In a previous study by Niiler et al. (1992), advanced very high resolu
tion radiometer (AVHRR) images were used for locating the Iceland-Faer
oe front temperature distributions and gradients .In that study the sa
tellite-sensed sea surface temperatures were found to contain an error
after an atmospheric correction algorithm was applied. This was deter
mined through a regression fit of AVHRR data against in situ aircraft-
deployed expendable bathythermograph (AXBT) and conductivity-temperatu
re-depth measurements. Recently, Minnett (1993) pointed out that an er
ror occurred in that fit. As a result, we decided to repeat the compar
isons of AVHRR sea surface temperature (SST) data against in situ meas
urements. After correcting several errors, we still find a shift of ab
out 2-degrees-C in the scatter of AVHRR against AXBT SST data. The bia
s (mean difference) was 1.73-degrees-C, and the standard deviation was
0.3-degrees-C.