edmonton gps validation network manual · gps validation networks are mainly used to evaluate...

Edmonton GPS ValidationNetwork

March 1997

AlbertaEnvironmental Protection

Resource Data Division

Natural ResourcesCanada

Geodetic SurveyDivision

Edmonton GPS Validation Network

Prepared by

Geodetic Survey Division

Natural Resources Canada

in cooperation with


Alberta Environmental Protection

Additional copies of this

document are available from:

Client Services Branch


Alberta Environmental Protection

12th Floor, Oxbridge Place

9820-106 Street

Edmonton, Alberta

T5K 2J6

Tel: (403) 427-7374

Fax: (403) 422-0973

ii

Edmonton GPS Validation Network - March 1997

Foreword

The purpose of this booklet is to provide the basic information requiredfor users to test their GPS equipment and positioning methodology onthe Edmonton GPS Validation Network. Please contact Resource DataDivision, Alberta Environmental Protection, for information related tothis network that is not included in this document.

iii


Table of ContentsPage

1. Introduction to GPS Validation Networks .................................... 1

Background.......................................................................................................1Applications ......................................................................................................1Characteristics...................................................................................................3

2. The Edmonton GPS Validation Network ...................................... 4

Description .......................................................................................................4Determination of Network Validation Values.....................................................4

Appendices

A. Station Descriptions and Site Sketches...........................................................8

Notice to Users .................................................................................................8ASCM 107797 (Pier E - NGDB 89X005)..........................................................9ASCM 208595 (937+56.18, Pier 18 - NGDB 77X251) ...................................10ASCM 227371 (937+56.17, Pier 17 - NGDB 89X011) ...................................11ASCM 265959 (937+56.14, Pier 14 - NGDB 78X000) ...................................12ASCM 320424 (Pier A - NGDB 89X001) .......................................................13ASCM 388454 (Pier C - NGDB 89X003) .......................................................14ASCM 421784 (Pier D - NGDB 89X004) .......................................................15ASCM 483404 (Pier F - NGDB 89X006)........................................................16ASCM 492744 (Pier B - NGDB 89X002) .......................................................17ASCM 814343 (Pier G - NGDB 90X006) .......................................................18

B. Tables of Values.............................................................................................191. Ellipsoidal Coordinates.............................................................................192. Geocentric Cartesian Coordinates.............................................................203. UTM Mapping Plane Coordinates ............................................................204. Interstation Cartesian Coordinate Differences...........................................215. Absolute 95% 3-D Confidence Ellipsoids .................................................236. Absolute 95% Horizontal Confidence Ellipses ..........................................237. Absolute 95% Vertical Confidence Intervals.............................................238. Relative 95% 3-D Confidence Ellipsoids...................................................249. Relative 95% Horizontal Confidence Ellipses ...........................................2610. Relative 95% Vertical Confidence Intervals ..............................................26

C. Contacts for Additional Information ...........................................................28

D. Pillar Design - Edmonton GPS Validation Network ForcedCentering Pillars............................................................................................291. Pillar Construction.....................................................................................292. Cross Section ............................................................................................293. Forced Centering Plate ..............................................................................30

1


1. Introduction to GPS Validation Networks

Background

The Global Positioning System (GPS) has dramatically reshaped surveying and

navigation in many parts of the world. The use of GPS positioning has become

increasingly widespread. The need for a “truth” against which to test GPS positioning

accuracy and precision has led to the establishment of GPS validation networks across

Canada, also known as basenets, to serve as a physical standard for evaluating GPS

equipment, software and positioning methodologies.

The first GPS validation network was established in the Ottawa region in 1988.

Since that time other such networks have been established across the country, in

collaboration with provincial geodetic surveying agencies. The map on the following page

shows the locations of other GPS validation networks in Canada.

Responsibility for the Edmonton GPS Validation network, first established in

1989, is shared between the Geodetic Survey Division (GSD), Natural Resources Canada

(NRCan) and the Resource Data Division (RDD), Alberta Environmental Protection.

RDD is responsible for site maintenance and dissemination of basenet related information

such as data, whereas GSD, NRCan is responsible for establishing the validation

coordinates for the network through precise GPS measurements. Each GPS validation

network is established using at least two separate measurement campaigns in different

years. Subsequent measurements may be performed periodically to check on pier

movement.

Applications

GPS validation networks are mainly used to evaluate results obtained using a

specific combination of GPS equipment, software, and observation procedures. The full

range of GPS equipment, from hand-held C/A code receivers to geodetic quality dual

frequency receivers, may be checked. Similarly, the accuracies obtainable from different

observation procedures such as single point positioning, differential code, kinematic or

static positioning techniques may be assessed.

2


3


The validation networks may also be used to evaluate proposals from GPS survey

contractors. A "validation survey" on a GPS basenet may be required to assess the

proposed GPS positioning system, and determine with confidence whether it can meet

contract accuracy requirements. A positioning system in this context includes the

equipment and procedures used for data collection as well as the software and procedures

used for the data processing and adjustment.

Characteristics

A GPS validation network is typically comprised of between 5 and 10 forced

centering pillars or piers. Usually two of these pillars are also part of an Electronic

Distance Measurement (EDM) calibration baseline and form the core of the network. The

network design provides GPS baselines of varying lengths, usually ranging between 1 and

100 kilometres, and the design and location of pillars is such that:

• forced centering is used to eliminate centering error ;

• sites are easily accessible;

• sites are generally clear of obstructions above 10 degrees from the horizon;

and

• for stability and longevity, pillar monumentation is carried out using the same

specifications as for EDM calibration baseline pillars. (See Appendix D.)

The following section contains a description and map of the Edmonton GPS validation

network, and a brief explanation of the determination of coordinates listed in this

document.

4


2. The Edmonton GPS Validation Network

Description

The Edmonton GPS validation network was constructed in 1989 by Alberta

Environmental Protection (formerly the Alberta Bureau of Surveying and Mapping). The

basenet consists of ten forced centering pillars surrounding the greater Edmonton region.

Five of these pillars, National Geodetic Data Base (NGDB) numbered stations 77X251,

89X003, 89X004, 89X005, and 89X006, are also Canadian Base Network (CBN)

stations. Three of the pillars, 77X251, 89X011, and 78X000, are coincident with the

Edmonton EDM calibration baseline. A cross reference list for corresponding Alberta

Survey Control Marker (ASCM) numbers is provided in Appendices A and B.

The inner six pillars of the basenet allow for shorter baselines ranging between 450

metres and 13 kilometres. When a GPS validation on longer baselines is required, the

outer four pillars (which can accommodate distances of up to 150 kilometres) may be used.

There is one such pillar located in the vicinity of each of the towns of Seba Beach,

Mundare, Egremont and Ponoka. The map that follows shows the location and basic

configuration of the network.

The Edmonton basenet was first observed with GPS in 1989 by GSD, NRCan,

with subsequent measurements carried out in 1990, 1991 and 1993. All of the

observational data was collected by GSD. The various types of receivers used to collect

the observations are listed in the table in the next section.

In addition to the three-dimensional positions established with GPS, all of the

Edmonton basenet pillars have orthometric heights established through first order levelling.

Descriptions and site sketches for each of the pillars, as well as a notice to users of this

network, are provided in Appendix A.

Determination of Basenet Validation Values

Coordinate values for the Edmonton GPS validation network were determined

using data from four complete sets of observations carried out in 1989, 1990, 1991, and

1993, as shown in the table that follows. For each epoch, or year, the GPS data was

processed by GSD in Ottawa, using Bernese GPS processing software in session mode.

Tofield

Mundare

Smoky LakeEgremont

Redwater

Fort Saskatchewan

Camrose

Bashaw

Leduc

Sherwood Park

Edmonton

Wetaskiwin

Ponoka

Lacombe

Spruce Grove

Stony Plain

Drayton Valley

Evansburg

Gainford

89X002

89X001

89X003

89X006

89X005

89X004

GPS Basenet Station

Municipality

The Edmonton GPS Validation Network

28

28A

28

16

28

14

1421

212A

2

53

2A

21

2

16

2

77X25178X000

89X011

90X006Edmonton

Enlargement

EDMONTON AREA

16

28 NGDB Number ASCM Number

77X251 20859578X000 26595989X001 32042489X002 49274489X003 38845489X004 42178489X005 10779789X006 48340489X011 22737190X006 814343

* NGDB: National Geodetic Data Base**ASCM: Alberta Survey Control Marker

Note: Points on this map have been identified by their NGDB* station number. Corresponding ASCM** station numbers are provided below:

0 10 20 30 kilometres

5


The validation coordinates appearing in this document were produced by

combining all sessions from the four measurement epochs together in a minimally

constrained three-dimensional least squares adjustment. Station 77X251 was constrained

(using the CBN covariance matrix as weights) to its NAD83 Canadian Spatial Reference

System (CSRS) coordinates [from 1996 adjustment of Canadian Base Network (CBN)

data]. In tests carried out, to check for pier movement and statistical compatibility

between the epochs, there was no indication of significant pier movement or distortion.

Measurement History - Edmonton GPS Validation Network

Year Receiver Type Number ofReceivers

SessionLength(hours)

Number ofSessions

GPS ProcessingSoftware

1989 TI-4100 4 4 10 Bernese v3.2

1990 Ashtech LD-XII 5 4.5 8 Bernese v3.2

1991 Ashtech M-XII 6 4.5 3 Bernese v3.3

1993Turbo Rogue

SNR-8000Ashtech P-12

6

6

4.5

4.5

4

4 Bernese v3.4

All coordinate values and error estimates can be found in Appendix B. The

ellipsoidal, geocentric Cartesian, and mapping plane coordinates for network piers are

given in Tables 1, 2 and 3, respectively. The Cartesian coordinate differences between

each of the pillars can be found in Table 4. Absolute 95% confidence regions are provided

in Tables 5, 6, and 7, while relative 95% confidence regions are provided in Tables 8, 9,

and 10. Note that corresponding covariance data is also available as described in

Appendix C.

Separate confidence regions are given for the three-dimensional (3-D), horizontal

(2-D) and vertical (1-D) coordinates. This is necessary because the expansion factors

used to compute the 95% confidence regions are different for each case.

The coordinates given in this document are to be used for validation purposesonly, and differ from provincial adopted values. If needed, adopted NAD83 survey

control values are available from Client Services Branch, Resource Data Division (RDD),

Alberta Environmental Protection (see Appendix C).

The descriptions, sketches and coordinate values provided in this booklet are

intended to provide all the basic information needed to use the Edmonton GPS validation

network as a physical standard for testing and validating GPS positioning systems to suit

specific applications. Details on obtaining further information, data or documents are

given in Appendix C.

6


Appendix A

Station Descriptions and Site Sketches

ASCM Number NGDB Number Station Name

107797 89X005 Pier E

208595 77X251 937+56.18, Pier 18

227371 89X011 937+56.17, Pier 17

265959 78X000 937+56.14, Pier 14

320424 89X001 Pier A

388454 89X003 Pier C

421784 89X004 Pier D

483404 89X006 Pier F

492744 89X002 Pier B

814343 90X006 Pier G

Notice to Users

• The Edmonton GPS validation network is located on public property. Any damage to private or public property which may occur during the use of the network is the responsibility of the user.

• Users must obey normal traffic safety laws.

• The network was installed with the cooperation of local residents, and common courtesy should be observed during occupations.

• Users are also asked to assist in the preservation of the network pillars.

• Users may reserve the basenet, for validation purposes only, by contacting the Resource Data Division.

• Please report any damage or potential dangers to:

Resource Data DivisionAlberta Environmental Protection15th Floor, Oxbridge Place9820 - 106 StreetEdmonton, AlbertaT5K 2J6

Phone: (403) 427-3138Fax: (403) 427-1493

7


ED M ON TON G P S VA LID ATION N ETWO RK

STATION NAME: Pier EASCM NUMBER: 107797 (NGDB 89X005)

N

Not to scale

over pass Hwy 16 West

open fields

x x x x x

ditch

Pier E

0.4 km1.2 kmgra vel road

open fields

power line (approx. 60 m S of sta .)

[pillar is 1.2 m S of f enceand 8.5 m N of roa d C /L ]

Hwy 759 to Se ba Beach

fence line

• • • • •

From the intersection of Highways 16 and 759 near Seba Beach, drivenorth 1.6 km, then easterly on a gravel road 1.2 km to the pillar on thenorth side road allowance; 403 m west of the east boundary of section30-53-5-5. Pillar is in the ditch, 8.5 m north of centre line of gravel roadand 1.2 m south of fence line.

ACC ES S :

DE S CRIPT IO N: Pillar monument. Orange-painted steel cylinder , 36 cm diameter and1.4 m high, concrete-filled with stainless steel forced-centering plate ontop. Established by Alberta Environmental Protection. Tablet marked 107797.

O WNE R: Road allowance

SE 30-53 -5 -5

NE 19 -53-5-5

Station 1 07797 P ie r E (N GD B 89X0 05)

APPROXIMATE CO ORDINATESLAT:LON:ELEV:

53Þ 35' 58"114Þ 43' 14"792 m

8


ED M ON TON G PS VA LID ATION N ETWO RK

STATION NAME: 937 + 56.18ASCM NUMBER: 208595 (NGDB 77X251)


53Þ 34 ' 14"113Þ 10 ' 26"706 m

N

Not to scale

Esso

Pier 18

s erv ice road

Hw y 16 W est

Hw y 16 Eas t

3.2 km to Highway 21

•

Pillar is beside a paved service road on north side of Highway 16,opposite an Imperial Oil service centre on the south side, about 4.7 kmeast of junction of Highways 16 and 21; about 1.5 km east of inter-section of service road with Range Road 224; and 70 m west of RangeRoad 223. Pillar is 1 1 m north of centre line of service road, and 9 msouth of fence line; in the SE 1/4 of section 16-53-22-4.

ACC ESS :

DE SCRIPT ION: Pillar monument. Orange-painted steel cylinder , 25 cm diameter and1.4 m high, concrete-filled with stainless steel forced-centering plate ontop. Established by Alberta Environmental Protection. This is Pier 18 of theEdmonton EDM Calibration Baseline. Tablet marked 937 + 56.18.

OWNE R: Road allowance

s erv ice road

Sta tion 2 085 95 937 + 56 .1 8 (N GD B 77X 251 )

••• •

Pier 14

x x

9




N

Not to scale

ser vice road

paved road C/L

Edm ontonC alibration Base line Pier

17

x x x x x xx

Highway 16 East

Highway 16 West

DE S CRIPT IO N: Pillar monument. Orange-painted steel cylinder , 25 cm diameter and1.4 m high, concrete-filled with stainless steel forced-centering plateon top. Established by Alberta Environmental Protection. This pier isalso part of the Edmonton EDM Calibration Baseline. Tablet marked937 + 56.17.

Pillar is beside a paved service road on north side of Highway 16, about4.2 km east of junction of Highways 16 and 21, and 1.0 km east of inter-section of service road with Range Road 224. Pillar is 14 m north ofcentre line of service road, 13.5 m west of centre line of private laneway ,and 5.65 m south of fence line; just south of the south boundary of thesoutheast 1/4 of section 16-53-22-4.

ACC ES S :


Station 227 371 9 37 + 56 .17 (N GD B 89X0 11 )

•Pier 14 Pier 18

•


53Þ 34 ' 14"113Þ 10 ' 57"691 m

10




N

Not to scale

paved service road

x x x x x x x x x x

Highway 16 east

trees

small tree

Pier 14 • Pier 18

C

1 9.6 m1 00 m

Ed mon to n Calibrat io n Bas eline

Highwa y 16 west

servic e road

Es s oStation

x

x

x

OWNE R: Road allowance

In SW1/4-16-53-22-4. Pillar is beside a paved service road on northside of Highway 16, about 3.3 km east of junction of Highways 16 and21, and 100 m east of intersection of service road with Range Road224. Pillar is 19.6 m north of centre line of service road, and 0.7 msouth of fence line.

ACC ESS :

DE SCRIPT ION: Pillar monument. Orange-painted steel cylinder , 25 cm diameter and 1.4 mhigh, concrete-filled with stainless steel forced-centering plate on top.Established by Alberta Environmental Protection. This is Pier 14 of theEdmonton EDM Calibration Baseline. Tablet marked 937 + 56.14.

Station 2659 59 9 37 + 56 .1 4 (N GD B 7 8X00 0)


53Þ 34' 14"113Þ 11' 45"692 m

11


E D M ON TON G PS VA LID ATION N ETWO RK

STATION NAME: Pier AASCM NUMBER: 320424 (NGDB 89X001)

N

Not to scale

Hwy 16 West

Hwy 16 E ast

x xxx

weighscale bldg

asp hal tp ark in g area

Alb ertaTrans po rtat io nTruck In sp ectionStation

x1.7 m

Pier A

to scales

section road

fence line

AG T Ped estal(A 1 2/10 )

NW 9-53-21-4

DE SCRIPT IO N: Pillar monument. Orange-painted steel cylinder , 36 cm diameter and1.4 m high, concrete-filled with stainless steel forced-centering plateon top. Established by Alberta Environmental Protection.Tablet marked 320424.

Pillar is just east of Alberta Transporation weigh scale building alongeastbound lane of Highway No. 16, in the northwest 1/4 of section9-53-21-W4, situated 13.3 km east of junction with Highway No. 21.Monument is about 80 m south of centre line of eastbound lane ofhighway, 1.7 m north of fence line, and 3.8 m northeast of an AlbertaGovernment Telephone pedestal.

ACC ESS :

O WNE R: Alberta Department of T ransportation

Station 320 424 P ier A (N GD B 8 9X0 01)


53Þ 34' 08"113Þ 02' 48"737 m

12



STATION NAME: Pier CASCM NUMBER: 388454 (NGDB 89X003)

N

Not to scale



Hwy 16 west

trees

cultivatedfie ld

0.5 km

R/A

From the intersection of Highways 16 and 834, drive east 16.0 km onHighway 16, then south 0.5 km on a gravel road. (This same gravelroad can be reached from the intersection of Highways 16 and 855,south of Mundare, by driving west 4.8 km on Highway 16.) The pillar ison the east side road allowance, 8 m from the centre line of the gravelroad and on the north edge of a driveway into a cultivated field. On eastside of road allowance along the east boundary of Sec 10-53-17-4.

ACC ESS :

Hwy 16 east

NE 10-53-17-4NW 11-53-17-4

d rivew ay in to fieldPier C

Station 388 454 P ier C (N GD B 89X 003 )


53Þ 33 ' 54"112Þ 24 ' 36"689 m

13



STATION NAME: Pier DASCM NUMBER: 421784 (NGDB 89X004)

N

Not to scale



fie ld

E 26-58-22-4

sm al l sh ed

o o o o oh yd ro l in e

Pier DHwy827

x x x x xx

x

x

2.0 kmdirt road

fie ld

NE 23-58-22-4

driveway

• •

NW 24-58-22-4

From the intersection of Highways 28 and 827, drive north 1.9 km onHighway 827 to the village of Egremont, then west 2.0 km on a dirtroad to the pillar on the south side road allowance; 50 cm north of thenorth boundary of section 23-58-22-4. Pillar is 6.3 m south of thecentre line of dirt road; 5.7 m north of a fence line; 16.6 m west ofcentre line of an approach to cultivated field; and about 32 m south-east of a small shed located on north side of road. 50 cm

ACC ESS :

Station 421 784 P ier D (N GD B 89X 004 )


54Þ 02 ' 09"113Þ 09 ' 19"638 m

14



STATION NAME: Pier FASCM NUMBER: 483404 (NGDB 89X006)

N

Not to scale

Highwa y 53

+AskerLuther anchur ch

•

•

x

x

x x

x x x

2.6 km

NE 10 -43-23 -4

NW 11-43 -23-4Pier F

DE S CRIPT IO N: Pillar monument. Orange-painted steel cylinder , 36 cm diameter and1.5 m high, concrete-filled with stainless steel forced-centering plateon top. Established by Alberta Environmental Protection.Tablet marked 483404.

From the intersection of Highways 2A and 53 in Ponoka, drive east for24.3 km on Highway 53 to intersection with Asker Road, then north onAsker Road 2.6 km to the pillar on the west side road allowance. Pillaris 1 1.0 m west of centre line of Asker Road and 2.1 m east of fenceline; 156.0 m north of the east 1/4 of section 10-43-3-4.

ACC ES S :


Station 4 83404 P ie r F (NG DB 89 X006 )


52Þ 41 ' 31"113Þ 14 ' 43"784 m

15



STATION NAME: Pier BASCM NUMBER: 492744 (NGDB 89X002)


53Þ 39 ' 27"113Þ 11 ' 36"641 m

Not to scale

From the intersection of Highways 16 and 21, drive north on Highway 21.Go east for 3.4 km on a paved road to the pillar on south side of roadallowance. Pillar is 8.3 m south of centre line of road; 262.5 m east ofnortheast corner of section 8-54-22-4; and 162.3 m west of centre lineof driveway into field on north side of road.

ACC ES S :

DE S CRIPT IO N: Pillar monument. Orange-painted steel cylinder , 36 cm diameter and1.4 m high, concrete-filled with stainless steel forced centering plateon top. Established by Alberta Environmental Protection.Tablet marked 492744.


Station 4 92744 P ie r B (N GD B 89 X002 )

N

farm

fie ld

225 m 162.3 m

NE co r 8-5 4-2 2-4 d itch

field

Partridg e H il l Ro ad

o verpass

Hig hway 1 6

Pier B

16


ED M ON TON G PS VA LID ATION N ETW O RK

STATION N AME: Pier GASCM N UMBER : 814343 (NGDB 90X006)

N

Not to scale

cultivated field

fa rm bldg.

1.0m

Pier GC/L

9.0 m~

Hwy 16 West

Hwy 16 E ast

pasture

DE S CRIPT IO N: Pillar monument. Orange-painted steel cylinder , 36 cm diameter and1.4 m high, concrete-filled with stainless steel forced-centering plateon top. Established by Alberta Environmental Protection.Tablet marked 814343.

From the intersection of Highways 16 and 21, drive east 3.2 km onHighway 16 to Range Road 224, then south 1.0 km on the Range Roadto the pillar on the west side road allowance. Pillar is in the ditch, 9.0 mwest of the centre line of the road and 1.0 m east of a 2-metre longretaining wall (section 8-53-22-4).

ACC ES S :


Sta tion 8 14343 P ie r G (NG DB 9 0X006 )

APPR OXIMATE CO ORDINATESLAT:LON :ELEV:

53Þ 33 ' 40 "113Þ 11 ' 50 "692 m

17


Appendix B

Tables of Values

(Edmonton GPS Validation Network - 1989, 1990, 1991 and 1993 epochs combined)

Warning to Users: These coordinates are to be used for validations only, and are not tobe considered adopted NAD83 survey control values. Control coordinates may beobtained from Client Services Branch as described in Appendix C. Note that station 77X251was constrained to its NAD83(CSRS) value in the adjustment that produced these coordinates.

Station Number Cross Reference List

ASCM Number NGDB Number Station Name

107797 89X005 Pier E

208595 77X251 937+56.18, Pier 18

227371 89X011 937+56.17, Pier 17

265959 78X000 937+56.14, Pier 14

320424 89X001 Pier A

388454 89X003 Pier C

421784 89X004 Pier D

483404 89X006 Pier F

492744 89X002 Pier B

814343 90X006 Pier G

Table 1: Ellipsoidal Coordinates

NGDB # LatitudeNorth

(d m s)

LongitudeWest

(d m s)

EllipsoidalHeight

(m)

77X251 53 34 14.38847 113 10 25.62501 685.18378X000 53 34 14.44406 113 11 44.82331 670.67889X001 53 34 07.75024 113 02 48.32229 715.75389X002 53 39 27.23285 113 11 35.57797 620.19389X003 53 33 53.95491 112 24 35.80654 667.16689X004 54 02 09.94945 113 09 19.19045 617.08089X005 53 35 57.65114 114 43 13.66897 773.57489X006 52 41 30.65204 113 14 43.01602 764.28489X011 53 34 14.41298 113 10 57.28494 669.88390X006 53 33 40.21672 113 11 50.12711 670.870

18


Table 2: Geocentric Cartesian Coordinates

NGDB # X (m) Y (m) Z (m)

77X251 -1493876.094 -3489883.128 5109062.882

78X000 -1495212.037 -3489300.088 5109052.232

89X001 -1486206.884 -3493355.235 5108965.593

89X002 -1491977.582 -3482183.117 5114748.728

89X003 -1447409.063 -3509948.052 5108673.187

89X004 -1476295.723 -3451885.950 5139603.866

89X005 -1586475.966 -3446003.637 5111029.369

89X006 -1529131.808 -3559958.866 5050440.288

89X011 -1494407.928 -3489644.877 5109051.022

90X006 -1495637.179 -3490044.337 5108423.878

Table 3: UTM Mapping Plane Coordinates

NGDB # Northing (m) Easting (m) Zone

77X251 5937952.631 356057.428 12

78X000 5937999.058 354600.936 12

89X001 5937498.178 364461.955 12

89X002 5947658.048 355068.927 12

89X003 5936048.170 406620.574 12

89X004 5989687.068 358851.620 12

89X005 5941362.106 650841.918 11

89X006 5840357.403 348257.932 12

89X011 5937971.207 355475.189 12

90X006 5936944.554 354470.750 12

Warning to Users: Distances derived from UTM coordinates are distorted. Theycannot be compared to spatial distances derived from Cartesian or ellipsoidalcoordinates without applying appropriate scale factors. UTM coordinates anddistances should only be compared to other UTM coordinates and distances. Formore information, please contact either of the agencies referred to in Appendix C.

19


Table 4: Interstation Cartesian Coordinate Differences

FromNGDB #

ToNGDB #

∆ ∆ X (m) ∆ ∆ Y (m) ∆ ∆ Z (m) Spatial Distance(m)

77X251 78X000 -1335.943 583.041 -10.650 1457.66777X251 89X001 7669.211 -3472.106 -97.289 8419.13277X251 89X002 1898.512 7700.011 5685.846 9758.24677X251 89X003 46467.031 -20064.923 -389.696 50615.59077X251 89X004 17580.371 37997.178 30540.983 51822.83977X251 89X005 -92599.872 43879.492 1966.486 102489.08877X251 89X006 -35255.714 -70075.738 -58622.595 97929.48077X251 89X011 -531.834 238.251 -11.860 582.88277X251 90X006 -1761.085 -161.208 -639.004 1880.355

78X000 89X001 9005.153 -4055.147 -86.640 9876.46278X000 89X002 3234.455 7116.971 5696.495 9672.79878X000 89X003 47802.974 -20647.964 -379.046 52073.08778X000 89X004 18916.314 37414.138 30551.633 51875.30278X000 89X005 -91263.929 43296.451 1977.136 101032.65178X000 89X006 -33919.771 -70658.778 -58611.945 97870.18978X000 89X011 804.109 -344.789 -1.210 874.91378X000 90X006 -425.142 -744.249 -628.354 1062.770

89X001 89X002 -5770.698 11172.117 5783.135 13840.58689X001 89X003 38797.820 -16592.817 -292.406 42198.08089X001 89X004 9911.161 41469.284 30638.273 52503.68089X001 89X005 -100269.083 47351.598 2063.776 110906.81689X001 89X006 -42924.925 -66603.631 -58525.305 98507.88989X001 89X011 -8201.044 3710.358 85.429 9001.73289X001 90X006 -9430.295 3310.898 -541.714 10009.294

89X002 89X003 44568.519 -27764.934 -6075.541 52859.78389X002 89X004 15681.859 30297.167 24855.138 42209.20489X002 89X005 -94498.384 36179.481 -3719.359 101255.78089X002 89X006 -37154.226 -77775.749 -64308.440 107541.05889X002 89X011 -2430.346 -7461.760 -5697.706 9697.85089X002 90X006 -3659.597 -7861.219 -6324.849 10732.900

89X003 89X004 -28886.660 58062.101 30930.679 71849.52189X003 89X005 -139066.903 63944.415 2356.182 153081.81989X003 89X006 -81722.745 -50010.814 -58232.899 112119.39789X003 89X011 -46998.865 20303.175 377.835 51198.19389X003 90X006 -48228.116 19903.715 -249.308 52174.430

continued on next page...

20


Table 4 (continued)

FromNGDB #

ToNGDB #

∆ ∆ X (m) ∆ ∆ Y (m) ∆ ∆ Z (m) Spatial Distance(m)

89X004 89X005 -110180.243 5882.314 -28574.497 113977.14489X004 89X006 -52836.085 -108072.916 -89163.578 149738.27489X004 89X011 -18112.205 -37758.927 -30552.844 51838.83589X004 90X006 -19341.456 -38158.386 -31179.987 52937.189

89X005 89X006 57344.158 -113955.229 -60589.081 141227.41889X005 89X011 92068.038 -43641.240 -1978.347 101906.79789X005 90X006 90838.787 -44040.700 -2605.490 100985.430

89X006 89X011 34723.880 70313.989 58610.734 97903.13189X006 90X006 33494.629 69914.529 57983.591 96809.237

89X011 90X006 -1229.251 -399.460 -627.144 1436.640

21


Table 5: Absolute 95% 3-D Confidence Ellipsoids

NGDB # Major Semi-axis

MediumSemi-axis

MinorSemi-axis

length(m)

az.(deg)

inc.(deg)

length(m)

az.(deg)

inc.(deg)

length(m)

az.(deg)

inc.(deg)

77X251 0.02 92 86 0.02 1 0 0.02 91 -4

78X000 0.03 95 88 0.02 357 0 0.02 87 -2

89X001 0.03 113 88 0.02 356 1 0.02 86 -2

89X002 0.03 107 87 0.02 359 1 0.02 89 -3

89X003 0.03 96 87 0.02 0 0 0.02 90 -3

89X004 0.03 104 86 0.02 359 1 0.02 89 -4

89X005 0.03 96 85 0.02 358 1 0.02 88 -5

89X006 0.03 81 86 0.02 0 1 0.02 90 -4

89X011 0.03 95 88 0.02 356 0 0.02 86 -2

90X006 0.03 91 88 0.02 356 0 0.02 86 -2

Table 6: Absolute 95%Horizontal Confidence Ellipses

Table 7: Absolute 95%Vertical Confidence Intervals

NGDB # MajorSemi-axis

MinorSemi-axis

NGDB # +/-

length(m)

az.(deg)

length(m)

az.(deg)

length(m)

77X251 0.02 1 0.02 91 77X251 0.02

78X000 0.02 356 0.02 86 78X000 0.02

89X001 0.02 355 0.02 85 89X001 0.02

89X002 0.02 358 0.02 88 89X002 0.02

89X003 0.02 359 0.02 89 89X003 0.02

89X004 0.02 357 0.02 87 89X004 0.02

89X005 0.02 355 0.02 85 89X005 0.02

89X006 0.02 1 0.02 91 89X006 0.02

89X011 0.02 356 0.02 86 89X011 0.02

90X006 0.02 356 0.02 86 90X006 0.02

Note: the semi-axes of the absolute confidence regions are shown to the nearest centimetre (rather thanmillimetre), because absolute accuracy with respect to the reference system NAD83 (CSRS) is known only atthe centimetre level.

22


Table 8: Relative 95% 3-D Confidence Ellipsoids

FromNGDB #

ToNGDB #

MajorSemi-axis

MediumSemi-axis

MinorSemi-axis

length(m)

az.(deg)

inc.(deg)

length(m)

az.(deg)

inc.(deg)

length(m)

az.(deg)

inc.(deg)

77X251 78X000 0.012 251 89 0.003 346 0 0.002 76 177X251 89X001 0.015 180 88 0.005 351 1 0.005 81 077X251 89X002 0.014 159 88 0.005 357 1 0.004 87 077X251 89X003 0.012 101 87 0.004 357 1 0.003 87 -377X251 89X004 0.012 115 87 0.004 357 1 0.003 86 -377X251 89X005 0.013 104 86 0.004 354 1 0.003 84 -477X251 89X006 0.014 82 87 0.004 359 0 0.003 89 -377X251 89X011 0.015 263 89 0.003 345 0 0.002 75 177X251 90X006 0.014 282 89 0.003 346 0 0.002 76 1

78X000 89X001 0.016 198 89 0.005 349 1 0.005 79 178X000 89X002 0.015 178 89 0.005 355 1 0.004 85 078X000 89X003 0.014 111 89 0.004 353 1 0.003 83 -178X000 89X004 0.015 123 89 0.004 354 1 0.003 84 -178X000 89X005 0.015 110 88 0.004 350 1 0.004 80 -278X000 89X006 0.016 85 88 0.004 357 0 0.003 87 -278X000 89X011 0.016 270 89 0.003 344 0 0.002 74 178X000 90X006 0.015 276 89 0.003 345 0 0.002 75 1

89X001 89X002 0.017 178 88 0.006 354 2 0.005 84 089X001 89X003 0.017 148 89 0.006 351 1 0.005 81 -189X001 89X004 0.017 149 88 0.006 353 2 0.005 83 -189X001 89X005 0.018 134 88 0.006 351 2 0.005 81 -189X001 89X006 0.019 116 88 0.006 355 1 0.005 85 -189X001 89X011 0.019 211 89 0.005 349 1 0.005 79 189X001 90X006 0.018 208 89 0.005 349 1 0.005 79 1

89X002 89X003 0.016 132 88 0.005 357 1 0.004 87 -189X002 89X004 0.016 136 88 0.005 356 1 0.004 86 -189X002 89X005 0.017 121 88 0.006 356 1 0.004 86 -289X002 89X006 0.017 114 88 0.005 358 1 0.004 88 -289X002 89X011 0.018 194 89 0.005 354 1 0.004 84 089X002 90X006 0.017 188 89 0.005 355 1 0.004 85 0

89X003 89X004 0.012 111 87 0.004 353 2 0.003 83 -389X003 89X005 0.013 108 86 0.004 354 2 0.003 84 -489X003 89X006 0.015 88 87 0.004 0 0 0.003 90 -389X003 89X011 0.017 109 89 0.004 352 0 0.004 82 089X003 90X006 0.016 91 89 0.004 354 0 0.004 84 -1


23


Table 8 (continued)

FromNGDB #

ToNGDB #

MajorSemi-axis

MediumSemi-axis

MinorSemi-axis

length(m)

az.(deg)

inc.(deg)

length(m)

az.(deg)

inc.(deg)

length(m)

az.(deg)

inc.(deg)

89X004 89X005 0.013 105 86 0.004 359 1 0.003 89 -489X004 89X006 0.015 92 87 0.004 357 0 0.003 87 -389X004 89X011 0.017 126 89 0.005 353 1 0.004 83 -189X004 90X006 0.016 111 89 0.005 354 0 0.004 84 -1

89X005 89X006 0.016 93 86 0.004 349 1 0.003 78 -489X005 89X011 0.018 109 89 0.005 349 1 0.004 79 -189X005 90X006 0.017 103 88 0.005 349 1 0.004 79 -2

89X006 89X011 0.019 79 89 0.004 355 0 0.003 85 -189X006 90X006 0.017 75 89 0.004 356 0 0.003 86 -1

89X011 90X006 0.017 278 89 0.003 344 0 0.003 74 1

24


Table 9: Relative 95%Horizontal Confidence Ellipses

Table 10: Relative 95%Vertical Confidence Intervals

FromNGDB #

To NGDB#

MajorSemi-axis

MinorSemi-axis

FromNGDB #

ToNGDB #

+/-

length(m)

az.(deg)

length(m)

az.(deg)

length(m)

77X251 78X000 0.002 346 0.002 76 77X251 78X000 0.00877X251 89X001 0.005 351 0.004 81 77X251 89X001 0.01177X251 89X002 0.004 356 0.003 86 77X251 89X002 0.01077X251 89X003 0.003 356 0.003 86 77X251 89X003 0.00877X251 89X004 0.004 355 0.003 85 77X251 89X004 0.00977X251 89X005 0.003 351 0.003 81 77X251 89X005 0.00977X251 89X006 0.003 359 0.002 89 77X251 89X006 0.01077X251 89X011 0.002 345 0.002 75 77X251 89X011 0.01077X251 90X006 0.003 345 0.002 75 77X251 90X006 0.010

78X000 89X001 0.005 349 0.004 79 78X000 89X001 0.01278X000 89X002 0.004 355 0.003 85 78X000 89X002 0.01178X000 89X003 0.004 353 0.003 83 78X000 89X003 0.01078X000 89X004 0.004 353 0.003 83 78X000 89X004 0.01078X000 89X005 0.004 349 0.003 79 78X000 89X005 0.01178X000 89X006 0.004 357 0.003 87 78X000 89X006 0.01178X000 89X011 0.003 344 0.002 74 78X000 89X011 0.01178X000 90X006 0.003 344 0.002 74 78X000 90X006 0.010

89X001 89X002 0.006 354 0.005 84 89X001 89X002 0.01289X001 89X003 0.005 351 0.004 81 89X001 89X003 0.01289X001 89X004 0.005 352 0.004 82 89X001 89X004 0.01289X001 89X005 0.005 350 0.005 80 89X001 89X005 0.01289X001 89X006 0.005 355 0.004 85 89X001 89X006 0.01389X001 89X011 0.005 350 0.004 80 89X001 89X011 0.01389X001 90X006 0.005 350 0.004 80 89X001 90X006 0.013

89X002 89X003 0.005 356 0.004 86 89X002 89X003 0.01189X002 89X004 0.005 355 0.004 85 89X002 89X004 0.01189X002 89X005 0.005 355 0.004 85 89X002 89X005 0.01289X002 89X006 0.005 358 0.004 88 89X002 89X006 0.01289X002 89X011 0.005 354 0.004 84 89X002 89X011 0.01389X002 90X006 0.005 355 0.004 85 89X002 90X006 0.012


25


Table 9 (continued) Table 10 (continued)

FromNGDB #

To NGDB#

MajorSemi-axis

MinorSemi-axis

FromNGDB #

ToNGDB #

+/-

length(m)

az.(deg)

length(m)

az.(deg)

length(m)

89X003 89X004 0.004 352 0.003 82 89X003 89X004 0.00989X003 89X005 0.004 350 0.003 80 89X003 89X005 0.00989X003 89X006 0.003 1 0.003 91 89X003 89X006 0.01089X003 89X011 0.004 352 0.003 82 89X003 89X011 0.01289X003 90X006 0.004 354 0.003 84 89X003 90X006 0.011

89X004 89X005 0.004 357 0.003 87 89X004 89X005 0.00989X004 89X006 0.004 357 0.003 87 89X004 89X006 0.01189X004 89X011 0.004 353 0.003 83 89X004 89X011 0.01289X004 90X006 0.004 353 0.003 83 89X004 90X006 0.011

89X005 89X006 0.004 346 0.003 76 89X005 89X006 0.01189X005 89X011 0.004 348 0.003 78 89X005 89X011 0.01389X005 90X006 0.004 349 0.003 79 89X005 90X006 0.012

89X006 89X011 0.004 355 0.003 85 89X006 89X011 0.01389X006 90X006 0.004 356 0.003 86 89X006 90X006 0.012

89X011 90X006 0.003 343 0.002 73 89X011 90X006 0.012

26


Appendix C

Contacts for Additional Information

The following information is available in various formats and media, including digital:

• Adopted NAD83 coordinate values for all basenet pillars

• Official validation coordinates for all basenet pillars as shown in this document (i.e., ellipsoidal geographic, Transverse Mercator or Cartesian)

• Coordinates and associated covariance data for basenet pillars

Contact:

Client Services BranchResource Data DivisionAlberta Environmental Protection12th Floor, Oxbridge Place9820-106 StreetEdmonton, AlbertaT5K 2J6

Tel: (403) 427-7374Fax: (403) 422-0973Email: [email protected]

For more information on the Edmonton EDM calibration baseline, please contact theaddress above.

For more information on the Edmonton GPS validation network analysis and coordinatevalue determination, contact:

Client Services SectionGeodetic Survey DivisionGeomatics CanadaNatural Resources Canada615 Booth StreetOttawa, OntarioK1A 0E9

Tel. (613) 995-4410 or 992-2061Fax. (613) 995-3215Email: [email protected]

27


Appendix D

Alberta Environmental ProtectionResource Data Division

Pillar DesignEdmonton GPS Validation Network Forced Centering Pillars

D.1 Pillar Construction

Each basenet pillar consists of a 356 mm diameter by 12 metre driven pipe filled withconcrete. A stainless steel forced centering (5.8” NC) plate is affixed to the top of thepillar and an identification plaque is affixed to the side of the pillar. A concrete observingslab is poured around the pillar for ease of occupying the station.

D.2 Cross Section

BEDROCK BEDROCK

SOIL SOIL

1 -

1.5

M

1 -

3.5

M

0 -

2 M

40 - 50 CM D

2.54 CMREINFORCING RODSEXTENDING INTOBEDROCK

23 CM DIAMETER STAINLESSSTEEL OR BRASS PLATE 2 CMTHICK WITH 5/8 INCH N.C.THREADED PIN

(IF PRESENT)(IF PRESENT)

Note: Diagram not to scale

D-3 Forced Centering Plate

Sel

f C

ente

rin

g P

late

Dep

t. o

f E

ner

gy,

Min

es &

Res

ou

rces

Geo

det

ic S

urv

ey o

f C

anad

aS

urv

eys

and

Map

pin

g B

ran

chS

tain

less

Ste

el o

r B

rass

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