Levelling detail for

Benchmark positionning related to the tide gauge station

2005-02-15

2005-05-18

Benchmarks description table

SOURCE : Fiche d'observatoire de marée n°EPSHOM 1567

Levelling campain :

Benchmark	Latitude (°)	Longitude (°)	Height (m)	Distance to Tide Gauge (m)
N.CP-15	49.48261111	0.11680556	11.905	790
B	----	----	12.437	----
C	49.48113889	0.10569444	---	90
F	49.48188889	0.10605556	12.766	0
G	----	----	13.107	----
H	----	----	---	----

Legend : Fondamental benchmark

Benchmarks vertical positionning diagram

Reference:

Leveling evolution

Stand point			B	B	N.CP-17bis	N.CP-17bis	N.CP-15	N.CP-15	N.CP-18	G
End point			N.CP-17bis	G	G	N.CP-18	G	N.CP-18	G	H
Distance (m)			----	----	----	87	----	822	----	----
Height difference (m)	Campaign 2	2005-05-18	0.3290 ± 0.001	0.6700 ± 0.001	0.3410 ± 0.001	---	1.2020 ± 0.001	---	---	---
Height difference (m)	Campaign 1	2005-02-15	---	---	0.3410 ± 0.001	0.1020 ± 0.001	---	0.9630 ± 0.001	0.2390 ± 0.001	0.2070 ± 0.001
Height difference evolution graph

Download leveling data

TIDE GAUGE LOCAL LEVELING NETWORK DATA OF STATION Le Havre - Vigie Ecluse François 1er ----------------------------------------------------------------------------------------------------- Benchmark Lat. Long. Height Year of determination St.dev Distance_to_TG 10chr (°) 14chr (°) 14chr (m) 10chr 22chr (m)10chr (m) 10chr ----------------------------------------------------------------------------------------------------- N.CP-15 49.482611 0.116806 11.905 2005 0.00000 4190 B ---- ---- 12.437 2005 0.00200 ---- N.CP-18 49.481139 0.105694 12.868 2005 0.00100 4970 N.CP-17bis49.481889 0.106056 12.766 2005 0.00200 4950 G ---- ---- 13.107 2005 0.00100 ---- H ---- ---- 13.044 2005 0.00000 ----

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Co-located instruments

Tide Gauge : LE_HAVRE (HAVRE)
GPS : Le Havre - Vigie Ecluse François 1er (FRAN)