Levelling detail for

Benchmark positionning related to the tide gauge station

1999-02-27

Benchmarks description table

SOURCE : Installation de la station DORIS

Levelling campain :

Benchmark	Latitude (°)	Longitude (°)	Height (m)	Distance to Tide Gauge (m)
TIDE	-43.94590913	-176.56026440	9.650	1190
CHAT	-43.95578780	-176.56583820	54.429	10
DORI	-43.95616682	-176.56639570	54.515	50
CHAB	-43.95616682	-176.56639570	56.945	50
5503	-43.95627468	-176.56585650	55.640	50
TGBM	----	----	8.855	----

Legend : Fondamental benchmark, GNSS Benchmarks

Benchmarks vertical positionning diagram

Reference:

Leveling evolution

Stand point			TGBM	DORI	DORI	DORI	DORI	CHAT	CHAT	CHAT	CHAT	CHAB	CHAB	TIDE
End point			TIDE	5503	CHAT	CHAB	TIDE	5503	DORI	CHAB	TIDE	TIDE	5503	5503
Distance (m)			----	45	61	0	1241	54	61	61	1185	1241	45	1236
Height difference (m)	Campaign 1	1999-02-27	0.7950 ± 0.001	1.1250 ± 0.01	-0.0864 ± 0.001	2.4300 ± 0.001	-44.8650 ± 0.01	1.2110 ± 0.01	0.0860 ± 0.01	2.5160 ± 0.01	-44.7790 ± 0.01	-47.2950 ± 0.01	-1.3050 ± 0.01	45.9900 ± 0.01
Height difference evolution graph

Download leveling data

TIDE GAUGE LOCAL LEVELING NETWORK DATA OF STATION Chatham Island ----------------------------------------------------------------------------------------------------- Benchmark Lat. Long. Height Year of determination St.dev Distance_to_TG 10chr (°) 14chr (°) 14chr (m) 10chr 22chr (m)10chr (m) 10chr ----------------------------------------------------------------------------------------------------- CHAT -43.955788 -176.565838 54.429 1999 0.01000 10 DORI -43.956167 -176.566396 54.515 1999 0.01500 50 CHAB -43.956167 -176.566396 56.945 1999 0.01500 50 TIDE -43.945909 -176.560264 9.650 1999 0.00000 1190 5503 -43.956275 -176.565856 55.640 1999 0.01800 50 TGBM ---- ---- 8.855 1999 0.00100 ----

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Co-located instruments

GPS : Chatham Island (CHAT)
Doris : CHATHAM ISLAND (CHAB)
Tide Gauge : CHATHAM ISLAND (CHATH)
GPS : Chatham Island (CHTI)
GPS : Owenga (OWNG)
GPS : Chatham Island - Owenga (OWMG)

LEVELING OF CHATHAM ISLAND