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Hi, everyone. I have 1 question about the unit convertion. I want to use CEDS emission data to simulate. I want to use the emission from aircraft so I think I must convert its unit (kg/m2/s) to molecules/cm3/s. I try to calculate but I do not know if my calculation is right. My calculation is...

Hello guys! I want to replace the default SO2 emission with my own SO2 emissions. However, I don't know what the dimension 'lev' means. Also, I don;t know the unit of it.

What version of the code are you using? - I ran FCnudged using CAM6.3 and CTSM5.2. Have you made any changes to files in the source tree? - No When I checked the output of AODVIS, the northern regions did not have data. Could anyone tell me why? Is it due to SGLC or is it due to using FV...

Why are all the wet deposition values of sulfur that I simulated negative? I have uploaded the use_case I used to the attachment.

Hi！ I am currently using the FHIST compset of CESM2.1.3 for simulation, with the simulation period from 1979 to 2014. I executed a hybrid run based on the default REFCASE： I want to diagnose the radiative forcing of dust aerosols, so I edited user_nl_cam according to the user guideline (8...

What version of the code are you using? CESM 2.2.0 Have you made any changes to files in the source tree? Some changes in nudging module Describe every step you took leading up to the problem: I am trying to run a hybrid case. First I run the startup case, which it is December 2023 for daily...

I am currently conducting sensitivity experiments using CESM, but I have encountered some issues. Could you please explain the meaning of the unit "kg/kg" for the aerosol concentration variables such as so4_a1 and so4_a2 in the model outputs? Additionally, how can these values be converted into...

I am currently conducting sensitivity experiments using CESM, but I have encountered some issues. Could you please explain the meaning of the unit "kg/kg" for the aerosol concentration variables such as so4_a1 and so4_a2 in the model outputs? Additionally, how can these values be converted into...

I am currently using CESM2.2.0 to simulate N and S deposition, PM2.5, and AOD values, but I am unable to run it successfully. I encounter the following error during the execution, and I would like to know the cause[ "CAM_CONFIG_OPTS" value="-phys cam6 -chem trop_strat_mam4_vbs -co2_cycle]...

Dear CESM Community, I am currently working on an aquaplanet simulation using CESM, and I would like to disable specific land-based aerosol modes while using MAM7. The aerosol modes I want to remove are as follows: Primary carbon Fine dust Coarse dust However, I still want to keep sea salt...

What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? Some modifications in nudging module Describe every step you took leading up to the problem: I am looking to run CAM6 during the current year 2024 and I would need to update some files in...

What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? Some modifications in the nudging module Describe every step you took leading up to the problem: I ran some tests using new re-analisys data and modifying aerosols and after running a...

Hello, I would like to do an aerosol injection experiment at a specific altitude, specific location, similar to the ARISE-SAI experiment. I have questions regarding the experiment. 1. is it possible to do SAI experiment with CAM6-chem? If yes, how can I set some variables of user_nl_cam to do...

Hi! I am currently using the FHIST compset of CESM2.1.3 for simulation, with a planned simulation period from 2000 to 2014. I have set up two sets of tests: (1) one set of tests defaults to turning on dust emission; (2) Another set of tests turned off dust emission by setting the soil_erod_file...

What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? Some changes in the nudging module Describe every step you took leading up to the problem: I want to run CESM(CAM6) beyond 2015 and I have updated the biomass burning using the emission...

What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? No Describe every step you took leading up to the problem: I tried to use CAMS anthropogenic emission data in CESM. In the IPT algorithm...

I wanna konw how to change the anthropogenic PM2.5 inventory in cesm, what are the steps and where I can find the guidance? Thanks

Hi, I am using the CESM 2.1.3. If I want to use the HIST component set that combines cam6 with the mozart chemical mechanism, do I use the compset FHIST and set CAM_CONFIG_OPTS=-chem trop_mozart or do I use FCHIST and change to CAM_CONFIG_OPTS=-chem trop_mozart？ Sincerely hope to get your...

Hi there, I am currently using CESM2.3.ahpha17d with the CAM tag set to cam6_3_144, the compset as FCnudged, and the resolution set to ne30_ne30_mg17. During the check inputdata phase, I encountered an issue where the data MERRA2_ne30_32L is missing. I have checked the repository at...

I am new to CESM, when I run the CESM2.1.3 and the output of black carbon is confusing for me. There are bc_a1 and bc_a4, also bc_c1, so what the meaning of them? If I want to calculate the bc concentration, is the sum of bc_a1 and bc_a4? The units of bc_a1 is kg/kg, so how to convert it to...