Does GFS data contain SST parameters?

[fisky]

Hi,

I'm initilizing my WRF forcast model with GFS data. I was under the impression the GFS contained SST information but I can't see it in the parameter list anywhere. Does anyone know if it's under a different parameter name or somthing like that?

If its not included is there a reliable source for it anyone can reccomend?

Cheers,
Andrew

 

[haiqingsong]

I did not see SST in GFS data.

 

[fisky]

Is there another paramter that the WRF would use in its place I was wondering? Skin temp or something similar? I'm thinking I may need to add it from another source for accurate forcasts over an ocean area...

 

[Ming Chen]

GFS contains Skin Temperature, which is used as SST.

 

[fisky]

GFS contains Skin Temperature, which is used as SST.

Thanks @Ming Chen. Would you see a benefit in downloading actual SST data from NCEP and inputting that into the WRF as well?? I’m interested in short range forecasting over ocean / land.

 

[haiqingsong]

Thanks @Ming Chen. Would you see a benefit in downloading actual SST data from NCEP and inputting that into the WRF as well?? I’m interested in short range forecasting over ocean / land.

There is no SST data with a time resolution of several hours.

 

[fisky]

There is no SST data with a time resolution of several hours.

I know, just to provide an initial constant though?

 

[haiqingsong]

I know, just to provide an initial constant though?

A resolution of 6 hours or more is the best, but no such satellite SST production has been found.

 

[fisky]

A resolution of 6 hours or more is the best, but no such satellite SST production has been found.

The WRF online tutorial has a case for using daily SST data. They adjust the namelist so Ungrib interpolates it to 6 hour intervals I believe…

 

[haiqingsong]

The WRF online tutorial has a case for using daily SST data. They adjust the namelist so Ungrib interpolates it to 6 hour intervals I believe…

Which is better, the Daily Value SST or the SKIN TEMP that comes with GFS?

 

[fisky]

Which is better, the Daily Value SST or the SKIN TEMP that comes with GFS?

Exactly.