Occasionally, data which have been reported as ratified are subsequently changed or deleted in light of new information received by the QA/QC Unit. Here, sites can be checked to see if any data have been changed.
The details of significant changes to ratified data shown on this page are for automatic monitoring stations since 2009. Such changes may include large sections of data being added or removed, or changes which would significantly affect the exceedence statistics for a dataset.
Details of the data verification and ratification process (PDF 100KB) may also be of interest.
Select the site you are interested in from the drop-down box for a list of these changes.