Station Report
Geoid velocity added
To correct for the vertical drift between reference frames, the velocity of the geoid height (VN) is now calculated and incorporated into the calculation of the orthometric height. View documentation to learn more.
Site Identification
| Name | Province | NTS map sheet | Unique Number | Provincial Identifier | Network |
|---|---|---|---|---|---|
| LON1 LONDON PIER1 | Ontario | 040I14 | 813041 | CBN |
Station Coordinates
Changing these fields will auto-update the station coordinate information below.
The velocities are interpolated from the national Velocity Grid version 7.0.
| Latitude | |
|---|---|
| Longitude | |
| h (metres) | |
| Vφ (mm/y) | |
| Vλ (mm/y) | |
| Vh (mm/y) | |
| X (metres) | |
| Y (metres) | |
| Z (metres) | |
| Vx (mm/y) | |
| Vy (mm/y) | |
| Vz (mm/y) | |
| Zone | |
| Easting (metres) | |
| Northing (metres) | |
| h (metres) | |
| Scale | |
| Combined | |
| Convergence | |
| N (metres) | |
| H (metres) | |
| Published date Project ID | 2023-09-05 M18-020 |
| VN (mm/year) | |
| VH (mm/year) | |
| Equipot. of geoid model (W0, m2s-2) |
Vertical Data (levelling)
| Vertical Datum | Elevation (m) | Order | Gravity (mGal) | Published | Project ID |
|---|---|---|---|---|---|
| CGVD2013 (2010.0) | 271.504 | 1st | 980327.06 | 2013 | H13ML1311 |
| CGVD28 | 271.943 | 1st | 980426.62 | 1999 | N27U99 |
The CGVD2013 height reported in the Vertical Data table is approximate because it is calculated from historical levelling data and not from the combination of GNSS and a geoid model.
Vertical Datum Separation
| Datum 1 − Datum 2 | Elevation 1 (m) | Elevation 2 (m) | Elevation Difference (m) | Epoch |
|---|
Station Marker
| Marker Type | Inspected in | Established by | Status | Comments |
|---|---|---|---|---|
| Self centering plate | 2015 | Canadian geodetic survey - nrcan | Good |
Location
Accessible by passenger car or light truck and a walk of less than 50 m.
London london calibration baseline pier n0. 1 (cbn pillar), concrete pillar with steel top plate on southeast side of highway no. 401, 2.8 km southwest of highway no. 402 overpass, 3.8 km northeast of talbot road overpass, 111 m southwest of centre of scotland drive overpass, 36.7 m from centre line of eastbound lane of highway no. 401, 17.8 m northwest of centre of wonderland road (sideroad running parallel to highway no. 401), opposite point on wonderland road 8.8 m northeast of "intersection ahead" sign for eastbound traffic, 2.8 m northwest of fence line, about 4 m above level of highway no. 401. Elevation taken on top at centre of main circular plate anchored on top of pillar.
Use of Canadian Geodetic Survey products and data is subject to the Open Government Licence - Canada
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