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6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis Centre (Centro de Observaciones Geodésicas) Miguel Ángel Cano Villaverde José Antonio Sánchez Sobrino Marcelino Valdés Pérez de Vargas

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Page 1: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany

Instituto Geográfico Nacional (Spain)

1

IGE

Local Analysis Centre

(Centro de Observaciones Geodésicas)

Miguel Ángel Cano VillaverdeJosé Antonio Sánchez Sobrino

Marcelino Valdés Pérez de Vargas

Page 2: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 22 26th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCurrent sub-network processed

49 GNSS stations.21 of them are ERGNSS stations. 15 of them are GPS+GLONASS stations.

Page 3: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 33 36th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vChanges since LAC Workshop Padova 2006From 33 to 49 stations.

New processed stations (17)ERGNSS. (8 new stations)

ZARA (1381 GPS Week).SALA (1401 GPS Week).ALBA (1444 GPS Week).HUEL (1444 GPS Week).LEON (1444 GPS Week).SONS (1444 GPS Week).CEU1 (1470 GPS Week).TERU (1499 GPS Week).

Decommissioned stationERGNSS

CEUT (1415 GPS Week).

EPN. (9 new stations)ROVE (1370 GPS Week).BADH (1374 GPS Week).BELF (1412 GPS Week).IGMI (1412 GPS Week).MOPS (1424 GPS Week).BORR (1450 GPS Week).VALA (1476 GPS Week).FUNC (1487 GPS Week).FLRS (1495 GPS Week).

Proposed stationERGNSS

IZAN à multichannel radiometer

(MFRSR)

Page 4: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 44 46th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vNumber of processed stations per GPSweek

15

20

25

30

35

40

45

50

55

1100 1150 1200 1250 1300 1350 1400 1450 1500 1550

GPS Week

num

ber

of s

tatio

ns

CEUT decommissioned

Page 5: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 55 56th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

v Changes in Spain10 New stations

ZARA (1381 GPS Week).SALA (1401 GPS Week).ALBA (1444 GPS Week).HUEL (1444 GPS Week).LEON (1444 GPS Week).SONS (1444 GPS Week).BORR (1450 GPS Week).CEU1 (1470 GPS Week)VALA (1476 GPS Week).TERU (1499 GPS Week).

Equipment replacement (13)ACOR LEICA GRX1200PROALAC TRIMBLE NETRSALME TRIMBLE NETRSCANT TRIMBLE NETRSEBRE TRIMBLE NETRSLPAL LEICA GRX1200GGMALA LEICA GRX1200GGMAS1 JPS LEGACYRIOJ TRIMBLE NETRSVALE TRIMBLE NETRSVIGO TRIMBLE NETRSVILL ASHTECH UZ-12YEBE TRIMBLE NETRS

6 New GPS+GLONASS (in red)

Red Triangles à New stations

Page 6: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 66 66th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vYEBE station issue

YEBE à Lost of data.Due to:

New 40 m radiotelescopeNew auxiliar building

Actions:New YEB1 station (200 m distance)

Co-located with a new absolute gravimeter

Try to elevate YEBE antenna from marknew ARP Up Eccentricity.

Page 7: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 77 76th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vProcessing changes

Software à Bernese 5.0

Solutions provided:Weekly

with precise ephemeridesà more than 15 daysIGEwwww7.SNX

IGEwwww7.SUM

IGEwwwwd.TRO (7 files)

IGEwwwwd.SNX (7 files) New from 1418 GPSWeek

Daily

with rapid ephemeridesà 1 dayIGEwwwwdR.SNX New from 1418 GPSWeek

Page 8: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 88 86th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vStrategy changes

From 1400 GPSWeekFrom relative to absolute Phase Center models(APC).

New Reference Frame ITRF2005(IGS05).

Horizontal Gradient Troposphere parametersestimation with low elevation data (up to 3º).

Our own ionosphere model to ambiguityestimation.

New ocean loading model FES2004.

Page 9: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 99 96th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vOther IGE Analysis Centre projects

E-GVAPAbout 150 stations.Hourly NRT process.(using coordinates from the PP process)

Objective à ZTDDouble differences.Ultra rapid IGS orbits.Finally à The 12 last hours are combined.

Page 10: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1010 106th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vOther IGE Analysis Centre projects

IBERREDSame stations that EGVAPObjectives à

Positions.PP, coordinates to EGVAP hourly process.Atmosphere models.Time series

Weekly process.Same strategy as EPN LAC

Double differences.Final IGS orbits.

Page 11: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1111 116th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vOther IGE Analysis Centre projects

North-East Atlantic Network

Canary volcanic monitoring system.

6 ERGNSS stations (Canary Islands).

Related with AFREF.

Testing strategies.

Now, as weekly EPN LAC.Double differences.

Final IGS orbits.

Page 12: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1212 126th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vPresent works

Testing GPS+GLONASS processing.Hourly processes with ultra-rapid products (EGVAP)New Hardware platforms.New data flow diagram (Local Data Center)Testing other ambiguity resolution strategies depending on distance.

vFuture plans

Testing PPP processing.Testing orbit determination (NRT projects)

Page 13: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1313 136th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

Thanks!!

Page 14: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1414 146th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

Tenerife Volcanic Monitoring System Project

Planned.3 Tide gauges10 GPS Permanent stations.307 Km of High Precission levellingNetwork.Absolute and relative Gravity Network.6 Tiltmeters.New GPS campaigns.

About 28 points.

Installed.3 Tide gauges4 GPS Permanent stations.307 Km of High Precission levellingNetwork.Gravity Network Monumentated.

Page 15: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1515 156th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

v Overview of processes. (Bernese 5.0 under Linux Suse 9.2, 2 PCs)

1st.-Daily process.Objectiveà Precise and current coordinates.

Double differences.Rapid IGS Orbits.Finally à The 28 last days are combined.Datum: Minimal constraint condition to IGS05 sites.

2nd.-Hourly NRT process. (Hourly)(using coordinates from the PP process)

Objective à ZTDDouble differences.Ultra rapid IGS orbits.Finally à The 6 last hours are combined.

Page 16: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1616 166th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vStations ProcessedTwo months ago, IGE Analysis Centre has begun the collaboration with AEMET , the Spanish Meteorological Institution, in E-GVAP.We have chosen a first network and strategy. Now, we have just get our first COST files.So, the final network and processing strategy is pending of experimentation, refinements and validation.

Page 17: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1717 176th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vStrategy changes

From 1400 GPSWeekFrom relative to absolute Phase Center models(APC)

New Reference Frame ITRF2005(IGS05).

Horizontal Gradient Troposphere parametersestimation with low elevation data. (up to 3º)

Our own ionosphere model to ambiguityestimation.

New ocean loading model FES2004.

Page 18: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1818 186th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCurrent processed Network

Total = 55 stations. All of them from:

IGS or EPN (.)4 of them

Supersites (∆)

6 of themIGS05 Datum (*)

Page 19: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 1919 196th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

v Overview of processes. (Bernese 5.0 under Linux Suse 9.2, 2 PCs)

1st.-Daily process.Objectiveà Precise and current coordinates.

Double differences.Rapid IGS Orbits.Finally à The 28 last days are combined.Datum: Minimal constraint condition to IGS05 sites.

2nd.-Hourly NRT process. (Hourly)(using coordinates from the PP process)

Objective à ZTDDouble differences.Ultra rapid IGS orbits.Finally à The 6 last hours are combined.

Page 20: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2020 206th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

v NRT Processing Strategy (1)

Bernese 5.0 under Linux SUSE 9.2.Double differences.Ultra rapid IGS orbits.Data processing rate: 30 seconds.Last hour + 5 combined for the final solution.NRT start each hh:10NRT finish each hh:16Cut-off angle: 3ºBaseline creation strategy: max-obs.

Page 21: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2121 216th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

v NRT Processing Strategy (2)

Only GPS observations.

Ambiguities float.

ZTD modeled as piece-wise linear function.

estimated every 15 minutes.

Constrains:Absolute: 5.0 m

Relative: 1.0 mm

Page 22: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2222 226th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vNext Steps (1)Network processed: Add more Iberian stations.

Page 23: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2323 236th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vNext Steps (2)

Processing Strategy.Use of GLONASS observations.

Use of network clustering

Use of meteorological data.

Hence, we need more experimentation and learn more about E-GVAP analysis centers experiences..

To validate.

To refine.

Page 24: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2424 246th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCOST file example

Page 25: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany

Instituto Geográfico Nacional (Spain)

25

Estado actual de procesamiento en el

Centro de Análisis Local de EUREF

(IGE)

Marcelino Valdés Pérez de Vargas

Page 26: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2626 266th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCentro Local de Análisis de la EPN

Desde la semana GPS 1130 (Septiembre del 2001).De 18 a 44 estaciones EPN(zona ibérica).Software Bernese 4.2, 5.0.Soluciones:

Semanal (efemérides precisas)latencia > 15 días

IGEwwww7.SNXIGEwwwwd.TRO

Diaria(efemérides rápidas)

latencia < 24 horasIGEwwwwdR.SNX

Page 27: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2727 276th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCombinación de soluciones de los 16 LAC

Cada estación EPN à 3 LAC.

16 SINEX

Solución final combinada.Condición de mínimo constreñimiento de translación a estaciones de referencia IGS.

EURwwww7.SNX

EURwwwwdR.SNXImagen de web EUREF

Page 28: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2828 286th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCambios en semana GPS 1400, (11-2006)

Modelo de Centro de Fase Absoluto (APC)

Nuevo marco de ref. ITRF2005 (IGS05).

Estimación de parámetros de gradiente horizontal de la Troposfera con datos de baja elevación (desde 3º).

Modelo de carga oceánica FES2004.

Page 29: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 2929 296th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

v Centro de fase de la antena(PC)

Distancias medidas entre Centros de Fase de la antena del receptor y del satélite.Constante del PC (PCO) à PC medio desde ARP.PCV, respecto de PCO.dependen de:

Dirección de llegada de la señal.Frecuencia L1, L2.Radomo (antenas receptor).

Calibraciones:Individuales ó genéricasPara antena o par antena/radomo.

Page 30: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3030 306th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCambio de PCV Relativos a PCV Absolutos

Antes semana 1400.PCO relativos àAOAD/M_T.Modelos PCV relativos (RPCV)à modelo IGS_01.

A antena de referencia AOAD/M_T.Receptores à Dependencia en elevación, no en azimut.Satélites à No depende de dirección.

Después semana 1400.PCO absolutos.Modelos PCV absolutos (APCV) à modelo IGSyy_wwww

Calibración con robot.Receptores à Dependencia en elevación y azimut.Satélites à depende del ángulo al nadir.

Consideración de distintos radomos.

Page 31: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3131 316th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vTestà APC - RPCDiferencias entre solución con APC y RPC (sem. 1461)

8,5

11,4

9,1

5,9

9,3

14,9

9,7

24,8

10,1

8,4

21,8

9,3

0

10,9

9,6

8,6

17,1

8,8

16,7

10

10

8,4

DUp(mm)

Rup(mm)

DE(mm)

DN(mm)RadomAntenaEst.

-3,30,82NONETRM41249.00CREU

-0,42,65,5NONETRM41249.00BADH

-2,7-3,80,2TCWDTRM29659.00VIGO

-5,9-0,4-0,3TCWDTRM29659.00VALE

-2,5-1,6-0,5TCWDTRM29659.00SONS

3,11-0,6TCWDTRM29659.00MALL

-2,1-1,8-1,7TCWDTRM29659.00MALA

13,0-8,5-5,2TCWDTRM29659.00LPAL

-1,7-2,2-0,6TCWDTRM29659.00CACE

-3,4-0,8-0,7TCWDTRM29659.00ALBA

10,0-3,6-5,2SCISTRM29659.00RABT

-2,50,80,6NONETRM29659.00ZARA

-11,800NONETRM29659.00YEBE

-0,9-1,2-1,7NONETRM29659.00SFER

-2,2-10NONETRM29659.00SALA

-3,20,21NONETRM29659.00RIOJ

5,351,3NONETRM29659.00PRAT

-3,0-0,91NONETRM29659.00LEON

4,951,3NONETRM29659.00IGMI

-1,8-1,5-1,3NONETRM29659.00HUEL

-1,81,10,1NONETRM29659.00EBRE

-3,4-0,21,7NONETRM29659.00CANT

10,4

10,9

9,9

9,9

15,3

11,1

26,8

9,7

10,3

9,8

11,4

8,1

4,7

8,4

5,8

23,5

16,5

12,6

10,7

14,7

9,5

26,1

DUp(mm)

Rup(mm)

DE(mm)

DN(mm)RadomAntenaEst.

-1,41,1-0,3NONETRM29659.00BORR

-0,90,2-1,3NONETRM29659.00ALME

-1,90,7-0,7NONETRM29659.00ALAC

-1,91,31,1DOMETRM29659.00ESCO

3,50,30,7NONELEIAT504GGMOPS

-0,7-3,13,8NONELEIAT504GGHERT

15,0-9,6-4,5NONELEIAT504PDEL

-2,1-4,4-2,2NONELEIAT504LAGO

-1,5-4,7-0,5NONELEIAT504GAIA

-2,0-4,7-1,7NONELEIAT504CASC

-0,44,74,6LEISLEIAT504ROVE

-3,7-0,68,9LEISLEIAT504DARE

-7,1-1,31,6LEISLEIAT504COBA

-3,4-1,69,1LEISLEIAT504BELF

-6,0-2,73,6LEISLEIAT504ACOR

11,72,51,3NONEJPSREGANT_DDCAGZ

4,73,81,4SCITASH701945C_MZOUF

0,81,91,4NONEASH701945C_MIENG

-1,1-0,72,5NONEASH701945B_MLROC

2,9-1,94,4SNOWASH700936D_MNEWL

-2,3-1,7-0,8NONEAOAD/M_TVILL

14,3-8-6,3NONEAOAD/M_TMAS1

Page 32: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3232 326th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vCambio de ITRF2000 a ITRF2005

Con observaciones VLBI, SLR, Doris, GNSS.

En general, datos 1980-2006.0.(GNSS 1996).

Solución final:posiciones

velocidades

EOPs

Imagen de web ITRF

Page 33: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3333 336th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vIGS05Objetivo à ITRF2005 corregido de RPC a APCProcedimiento (IGS mail 5447):

Determinación de corrección para cada estación IGS por el cambio de RPC a APC.

Cálculo de 2 soluciones simultaneas de 1 año.

Calcular solución IGS acumulativa y corregir con offsetpara cada estación.Alinear a ITRF2005 con transformación 7 parámetros.

Discrepancia con ITRF2005Global = 0Europa = 5 mm aprox. en altura.P. Ibérica= Menor en bajas latitudes

Page 34: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3434 346th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vDiferencia IGS05-ITRF2005 (EPN)

De estaciones ‘core IGS’ en Europa.

En mm ordenados por latitud ascendente.

Diferencia medias

(mm)

• N=-0.2 ± 1.0

• E=-0.4 ± 1.4

• U= 5.3 ± 6.5

Page 35: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3535 356th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vEstimación de parámetros de la TroposferaAntes de 1400.

Estimación de parámetros troposféricos cada hora y estación.Modelo apriori (condiciones estándar) à Dry-Niell.Parámetros de ZPDàWet-Niell.Sigmas a priori abs. y relà 5.0m.Máscara 10º.Ponderación de observaciones en función de la elevaciónàcos2(z).

Mejoras después de 1400.Máscara 3º.

“Decorrela alturas y correcciones ZPD, mejora precisión”Parámetros de gradiente horizontal.

“Asimetría azimutal de troposfera local en datos de baja elevación”Tipo ‘tilting’à cálculo componente ‘E’ y ‘N’.Cada 24h.

Page 36: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3636 366th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vTEST Troposfera (sem. 1461)Diferencias de coor.(con GH-sin GH):

Debajo del mm en planimetríaAltimetría, hasta 5mm.

Diferencia media0.5 ±1.2mm.

Precisiones.Mejora general.En sh≈ 15%.

0,6

0,5

0,0

0,5

0,5

0,5

0,5

0,5

0,5

0,6

0,5

0,7

0,6

0,5

1,1

0,5

0,6

0,6

0,5

1,1

0,5

0,5

sh(mm)Grd.Hr

sh(mm)

DUp(mm)

Est.

0,7-1,4ZOUF

0,63,0ZARA

0,00,0YEBE

0,6-2,7VILL

0,61,3VIGO

0,6-2,3VALE

0,6-4,3SONS

0,6-1,8SFER

0,60,4SALA

0,70,9ROVE

0,61,6RIOJ

0,7-1,6RABT

0,7-0,1PRAT

0,5-0,8PDEL

1,3-0,1NEWL

0,6-3,4MOPS

0,7-3,8MAS1

0,73,0MALL

0,6-2,9MALA

1,3-2,6LROC

0,6-2,0LPAL

0,60,1LEON

0,5

0,6

0,5

0,5

0,5

0,6

0,5

0,7

0,5

0,5

0,5

0,5

0,5

0,7

0,5

0,5

0,5

0,6

0,5

0,5

0,5

0,5

sh(mm)Grd.Hr

sh(mm)

DUp(mm)

Est.

0,6-1,5LAGO

0,72,2IGMI

0,70,6IENG

0,6-1,2HUEL

0,6-2,7HERT

0,7-1,2GAIA

0,61,5ESCO

0,8-1,3EBRE

0,6-0,9DARE

0,65,6CREU

0,6-0,6COBA

0,6-0,8CASC

0,63,3CANT

0,8-2,1CAGZ

0,6-1,1CACE

0,6-1,0BORR

0,6-2,4BELF

0,7-1,5BADH

0,6-0,4ALME

0,6-1,1ALBA

0,60,6ALAC

0,62,0ACOR

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Fecha del Congreso 3737 376th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

vModelo de carga de marea oceánica.De GOT99.2 a FES2004

FES2004 Solución de elementos finitos del Grupo de Mareas Francés (FTG).

Demostrado más preciso por altimetría de satélite

(Liar et al.(2006).Ocean Dynamics).

Page 38: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3838 386th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany

v Nuevos cambios

Cálculo GLONASS.

Cálculo con efemérides ultrarrápidas.

Mejora continua.

Page 39: IGE Local Analysis Centre - oma€¦ · 6th Local Analysis Centres Workshop October 22-23 2008, Frankfurt am Main, Germany Instituto Geográfico Nacional (Spain) 1 IGE Local Analysis

Fecha del Congreso 3939 396th LACs Workshop October 22-23 2008, Frankfurt am Main, Germany