmentation fault occurred)
Dear community, I have been trying to run WRF CHEM simulation using the single layer UCM (
2/23/24
Varun Katoch
,
Mary Barth
2
2/15/24
Subject: WRF-Chem Version 4.4 Performance and RSL File Size Optimization
Hello Varun, It is better to post these questions on the WRF forum where a broader audience can help
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Subject: WRF-Chem Version 4.4 Performance and RSL File Size Optimization
Hello Varun, It is better to post these questions on the WRF forum where a broader audience can help
2/15/24
Setareh Rahimi
,
Gabriele Pfister
2
1/29/24
Program received signal SIGSEGV + chem-opt 202
Hi Setareh I took a quick look at your namelist and there are a number of inconsistencies. Eg - when
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Program received signal SIGSEGV + chem-opt 202
Hi Setareh I took a quick look at your namelist and there are a number of inconsistencies. Eg - when
1/29/24
waheed shah
,
Mary Barth
2
1/22/24
WRF Chem (Smooth Topography)
Hello Waheed, Your question is best asked on the WRF forum page: https://forum.mmm.ucar.edu/ This
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WRF Chem (Smooth Topography)
Hello Waheed, Your question is best asked on the WRF forum page: https://forum.mmm.ucar.edu/ This
1/22/24
ying...@sjsu.edu
, …
Setareh Rahimi
28
1/13/24
"ASTEM internal steps exceeded 200" error when running wrf.exe with MOZART+MOSAIC
Hi Manosh, As you suggested I increased the value of nmax_astem to 9000, and recompiled, but still
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"ASTEM internal steps exceeded 200" error when running wrf.exe with MOZART+MOSAIC
Hi Manosh, As you suggested I increased the value of nmax_astem to 9000, and recompiled, but still
1/13/24