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  1. S

    Input data for CLM

    I am new to CLM and have been successful until the case.setup step following Creating-and-Running-a-CESM-Model/CLM5.0 Tutorial--Creating and Running a CESM Model.docx at master · cwsauburn/Creating-and-Running-a-CESM-Model I wanted to know from where to download the input data for the model.
  2. Z

    Several questions about soil layer structure

    Dear scientists, I have several questions about soil layer structure in CLM4.5 and CLM5.0 (1) Why soil layer structure is non-linear in CLM4.5 and CLM5.0? Why is the difference between the two version? (2) Running CLM4.5 or CLM5.0 over a single-point, observations at 5, 10, 20, 40cm were...
  3. N

    Several questions about CLM5.0 porting

    Hi, i'm a new user of clm5.0. I have several questions (1) I see the Global Attributes in the output xx.nc file showing: title = 'CLM History file information' comment = 'NOTE: None of the variables...
  4. H

    surfrd_get_data ERROR: sum of wt_lunit not 1.0

    Hi, I am running CESM2.1.3 with FMOZ compset, trying to see the impact of landcover change. I keep on changing "PCT_NAT_PFT", "PCT_NAT_PFT+PCT_CFT" and "PCT_NAT_PFT+PCT_CFT+PCT_CROP". Making change on the first two runs well, but when I change PCT_CROP along with PCT_NAT_PFT & PCT_CFT, there is...
  5. J

    What's the difference among TSKIN(skin temperature), TG(ground temperature) and TV(vegetation temature) in CLM5.0 output?

    Hi, I want to validate the CLM5.0 output LST with that of MODIS LST(MOD11A1), I know MODIS LST is skin temperature, so should I use the variable 'TSKIN' of CLM output to compare? I just see there are three kinds of temperature(i.e., TSKIN, TG and TV) in clm5.0 output, however there is...
  6. J

    CLM5.0 ERROR: component_mod:check_fields NaN found in ATM instance: 1 field Sa_u 1d global index: 398.

    Dear staff, I only run CLM5.0 and build it successfully. However, when I ./case.submit, error in cesm.log shows; ERROR: component_mod:check_fields NaN found in ATM instance: 1 field Sa_u 1d global index: 398. The atmospheric forcing dataset I'm using is CLDAS, and using ‘CLMGSWP3v1’...
  7. U

    An error in CLM5.0 mksurfdata process

    When I run ./mksurfdata.pl -r usrspec -hirespft -usr_gname 0.05x0.05 -usr_gdate 210328 to make surface map at 0.05 degree, there exist an error below ------------------------------------- Attempting to make Topography statistics..... domain_read_dims_1d read 1-d length from num_pixels...
  8. ChrisPp

    CLM5-BGC: 3 kilometer Europe: Curvilinear Grid? Restart file not compatible?

    I am using CTSM (Version ctsm1.0.dev084-306-gb146c62) to model Europe on a 3km grid with CLM5-BGC. I had regrid the domain and surface files created by the supplied gen_domain and mksurfdata.pl to fit the required 3 km grid. Because i read in some posts that it is not possible for CLM to model...
  9. K

    How to spin up a transient climate simulation

    Hello, I am configuring a transient climate simulation using BSSP585 compset. I need to spin up my simulation before I ran my simulation from 2015-2100, because I modified the surface data and assigned individual soil column to each pfts. I think the spin up could be done by creating a...
  10. S

    The error of running ./case.submit

    I created the case:./create_newcase --case sp_clm_serial --res f19_g17 --compset I2000Clm50SpGs --mach homebrew --run-unsupported But when I'm using commands:./case.submit The following error occurred: [root@localhost sp_clm_serial]# sudo ./case.submit Creating component namelists Calling...
  11. S

    The error of running ./case.submit

    When I started using commands/ case.submit The following error occurred: Client protocol gftp not enabled Using protocol wget with user anonymous and passwd user@example.edu Could not connect to repo 'ftp://ftp.cgd.ucar.edu/cesm/inputdata' This is most likely either a proxy, or network issue ...
  12. S

    Clm5.0 case running error

    I have successfully created the case:./create_newcase --case case1 --compset I2000Clm50SpGs --res f09_g17 --mach homebrew --run-unsupported But my computer can't be used ./case.submit I choose to use instructions:miexec -n 2 ./cesm.exe But I encountered the following errors: [root@localhost...
  13. S

    Clm5.0 running error

    当我在终端中键入:mpiexec -n 2 ./cesm.exe。发生以下错误:
  14. S

    error with ./case.submit

    我在输入/ case.submit的过程中第一次接触到CLM系统,总数将出现以下错误,希望得到大家的帮助,谢谢!
  15. K

    Generate surfdata with future urban and vegetation rawdata

    Hi, I prepared a 2020 urban raw data with 0.05 deg resolution and I would like to generate a 2020 surface data based on SSP5RCP8.5. Here are the steps I took in mksurfdata_map tool: Generate namelist: ./mksurfdata.pl -res 0.9x1.25 -no-crop -years 2010 -debug --ssp_rcp "SSP5-8.5" In the...
  16. S

    How to modify crop simulation parameters?

    Hi guys~ I am using "CLM5.0_BGCcrop" to simulate the NEE of the crop( irrigation and rotation) . There is a difference between the simulated value and the measured value. Should I modify the phenology(e.g. CNPhenologyMod.F90) of rotation crop to improve the simulation accuracy . Looking forward...
  17. M

    How to change atmosphere forcing in clm5.0 in a regional case?

    Dear scientist, I can run a regional case using GSWP3 as atmosphere forcing in clm5.0. Recently, I want to replace the default GSWP3 with my own atmosphere forcing( named CMFD, 700x400, 3hr, 0.1°). Now the CMFD data has been processed to a single file to meet the requirements of the clm...
  18. K

    Calculate effective emissivity of urban and rural area

    Hi, I ran a CLM5 simulation using I2000Clm50SpGs compset with 25km resolution. I am wondering if we can calculate the effective emissivity of urban and rural area from model radiation and temperature output? For example, I tried to calculate emissivity by Stefan-Boltzmann equation using emitted...
  19. M

    How to create irregular surface datasets using a mask in clm5.0?

    Now I can create regular(rectangle) surface datasets using some scripts attached with clm5.0 (e.g.mknoocnmap.pl, mkmapdata.sh gen_domain etc.), however my study region is irregular, what should I do to ? Is there any instructions to follow? Any suggestion or help is highly appreciated.
  20. M

    How to use mpirun to reduce running time?

    Dear scientist, Now I can successfully run clm5.0 at regional scale and 0.05° spatial resolution. However, it costs lots of time to run. I want it faster but don't konw how to set. The situtaion of my server is as follows: Logical CPU Number: 24 Physical CPU Number: 2 CPU Core Number: 6...