The decimal place was shifted one place to the right. There are 4,249 profiles with this error. This is a systematic error, so it can easily be corrected by dividing the depth by 10. These data are all flagged and were not used in the data analyses. Please see the Tech Reports for more details.
Observed data is a bit of a misnomer.
The observed data files contain data on the depths as we received them. For the most part, this means the depths at which the different parameters were measured. In a few cases this means that the originator of the data has done some type of interpolation to their own standard levels. We placed this data in the observed file to differentiate it from data which we ourselves have interpolated. However, since this data does not need to be interpolated, the standard file will contain the same data as the observed file where the standard depths match.