VIDN MARJ BISK LUBY STAM KYNS VACO TEME PRAG CHOT SECZ TREB

Transcription

1 10th Czech-Polish workshop on Recent Geodynamics of the Sudeten and Adjacent Areas, Szklarska Poręba, Poland November 5-7, 2009 THE PERMANENT GNSS OBSERVATORIES OF GEONAS NETWORK Cajthamlová Milada Center for Earth s Dynamic Research Institute of Rock Structure and Mechanics AV ČR v.v.i V Holešovičkách 41, Praha 8

2 The goals the Earth surface monitoring the long term changes and present moves of Bohemian Massif s individual geological structures through the use of GNSS measurements the permanent GNSS observatories the epoch GNSS networks (detail monitoring)

3 The permanent observatory of the GEONAS network ( cz LITO SLUK cz) SNE2 UPIC BEZD MARJ VIDN IRSM IRSM/EPN LUBY BISK POUS STAM TREB KYNS VACO TEME PRAG CHOT SECZ

4 The permanent observatory of the GEONAS network ( Observatory Site Date Latitude Longitude El. height Receivre Antenna Note BEZD Bezděkov nad Metují TPS GB-1000 TPSCR3_GGD CONE BISK Biskupská Kupa ASHTECH Z18 ASH SNOW meteo+webcam CHOT Chotěboř TPS GB-1000 TPSCR3_GGD CONE KYNS Kynšperk-Kolová TPS GB-1000 TPSCR3_GGD CONE LITO Litoměřice ASHTECH Z18 ASH SNOW LUBY Luby TPS GB-1000 TPSCR3_GGD CONE MARJ Mariánská ASHTECH Z18 ASH SNOW meteo+webcam POUS Poustka TPS GB-1000 TPSCR3_GGD CONE PRAG Praha-Holešovice TPS GB-1000 TPSCR3_GGD CONE meteo+webcam SECZ Sečč TPS GB-1000 TPSCR3_GGD CONE meteo+webcam SLUK Šluknov TPS GB-1000 TPSCR3_GGD CONE SNEC Sněžka TPS GB-1000 TPSCR3_GGD CONE meteo+webcam SNE2 Sněžka TPS GB-1000 TPSCR_G3 CONE STAM Staré Město TPS GB-1000 TPSCR3_GGD CONE meteo+webcam TREB Třebíč TOPCON NET-G3 TPSCR_G3 CONE TEME Temelín TPS GB-1000 TPSCR3_GGD CONE UPIC Úpice TPS GB-1000 TPSCR3_GGD CONE VACO Vacov ASHTECH Z18 ASH SNOW meteo+webcam VIDN Vidnava TPS GB-1000 TPSCR3_GGD CONE

5 The observatory of GEONAS network GPS antenna Feeder main GPRS modem GPS receiver Modem switch System cooling Undervoltage protection Ethernet switch 100 Mbit/s Minicomputer Charger Pb. aku. Accumulator 225Ah (25-30 hours operation) - processor VORTEX86 / 166 MHz - 40 Gbyte HDD (for data storage for a period of one year) - Debian GNU Linux

6 The permanent observatory of the GEONAS network ( elevation mask 5 registration interval 1 or 5 second accumulator for independent power supply of observatory for minimally 24 hours data transfer to the server of operational center IRS located in the IRSM data checking and storage in the database (in the case of missing data is the transfer repeated) data archivation data transfer from observatories included in the EUREF EPN into the operational centers BKG and OLG

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8 Processing of GNSS data from permanent observatories data processing by software Bernese 5.0 edition using BPE precise satellite orbits and satellite clock data, precession of the Earth's rotation parameters were used from CODE - Bern geocentric and geographic coordinates were computed in ITRF2000 reference frame stability of daily solution is done using four stations EPN: Wetzel (WTZR), Graz (GRAZ), Potsdam (POTS) a Borowiec (BOR1) time series es positions o s GNSS antennas as

9 Problems with frost cower antenna change

10 Standard deviation Observatory sx [mm] sy [mm] sz [mm] BEZD 2,3 1,2 2,6 BISK 2,5 1,6 3,0 CHOT 1,9 1,0 2,4 KYNS 2,1 1,0 2,5 LITO 26 2,6 13 1,3 26 2,6 LUBY 2,3 1,2 2,4 MARJ 2,9 1,6 3,4 POUS 2,7 1,6 2,7 POUS 2,3 1,1 2,6 PRAG 2,6 1,1 3,0 SECZ 1,8 1,4 2,2 SLUK 19 1,9 09 0,9 25 2,5 SNEC 3,6 5,3 5,5 SNEC 3,5 3,9 3,8 SNE2 2,3 1,5 2,6 STAM 3,1 2,4 3,3 TEME 2,6 1,4 2,5 TREB 2,1 1,2 2,5 UPIC 23 2,3 09 0,9 23 2,3 VACO 2,4 1,4 2,8 VIDN 2,3 1,3 2,7

11 MARJ (X,Y) time series, Gaussian curve vx Lineární (vx) MARJ vy Lineární (vy) MARJ y = -0,0461x y = 0,0429x ,1 80,0 60,0 40,0 20,0 0,0 Sep-02-20,0 Jan-04 May-05 Oct-06 Feb-08 Jul-09 Nov-10-40,0-60,0 80,0 60,0 40,0 20,0 0,0-20,0 Sep-02 Jan-04 May-05 Oct-06 Feb-08 Jul-09 Nov-10-40,0-60,0-80,0 vx MARJ vy MARJ 0,300 0,300 0,200 0,200 0,100 0,100 0,000-20,0-15,0-10,0-5,0 0,0 5,0 10,0 15,0 20,0 0,000-20,0-15,0-10,0-5,0 0,0 5,0 10,0 15,0 20,0

12 MARJ (X,Y) running standard period: 100 days deviation 4,0 4,0 3,0 3,0 2,0 2,0 10 1,0 10 1,0 0,0 Sep-02 Jan-04 May-05 Oct-06 Feb-08 Jul-09 Nov-10 0,0 Sep-02 Jan-04 May-05 Oct-06 Feb-08 Jul-09 Nov-10

13 MARJ (Z) time series, Gaussian curve, running standard deviation vz Lineární (vz) MARJ y = -0,0227x + 882,52 vz MARJ 40,0 30,0 20,0 10,00 0,0-10,0 Sep-02 Jan-04 May-05 Oct-06 Feb-08 Jul-09 Nov-10-20,0 0,300 0,200 0,100-30,0 0,000-40,0-20,0-15,0-10,0-5,0 0,0 5,0 10,0 15,0 20,0 4,0 3,0 2,0 1,0 0,0 Sep-02 Jan-04 May-05 Oct-06 Feb-08 Jul-09 Nov-10

14 MARJ running Gaussian curve period: 100 days vx800 vx200 vx1200 vx900 MARJ MRJ MARJ vx1600 vx500 vx2100 vx300 vx600 vx1100 vx1800 vx2000 vx1000 vx2180 vx1500 vx1900 vx1300 vx1400 vx1700 vx400 vx700 y Y y MARJ MARJ ,20 0,15 0,10 0,20 0,15 0,10 0,40 0,30 0,20 0,05 0,05, 0,10 0 0,00 0,00-8,0-12,0-10,0-6,0-8,0-8,0-6,0-4,0-4,0-4,0-2,0-2,0 0,0 0,0 2,0 4,0 2,0 2,06,0 4,0 8,0 6,0 4,0 10,0 8,0 12,0 6,0 10,0 12,0 8,0 0,00-6,0-4,0-2,0 0,0 2,0 4,0 6,0 8,0 10,0 12,0

15 Conclusion and Outlooks the GPS measurements in the Bohemian Massif started in 1997 by annual campaigns on regional geodynamic networks and in 2001 by observations on permanent stations (GEONAS network) relative long-term period of the GPS observations guarantees high accuracy, the standard deviations of determinations of the horizontal movements are less then 1 mm/year the further continuation of the GPS measurements is necessary to increase the accuracy of position determinations, especially of the vertical movements

16 The end Thank you for your attention