Levelling detail for

Benchmark positionning related to the tide gauge station

2002-03-06

2006-06-27

Benchmarks description table

SOURCE : Fiche d'observatoire de marée SHOM n°3061

Levelling campain :

Benchmark	Latitude (°)	Longitude (°)	Height (m)	Distance to Tide Gauge (m)
A	48.36091660	-4.77672222	23.395	350
B	48.35897222	-4.78027778	13.422	60
C	48.35958333	-4.78272222	12.549	140
D	48.35958333	-4.78269444	12.726	140
F	----	----	12.046	----
G	48.35947222	-4.78277778	11.635	140
H	48.35902778	-4.78038889	11.869	50
I	48.36088889	-4.77716667	12.653	320
J	----	----	12.698	----
K	----	----	12.225	----
L	----	----	12.243	----
N	----	----	15.367	----

Legend : Fondamental benchmark

Benchmarks vertical positionning diagram

Reference:

Leveling evolution

Stand point			G	G	G	H	H	H	H	H	H	H	I	F	F	J	K	B
End point			D	C	B	I	F	J	K	C	D	B	A	B	J	B	B	A
Distance (m)			14	13	193	316	----	----	----	184	182	10	33	----	----	----	----	341
Height difference (m)	Campaign 5	2021-06-14	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	Campaign 4	2016-06-13	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	Campaign 3	2014-10-20	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	Campaign 2	2006-06-27	1.0600 ± 0.001	0.8840 ± 0.001	1.7540 ± 0.001	0.7780 ± 0.001	0.1760 ± 0.001	0.8280 ± 0.001	0.3490 ± 0.001	---	---	---	10.7410 ± 0.001	1.3730 ± 0.001	---	0.7210 ± 0.001	1.2000 ± 0.001	9.9700 ± 0.001
	Campaign 1	2002-03-06	1.0520 ± 0.001	0.8750 ± 0.001	---	0.7800 ± 0.001	0.1760 ± 0.001	---	0.3300 ± 0.001	0.6670 ± 0.001	0.8540 ± 0.001	1.5480 ± 0.001	10.7360 ± 0.001	1.3720 ± 0.001	0.6520 ± 0.001	0.7200 ± 0.001	1.2180 ± 0.001	9.9680 ± 0.001
Height difference evolution graph

Download leveling data

TIDE GAUGE LOCAL LEVELING NETWORK DATA OF STATION Lampaul Plouarzel ----------------------------------------------------------------------------------------------------- Benchmark Lat. Long. Height Year of determination St.dev Distance_to_TG 10chr (°) 14chr (°) 14chr (m) 10chr 22chr (m)10chr (m) 10chr ----------------------------------------------------------------------------------------------------- A 48.360917 -4.776722 23.395 2021 0.00000 9570 B 48.358972 -4.780278 13.422 2021 0.00100 9820 C 48.359583 -4.782722 12.549 2021 0.00100 9780 D 48.359583 -4.782694 12.726 2021 0.00100 9780 F ---- ---- 12.046 2021 0.00100 ---- G 48.359472 -4.782778 11.635 2021 0.00100 9790 H 48.359028 -4.780389 11.869 2021 0.00100 9810 I 48.360889 -4.777167 12.653 2021 0.00100 9570 J ---- ---- 12.698 2021 0.00100 ---- K ---- ---- 12.225 2021 0.00100 ---- L ---- ---- 12.243 2021 0.00100 ---- N ---- ---- 15.367 2021 0.00100 ----

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Co-located instruments

Tide Gauge : LE_CONQUET (LCONQ)
GPS : Lampaul Plouarzel (LPPZ)