please help me in masking  NOAA OI sst data.<br><br>SST data: <a href="http://www.esrl.noaa.gov/psd/cgi-bin/db_search/DBSearch.pl?Dataset=NOAA+Optimum+Interpolation+%28OI%29+SST+V2&amp;Variable=Sea+Surface+Temperature">http://www.esrl.noaa.gov/psd/cgi-bin/db_search/DBSearch.pl?Dataset=NOAA+Optimum+Interpolation+%28OI%29+SST+V2&amp;Variable=Sea+Surface+Temperature</a><br>

Land sea Mask:<a href="ftp://ftp.cdc.noaa.gov/Datasets/noaa.oisst.v2/lsmask.nc"> ftp://ftp.cdc.noaa.gov/Datasets/noaa.oisst.v2/lsmask.nc</a><br><br>regards,<br>Midhun<br>