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Hi, I run into an error message from CESM2 srf_emis_specifier "ERROR: Could not find all inputdata on any server" The missing files are in '/glade/campaign/acom/acom-weather/MUSICA/emissions/qfed2.6_finn/f09/' I logged in Derecho and found the directory empty. There was no such an error...

Hi all, I am trying to run a few CESM1.2.2 runs to examine the effect of dust in a paleoclimate scenerio. I set "CAM_CONFIG_OPTS" to "-phys cam4 -prog_species DST" and included modifications per Albani 2014. While DST01DD to DST04DD, DSTSFDRY and DSTSFWET have reasonable values, DF_DST01-04...

What version of the code are you using? CESM2.2.0 in Derecho 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 am using the nudging namelist to specify what re-analysis variables I want to...

Hello there! I'm trying to calculate the residence time of atmospheric aerosols, which variables from the CESM1.2 output should I use? I've learned that I can calculate residence time from both emission and removal perspectives, but I'm not sure how to do it. Thank you in advance!

Hi, I am new in CAM. I would like to ask whether the land use change can affect aerosol simulated by CAM. I am using CESM2.1.5 (with CAM6) and FHIST compset. I am running a simulation with land use changes. What I have known is that there is no aerosol emissions from CLM. According to the...

Hi all, We are excited to introduce IPTpy, a Python-based input processing tool that generates global 0.9° × 1.25° anthropogenic emissions using CAMS5.3, CAMS6.2, and CEDSv2021_04_21 inventories. We are looking for testers to try out the IPTpy by GitHub clone and provide valuable feedback...

Hi all, I'm using the FCHIST mode of the CESM 2.1.3 and I'm using the model to run sensitivities for NOx and NH3. I have two problems: 1.The model output results are in mol/mol, how should I convert them to ug/m-3.(especially NOY，noy = total nitrogen...

Hi all, I'm using the CESM 2.1.3 model for SO2 sensitivity testing (other variables like BC, DMS, etc. are all 0), and I'm using (so4_a1_SRF+so4_a2_SRF+so4_a3_SRF)*1.29 calculating the sulfate concentration. I found that it is not the case that the higher the sulfate concentration, the greater...

Hi all, I am currently trying to add a new tracer to CAM-Chem in CESM2.1.5. My first step to do so is to copy the chem_mech.in file from pp_trop_mam4_vbs elsewhere and modify it to add the new aerosol. However, when doing so I encounter the following error: ERROR: Command...

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 If this is a port to a new machine: Please attach any files you added or changed for the machine port (e.g., config_compilers.xml, config_machines.xml...

What version of the code are you using? cesm2_3_beta17 Have you made any changes to files in the source tree? A new module developed in CLM and is ready to be coupled with CAM Describe every step you took leading up to the problem: Describe your problem or question: Hi, I am new to...

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...

What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? No Describe your problem or question: Hi all, I am running FCnudged and interested in black carbon radiative forcing. In the user guideline, 8. Physics modifications via the namelist —...