DART® Tsunameter Retrospective and Real-Time Data: A Reflection on 10 Years of Processing in Support of Tsunami Research and Operations
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In the early 1980s, the United States National Oceanic and Atmospheric Administration Pacific Marine Environmental Laboratory established the fundamentals of the contemporary tsunameter network deployed throughout the world oceans. The decades of technological and scientific advancements that followed led to a robust network that now provides real-time deep-ocean tsunami observations routinely incorporated into operational procedures of tsunami warning centers around the globe. All aspects of the network, from research to operations, to data archive and dissemination, are conducted collaboratively between the National Data Buoy Center, the Pacific Marine Environmental Laboratory, and the National Geophysical Data Center, with oversight by the National Weather Service. The National Data Buoy Center manages and conducts all operational network activities and distributes real-time data to the public. The Pacific Marine Environmental Laboratory provides the research component in support of modeling and network enhancements for improved forecasting capability. The National Geophysical Data Center is responsible for the processing, archiving, and distribution of all retrospective data and integrates DART® tsunameter data with the National Geophysical Data Center global historical tsunami database. The role each agency plays in collecting, processing, and disseminating observations of deep-ocean bottom pressure is presented along with brief descriptions of data processing procedures. Specific examples of challenges and the approaches taken to address these are discussed. National Geophysical Data Center newly developed and available tsunami event web pages are briefly described and demonstrated with processed data for both the Tohoku 11 March 2011 and the Haiti 12 January 2010 tsunami events.
KeywordsTsunami tsunami measurements bottom pressure recorder BPR deep-ocean assessment and reporting of tsunami DART tsunameter
The authors wish to acknowledge the partner agencies whose continued collaboration ensures the success of the United States' efforts to provide real-time tsunami warning to coastal communities during a tsunami event. NOAA’s two Tsunami Warning Centers, the National Ocean Service, the National Data Buoy Center, the Pacific Marine Environmental Laboratory, and the National Geophysical Data Center each provide critical expertise. We also thank Paul Whitmore with NOAA WC/ATWC and all anonymous reviewers for their thorough evaluation and constructive recommendations, all of which served to improve this manuscript.
- Cartwright, D.E., Spencer, R., Vassie, J.M., and Woodworth, P.L. (1988), The tides of the Atlantic Ocean, 60°N to 30°S, Phil. Trans. Roy. Soc., London, A32J, 513-563.Google Scholar
- Chadwick Jr., W.W., Butterfield, D.A., Embley, R.W., Meinig, C.S.S., Nooner, S., Zumberge, M., and Fox, C.G. (2002), Recent results from seafloor instruments at the NeMO Observatory, Axial Seamount, Juan de Fuca Ridge. Eos Trans. AGU 83 (Abstract T22A-1132).Google Scholar
- Dunbar, P.K., Stroker, K.J., Brocko, V.R., Varner, J.D., McLean, S.J., Taylor, L.A., Eakins, B.W., Carignan, K.S., and Warnken, R.R. (2008), Long-term tsunami data archive supports tsunami forecast, warning, research and mitigation, Pure Appl. Geophys. 165, 2275–2291.Google Scholar
- Eblé, M.C., and González, F.I. (1991), Deep-ocean bottom pressure measurements in the Northeast Pacific, J. Atmos. Ocean. Tech. 8(2), 221–233.Google Scholar
- Eblé, M.C., González, F.I., Mattens, D.M., and Milburn, D.M. (1989), Instrumentation, field operations, and data processing for PMEL deep ocean bottom pressure measurements. NOAA Tech. Memo. ERL PMEL-89, NTIS: PB90-114018, 71 pp.Google Scholar
- Eblé, M., Titov, V., Denbo, D., Moore, C., Mungov, G., and Bouchard, R. (2011). Signal-to-noise ratio and the isolation of the 11 March 2011 Tohoku tsunami in deep-ocean tsunameter records, OCEANS ‘11 MTS/IEEE KONA, http://www.oceans11mtsieeekona.org/.
- Emery, W.J., and Thomson, R.E. (2001), Data Analysis Methods in Physical Oceanography, 2nd and Revised Edition, (Elsevier, Amsterdam, 2001), 638 p.Google Scholar
- Filloux, J.H. (1970), Bourdon tube deep see tide gauges. In: Tsunamis in the Pacific Ocean, University Press, Honolulu, 223–238.Google Scholar
- Filloux, J H. (1971), Deep-sea tide observations from the Northeast Pacific. Deep-Sea Research 18, 275–284.Google Scholar
- Filloux, J.H. (1982), Tsunami recorded on the open ocean floor, Geophys. Res. Lett. 9, 25–28.Google Scholar
- Filloux, J.H. (1983), Pressure fluctuations on the open-ocean floor off the Gulf of California: tides, earthquakes and tsunamis. J. Phys. Oceanogr. 13(5), 783–796. Google Scholar
- Foreman, M.G.G. (1977, revised 2004). Manual for Tidal Heights Analysis and Prediction. Pacific Marine Science Report. 77–10. Institute of Ocean Sciences, Patricia Bay, 58 pp. http://www.pac.dfo-mpo.gc.ca/science/oceans/tidal-marees/index-eng.htm.
- Foreman, M.G.G., Cherniawsky, J., and Ballantyne, V.A. (2009), Versatile harmonic tidal analysis: Improvements and applications. J. Atmos. Oceanic Technol. 26, 806–817. doi: 10.1175/2008JTECHO615.1.
- González, F.I., Milburn, H.M., Bernard, E.N., and Newman J. (1998), Deep-ocean assessment and reporting of tsunamis (DART): Brief overview and status report. Proceedings of the International Workshop on Tsunami Disaster Mitigation, Tokyo, Japan, 19–22 January 1998, 118–129.Google Scholar
- González, F.I., Bernard, E.N., Meinig, E., Eblé, M., Mofjeld, H.O., and Stalin S. (2005), The THMP tsunameter network, Natural Hazards 35(1), Special Issue, U.S. National Tsunami Hazard Mitigation Program, 25–39.Google Scholar
- Goring, D.G., and Nikora, V.I. (2002), Despiking acoustic Doppler velocimeter data, J. Hydraul. Eng. 128(1), 117–126.Google Scholar
- Harris, M.J., and Tucker, M.J. (1963), A pressure recorder for measuring sea waves. Instrument Practice 17, 1055–1059.Google Scholar
- Irish, J.D., and Snodgrass, F.E. (1972), Quartz crystals as multipurpose oceanographic sensors. 1. Pressure. Deep-Sea Res. 19(2), 165–169.Google Scholar
- Joseph, A. (2011), Tsunamis: Detection, Monitoring, and Early-Warning Technologies. Academic Press, 448 p.Google Scholar
- Kulikov, E.A., and Rabinovich, A.B. (1983), Radiation tides in the ocean and atmosphere, Trans. (Doklady) USSR Academy of Sciences, Earth Science Sections, 271 (5), 221–225.Google Scholar
- Kulikov, E.A., Rabinovich, A.B., Spirin, A.I., Poole, S.L., and Soloviev, S.L. (1983), Measurement of tsunamis in the open ocean, Marine Geodesy 6 (3–4), 311–329.Google Scholar
- Lefcort, M.D. (1968), Vibrating wire pressure transducer technology, J. Atmos. Oceanic Technol. 2, 37–44.Google Scholar
- Mofjeld, H. (1997), Tsunami detection algorithm. (Not published paper, available at http://nctr.pmel.noaa.gov/tda/documentation.html).
- Mofjeld, H.O. (2009), Tsunami measurements. In The Sea, Volume 15: Tsunamis (eds. A. Robinson and E. Bernard), (Harvard University Press, Cambridge, MA, 2009) pp. 201–235.Google Scholar
- Mofjeld, H.O., and Wimbush, M. (1977), Bottom pressure observations in the Gulf of Mexico and Caribbean Sea, Deep-Sea Res. 24, 987–1004.Google Scholar
- Mofjeld, H.O., Whitmore, P.M., Eblé, M.C., González, F.I., and Newman, J.C. (2001), Seismic-wave contributions to bottom pressure fluctuations in the North Pacific-Implications for the DART Tsunami Array. In Proc. Intern. Tsunami Symposium 2001, Session S-10, Seattle, WA, 7–10 August 2001, 633–641.Google Scholar
- Parker, B. (2007), Tidal Analysis and Prediction, NOAA Special Publication NOS CO-OPS 3; 378 p.Google Scholar
- Rabinovich, A.B. (1993), Long Ocean Gravity Waves, Trapping, Resonance and Leaking. Gidrometeoizdat, Sankt-Petersburg (in Russian), 325 p.Google Scholar
- Rabinovich, A.B., Stroker, K., Thomson, R., and Davis E. (2011), DARTs and CORK in Cascadia Basin: High-resolution observations of the 2004 Sumatra tsunami in the northeast Pacific, Geophys. Res. Lett. 38, L08607, 5 pp., doi: 10.1029/2011GL047026.
- Snodgrass F.E. (1968), Deep-sea instrument capsule. Science 162, 78–87.Google Scholar
- Snodgrass, F., Brown, W., and Munk, W. (1975), MODE: IGPP Measurements of Bottom Pressure and Temperature. J. Phys. Oceanogr. 5(1), 63–74.Google Scholar
- Soloviev, S.L., Popov, I., Miller, G.P., and Harvey, R.R. (1976), Preliminary Results of the First Soviet-American Tsunami Expedition. Hawaii Institute of Geophysics, NOAA-Y -TRE-162, HIS-76-8, 74 p.Google Scholar
- Torrence, C., and Compo, G.P. (1998), A Practical Guide to Wavelet Analysis. Bull. Amer. Meteor. Soc. 79, 61–78.Google Scholar
- UNESCO (1975), An intercomparison of open sea tidal pressure sensors. Techn. Papers in Marine Sciences, No. 21, 67 pp.Google Scholar
- Vitousek, M.J., and G. Miller, G. (1970), An instrumentation system for measuring tsunamis in the deep ocean, In Tsunamis in the Pacific Ocean, (ed. W.M. Adams), East-West Center Press, Honolulu, HI, 1970, Ch. 16, pp 239–252.Google Scholar
- Warren, B.A., and Wunsch, C. (1981), Evolution of Physical Oceanography. The MIT Press, 623 p.Google Scholar
- Webb, S.C. (1998), Broadband seismology and noise under the ocean. Rev. of Geophys., 36 (1), 105–142.Google Scholar
- Webb, S.C., Zhang, X., and Crawford, W. (1991), Infragravity waves in the deep ocean. J. Geophys. Res. 9 (6), 2723–2736.Google Scholar
- Yefimov, V.V., Kulikov, Y.A., Rabinovich, A.B., and Fine I.V. (1985), Ocean Waves in Boundary Regions. Gidrometeoizdat, Leningrad (in Russian), 280 p.Google Scholar