New: "Quality Flags"

All ISMN observations are now being flagged according to new sophisticated quality control procedures. 27 different flags are used to indicate spurious observations and their causes. The data are being checked for geophysical plausibility using thresholds and ancillary data from in-situ measurements and models. Furthermore, spurious observations like outliers and breaks are detected using spectrum-based approaches. More information on the flag definitions can be found on For a detailed explanation of the various quality checks we refer to Dorigo et al.(2013). Notice that some of the flags can only be computed when the ancillary data become available. For this reason, for the most recent observations these flags can be missing and will be computed as soon as the ancillary data become available.

Category: General