EUREF Regional Densification of ITRF2005

EUREF Regional Densification of ITRF2005

Heinz Habrich

EPN Analysis Coordinator

Federal Agency for Cartography and Geodesy,Frankfurt, Germany

EUREF TWG November 29 - 30, 2007, Paris, France 2

IntroductionIntroduction

Cumulative solution of EPN weekly results to realise aEuropean densification of ITRF2005

Processing now finished and product files onlineavailable

Draft report document distributed among TWG members

EUREF TWG November 29 - 30, 2007, Paris, France 3

EPN Multiyear Solution Strategy

Free Network Solution

Minimum Constrained Solution

A-Priori Sigma Solution

EPN_CUM.PLT

EPN_CU1.CRD

EPN_CU1.VEL

EPN_CUM.OUT

EURwwww7.NQ0

EPN_CU2.OUT

EPN_CUM.CRD

EPN_CUM.VEL

EPN_CU3.OUT

EPN_CU3.CRD

EPN_CU3.VEL

EPN_CUM.SNX

EPN_CUM.NQ0

EPN_CU1.SNX

EUREF TWG November 29 - 30, 2007, Paris, France 4

• ALL_ITRF2005_060920.snx (IGS offsets)• outliers.snx (IGS outliers)• EPN_offsets.snx (EPN SP offsets)• EPN_outliers.snx (EPN outliers)• ITRF2005_GPS.SSC (coordinates and velocities)

EPNC.STAEURF05.CRDEURF05.VEL

Priority Offsets:1. ITRF20052. EPN SP Time Series3. EPN Multiyear Solution

Priority Coordinates/Vel.:1. ITRF2005 (Flag I)2. EPN Weekly (Flag E)

Priority Outlier Definition:1. EPN Multiyear Solution2. EPN SP Time Series

Many, many ...manual editing

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Contributing NEQ-FilesContributing NEQ-Files

Weekly SINEX files converted to NEQs (mandatory to start with 1 solution per week)

Weeks 860 to 1355 result to 496 contributing files

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Rejection CriteriaRejection Criteria

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Reference Station SelectionReference Station Selection

Initially all ITRF2005 sites of EPN have been considered as references site

Exclusion of stations from reference list after residual screening

Finally 44 stations with 57 solution numbers selected for definition of minimum constraint conditions

EUREF TWG November 29 - 30, 2007, Paris, France 8

Reference SitesReference Sites

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Residuals of Final Reference StationsResiduals of Final Reference StationsFree Network vs. ITRF2005

-15

-10

-5

0

5

10

15

20

TO

UL

1H

OF

N1

HO

FN

2T

RO

12

TR

O1

3N

YA

11

NY

A1

2O

NS

A3

ME

TS

1G

RA

Z1

GR

AZ

2P

EN

C1

PE

NC

2G

OP

E1

GO

PE

5M

ED

I1M

ED

I2C

AG

L1

CA

GL

2C

AG

L3

MA

TE

4U

PA

D2

BR

US

1B

RU

S2

HE

RS

4S

FE

R3

VIL

L3

VIL

L4

KO

SG

1K

OS

G2

WS

RT

1Z

IMM

2P

OT

S1

WT

ZR

3O

BE

R1

GL

SV

1S

JDV

2C

AS

C2

GE

NO

1B

UC

U1

BU

CU

2L

AM

P1

UZ

HL

1T

RA

B1

AN

KR

4P

TB

B1

YE

BE

1T

HU

11

NP

LD

1T

LS

E1

PO

LV

1O

BE

22

PA

DO

1L

RO

C1

SP

T0

1T

HU

31

JOZ

21

[mm

] North

East

Height

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Processing RuntimeProcessing Runtime

09:36 mm:ssFull Constrained solution from combined NEQ:

01:53 mm:ssMinimum constrained solution from combined NEQ:

07:47 mm:ssFree network solution from weekly NEQs:

20:00 mm:ssTotal Time:

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Coordinate Time Series ExampleCoordinate Time Series Example

EUREF TWG November 29 - 30, 2007, Paris, France 12

ZWEN (Figure 9 in Draft Report)ZWEN (Figure 9 in Draft Report)

EUREF TWG November 29 - 30, 2007, Paris, France 13

ZWENZWEN

Converted from ITRF2005_IGS-TRF.SNX (= ITF05.SNX)ITF05.CRD73 ZWEN 12330M001A 2886325.4712 2155998.4337 5245816.1559 I

261 ZWEN 12330M001B 2886325.4761 2155998.4393 5245816.1567 I456 ZWEN 12330M001C 2886325.4729 2155998.4515 5245816.1689 I468 ZWEN 12330M001 2886325.4791 2155998.4420 5245816.1527 I

ITRF2005 GENERATED FROM ITRF2005_GPS.SSC 08-OCT-06 15:00EURF05.CRD135 ZWEN112330M001 2886325.471 2155998.434 5245816.156 I135 ZWEN212330M001 2886325.4766 2155998.4356 5245816.1561 E135 ZWEN312330M001 2886325.476 2155998.439 5245816.157 I135 ZWEN412330M001 2886325.473 2155998.452 5245816.169 I135 ZWEN512330M001 2886325.479 2155998.442 5245816.153 I

CUMULATIVE SOLUTION OF EPN WEEKLY COMBINED SOLUTIONS - MCC 04-OCT-07 05:59EPN_CUM.CRD_fin135 ZWEN112330M001 2886325.4710 2155998.4340 5245816.1560135 ZWEN212330M001 2886325.4766 2155998.4356 5245816.1561135 ZWEN312330M001 2886325.4778 2155998.4372 5245816.1475 A135 ZWEN412330M001 2886325.4182 2155998.1389 5245816.3395 A135 ZWEN512330M001 2886325.5357 2155998.4558 5245816.5186 A

ITF05.VEL73 ZWEN 12330M001A -0.0227 0.0109 0.0049 I

261 ZWEN 12330M001B -0.0227 0.0109 0.0049 I456 ZWEN 12330M001C -0.0227 0.0109 0.0049 I468 ZWEN 12330M001 -0.0227 0.0109 0.0049 I

EURF05.VEL135 ZWEN112330M001 -.0227 0.0109 0.0049 EURA135 ZWEN212330M001 -.0227 0.0109 0.0049 EURA135 ZWEN312330M001 -.0227 0.0109 0.0049 EURA135 ZWEN412330M001 -.0227 0.0109 0.0049 EURA135 ZWEN512330M001 -.0227 0.0109 0.0049 EURA

EPN_CUM.VEL_fin135 ZWEN112330M001 -0.0227 0.0109 0.0049 EURA135 ZWEN212330M001 -0.0227 0.0109 0.0049 EURA135 ZWEN312330M001 -0.0211 0.0111 0.0049 A EURA135 ZWEN412330M001 -0.0089 0.0790 -0.0349 A EURA135 ZWEN512330M001 -0.0338 0.0072 -0.0744 A EURA

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Thank you

Next StepsNext Steps

Product files available at ftp://igs.bkg.bund.de/MISC/ITRF/ITRF2005/

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