1. STATUS of the International Data Center and International Monitoring System Network of the PTS Florian Haslinger IMS Seismic Monitoring Section Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization Provisional Technical Secretariat Vienna International Centre P.O. Box 1200 A-1400 Vienna AUSTRIA Florian.Haslinger@ctbto.org

2. IMS/SM June 2002 Status of the IDC Historic Background and Future

3. IMS/SM June 2002 IDC’s Main Achievements The commissioning of the IDC is in phase 5a, Preparation for Full-Scale Testing of the IDC. The IDC provides the States Signatories with access to IMS Data and IDC Products and Services since February 2000. Established an integrated office and scientific computing network to support States Signatories and the entire PTS. Procured the mass data storage and the authentication key management systems. Received, installed, tested and validated Release 2 and 3 software, thus becoming capable of collecting and processing data from about 100 stations. 1999 saw the GCI grow from a concept to implementation. With the installation of the four, now five, VSAT hubs along with the terrestrial links to the IDC in Vienna, global satellite coverage has been established. IDC Training Programme continued and completed third set of NDC managerial and technical training course in 2001.

4. IMS/SM June 2002 NDC Software Models available for State Signatories Option 3 Mini IDC Option 2 NDC-in-a-Box Option 1 Browser  Display data and products  Download data and products  No analysis  Cost/NDC: US$3-8K  Staff/NDC: 1  Option 1+  Limited detection and location  Could add national data  Cost/NDC: US$ 8-26K  Staff/NDC: 2-3  Option 2+  IDC-like data acquisition and forwarding  IDC-like processing and analysis  IDC-like data management system  Cost/NDC: US$ 500-10,000K  Staff/NDC: 10-1000

5. IMS/SM June 2002 21 February 2000 - 31 August 2001 Requests for Technical Assistance - 797 Continuous Data Forwarding: 37 stations Products by Subscription - 265,129 IDC Secure Web Sessions - 11,007 Satisfied AutoDRM Requests - 93,799 85 IDC Tours/ ~ 1,000 visitors Services to States Signatories IDCSERVICESIDCSERVICES NDC-in-a-box (GEOTOOL) software distributed to 40 States Signatories ~1 terabyte of data and products requested and exported 53 States Signatories participating A total of 392 Authorized Users

6. IMS/SM June 2002 IDC Calibration Programme Objectives Improve S/H/I locations Reduce bias and uncertainties 90% ellipses < 1000 km 2 Approach Calibrated T-Ts starting with Pn, Pg, Sn, Lg Source-Specific and Slowness-Azimuth Station Corrections Use Ground Truth events, coupled with hybrid empirical and 3-D model based approach Global effort guided by international group of experts (1999, 2000, 2001 meetings in Oslo) IDC Programme, Phase 1: Started in 2000; 8 contracts for Europe, Asia and Australia

7. IMS/SM June 2002 Initial Coverage for Calibration Programme Phase 1 RED: IDC Programme BLUE: PIDC provided corrections

8. IMS/SM June 2002 North America - Development of SSSCs for the IDC (Ryaboy, Baumgardt, Bobrov, Dainty, 2001) Events Relocation with SSSCs based on a 3-D model - Only IMS stations used - GT0 / GT2 events - Calibrated regional phases - Uncalibrated teleseismic phases * Median mislocation 4 - 7 km * Median error ellipse < 1000 km 2 * 85 - 100% epicenters within ellipses

9. IMS/SM June 2002 IMS Status of Work: Primary Seismic Network

10. IMS/SM June 2002 IMS Status of Work: Hydroacoustic Network

11. IMS/SM June 2002 IMS Status of Work: Infrasound Network

12. IMS/SM June 2002 IMS Status of Work: Radionuclide Network

13. IMS/SM June 2002 IMS Status of Work: Auxiliary Seismic Network

14. IMS/SM June 2002 IMS Standard Station Interface

15. IMS/SM June 2002 Installed at the following stations (as of June, 2002) - PS21 Tehran, Iran (certified) - AS026, Vranov, Czech Republic - AS036, Anogia, Greece - AS050, Valguarnera, Italy - AS069, Rata Peaks, New Zealand - AS071, Urewera, New Zealand - AS081, Muntele Rosu, Romania - AS109 Yreka, California, U.S. - AS119, Lusaka, Zambia expected to be installed at more than 45 IMS seismic stations IMS Standard Station Interface

16. IMS/SM June 2002 IMS Standard Station Interface Installations AS119 LSZ AS109 YBH

17. IMS/SM June 2002 IMS Standard Station Interface

18. IMS/SM June 2002 Availability of IMS data to the Scientific Community phase arrival data was provided to the ISC no new developments on opening access to IMS data Shared use of the GCI testing of various technical options under way no final decision yet