The modernization of the seismic array ARCES/PS28

Transcription

1 The modernization of the seismic array ARCES/PS28 Norwegian NDC 10/8/2015 1

2 Seismic Arrays: NOA (PS27) ARCES (PS28) SPITS (AS72) NORES Seismic Stations: JMIC (AS73) AKN TROLL, Antarctica JETT Radionuclide Station: RN49 Infrasound Array: IS37 (10 elements) ARCI (9 elements) NORES (9 elements) Additional realtime data streams from seismic arrays: HFS (AS101), Sweden FINES (PS17), Finland APA, Russia EKA (AS104), UK TORD (PS26), Niger 10/8/2015 Page 2

3 1987 ARCES established 21 1C SP sites, 4 3C SP sites (GS13) 1 3C LP/IP site (KS36000) central timing, Sandia digitizer 1999 Major refurbishment Nanometrics digitizers, central timing, RM4 multiplexors 2001 Certified Recapitalization plan submitted Intended hardware tests in 2009 Intended implementation and installations in years later finally startup 2013 Recapitalization contract signed 10/8/2015 Page 3

4 ARCES-PS28 Status instruments - 25 GS-13 (vertical, SP) - 8 GS-13 (horizontal, SP) - 1 CMG-3T (3-comp, BB) Nanometrics digitizers 36 channels (40 Hz) Central building: Data acquisition computers UPS FO modems Power distribution system central timing Communication: Optical fibre (intra-array) VSAT 8-Oct km diameter 25 SP sites (21 1C SP, 4 3C SP) 1 BB site 5 km

5 Main content of recapitalization - Sensors (25 3C broadband + 5 spares) - Digitizers - Pit boxes (communication/power) - Lightning protection - Central timing - Central acquisition system - FO communication - UPS - Renovation of central recording facility 10/8/2015 Page 5

6 Guralp 3T seismometers with hybrid response 360s 50Hz at central site 120s 50Hz at 24 sites April 2013 May 2013 May-July prototype seismic sensors tested and approved (instrument response, instrument noise, coherency) Order of the remaining sensors Delivery and tests of remaining 28 seismic sensors 10/8/2015 Page 6

7 Old and new instrument responses at ARCES Phase response Amplitude response (ground velocity) 10/8/2015 Page 7

8 Timing array (3 GPSes input, voltage controlled 32MHz oscillator, chip scale atomic clock Apr 2012 ordered July 2013 prototype delivered Sep Mar 2014 extensive tests with several digitizers in parallel setup (common input signal, comparison with single GPS input, GPS blinding, powercycling, etc) Several iterations with new circuit boards and firmware Mar 2014 approved 10/8/2015 Page 8

9 Pit box Feb 2014 FO multiplexor cards ordered July 2014 FO delivered June Sep 2014 Manufacturing and assembling of pit boxes and cables 10/8/2015 Page 9

10 FO communication and central acquisition rack June 2014 Tests of FO multiplexors with up to 3 km optical fibres June Sep 2014 Manufacturing of FO racks 10/8/2015 Page 10

11 ARCES pit mockup 10/8/2015 Page 11

12 July-August 2014 at home Digitizer/sensor pairing and association to ARCES sites Digitizer configuration Channel setup (CD11 multiplexor, sender, parameters) Preparations of system responses for all channels at ARCES (local provider) Installation/configuration of satellite BB service Installation/configuration of GSM cell network service 10/8/2015 Page 12

13 Fieldwork Sep km Start days drive to ARCES 1 day setting up central acquisition system and new communication 4 days working on the pits 2 days testing and cleaning up 2 days travelling back End persons 3430 km 10/8/2015 Page 13

14 km 10/8/2015 Page 14

15 10/8/2015 Page 15

16 km ARA0 ARA1 ARA2 ARA3 ARB1 ARB2 ARB3 ARB4 ARB5 ARC1 ARC2 ARC3 ARC4 ARC5 ARC6 ARC7 ARD1 ARD2 ARD3 ARD4 ARD5 ARD6 ARD7 ARD8 ARD9 10/8/2015 Page 16

17 km ARA0 ARA1 ARA2 ARA3 ARB1 ARB2 ARB3 ARB4 ARB5 ARC1 ARC2 ARC3 ARC4 ARC5 ARC6 ARC7 ARD1 ARD2 ARD3 ARD4 ARD5 ARD6 ARD7 ARD8 ARD9 10/8/2015 Page 17

18 km ARA0 ARA1 ARA2 ARA3 ARB1 ARB2 ARB3 ARB4 ARB5 ARC1 ARC2 ARC3 ARC4 ARC5 ARC6 ARC7 ARD1 ARD2 ARD3 ARD4 ARD5 ARD6 ARD7 ARD8 ARD9 10/8/2015 Page 18

19 km ARA0 ARA1 ARA2 ARA3 ARB1 ARB2 ARB3 ARB4 ARB5 ARC1 ARC2 ARC3 ARC4 ARC5 ARC6 ARC7 ARD1 ARD2 ARD3 ARD4 ARD5 ARD6 ARD7 ARD8 ARD9 10/8/2015 Page 19

20 10/8/2015 Page 20

21 Orientation Guralp 3T Power 10/8/2015 Page 21 Digitizer and pitbox

22 GS 13 10/8/2015 Page 22 Nanometrics digitizers

23 10/8/2015 Page 23

24 ARCES PS28 Central timing NAM Serial/USB converter FO converters Remote power switch MOXA EAM hot spare 10/8/2015 Page 24

25 GPS for central timing BB over satellite Snow comes time to go home 10/8/2015 Page 25

26 BB GSM VSAT Data transmission Sep 2014 Sep 2015 Central timing array Switch Guralp NAM - PPP service for communication to sites - central timing distribution - SOH server - CDreceiver - CD data streams ARCES (authenticated), ARCHH, ARCLP, ARCI, ARCMP - CDsender for ARCES to NDC via VSAT - 4 CDsenders to MOXA Serial port extender 3 Fibre optic converters MOXA - SSI - CDreceiver - 4 CDsenders to NDC via BB or cell network (backup) 25 Pit EAMs - CDsender to NAM (all data) - SOH scream server 10/8/2015 Page 26

27 BB GSM Data transmission since Sep 2015 Central timing array Switch Guralp NAM - PPP service for communication to sites - central timing distribution - SOH server - CDreceiver - CD data streams ARCHH, ARCLP, ARCI, ARCMP - 4 CDsenders to MOXA Serial port extender MOXA - SSI - CDreceiver - CD data stream ARCES (authenticated) - 5 CDsenders to NDC via BB or cell network (backup) 3 Fibre optic converters 25 Pit EAMs - CDsender to MOXA (40Hz seismic data) - CDsender to NAM (all other data) - SOH scream server 10/8/2015 Page 27

28 ARCES-PS C BB instruments 1 3T HYB (360s) 24 3T HYB (120s) 150 channels (40Hz and 80Hz) 9 infrasound sensors (A+B ring) Central building: Data acquisition computers Power distribution system Communication equipment Central timing Communication: Optical fibre (intra-array) BB over satellite, GSM New seismic sensors, digitizers and central acquisition installed in 09/2014 Lightning protection, grounding for all pits done in 09/2015 Completion of modernization in 2016 (CRF renovation, new Power backup/ups, new pit covers, and revalidation) 8-Oct km diameter 25 3C BB sites + 9 IS sites since Sep km

29 Thank you 10/8/2015 Page 29

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31 10/8/2015 Page 31