10th Czech-Polish Workshop. Andrzej Araszkiewicz, Janusz Bogusz, Mariusz Figurski

Transcription

1 10th Czech-Polish Workshop ON RECENT GEODYNAMICS OF THE SUDETEN AND ADJACENT AREAS Application of short-time time GNSS solutions to geodynamical studies preliminary results Andrzej Araszkiewicz, Janusz Bogusz, Mariusz Figurski

2 Motivation

3 Motivation

4 Strategy Reference (datum) - few EPN stations (BOR1, WTZR, METS, POTS, ONSA); Only GPS observations (RINEX format) were used with carrier phase as a basic observable bl (double-differences, diff ionosphere-free linear combination); Processing strategy and models - similar to EPN Planetary ephemeris - DE405 Ocean tides - OT_CSRC MODELS Earth geopotential model - JGM3 Nutation model - IERS2000 Tidal displacements: Solid tides-according to IERS 1996/2000 standards Ocean loading model FES2004

5 Strategy Software Bernese 5.0 Elevation angle cutoff - 3 degrees, elevation dependent weighting using cos(z); Orbits and ERPs: IGS precise final orbits and ERPs; Troposphere: Saastamoinen- based dry component (Dry-Niell mapping function) as a priori i model and the Wet-Niell mapping function; Ionosphere - CODE global iono models (help to increase the number of resolved ambiguities),finally cancelled out due to ionosphere-free linear combination; Ambiguity - QIF strategy - for baseline lengths shorter than 100 km - L5/L3 approach, for baselines shorter than 20 km - L1/L2 approach.

6 Strategy

7 Data ASG-EUPOS (Polish Active Geodetic Network) - the Multifunctional precise satellite positioning system ASG-EUPOS established by the Head Office of Geodesy and Cartography. Consists of: 84 Polish sites with GPS module; 14 Polish sites with GPS/GLONASS module; 20 foreign sites. Data from January 2009 to March 2009.

8 Data 1 CBRU Bruntal Czech Republic 2 CFRM Frýdek Místek Czech Republic 3 CLIB Liberec Czech Republic 4 CPAR Pardubice Czech Republic 5 CSUM Šumperk Czech Republic 6 CSVI Svitavy Czech Republic 7 CTRU Trutnov Czech Republic 8 GANP PopradGanovce Slovakia 9 JLGR Jelenia Góra Poland 10 KATO Katowice Poland 11 KLDZ Kłodzko Poland 12 KRAW Kraków Poland 13 KROS Krosno Poland 14 KUZA Žilina Slovakia 15 LEGN Legnica Poland 16 LIE1 Liesek Slovakia 17 MILO Miłocin Poland 18 NWSC Nowy Sącz Poland 19 NWTG Nowy Targ Poland 20 NYSA Nysa Poland 21 OPLE Opole Poland 22 PROS Proszowice Poland 23 PRZM Przemyśl Poland 24 SKSK Svidnik Slovakia 25 SKSL Stará L'ubovňa Slovakia 26 SKSV Snina Slovakia 27 TARG Tarnowskie Góry Poland 28 TRNW Tarnów Poland 29 USDL Ustrzyki Dolne Poland 30 WLBR Wałbrzych Poland 31 WODZ Wodzisław Śląski Poland 32 WROC Wrocław Poland 33 ZYWI Żywiec Poland

9 Data Jelenia Góra

10 Data Wałbrzych

11 Data Šumperk

12 Data Bruntal

13 Data Stará L'ubovňa

14 Data Svidnik

15 B [mm] L [mm] Poprad Ganovce H [mm] daily solutions; hourly solutions.

16 B [mm] L [mm] Nysa H [mm] daily solutions; hourly solutions.

17 B [mm] L [mm] Šumperk H [mm] daily solutions; hourly solutions.

18 sites with no oscillations; sites with strong long-period changes; sites with no dominant oscillation; sites with dominant diurnal oscillation; sites with dominant sub-diurnal oscillations: 12-hours, 8-hours, 6-hours, noisy sites; sites with strange frequency behaviour.

19 B [mm] L [mm] Kłodzko 12-hour oscillations H [mm]

20 B [mm] L [mm] Liesek long-period changes H [mm]

21 B [mm] L [mm] Snina long-period changes H [mm]

22 B [mm] L [mm] Svidnik long-period changes H [mm]

23 B [mm] L [mm] Žilina noisy H [mm]

24 B [mm] L [mm] Jelenia Góra no oscillations H [mm]

25 B [mm] Nowy Targ diurnal oscillation

26 B [mm] Legnica diurnal oscillation

27 L [mm] Nowy Sącz diurnal oscillation

28 L [mm] Katowice diurnal oscillation

29 Przemyśl diurnal oscillation H [mm]

30 Liberec diurnal oscillation H [mm]

31 Opole diurnal oscillation H [mm]

32 Stará L'ubovňa diurnal oscillation H [mm]

33 B [mm] Tarnów 12-hour oscillations

34 B [mm] Trutnov 12-hour oscillations

35 L [mm] Ustrzyki Dolne 12-hour oscillations

36 L [mm] Żywiec 12-hour oscillations

37 Kłodzko 12-hour oscillations H [mm]

38 Kraków 12-hour oscillations H [mm]

39 B [mm] Žilina 8-hour oscillations

40 L [mm] Krosno 8-hour oscillations

41 Proszowice 8-hour oscillations H [mm]

42 B [mm] Wałbrzych 6-hour oscillations

43 B [mm] Nowy Sącz 6-hour oscillations

44 L [mm] Stará L'ubovňa 6-hour oscillations

45 L [mm] Wodzisław 6-hour oscillations

46 Tarnów 6-hour oscillations H [mm]

47 Wodzisław 6-hour oscillations H [mm]

48 B [mm] Przemyśl no dominant oscillations

49 L [mm] Milowice no dominant oscillations

50 Krosno no dominant oscillations H [mm]

51 B [mm] Tarnowskie Góry strange frequency behaviour

52 L [mm] Žilina strange frequency behaviour

53 Summary Relatively high consistency of the analysed time series: Even 4-hour oscillations are clearly seen; Site σ B [mm] σ L [mm] σ H [mm] CBRU 2,4 4,5 5,6 CLIB 4,5 6,9 9,1 CSUM 2,4 3,5 7,3 WLBR 3,9 5,1 8,4 SKSK 5,1 7,2 12,8 SKSL 4,7 4,5 10,2 JLGR 2,8 3,3 6,9 Too many outliers in L coordinate better ionospheric (scintillations, fluctuations of TEC, moving ionosphere perturbations TID) and tropospheric (4D model of water vapour distribution) models should be implemented; For proper interpretation distinguish between pure dynamic effects and others (e.g. thermal effects) is necessary; Verification of the existing models will be possible.

54 Thank you for your attention. ti