Add Data Corrections for Climate Station Data

This would be adding corrections to the data import processes for climate observations, looking for abnormal data / outliers,
and then adding in some auto corrections for that data.

The issue points to the climate observation data import processes but names no files, tests, or entry points. First determine which abnormal values and outliers are in scope and how automatic corrections should be defined. Done would mean the agreed corrections are applied during import and their behavior is verified.

Written by the indexing model from the issue text.