Geoscience Reference
In-Depth Information
bitmap
FIGURE 4.2
Sea level data from Midway Island for a short time period encompassing the arrival of the
November 15, 2006, Kuril Island tsunami. One-minute samples are shown in red; two different gauges
providing 6-minute samples are shown in green and orange. Note that the 6-minute samples completely
miss the highest amplitude component (the third crest and trough) of the tsunami. SOURCE: http://
co-ops.nos.noaa.gov/tsunami/; NOAA.
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establishment of a system of surveying benchmarks;
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locating gauges in protected areas that are responsive to tsunamis, such as wide-
mouthed harbors (sustainability and iltering); and
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standard sampling of 1-minute averages and a continuous 15-minute transmission
cycle via the World Meteorological Organization's (WMO) Global Telecommunications
System (GTS) to the Japan Meteorological Agency (JMA), PTWC, and other appropri-
ate warning centers/watch providers.
NOS Sea Level Stations for Tsunami Detection
In the several decades leading up to 2004, NOAA's NOS Center for Operational Oceano-
graphic Products and Services (CO-OPS; http://tidesandcurrents.noaa.gov/) operated long-
