C. CLM namelist variables

This appendix describes a small subset of the namelist variables recognized by CLM 3.0. For more information, please see the CLM User's Guide.

A CAM model run is controlled using the build-namelist facility described in Section 2.2. The focus of this appendix is to provide a reference for select CLM variables that may be set through the use of build-namelist's -namelist option.

Table C.1: CLMEXP namelist variables

Name	Type	Default	Ex.	Description
FINIDAT	Char*256	None		Initial dataset of the land surface model state (initial temperatures, soil water content etcetera). If this dataset is not provided the model will use reasonable values to start from. Note, that some features of the land-surface model take several simulation years to "spin-up" before they reach equilibrium.
FPTFTCON	Char*256	None		Dataset of plant-function types. Setting is Required
FSURDAT	Char*256	None		Time invariant surface dataset for this resolution. If this dataset is not provided on an initial run the high resolution datasets MKSRF_FVEGTYP, MKSRF_FSOITEX, MKSRF_FSOICOL, MKSRF_FLANWAT, MKSRF_FURBAN, MKSRF_FGLACIER, and MKSRF_FLAI must be provided, and will be used to create the surface dataset. On a continuation run (branch or restart) this dataset MUST be provided.
MKSRF_FVEGTYP	Char*256	None		High resolution Vegetation Type dataset needed to determine the time-invariant surface dataset (FSURDAT). (Required if FSURDAT not defined)
MKSRF_FSOITEX	Char*256	None		High resolution Soil Texture dataset needed to determine the time-invariant surface dataset (FSURDAT). (Required if FSURDAT not defined)
MKSRF_FSOICOL	Char*256	None		High resolution Soil Color dataset needed to determine the time-invariant surface dataset (FSURDAT). (Required if FSURDAT not defined)
MKSRF_FLANWAT	Char*256	None		High resolution Land water (lake and river) dataset needed to determine the time-invariant surface dataset (FSURDAT). (Required if FSURDAT not defined)
MKSRF_FURBANP	Char*256	None		High resolution Urban Area dataset needed to determine the time-invariant surface dataset (FSURDAT). (Required if FSURDAT not defined)
MKSRF_FGLACIER	Char*256	None		High resolution Glacier dataset needed to determine the time-invariant surface dataset (FSURDAT). (Required if FSURDAT not defined)
MKSRF_FLAI	Char*256	None		High resolution Leaf Area Index (LAI) dataset needed to determine the time-invariant surface dataset (FSURDAT). (Required if FSURDAT not defined)