Enquiry about SST update

[biplobsana]

I have converted daily GHRSST data (netCDF) into intermediate format. I got met_em file where SST range showing 0 to 300 K range by default and after changing the range (280 - 300 K) i got proper SST figure. I have used the following METGRID.TBL for SST.
========================================
name=SST
interp_option=sixteen_pt+four_pt+average_4pt
fill_missing=0
masked=land
interp_land_musk=SSTLSEA(1)
missing_value=-1.E30
flag_in_output=FLAG_SST
========================================
Question 1. Is there any change required in my METGRID.TBL for better result?
Question 2. Is my conversion of netCDF file into intermediate is correct based on the metgrid output ? (I have attached the figure below)

Question 3. I have FNL input data 6 hourly basis (00, 06, 12, 18) but the high resolution SST data is available on daily basis. Should i use the same SST data, creating intermediate file for 4 time step (00, 06, 12, 18) in metgrid? If i don,t give the SST data at 6 hourly basis, there will be missing value in met_em file. What should be the best practices here?

 

[Ming Chen]

Please see my answers below:

I have converted daily GHRSST data (netCDF) into intermediate format. I got met_em file where SST range showing 0 to 300 K range by default and after changing the range (280 - 300 K) i got proper SST figure. I have used the following METGRID.TBL for SST.
========================================
name=SST
interp_option=sixteen_pt+four_pt+average_4pt
fill_missing=0
masked=land
interp_land_musk=SSTLSEA(1)
missing_value=-1.E30
flag_in_output=FLAG_SST
========================================
Question 1. Is there any change required in my METGRID.TBL for better result?

No, the current option is fine for your case.

Question 2. Is my conversion of netCDF file into intermediate is correct based on the metgrid output ? (I have attached the figure below)

It looks correct.

Question 3. I have FNL input data 6 hourly basis (00, 06, 12, 18) but the high resolution SST data is available on daily basis. Should i use the same SST data, creating intermediate file for 4 time step (00, 06, 12, 18) in metgrid? If i don,t give the SST data at 6 hourly basis, there will be missing value in met_em file. What should be the best practices here?

No, you don't have to. Just keep the daily SST data and set the update interval to 86400, you should be fine.