Interpretation rule
shoreline-ispra-nessuna-informazione
When it applies
Source class
NESSUNA_INFORMAZIONE
The rule fires when the named source publishes this class for the point being asked about. Until the source does, TerraOverview adds nothing.
TerraOverview interpretation: stretch of coast within 250 m with no assessment of its dynamics
ISPRA drew the Italian shoreline on the 2006 orthophotos and on imagery of 2017–2020 and compared the two lines, stretch by stretch, after aligning them: more than 5 metres landward is erosion, more than 5 metres seaward is advance, within 5 metres is stable. It is a displacement observed between two dates, not a yearly rate, not a forecast and not its cause. TerraOverview reports the stretches within 250 metres of the point; that distance is its own choice.