Seismic Instrumentation Latency and Associated Design Trade-offs in Earthquake Early Warning Systems
Abstract
Low latency is a key contributor to the success of an Earthquake Early Warning (EEW) system. There are several points where delay is introduced between the instant in time that a digitizer produces a set of samples across its analog sensor channel inputs and the point at which the corresponding data reaches its destination for EEW processing. These points of delay arise out of software, mathematical, and networking as well as physical constraints imposed upon the digitizer and associated communication systems.
We examine factors associated specifically with seismic instrumentation selection and configuration, and their practical impact on real-world EEW performance. System designers and network operators must be fully aware of latency and its contributors in order to make the right configuration choices when commissioning EEW systems to ensure the lowest possible latency without compromising the accuracy of the early warning data product.- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2020
- Bibcode:
- 2020AGUFMS046.0012L
- Keywords:
-
- 7299 General or miscellaneous;
- SEISMOLOGY