USNSN/ANSS Real TimeData Flow at the NEIC

Topics• NEIC Real-time Data System • Networks Contributed to NEIC in Real-time• Internal Flow of Real-time Data• Distribution to Various Recipients

RSN ATWCPTWC

Earthworm

RSN

Waveserver

VMS Cluster NEIS

ATWCPTWC

ISNGSN USNSNRSN

IRIS DMS

Research

NEIC Real-time Data System

QA/QC

ASLGSN

EW import/export VDL

AutoDRM

VSAT

Topics• NEIC Real-time Data System • Networks Contributed to NEIC in Real-time• Internal Flow of Real-time Data• Distribution to Various Recipients

~200 Broadbands ~3 Gbytes/day.

Networks Contributed to NEIC in Real-time

MEDNETGEOFONKNETIMSCDSNGTSNGSN

SLUAEICBKYSNLWestonBILIKINLLNL

ATWCPTWCAVONMTUSBRSLUMenlo

CERIButteTriNetUUSSUNRLDEOMIT

Contributors via Virtual Data Logger

Contributors via Earthworm

Contributors via Satellite System 65 USNSN Broadband, 7 ASL/GSN

Earthworm: Real-time Data Exchange

Channels IN:300 Broadband and Short periodalso strong motion

Topics• NEIC Real-time Data System • Networks Contributed to NEIC in Real-time• Internal Flow of Real-time Data– NEIS– QA/QC Products– Research

• Distribution to Various Recipients

Earthworm

RSN

Waveserver

VMS Cluster NEIS

ATWCPTWC

ISNGSN USNSNRSN

IRIS DMS

Research

NEIC Real-time Data System: Internal

QA/QC

ASLGSN

EW import/export VDL

AutoDRM

VSAT

NEIS Processing and ProductsAssociation, location,and magnitude estimation

Quick review

NEIS Processing and ProductsMoment tensors

Record sections

Recent earthquake maps and waveforms

NEIS Processing and ProductsShakemap

Earthworm

RSN

Waveserver

VMS Cluster NEIS

ATWCPTWC

ISNGSN USNSNRSN

IRIS DMS

Research

NEIC Real-time Data System: Internal

QA/QC

ASLGSN

EW import/export VDL

AutoDRM

VSAT

NEIC Internal: QA/QCHeli Pages Latency Monitor

NEIC Internal: QA/QCReal-time Probabilistic Ambient Noise Estimates

Numerous artifacts are observed and identifiable. Strong signals are generated from instrumentation and telemetry issues such as calibration pulses, automatic mass re-centering and dropped packets.

10192 individual PSDs, binned in 1/8 octave intervals, are used to construct a Seismic Noise Probability Density Function for JFWS BHZ, shown to the right. 09/2000-02/2003.

Calibration

Dropped Packets

Mass re-center

Sensor Problem

NEIC Internal: QA/QCReal-time Probabilistic Ambient Noise Estimates

Significant noise at 0.1s (10Hz) due to the proximity to a road.

2370 individual PSDs, binned in 1/8 octave intervals, are used to construct a Seismic Noise Probability Density Function for HLID BHZ, shown to the right.

Earthworm

RSN

Waveserver

VMS Cluster NEIS

ATWCPTWC

ISNGSN USNSNRSN

IRIS DMS

Research

NEIC Real-time Data System: Internal

QA/QC

ASLGSN

EW import/export VDL

AutoDRM

VSAT

NEIC Operations Focused Research

Improve STN

Determine arrival slowness

Increase pick accuracy

Improve phase Ids

Lower detection threshold

Improve locations

Real-time Array Processing

P. Earle

NEIC Operations Focused Research

National Hazard Map

Crustal Attenuation Studies

Pn Lg

Wesson, McNamara, Benz, Frankel

Topics• NEIC Real-time Data System • Networks Contributed to NEIC in Real-time• Internal Use of Real-time Data• Distribution to Various Recipients

Earthworm

RSN

Waveserver

VMS Cluster NEIS

ATWCPTWC

ISNGSN USNSNRSN

IRIS DMS

Research

NEIC Real-time Data System: Out Bound

QA/QC

ASLGSN

EW import/export VDL

AutoDRM

VSAT

Recipients of Real-time Dataearthworm import/export

Regional Seismic Networksfill in azimuthal gapsadd broadband recordings

Alaska and Pacific Tsunami Warning Centersimprove coverage and warning

Earthworm

RSN

Waveserver

VMS Cluster NEIS

ATWCPTWC

ISNGSN USNSNRSN

IRIS DMS

Research

NEIC Real-time Data System: Out Bound

QA/QC

ASLGSN

EW import/export VDL

AutoDRM

VSAT

Recipients of Real-time Data: IRIS DMSdedicated frame-relay (8 min. delay)

BUD Real-time data archive March 2002 to present

alsoUSNSN historic data archive

1991 to 2002