doubt in filtering of sst data

[divyadavidt]

Hi everyone...............

I have a doubt dealt with the band filtering of SST data. When I did the same for OSCAR data I got the magnitude in the same order as that of the raw data,i.e., the current data in m/s for my region varies from 0.5 to -0.5 m/s and after doing band pass filtering the resultant values comes in the same order. But when I did the same for SST in Kelvin after converting it to deg C in the order 26 to 30 deg C, I am getting the filtered values as 6 - 8 deg C.
Can anyone help in claryfying why I am getting such a difference in the band passed filtered sst.

Thanks in advance

[madhu]

hi,

your question is not clear to me.. you apply band-pass filter to the full field? I think it is better to analyse anomalies than the full field. after doing filtering extract a time series (at a point) do a power spectrum and verify that filtering is done correctly.

regds,
Madhu

[divyadavidt]

thank you sir.........
I will check and will come back to you