Newlyn (Cornwall) Datum Information 1985-
Benchmark Relationships
- TGZ = Chart Datum = 3.05m below ODN
- TGZ = Chart Datum = 7.801m below TGBM
- TGZ = Chart Datum = 8.329m below Aux 1
- TGZ = Chart Datum = 8.358m below Aux 2
Glossary
- TGZ = Tide Gauge Zero
- TGBM = Tide Gauge Benchmark
- Aux = Auxiliary Benchmark
- ODN = Ordnance Datum Newlyn
- CD = Chart Datum
