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cam6

  1. nuvolet

    Use ERA5 regrid files for FCnudge - Modifying IPT-master ERA5 code

    What version of the code are you using? CESM2.2.2, CAM6 Have you made any changes to files in the source tree? Changes in nudging and CLM Describe every step you took leading up to the problem: I need to use ERA5 re-analisys files to nudge aerosols. Describe your problem or question: I...
  2. J

    Switching FWsc2010climo from f09_f09_mg17 (~0.9°×1.25°) to ~1°×1° grid – required steps and potential issues

    Hello, I am working with the FWsc2010climo compset. The default resolution is f09_f09_mg17. For my application, I would like to use a more regular ~1° × 1° grid instead. From what I understand, this would require regridding all of the input data (initial conditions, prescribed ozone, CO₂...
  3. P

    surface drag

    What version of the code are you using? I am using CESM2.1.5 Have you made any changes to files in the source tree? I have not made any change yet Describe your problem or question: Dear CESM staff: I am working with the following component set...
  4. nuvolet

    Some NCL scripts needed

    What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? Changes in dust scheme and nuding Describe every step you took leading up to the problem: I need to create new emissions for current months of 2025 and I need some specific NCL libraries...
  5. J

    How can sea-surface-temperature data with daily or even hourly resolution be used as the SST input to the CESM model (in the F-compset)?

    When simulating precipitation after 2015, the model results show that, compared with ERA5, the large-scale summer rain belt over China and adjacent regions is shifted northward, convective precipitation is relatively weak, and the western Pacific subtropical high (defined by the 5880-gpm...
  6. D

    Checking radiatively active CO2 concentration

    I am a beginner to CESM, and am using CESM2.1.3 to run a CO2 forcing experiment. I would like to increase the CO2 concentration by 0.73% for 190 years to go from 284 ppmv (as set by co2vmr in the restart files) to 1135 ppmv. Can I use the following namelist variables to do so? Any suggestions...
  7. X

    Inquiry about Calculating Apparent Heat Source and Moisture Sink in CAM6.0

    I am currently using the CAM6.0 model and would like to calculate the apparent heat source and moisture sink. From previous discussions on this topic, I found some answers regarding CAM3: For temperature, the total physics tendency is PTTEND, where: PTTEND = DTCOND + QRS + QRL + DTV + TTGWORO...
  8. nuvolet

    What and where is located the subroutine to generate all the log files in CESM?

    What version of the code are you using? CESM2.2.2 in Derecho Have you made any changes to files in the source tree? Some modification in nudging module Describe your problem or question: What and where is located the subroutine that generates all the log files?.. Thanks
  9. nuvolet

    Where is initialized/populated q-array for all the constituents in CAM6?

    What version of the code are you using? CESM2.2.1/CAM6 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: After modifying the nudging module I want to see how the q-array where are all the...
  10. qige

    CAM6 temperature and moisture balances and outputs

    Hello, I am a user of CESM 2.2.2 and the atmospheric model is CAM6. I want to add additional outputs for some variables involving temperature and moisture balances. To do this, I need to find relevant variables and understand how they are calculated. I find this document useful...
  11. S

    Questions about using F_TUV method in WACCM or CAM-Chem

    What version of the code are you using? CESM2.1.3, cam6, clm5 Have you made any changes to files in the source tree? I haven't change the code. I want to run a base case successfully at first. Describe your problem or question: I have tried different compsets, including FCSD, FC2010climo...
  12. K

    How to run CAM6 with CLM4 in CESM2

    What version of the code are you using? CESM2.1.5 Have you made any changes to files in the source tree? Not yet Describe your problem or question: Dear community, I plan to run a set of nudging experiments based on compset FHIST_BGC in CESM2.1.5. However, instead of using the default...
  13. A

    PCMDI-SST vs. HadOIBl-SST

    Dear all, I am currently evaluating two SST datasets, HadOIBl-SST and PCMDI-SST. While PCMDI-SST was based on observational data and explicitly designed for AMIP runs, I noticed that CESM2 predominantly uses the HadOIBl-SST dataset. I looked at both datasets, and the most significant...
  14. B

    Cam stuck at the process "Creating new decomp"

    Hi, I am trying to rerun a version of the CAM6 PPE on Derecho, incorporating a few changes to the model. To start, I have just been trying to get the correct CAM6 setup I need to build and run on Derecho. I recently was successful in building the model and submitting a case, but the case timed...
  15. S

    How to simulate only the cam - atm

    -I am using CESM2.1.5, due to the HPC storage quota. I want to run cam atm components only, and remove the rest components . Is there a possibility of getting xml format, which was prepared to simulate only the atmospheric (atm) components please?
  16. A

    F2000climo compset with time-varying input files

    Hi everyone, I've been working with the F2000climo compset and noticed that the input files seem to contain only twelve months of data, which I assume is circulated annually by the model. However, I would like to introduce time-varying SST and CO2 data in my simulations. To achieve this, I'm...
  17. nuvolet

    Modify rad_climate in CAM6

    Greetings, I am working on how to modify the mass mixing ratio constituents in some modes and in the user guide for CAM6 indicates that: "The names of the mass mixing ratio constituents are hardcoded in the modal_aero_initialize_data module. " Where could I find that...
  18. O

    Questions on CAM6 nudging parameters

    Hi, I am looking to produce some nudged simulations in the CESM2 CAM6 subseasonal prediction system. Some of these will be everywhere (constant window function) and some will be in particular boxes using a window function horizontally and vertically (tropical troposphere, extratropical NH...
  19. L

    "ERROR: cam_filemap_get_filemap: internal error, pos" in CESM 2.1.3

    Hello, everyone, I am using CESM 2.1.3 PC6 compset aiming to diagnosis of radiation flux by PORT. This compset requires a set of input file. I used the h1 file exported from F2000climo as a "base", with modified variables in it. I modified all the variables containing the time and vertical...
  20. X

    run ETEST compset with CESM2.1.2

    Hi all, I am doing some simulation experiments by changing PFT fractions to representing vegetation changes. I run simulations for 90 years with CESM2.1.2 ETEST(2000_CAM60_CLM50%SP_CICE_DOCN%SOM_MOSART_SGLC_SWAV_TEST) compset and with f19_g17 resolution. ./create_newcase --case ETEST_oldsurf...
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