Atividades do Centro de Processamento IBGE

Atividades

Atividades

do Centro de

do Centro de

Processamento

Processamento

IBGE

IBGE

Sônia Maria Alves Costa

Alberto Luis da Silva

Maíra Kronemberg Lima

Gabriel Neves Lago

Reunião do WG I - Projeto SIRGAS

Overview

Overview

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Data processed from january 2003 to july 2006 – 1199 to 1381

GPS week

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69 stations (from 2003 to 2006 - july)

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Software: Bernese 5.0 – BPE

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Data download and uncompression: automatically by ftp script

Preliminary report:

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Map of network

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Receivers and antennae of GPS stations

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Main options of IBGE processing

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PCF file used on daily processing

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PCF file used on week processing

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Data processing collection

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Residual analysis(IBGE X DGFI X IGb00 X SIRGAS2000)

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Time series (relative and absolute antenna phase center

variation)

MAP OF IBGE NETWORK

NEW STATIONS - 2006

KOUR KOU1

▲

new stations - 2006

NEW - 19 STATIONS

BARI

CARA VENEZUELA

MARA

PMB1

SRNW SURINAME

SRZN

BRFT

MAPA

POVE BRASIL

NAUS

PPTE

IGM1

MPLA

MZAC

PDES ARGENTINA

RWSN

UCOR

UNRO

VBCA

OUT OF OPERATION

ANTC

COYQ CHILE

PARC

VALP

TUCU ARGENTINA

LHCL

AUTF

MANU

UEPP

BRASIL

FORT

MAIN CHARACTERISTICS OF IBGE PROCESSING

Start of processing

January 2003

Software used

Bernese 5.0 ( BPE mode)

Sampling rate

30 sec for 1 day solution

Elevation cutoff

10

°

Baselines strategy

SHORTEST

Observations

weighting

cos(zenithal)

Orbits/EOP

IGS final referred to IGS00

A priori Troposphere

model

Niell dry component

Troposphere

Zenith delay estimated each 2 hours(12 daily

corrections p/station)

A priori sigmas applied with respect to

prediction model Niell(wet component)

-first parameter +/- 5 m absolute and +/- 5 cm

relative

Ambiguities

QIF strategy with Ionosphere maps from IGS

Ocean tide model

GOT00.2

Daily solution

NEQ files, minimum constraint solution BRAZ

(ITRF2000 coordinates)

OUTPUT: SINEX files

Troposphere maps

Week solution

SINEX files and NEQ accumulated from daily

solutions to create week solutions. Constrained

in 4 stations (BRAZ, LPGS, RIOG and SANT)

without troposphere parameters.

DATA PROCESSING COLLECTION – 1 of 3

Ano 2003 - Semana GPS 1199-1251 (365 dias)

3 4 1 8 4 0 3 0 3 5 7 3 6 1 0 0 0 12 3 14 5 3 2 8 7 12 6 114 3 3 0 0 2 7 9 0 19 3 2 8 3 0 0 2 2 9 2 7 4 112 3 3 9 4 5 3 2 8 17 8 0 0 0 0 0 0 3 3 2 6 3 5 0 18 5 0 0 3 4 9 0 0 2 7 1 3 4 5 3 10 0 3 4 0 3 5 9 3 2 9 0 0 2 9 3 0 0 0 3 5 9 0 3 4 6 0 0 0 3 5 7 3 0 5 3 5 4 0 50 100 150 200 250 300 350 400 Estações D ias P ro cess ad o s

Ano 2004 - Semana GPS 1251-1303 (366 dias)

4 9 3 16 0 0 3 4 3 0 3 5 4 0 0 0 8 2 2 2 9 3 0 3 17 0 3 5 0 0 0 2 9 2 3 5 8 16 4 0 2 9 8 0 3 4 7 0 3 0 8 0 0 0 13 2 0 0 0 2 0 7 2 9 7 3 5 1 0 0 0 3 4 4 0 0 3 2 4 3 5 1 3 3 7 0 3 4 6 3 6 4 3 4 1 0 0 0 18 15 4 0 3 3 8 0 3 16 0 14 0 3 4 4 3 6 4 3 6 2 3 0 8 3 0 2 3 3 9 0 50 100 150 200 250 300 350 400 Estações D ia s P ro c e ssad o s

DATA PROCESSING COLLECTION – 2 of 3

Ano 2005 - Semana GPS 1303-1355 (365 dias)

0 3 3 7 0 0 3 19 16 5 3 4 5 2 8 0 3 5 3 7 6 15 7 0 4 1 2 2 9 3 5 7 12 3 2 7 7 0 2 5 6 117 3 3 7 7 0 2 5 1 2 8 8 19 5 0 19 2 12 5 3 2 9 3 5 9 0 3 5 3 0 10 0 15 1 0 0 0 2 8 53 0 2 3 4 7 0 0 0 3 0 1 5 0 0 2 8 4 3 2 9 3 5 2 0 2 7 4 0 0 0 2 8 32 9 9 0 3 0 6 0 3 3 4 13 2 2 5 4 0 3 2 8 3 3 5 3 3 0 0 50 100 150 200 250 300 350 400 Estações D ias P ro cessa d o s

Ano 2006 - Semana GPS 1356-1381 (182 dias)

0 8 6 0 14 9 17 5 0 17 1 18 1 16 517 4 0 13 9 17 0 16 317 1 5 8 10 2 0 15 4 0 18 2 3 2 0 8 1 17 2 14 6 17 2 13 7 3 6 0 17 4 0 13 8 16 8 18 1 111 14 1 16 4 14 1 16 2 17 7 0 12 1 17 8 _{17 3} 114 10 1 2 3 12 9 18 1 16 8 0 16 517 3 0 18 2 17 2 16 2 16 4 16 7 118 16 4 17 3 17 5 16 8 17 9 17 2 18 2 18 2 0 20 40 60 80 100 120 140 160 180 200 Estações D ia s P roc e s s a dos

DATA PROCESSING COLLECTION – 3 of 3

Porcentagem das Estações - Semana GPS 1199-1381

28 85 712 66 13 96 9297 20 1211 33 6665 38 47 9 83 9 90 3 1 74 64 40 13 67 34 74 94 4 91 141213 36 9 1113 50 85 96 14 9 9 92 17 14 82 93 92 14 89 97 92 9 8 25 34 50 13 78 13 91 10 35 13 93 0 20 40 60 80 100 120 Estações %

Constraints

Week Solutions:

BRAZ:

97%

LPGS:

91%

RIOG:

92%

SANT:

97%

RESIDUALS at STATION - SANT

• IBGE X DGFI

• IBGE X IGb00

RESIDUALS at STATION - SANT

• IBGE X SIRGAS2000

RESIDUALS at STATION - BRAZ

• IBGE X DGFI

• IBGE X IGb00

RESIDUALS at STATION - BRAZ

• IBGE X SIRGAS2000

RESIDUALS at STATION - FORT

• IBGE X DGFI

• IBGE X IGb00

RESIDUALS at STATION - FORT

• IBGE X SIRGAS2000

RESIDUALS at IBGE X DGFI

IBGE (RELATIVE) X DGFI (RELATIVE) – UNTIL 1355

TIME SERIES - BRAZ

BRAZ

Centro de fase absoluto

TIME SERIES - LPGS

LPGS

TIME SERIES – RIOG

RIOG

TIME SERIES - SANT

SANT

TIME SERIES - CONZ

CONZ

TIME SERIES - CUIB

CUIB

TIME SERIES - CUIB

FORT

TIME SERIES - VARG

VARG

TIME SERIES

MANU

NAUS

MAPA

POVE

IONOSPHERE

Resolução das ambiguidades - Estratégia QIF

0 10 20 30 40 50 60 70 80 90 100 ARE Q U N S A BAR I BO G T BA RI CARA BAR I M A R A BE L E M A P A B R F T CRA T BO M J M C L A BO M J S A L V B OGT GL P S BR AZ M C L A BR AZ UB E R CA RA S R NW CO N Z S A NT CR A T RE CF C RAT S A L V CUI B P P T E C U IB P O V E IG M 1 L P G S IG M 1 S M A R IG M 1 UNRO KO U 1 KO U R KO U 1 S R Z N KO U R M A P A LP G S - M P LA MP L A R W S N M Z AC S A NT M Z AC UC O R N A U S PO V E N AUS S R N W N E IA P A R A NE IA UBA T OH I2 R IOG PA R A PO A L PA R A PPT E PD ES R IO G PD ES R W S N P M B 1 S RNW PM B 1 S R Z N PO A L SM A R RI O D UB A T U BAT V A R G UC O R U NRO UC O R U N S A UBE R V A RG Linha de base % Sem COD.ION Com COD.ION

• Não há uma melhora significativa com a utilização dos arquivos de ionosfera global

(CODE) para as estações da região sul americana;

• Necessidade de utilizar arquivos de ionosfera regional;