real time gnss-sp network: a multipurpose ......real time gnss-sp network: a multipurpose...

REAL TIME GNSS-SP NETWORK: A

MULTIPURPOSE INFRASTRUCTURE

Joao F. Galera Monico1, Paulo de O. Camargo1,

Daniele B. Marra Alves1, Luiz F. Sapucci2, Claudinei R. Aguiar3

1 - FCT/UNESP – Universidade Estadual Paulista, Presidente Prudente - SP 2 – CPTEC/INPE - National Institute of Space Research, Center for Weather

Forecasting and Climate Research , Cachoeira Paulista – SP 3 –IFTR – Pato Branco, PR.

{galera, danibarroca, paulo}@fct.unesp.br;

{luiz.sapucci@cptec.inpe.br}

<rodrigues.aguiar@gmail.com>

GNSS-SP Network • São Paulo State GNSS Network (GNSS-SP);

• Financial support provide by FAPESP, the

Foundation for Research at São Paulo State;

• Besides GNSS receivers, few stations is also

equipped with PTU (Meteorological) devices

(Vaisala);

• Data are sampled every 1 second.

GNSS-SP Real Time Network

GNSS and Meteorological Station

GNSS Reference Stations 1 SPAR Araçatuba NetR8 TRIMBLE

CR TRM59800

GNSS TRIMBLE NO

2 SPBO Botucatu GRX1200

GNSS LEICA AX1203 GNSS LEICA YES

3 CHPI Cachoeira Paulista UZ - 12 ASTECH DORNE

MARGOLIN ASTECH YES

4 SPCA Campinas NET R8 TRIMBLE CR TRM59800

GNSS TRIMBLE YES

5 NEIA Cananéia NET R8 TRIMBLE LEIAX1203

GNSS LEICA YES

6 SPFR Franca NET R8 TRIMBLE GNSS CHOKE

RING 59800 TRIMBLE YES

7 ILHA Ilha Solteira RGRX1200

GNSS LEICA

LEIAX1203

GNSS LEICA YES

8 SPJA Jaboticabal NET R8 TRIMBLE CR TRM59800

GNSS TRIMBLE YES

9 OURI Ourinhos NET R8 TRIMBLE

ZEPHYR GNSS

GEO 2

TRM55971

TRIMBLE YES

10 PPTE Presidente Prudente NET R8 TRIMBLE GNSS CHOKE

RING TRIMBLE YES

11 ROSA Rosana NET R5 TRIMBLE

ZEPHYR GNSS

GEO 2

TRM55971

TRIMBLE YES

12 SJRP São José do Rio

Preto NET R5 TRIMBLE

ZEPHYR GEOO

TRM41249 TRIMBLE YES

14 UBAT1 Ubatuba NET R8 TRIMBLE GNSS CHOKE

RING 59800 TRIMBLE YES

15 POLI São Paulo NET R8 TRIMBLE GNSS CHOKE

RING 29659 TRIMBLE

YES/NO

ACESS

16 SPLI Lins NET R8 TRIMBLE

GNSS CHOKE

RING 59800 TRIMBLE NO

17 SPPI Piracicaba NET R8 TRIMBLE

GNSS CHOKE

RING 59800 TRIMBLE YES

Few examples of GNSS Monuments

types

–VRS3Net – Trimble / RTK Network

–Spider - Leica:

–Several scripts for downloads and

transfers were developed;

–NTRIP Caster since 2006;

–Storage capability of the order of 20 ??

TB.

Softwares for data management

and storage

– Hourly (1s) and daily (15 s) files in Hatanaka

format;

• Data are mainly used for research, but also made

available for practical use (Geodesy and Mapping)

• Data was provided to the NASA L2CTest net

(ROSA, OURI e SJRP)

– Real time via NTRIP Client (after registering):

• Several tests being carried out (BKG, Real time PPP,

MagicSBAS, IGSRT, JPLRT, LaPlata and

FCT/UNESP Ionosphere models)

Data Acess

NTRIP

NTRIP SERVER NTRIP CLIENT

NTRIP

• Data from all Brazilian

real time stations are

also collect at the

Master station of

GNSS-SP network.

Applications and services in development

• GPS Meteorology;

– Near real time estimation of zenithal tropospheric delays

for all Brazilian GNSS Real time stations (GOA-II);

• These data are made available to CPTEC/INPE NWM

(numerical weather model);

• Several stations equipped with Met devices – IWV is computed

• Near real time TEC computed also from the all

Brazilian GNSS Real time stations

• It is under development

– Pos processing VRS,

– RTK and DGPS network;

Applications and services in development

• RTK Network (VRS Concept - Commercial)

Applications and services in development

• RTK Network (I95 Index – among others products)

GNSS-SP Net for TEC model and computation

GNSS-SP Net for TEC model and computation

(Grid of 0.5 x 0.5 degree) (GPS/GLONASS)

GNSS-SP Net for TEC model and computation

(Grid of 2.5 x 2.5 degree) (GPS/GLONASS)

Real Time TEC Estimates

Spatial GeodesyLaboratory

BNC

ALDAR

Rinex: Observation(Real Time)

Ionosphere Model Ionosphere Monitoring

Ionosphere Algorithm

Coefficientsc1, ..., cn

VTEC, RTEC, IPP

IFB

Future developments

• From Research and Development to

Operational via IGC;

– IGC is the Institute of Geography and Cartography of

São Paulo State

– IGC has already a license of VRS3Net software

and will probably be responsible by the

operational duties of the network after the end

of the GNSS-SP project.

• Integration GNSS-SP & CIGALA/CALIBRA

– Performance of RTK & PPP under IS.

Final Considerations • Active GNSS network provides several kind of

applications, besides the original aim (Geodesy and

Cartography);

– It is a reality with GNSS network of São Paulo State

• Provides integration of research all over the word (It is

already a reality in South America – SIRGAS-CON).

• GNSS Active network of São Paulo State is one of the

densest in the South Hemisphere, providing possibility

for several kind of research and applications.

http://gege.fct.unesp.br

unesp

Acknowledgments