Adding Resolution Names

If you are adding files for new resolutions which aren't covered in the namelist_definition file -- you'll need to add them in. The list of valid resolutions is in the id="res" entry in the models/lnd/clm/bld/namelist_files/namelist_definition.xml file. You need to choose a name for your new resolution and simply add it to the comma delimited list of valid_values for the id="res" entry. The convention for global Gaussian grids is number_of_latitudes x number_of_longitudes. The convention for global finite volume grids is latitude_grid_size x longitude_grid_size where latitude and longitude is measured in degrees. For regional or single-point datasets the names have a grid size number_of_latitudes x number_of_longitudes followed by an underscore and then a descriptive name such as a City name followed by an abbreviation for the Country in caps. The only hard requirement is that names be unique for different grid files. Here's what the entry for resolutions looks like in the file:

<entry id="res" type="char*30" category="default_settings"
       group="default_settings"  
       valid_values=
"128x256,64x128,48x96,32x64,8x16,94x192,0.23x0.31,0.47x0.63,
0.9x1.25,1.9x2.5,2.65x3.33,4x5,10x15,5x5_amazon,1x1_tropicAtl,
1x1_camdenNJ,1x1_vancouverCAN,1x1_mexicocityMEX,1x1_asphaltjungleNJ,
1x1_brazil,1x1_urbanc_alpha,0.5x0.5">
Horizontal resolutions
</entry>

When using PTCLM and adding supported single-point resolutions, you'll also want to add these resolutions to the models/lnd/clm/bld/config_files/config_definition.xml under the sitespf_pt name. The entry in that file looks like:

<entry id="sitespf_pt" 
valid_values="none,1x1_brazil,1x1_tropicAtl,5x5_amazon,
1x1_camdenNJ,1x1_vancouverCAN,1x1_mexicocityMEX,1x1_asphaltjungleNJ,
1x1_urbanc_alpha,1x1_numaIA,1x1_smallvilleIA" 
value="none" category="physics">
Flag to turn on site specific special configuration flags for supported single
point resolutions.
Currently the only special settings are for MEXICOCITY and VANCOUVER, which make
changes to urban parameters.
</entry>