S33C-2801
U.S. Tsunami Information technology (TIM) Modernization:Developing a Maintainable and Extensible Open Source Earthquake and Tsunami Warning System

Wednesday, 16 December 2015
Poster Hall (Moscone South)
Sidney B Hellman1, Stefan Lisowski2, Ben Baker2, Mike Hagerty2, Anthony Lomax3, Jeffrey M Leifer4, Dylan A Thies4, Alexander Schnackenberg4 and Joseph Barrows4, (1)Instrumental Software Tech Inc, Saratoga Springs, NY, United States, (2)Instrumental Software Technologies, Inc., Saratoga Springs, NY, United States, (3)ALomax Scientific, Mouans-Sartoux, France, (4)Instrumental Software Technologies, Inc. (ISTI), Saratoga Springs, NY, United States
Abstract:
Tsunami Information technology Modernization (TIM) is a National Oceanic and Atmospheric Administration (NOAA) project to update and standardize the earthquake and tsunami monitoring systems currently employed at the U.S. Tsunami Warning Centers in Ewa Beach, Hawaii (PTWC) and Palmer, Alaska (NTWC). While this project was funded by NOAA to solve a specific problem, the requirements that the delivered system be both open source and easily maintainable have resulted in the creation of a variety of open source (OS) software packages. The open source software is now complete and this is a presentation of the OS Software that has been funded by NOAA for benefit of the entire seismic community.

The design architecture comprises three distinct components: (1) The user interface, (2) The real-time data acquisition and processing system and (3) The scientific algorithm library.

The system follows a modular design with loose coupling between components.

We now identify the major project constituents.

The user interface, CAVE, is written in Java and is compatible with the existing National Weather Service (NWS) open source graphical system AWIPS.

The selected real-time seismic acquisition and processing system is open source SeisComp3 (sc3).

The seismic library (libseismic) contains numerous custom written and wrapped open source seismic algorithms (e.g., ML/mb/Ms/Mwp, mantle magnitude (Mm), w-phase moment tensor, bodywave moment tensor, finite-fault inversion, array processing).

The seismic library is organized in a way (function naming and usage) that will be familiar to users of Matlab.

The seismic library extends sc3 so that it can be called by the real-time system, but it can also be driven and tested outside of sc3, for example, by ObsPy or Earthworm.

To unify the three principal components we have developed a flexible and lightweight communication layer called SeismoEdex.

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