Geoscience Reference
In-Depth Information
bitmap
FIGURE 4.4
Map of the coastal sea level stations in the Paciic basin that provided sea level data at
suficient temporal resolution and quality for use in the PTWC's tsunami detection activities in 2008.
Color codes indicate the authorities responsible for gauge maintenance. U.S. authorities include PTWC,
WC/ATWC, NOS, and UHSLC. Non-U.S. authorities include the following: Centre Polynésien de Prévention
des Tsunamis (CPPT; France); Servicio Hidrográico y Oceanográico de la Armada de Chile (SHOA); Japan
Meteorological Agency (JMA); ROSHYDROMET (RHM; Russia); and National Tidal Facility (NTF; Australia).
The positions of the original six DART buoys (yellow triangles) existing in 2005 before the enactment of
P.L. 109-424 are also displayed. SOURCE: Weinstein, 2008; Paciic Tsunami Warning Center, NOAA.
At the current time, CO-OPS operates tide stations on all U.S. coasts in support of tsunami
warning. Upgraded tide stations are equipped with new hardware and software to enable
the collection and dissemination of 1-minute water level sample data. The TWCs can receive
this data in near-real time either via Geostationary Operational Environmental Sattelites
(GOES) over the National Weather Service Telecommunication Gateway (NWSTG) or via the
Tsunamis Stations' website (http://tidesandcurrents.noaa.gov/tsunami/). Although near-
real-time data are not subjected to the National Ocean Service's quality control or quality
assurance procedures and do not meet the criteria and standards of oficial National Ocean
Service data, the stringent maintenance procedures for the NWLON stations maximize the
