Scheduled Downtime
On Tuesday 24 October 2023 @ 5pm MT the forums will be in read only mode in preparation for the downtime. On Wednesday 25 October 2023 @ 5am MT, this website will be down for maintenance and expected to return online later in the morning.
Normal Operations
The forums are back online with normal operations. If you notice any issues or errors related to the forums, please reach out to help@ucar.edu

how to set start date for data atmosphere forcing?

Hello, Is there something I can set to define what datm forcing data a newCLM run starts with if a finidat from a previous run is provided? I have completed a 50-year spinup run using CLM 4.0 SP using Qian etal. atmosphere forcning, looping from 1972 to 2004.  Now I'd like toconduct two experimental runs that begin where the spinup runfinished.  I've gotten the land components to start from the laststartup run land model restart file by setting finidat in user_nl_clm. But it seems to insist on starting the atmosphere from where the dataatmosphere spinup left off, which happens to be the Qian atmospherefrom Jan 1996.  I want to force my experimental runs with the Qianatmosphere beginning in January 1972.  Is there a setting to definethis?  I don't see a namelist or env_run.xml variable to set thatdate. ==================================================Things I've tried:================================================== It seems like DATM_CLMNCEP_YR_START, DATM_CLMNCEP_YR_END, andDATM_CLMNCEP_YR_ALIGN would define this, but my env_run.xml reads            yet my atm logs still start off with reading all the 1996 forcing data. I've also tried to re-run the first few hours of my spinup run to getan atmosphere restart file for 1 Jan 1972.  in archive/restart/ I getan rpointer.atm containting: ==================================================CLM_t0.datm.r.0001-01-01-01800.nc CLM_t0.datm.rs1.0001-01-01-01800.bin================================================== The above .bin file exists in the restart directory, but the .nc filedoes not...  Pointing "restfilm" in user_nl_datm to the .bin fileseems to have no affect - the atm log files still start with readingforcing data for 1996. Any advice much appreciated!Tim -- Timothy W. HiltonAssistant Project ScientistSierra Nevada Research InstituteUniversity of California, Mercedthilton@ucmerced.edu 
 
Hi all, I actually have a similar problem as above.First I did a continous run, for which the model restarts every week. This works without a problem. During this run, I get weekly restart files, eg.:ANT_022.clm2.r.2011-10-29-00000.ncANT_022.clm2.rh0.2011-10-29-00000.ncANT_022.cpl.r.2011-10-29-00000.ncANT_022.datm.rs1.2011-10-29-00000.bin Now I want to restart another run, that starts 1 month into the previous run. For this restart, the model asks for the rpointer.atm, .lnd and .drv files.For the latter two I have the proper input data (see above), but for rpointer.atm I do not have the ANT_022.datm.r.2011-10-29-00000.nc file. Since I am running with a dead atmosphere (atmosphere is done by another regional model), I would expect that the atm files are not so important? Hence I tried "./" or replaced this by a dummy file. But this also does not work, resulting in the following errors:box_rearrange::compute_dest:: ERROR: no destination found for compdof=Any ideas on this? 
 
Top