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unami Warning system PowerPoint Presentation
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unami Warning system

unami Warning system

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unami Warning system

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    monitoring local/regional seismicity (north-eastern Caribbean; Sombrero seismic zone) monitoring volcanic activity (The Quill, Mt. Scenery) contributing to the Caribean Tsunami Warning system NA Netherlands Antilles Seismic Network (since 2006) KNMI (Netherlands Meteorological Institute) MDNAA (Meteorological Service of the Netherlands Antilles and Aruba) USGS St. Eustatius St. Maarten Saba North oil terminal last eruption ~ 100 - 400 AD last eruption ~ 1640 pyroclastic flows Streckeisen STS-2 broad-band sensor UPS - local support, but limited technical knowledge - air conditioned rooms - automatic processing SeisComP3 - manual review SeismicHandler SABA SEUS SMRT Real-Time seismic stations in the Caribbean region collected by KNMI / MDNAA using SC3 100 Hz 40 Hz minimum phase filter, causal linear phase filter, acausal Willard interface Quanterra Q330 filtering scheme causal: no ringing, reliable onset picking, waveform distortion acausal: possible ringing, no waveform distortion ring buffer fifos high priority thread Linux RT-Linux DAC polling & plot network (SeedLink) socket ring buffer data handler notifier log-handler 40 Hz data dt = 0.025 sec data errors drum recorder http://www.realtimelinuxfoundation.org/ http://www.rtlinuxfree.com/ http://www.linux-real-time.com/