sst_update from single data source

[tanksnr]

Hi,

I'd like to know how to utilize SST data from a single data source.
By this I mean the SST data is coming from the same grib file I'm getting the other initial and boundary data from.
Instead of running ungrib twice, I include the SST variable within the main Vtable.
This way I get the SST out into the intermediate files and then it goes successfully into the metgrid output.
I run Real and it looks like the data is passed into the initial and boundary files (still figuring out how to visualize these files to check if it is masked appropriately).

The question is then do I still need to switch on sst_update? And if so, do I still need to specify the following?

        io_form_auxinput4 = 2

        auxinput4_inname = “wrflowinp_d<domain>” (created by real.exe)

        auxinput4_interval = 360, 360, 360

 

[kwerner]

Most large-scale input data do include values for SST, but if you are wanting to use a better source of sst data, you will need to set sst_input in the real/wrf process. Unfortunately the added sst fields will need to be in the wrflowinp file(s) so that they wrf model will recognize them.

To visualize the wrfbdy/wrfinput/wrflowinp files, you can use the 'ncview' program.

 

[tanksnr]

Ok thank you for the response.
But just to be sure I'm getting this right, I only need to set sst_update IF I'm using an alternative source of SST?
So if I am using the SST data already included in the main large-scale input files, then I don't need to set sst_update=1 (and thus don't use a seperate wrflowinp file)?

 

[kwerner]

Yes, that is correct.