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1 8 . 1 1 . 2 0 1 0 , 7 t h E U R E F W O R K S H O P
Centre of Applied Geomatics (CAG) scientific activities
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www.cgs.wat.edu.pl
7 th EUREF WORKSHOP 2010
• Mariusz Figurski, • Kroszczyński K.,
• Szafranek K.,
• Araszkiewicz A.,
• Wrona M.,
• Bielecki K.
• Bogusz J.,
• Saczuk J.,
• Gałuszkiewicz M.,
• Kamiński P.,
• Szołucha M.
MUT MUT LAC Report
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Main activities
Centre of Applied Geomatics, www.cgs.wat.edu.pl
Weekly processing of the EPN subnetwork since 2009 (Military
University of Technology Local Analysis Centre – MUT LAC)
• Standard products –weekly and daily coordinates (SINEX)
• Troposphere TZD (tropospheric SINEX format)
Participation to in the EPN Reprocessing project;
Control Processing of the data from national GNSS network ASG-
EUPOS to realize ETRS89 (European Terrestrial Reference System) in
Poland;
Alternative to the HOGC solution (control)
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Main topics of activities
Centre of Applied Geomatics, www.cgs.wat.edu.pl
Other activities
• Processing of the data from commercial GNSS networks;
• Numerical weather prediction models (COAMPS and WRF)
application for ionosphere and troposphere investigations;
• Analyzes of the geodetic time-series;
• Application of precise GNSS measurements for engineering purposes.
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Permanent processing of EPN subnetwork since 2009
Centre of Applied Geomatics, www.cgs.wat.edu.pl
MUT LAC operates within
CAG since 2009 and
makes permanent GNSS
data processing of 114
sites distributed all over
Europe.
Software – Bernese 5.0
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EPN Reprocessing
http://www.epncb.oma.be
Centre of Applied Geomatics, www.cgs.wat.edu.pl
Project aimed at
reprocessing of
archival GPS
observations
gathered by all EPN
sites using the newest
models and softwares.
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Hardware and software in MUT
Cluster „FENIX”36x64bites core
• 16 nodes HP Server rx1620 (Intel Intanium 2 1.6GHZ
; 4GB RAM; 36GB SCSI) and storage 8TB.
• HP ProLiant DL380 G6 (2xIntel Xeon Nahalem
X5570 2.93GHz 4 cores each; 8GB RAM; 584GB
SAS)
• HP ProLiant DL380 G7 (2xIntel Xeon Westmere
X5680 3.33GHz 6 core each; 12GB RAM; 584GB
SAS, 500GB SATA)
The maximum power of cluster processing is about
500 GFLOP
Cluster works under control of 64-bites GNU/Linux operating
system with the latest 2.6. nucleus. The Debian GNU/Linux 5.0
Lenny was used as a distribution of GNU/Linux system. The 9TB
hdd storage is cooperating with the cluster.
It Software:Bernese GPS software v5.0, COAMPS 3.1/3.4,
GAMIT/GLOBK 10.35/10.4, Femlab 3.0.are fully exploiting
capabilities of the 64-bites architecture.
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Time processing – Bernese 5.0
Platform Compiler Processing Time [min]
IA-64 (8 CPU) g95 54:51
IA-64 (8 CPU) gfortran 54:38
IA-64 (8 CPU) Intel fortran 7.0 50:30
IA-64 (8 CPU) Intel Fortran 11.1 42:40
Nahalem X5570 (2CPUx4core) Lahey fortran 8.1 27:10
Nahalem X5570 (2CPUx4core) Intel Fortran 11.1 14:49
Nahalem X5680 (2CPUx6core) Intel Fortran 11.1 12:10
All processing for the reprocessing is time consuming. We tried to shorten this
time using the latest available technologies. Using the latest Intel Nahalem
processors allowed to shorten the time needed for calculation.
Table shows the processing time depending on used processor and compiler.
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EPN reprocessing - alternative software
Centre of Applied Geomatics, www.cgs.wat.edu.pl
GAMIT/GLOBK
Two centres in Europe:
1. CAG MUT
2. Landmäteriet (Sweden)
EPN network was divided into 7 sub-networks
CAG processes 3 of them (totally 138 sites)
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Realisation of ETRS’89 in Poland
EPN/IGS Centre of Applied Geomatics, www.cgs.wat.edu.pl
ASG-EUPOS (Active
Geodetic Network
European
Positioning System)
- multifunctional
precise satellite
positioning system
established by the
Polish Head Office of
Geodesy and
Cartography in 2008,
consisting of more
than 120 GNSS sites.
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Centre of Applied Geomatics, www.cgs.wat.edu.pl
Monitoring of ASG-EUPOS
daily
(for each day)
- processing similiar to EPN (could be
joined);
- for ETRS’89 realization and
determination of velocity field
- cumulative solutions – for
determination of the most
accurate coordinates
weekly
(for each week)
SOLUTIONS
(North, East, Up for each analyzed site)
- monitoring of the system;
- analyses of the factors which
decrease accuracy of the position.
sub-daily
(for each hour)
- for verification of the models used
in the data processing.
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Centre of Applied Geomatics, www.cgs.wat.edu.pl
Monitoring of ASG-EUPOS
WAT WROCŁAW GŁOGÓW
Determination of the station’s stability
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Centre of Applied Geomatics, www.cgs.wat.edu.pl
Monitoring of ASG-EUPOS
Determination of the
geodynamical
parameters:
• velocity vectors in
ITRF2005;
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Centre of Applied Geomatics, www.cgs.wat.edu.pl
Monitoring of the TPI commercial GNSS network
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COAMPS (Coupled Ocean/Atmosphere Mesoscale
Prediction System) and
WRF (Weather Research and Forecasting)
Numerical Weather Prediction Models
Centre of Applied Geomatics, www.cgs.wat.edu.pl
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COAMPS and WRF in GNSS slant delay determination
Numerical Weather Prediction Models
Centre of Applied Geomatics, www.cgs.wat.edu.pl
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GNSS in structural monitoring applications
Centre of Applied Geomatics, www.cgs.wat.edu.pl
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Future tasks and problems to solve:
• Expression of the REPRO1 solution (for the
whole EPN network) in ITRF2005 and
ITRF2008 (before the end of 2010);
• ASG-EUPOS monitoring system using EPN
standards and combination with other EUPOS
solutions;
• Analyzes of TZD assimilation for COAMPS or
WRF.
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www.cgs.wat.edu.pl