National report of Slovakia 2016
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1 National report of Slovakia 2016 Branislav Droščák, Ivan Horváth, Karol Smolík 1), Marcel Mojzeš, Juraj Papčo, Ľubomíra Gerhátová, Martina Minariková 2) 1) Geodetic and Cartographic Institute Bratislava 2) Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Department of theoretical Geodesy EUREF 2016, annual symposium May 2016, San Sebastian, Spain
2 Outline Slovakian activities and contributions to EPN Status, activities and news from: SKPOS (Slovak real time determination system) national levelling network national gravimetric network Research and development Activities of Geodetic and cartographic institute Activities of Slovak university of Technology Other news from Slovakia
3 Slovakian EPN Operational centers Geodetic and Cartographic Institute Bratislava (GKÚ) Slovak University of Technology in Bratislava (SUT)
4 Slovakian EPN Local analysis center Slovak University of Technology in Bratislava (SUT) used since GPS week new EPN permanent stations added to LAC SUT network solution (IRBE, NPAZ, ONS1, SABA) GMF: Vienna Mapping Function is used instead Niell Mapping Function GPS and GLONASS observations are used since GPS week 1878 ESA ephemerides are used
5 Slovakian EPN permanent stations MOPI GANP MOP2 BBYS
6 Slovakian EPN Real-time permanent stations GANP MOP2
7 Slovakian contribution to EPN Densification
8 Status and news from Slovakian real-time determination system - SKPOS => 10 years of SKPOS
9 SKPOS infrastructure status (May 2016) 34 Slovakian permanent stations (14 individual calibrated) All stations observe GPS+GLONASS signals (few Galileo) Network density - average distance between stations : 44,6 km 19 foreign permanent stations (APOS, gnssnet.hu, CZEPOS, ASG-EUPOS, ZAKPOS) Totally 53 permanent stations
10 SKPOS infrastructure for geodynamics research 12 from 34 slovakian SKPOS permanent stations have monumentation suitable for geodynamic research purposes 7 stations reinforced-concrete pilier monumentation 5 stations deep drilled braced mark monumentation (5m deep) 2 mm SKTRF09 SKPOS
11 SKPOS number of users
12 SKPOS type of users Surveying fields (cadastre, surveying, mapping, GIS) - 84% Other fields (precise agriculture, machine guarding) - 16%
13 SKPOS packages - data formats - charges Package Content Duration Format Flat rate SKPOS_mm RINEX 1000 h year RINEX 2.x, 3.x 50 SKPOS_cm (year) RTK unlimited + 50 h RINEX year RTCM 2.3, 3.1, CMRx, CMR+ 50 SKPOS_cm (month) RTK unlimited month RTCM 2.3, 3.1, CMRx, CMR+ 19 SKPOS_dm DGNSS unlimited year RTCM
14 New SKPOS web page new (redesign) web page was launched Full of interesting information (SVK/ENG): News Infrastructure Packages and prices Quality Monitoring Availability Monitoring Registration...
15 New SKPOS registration a ordering system User interface From
16 New SKPOS registration a ordering system Administrator interface From
17 Status, activities and news from national levelling network
18 National levelling network Measurements in 2015: 564 km of 2 nd order levelling lines worked done by 3 levelling groups 2020 target: New vertical reference system realization (data from ) more information in Droscak et al. presentation
19 Status, activities and news from national gravimetric network
20 National gravimetric network Renovation of Slovakian gravimetric baseline: 2 monumentations for absolute measurements 4 monumentations for relative measurements 64 gravity difference measured worked done by 1 leveling groups 2020 target: New Slovakian gravimetic baseline (partly in Tatra mountain region)
21 Research and development
22 Projects supported by data from SKPOS EPN real-time analysis project ECC (EUPOS Combination Centre) EUPOS monitoring system Project National center for diagnosing the earth surface deformations in Slovakia SES - Space Emergency System in Transcarpathian region EGVAP
23 Space emergency system Multilateral project: Ukraine-Slovakia-Hungary-Romania Agreement signed in December 2015 goal: creation of Space emergency system more: GKU contributes with data from SKPOS
24 E-GVAP programme EUMETNET GPS Water Vapour Programme data from SKPOS stations supports E-GVAP via GOP data center (Tropnet)
25 Slovak University of Technology Research and development activities
26 National center for diagnosing the Earth surface deformations in Slovakia ITMS research project ( Surface deformations monitored on 9 geodynamics points by Permanent GNSS stations Absolute gravity measurements
27 National center for diagnosing the Earth surface deformations in Slovakia Preliminary results (only 1.3 year): vertical velocities (left picture) absolute gravity changes (right picture)
28 Short-term and Long-term variability of antenna position due to thermal bending of pillar monument at permanent station SUT1 The most significant impact on concrete pillar movements has diurnal variability of temperature and the sunshine activity. Effects of these factors is warming up of pillar s sun-side and consequent inclination from the sun. Inclination s direction is determined by irregular thermal expansion of pillar. Daily temperature range versus inclination ranges (east-west and north-south) observed at SUT1 pillar. Daily variability of temperature ranges from 0 to 28 C (experiment was made throughout the year). To these ranges belong values from 0 to 200 in east-west direction and from 0 to 130 in north-south direction.
29 Short-term and Long-term variability of antenna position due to thermal bending of pillar monument at permanent station SUT1 Long-term time series of inclination observations at SUT1 pillar. Time series of daily inclination ranges in east-west (in blue) and north-south (in green) constituents observed at SUT1 pillar, and the duration of daily sunshine (in red). Correlation between daily inclination s range and sunshine hours is strong in case of stable sunny or cloudy weather throught the day, in case of varying weather the correlation is low.
30 Multi-sensor InSAR deformation monitoring over bulidings and infrastructures in Bratislava (SLOVAKIA) Persistent Scatterer InSAR analysis spanning 24 years ( ) of spaceborne SAR measurements using ERS, ENVISAT, TERRASAR-X, RADARSAT-2 and SENTINEL-1. HIGHWAYS RAILWAYS INDUSTRIAL ZONES
31 Multi-sensor InSAR deformation monitoring over bulidings and infrastructures in Bratislava (SLOVAKIA) Persistent Scatterer InSAR analysis spanning 24 years ( ) of spaceborne SAR measurements using ERS, ENVISAT, TERRASAR-X, RADARSAT-2 and SENTINEL-1. BRIDGES
32 DAMS DAMS Comparison with ground truth measurements (levelling) over strategic objects such as dams.
33 A data mining approach for multivariate outlier detection in heterogenous 2D point clouds Deformation map over area of active landslides in Prievidza, Slovakia. References: M. Bakon, I. Oliveira, D. Perissin, J. Sousa and J. Papco, "A data mining approach for multivariate outlier detection in heterogeneous 2D point clouds: An application to post-processing ofmulti-temporal InSAR results," Geoscience and Remote Sensing Symposium(IGARSS), 2016 IEEE International, Beijing, 2016
34 Other news
35 Slovakian quasigeoid DVRM since March 2015 available for free of charge DVRM is intended for the transfer of ellipsoidal heights determined using GNSS in the ETRS89 system to the system of normal heights Bpv
36 Thank you for your attention
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