LEVELING OF ASCENSION ISLAND

Benchmark positionning related to the tide gauge station

Benchmarks description table

SOURCE : Ascension ITRF co-location site survey - T. Donal (IGN)

Levelling campain :

Benchmark Latitude (°) Longitude (°) Height (m) Distance to Tide Gauge (m) Details
POL13 ---- ---- 10.184 ---- Informations détaillées du repère
POL18 -7.89288699 -14.38577520 14.641 0 Informations détaillées du repère
DORIS/repère -7.91625972 -14.33232827 --- 6440 Informations détaillées du repère
DORIS/ANT -7.91625973 -14.33232829 --- 6440 Informations détaillées du repère
ASCG ---- ---- 29.792 ---- Informations détaillées du repère
Legend : Fondamental benchmark, GNSS Benchmarks

Benchmarks vertical positionning diagram

Reference:

Leveling evolution

Stand point POL13ASCGPOL18POL18POL18ASC1ASC1DORIS/repère
End point POL18POL18ASC1DORIS/ANTDORIS/repèreDORIS/ANTDORIS/repèreDORIS/ANT
Distance (m) ---- ---- 707264356435960596050
Height difference (m) Campaign 2 2015-07-15 4.4570
± 0.01
-15.1509
± 0.02
------------------
Campaign 1 2003-03-16 ------82.2680
± 0.01
15.6230
± 0.01
15.0750
± 0.01
-66.6450
± 0.01
-67.1930
± 0.01
0.5480
± 0.001
Height difference evolution graph

Download leveling data

TIDE GAUGE LOCAL LEVELING NETWORK DATA OF STATION Ascension Island ----------------------------------------------------------------------------------------------------- Benchmark Lat. Long. Height Year of determination St.dev Distance_to_TG 10chr (°) 14chr (°) 14chr (m) 10chr 22chr (m)10chr (m) 10chr ----------------------------------------------------------------------------------------------------- POL18 -7.892887 -14.385775 14.641 2015 0.01000 7070 ASC1 -7.951214 -14.412072 96.909 2003 0.01500 0 DORIS/repà -7.916260 -14.332328 29.716 2003 0.01800 9600 DORIS/ANT -7.916260 -14.332328 30.264 2003 0.01800 9600 POL13 ---- ---- 10.184 2015 0.00000 ---- ASCG ---- ---- 29.792 2015 0.02300 ----

Co-located instruments