LEVELING OF DAKAR

Benchmark positionning related to the tide gauge station

Benchmarks description table

SOURCE : Franch IGN campaign - Jean-Claude Poyard report (RT 126)

Levelling campain :

SONEL ID Benchmark Latitude (°) Longitude (°) Height (m) Distance to Tide Gauge (m) Installation date Destruction date Details
DAKAR-1 13601 A ---- ---- 9.283 ---- ---- ---- Informations détaillées du repère
DAKAR-2 13601 B ---- ---- 9.211 ---- ---- ---- Informations détaillées du repère
DAKAR-3 13601 C ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-4 UH C ---- ---- 8.505 ---- ---- ---- Informations détaillées du repère
DAKAR-5 BM 21 ---- ---- 9.100 ---- ---- ---- Informations détaillées du repère
DAKAR-6 UH D ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-7 AQ ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-8 13601 D ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-9 13601 E ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-10 F ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-11 G ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-12 H ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-13 I ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-14 A ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-15 B ---- ---- --- ---- ---- ---- Informations détaillées du repère
DAKAR-19 MARE ---- ---- 10.842 ---- ---- ---- Informations détaillées du repère
DAKAR-20 RN-DTGC ---- ---- 19.152 ---- ---- ---- Informations détaillées du repère
DAKAR-21 DAKA ---- ---- 22.306 ---- ---- ---- Informations détaillées du repère
DAKAR-22 DAKR ---- ---- 27.964 ---- ---- ---- Informations détaillées du repère
GPS Benchmark is in red

Benchmarks vertical positionning diagram

Leveling evolution

Stand point DAKAR-1DAKAR-1DAKAR-1DAKAR-1DAKAR-1DAKAR-1DAKAR-1DAKAR-1DAKAR-1DAKAR-1DAKAR-20DAKAR-22DAKAR-22DAKAR-14DAKAR-14DAKAR-14DAKAR-14DAKAR-14DAKAR-14DAKAR-18
End point DAKAR-20DAKAR-5DAKAR-4DAKAR-2DAKAR-19DAKAR-6DAKAR-9DAKAR-3DAKAR-7DAKAR-8DAKAR-22DAKAR-21DAKAR-19DAKAR-10DAKAR-15DAKAR-1DAKAR-13DAKAR-12DAKAR-11DAKAR-5
Distance (m) ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
Height difference (m) Campaign 10 2011-10-15 9.8698
± 0.001
-0.1827
± 0.001
-0.7774
± 0.001
-0.0713
± 0.001
1.5589
± 0.001
8.8203
± 0.002
-5.6580
± 0.002
-17.1220
± 0.002
Instrument type ----
Campaign 9 2008-06-03 -0.7780
± 0.001
-0.0730
± 0.001
-0.4600
± 0.001
0.0260
± 0.001
0.1380
± 0.001
0.9630
± 0.001
1.3290
± 0.001
1.5540
± 0.001
1.6650
± 0.001
Instrument type ----
Campaign 8 2007-10-19 -0.7779
± 0.001
-0.0738
± 0.001
-0.4612
± 0.001
-0.7672
± 0.001
Instrument type ----
Campaign 7 2005-06-08 0.0260
± 0.001
1.3290
± 0.001
1.5540
± 0.001
1.6650
± 0.001
Instrument type ----
Campaign 6 2003-05-06 0.0260
± 0.001
1.6650
± 0.001
Instrument type ----
Campaign 5 2000-03-20 -0.0765
± 0.001
-0.7595
± 0.001
1.3270
± 0.001
Instrument type ----
Campaign 4 1995-09-21 -0.0768
± 0.001
-0.7586
± 0.001
1.3295
± 0.001
Instrument type ----
Campaign 3 1994-04-25 -0.0770
± 0.001
-0.7628
± 0.001
-0.7592
± 0.001
-0.3614
± 0.001
Instrument type ----
Campaign 2 1992-05-01 -0.0774
± 0.001
-0.7631
± 0.001
-0.7599
± 0.001
1.3298
± 0.001
-0.3613
± 0.001
Instrument type ----
Campaign 1 1991-09-12 -0.0775
± 0.001
-0.7599
± 0.001
1.3286
± 0.001
-0.3631
± 0.001
9.0870
± 0.001
Instrument type ----
Height difference evolution graph

Download leveling data

TIDE GAUGE LOCAL LEVELING NETWORK DATA OF STATION DAKAR ----------------------------------------------------------------------------------------------------- Benchmark Lat. Long. Height Year of determination St.dev Distance_to_TG 10chr (°) 14chr (°) 14chr (m) 10chr 22chr (m)10chr (m) 10chr ----------------------------------------------------------------------------------------------------- DAKAR-1 ---- ---- 9.283 2011 0.00100 ---- DAKAR-2 ---- ---- 9.211 2011 0.00200 ---- DAKAR-3 ---- ---- 8.510 2000 0.00100 ---- DAKAR-4 ---- ---- 8.505 2011 0.00200 ---- DAKAR-5 ---- ---- 9.100 2011 0.00000 ---- DAKAR-6 ---- ---- 8.803 2008 0.00200 ---- DAKAR-7 ---- ---- 10.596 2000 0.00100 ---- DAKAR-8 ---- ---- 8.898 1994 0.00100 ---- DAKAR-9 ---- ---- 8.502 2007 0.00100 ---- DAKAR-10 ---- ---- 8.326 2008 0.00100 ---- DAKAR-11 ---- ---- 9.965 2008 0.00100 ---- DAKAR-12 ---- ---- 9.854 2008 0.00100 ---- DAKAR-13 ---- ---- 9.629 2008 0.00100 ---- DAKAR-14 ---- ---- 8.300 2008 0.00000 ---- DAKAR-15 ---- ---- 8.438 2008 0.00100 ---- DAKAR-19 ---- ---- 10.842 2011 0.00200 ---- DAKAR-20 ---- ---- 19.152 2011 0.00200 ---- DAKAR-21 ---- ---- 22.306 2011 0.00400 ---- DAKAR-22 ---- ---- 27.964 2011 0.00300 ---- LEVELING DATA ----------------------------------------------------------------------------------------------------- Stand p. End p. Height_Diff St.Dev. Distance Epoch of Obs. Technique.Type (10 chr) (10 chr) (m) 12chr (m)8chr (m)9chr (year)14chr (15 chr) ----------------------------------------------------------------------------------------------------- DAKAR-1 DAKAR-20 9.8698 0.00100 ---- 2011-10-15 ---- DAKAR-1 DAKAR-5 -0.1827 0.00100 ---- 2011-10-15 ---- DAKAR-1 DAKAR-4 -0.7774 0.00100 ---- 2011-10-15 ---- DAKAR-1 DAKAR-2 -0.0713 0.00100 ---- 2011-10-15 ---- DAKAR-1 DAKAR-19 1.5589 0.00100 ---- 2011-10-15 ---- DAKAR-20 DAKAR-22 8.8203 0.00200 ---- 2011-10-15 ---- DAKAR-22 DAKAR-21 -5.6580 0.00200 ---- 2011-10-15 ---- DAKAR-22 DAKAR-19 -17.1220 0.00200 ---- 2011-10-15 ---- DAKAR-14 DAKAR-10 0.0260 0.00100 ---- 2008-06-03 ---- DAKAR-14 DAKAR-15 0.1380 0.00100 ---- 2008-06-03 ---- DAKAR-14 DAKAR-1 0.9630 0.00100 ---- 2008-06-03 ---- DAKAR-14 DAKAR-13 1.3290 0.00100 ---- 2008-06-03 ---- DAKAR-14 DAKAR-12 1.5540 0.00100 ---- 2008-06-03 ---- DAKAR-14 DAKAR-11 1.6650 0.00100 ---- 2008-06-03 ---- DAKAR-1 DAKAR-4 -0.7780 0.00100 ---- 2008-06-03 ---- DAKAR-1 DAKAR-6 -0.4600 0.00100 ---- 2008-06-03 ---- DAKAR-1 DAKAR-2 -0.0730 0.00100 ---- 2008-06-03 ---- DAKAR-1 DAKAR-2 -0.0738 0.00100 ---- 2007-10-19 ---- DAKAR-1 DAKAR-4 -0.7779 0.00100 ---- 2007-10-19 ---- DAKAR-1 DAKAR-6 -0.4612 0.00100 ---- 2007-10-19 ---- DAKAR-1 DAKAR-9 -0.7672 0.00100 ---- 2007-10-19 ---- DAKAR-14 DAKAR-11 1.6650 0.00100 ---- 2005-06-08 ---- DAKAR-14 DAKAR-10 0.0260 0.00100 ---- 2005-06-08 ---- DAKAR-14 DAKAR-12 1.5540 0.00100 ---- 2005-06-08 ---- DAKAR-14 DAKAR-13 1.3290 0.00100 ---- 2005-06-08 ---- DAKAR-14 DAKAR-11 1.6650 0.00100 ---- 2003-05-06 ---- DAKAR-14 DAKAR-10 0.0260 0.00100 ---- 2003-05-06 ---- DAKAR-1 DAKAR-2 -0.0765 0.00100 ---- 2000-03-20 ---- DAKAR-1 DAKAR-3 -0.7595 0.00100 ---- 2000-03-20 ---- DAKAR-1 DAKAR-7 1.3270 0.00100 ---- 2000-03-20 ---- DAKAR-1 DAKAR-2 -0.0768 0.00100 ---- 1995-09-21 ---- DAKAR-1 DAKAR-3 -0.7586 0.00100 ---- 1995-09-21 ---- DAKAR-1 DAKAR-7 1.3295 0.00100 ---- 1995-09-21 ---- DAKAR-1 DAKAR-2 -0.0770 0.00100 ---- 1994-04-25 ---- DAKAR-1 DAKAR-3 -0.7592 0.00100 ---- 1994-04-25 ---- DAKAR-1 DAKAR-8 -0.3614 0.00100 ---- 1994-04-25 ---- DAKAR-1 DAKAR-9 -0.7628 0.00100 ---- 1994-04-25 ---- DAKAR-1 DAKAR-2 -0.0774 0.00100 ---- 1992-05-01 ---- DAKAR-1 DAKAR-3 -0.7599 0.00100 ---- 1992-05-01 ---- DAKAR-1 DAKAR-8 -0.3613 0.00100 ---- 1992-05-01 ---- DAKAR-1 DAKAR-7 1.3298 0.00100 ---- 1992-05-01 ---- DAKAR-1 DAKAR-9 -0.7631 0.00100 ---- 1992-05-01 ---- DAKAR-1 DAKAR-2 -0.0775 0.00100 ---- 1991-09-12 ---- DAKAR-1 DAKAR-3 -0.7599 0.00100 ---- 1991-09-12 ---- DAKAR-1 DAKAR-8 -0.3631 0.00100 ---- 1991-09-12 ---- DAKAR-1 DAKAR-7 1.3286 0.00100 ---- 1991-09-12 ----

Co-located instrumentsDAKAR

Photo albumDAKAR