Tim Ahern The FDSN and IRIS GSN and PASSCAL “Networks”

FDSN Backbone Network 200 stations currently Plans to increase in size to 300 Southern Hemisphere is underrepresented FDSN Archive for Continuous Data at the IRIS DMC

FDSN Network 201 stations

2,361 Stations in SE Asia

201 SE Asian Stations come in real time to the IRIS DMC

The IRIS Global Seismographic Network 156 Broadband Stations

GSN 156 Broadband stations 81 IRIS/USGS (IU) Stations 41 IRIS/IDA (II) Stations 10 IRIS/China (IC) Stations 9 USGS Caribbean (CU) Stations 9 AFTAC/IMS (IM) Stations 6 Affiliate Stations (AU, BK, CI, GT, MS) The composition of the IRIS GSN

The Bandwidth of State-of-the-Art Instrumentation

Real Time Data Transmission nearly realized

Geophysical Observatories

Working Closely with the CTBTO/IMS

Upgrading the GSN Data Loggers

Program for Array Seismic Studies of the Continental Lithosphere 5,631 PASSCAL Stations in 672 Experiments

Program for Array Seismic Studies of the Continental Lithosphere 1,071 PASSCAL Stations in SE Asia

PASSCALPolarFA Datalogger 3-channel Datalogger 1-channel Broadband Sensor (>=120s) Intermediate Period Sensor1426 Short-period sensor High-frequency geophone Accelerometer20 Multichannel System14 15 PASSCAL Equipment Inventory 6,775 channels of data acquisition

Types of Equipment Supported by PASSCAL Data Loggers RT Q330 Broadband Sensors Streckheisen STS Guralp CMG-3T 42 - Nanometrics Trillium Nanometrics Trillium 120 Intermediate Period Sensors 90 Guralp 40T 16 Nanometrics T-40 Short period sensors 100 Guralp 40T (1 sec) 170 Sercel L22 (2hz)

Experiment Support 17

Training, Docs & Web 18  All PIC Experiments Required to Attend Training  2-3 day intensive covering all aspects of deployment, data recovery, and archiving  Training continues in-field for all experiments that have PIC personnel field support  Documentation  Documentation frequently tailored to experiment.  Examples of field deployment and service sheets   Access to PIC inventory  Instrument specifications and comparisons  Request forms and policies  Instrument schedules  Experiment profiles  Software links

Field  Huddle Test  Access equipment health  Test recording parameters  Training  Provide in-field training for all participants  Review best practices  Logistics  Controlled Source  Start to finish  Deploy and/or man field center during deployment  Produce field archive of raw data  Create gathers if time permits  Passive Source  Deploy at least during the initial phase for continued training and best practice 19 Himalayan Seismotectonics, Nepal

Data Archiving 20