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2009 Tidal Current Predictions NOTE: NOAA's Center for Operational Oceanographic Products and Services
(CO-OPS) has created a supplemental tidal current publication for the
marine navigation community of Cook Inlet, Alaska for the last quarter
of 2008 and all of 2009. The tidal current predictions in this
publication are a reproduction of data that is published in the
2009 Tidal Current Tables, with the addition of two new stations near
Nikiski. These two new stations, Tesoro Pier and Unocal Pier, S of.
will
be published in the 2010 Tidal Current Tables. Data collected at the
two new sites in summer 2008 were gathered in response to user requests
to provide more representative current velocity predictions aiding in
the safe docking of large ships at these piers.
In this supplemental publication of the Tidal Current Tables, Tesoro
Pier is published as a Table 1 station to provide daily predictions at
this critical location. The Forelands serves as the primary reference
station for the Table 2 secondary stations in central Cook Inlet.
Unocal Pier, S of. appears in Table 2 as a secondary station referenced
to The Forelands. These updates provide improved tidal current
predictions for safe marine navigation within central Cook Inlet.
This system will allow you to obtain tidal current predictions computed by CO-OPS for more than 2,700 tidal current locations along the U.S. coastline. The publication of full daily predictions is limited to a select number of "reference stations." The remaining stations are referred to as "subordinate stations." Tidal predictions for subordinate stations are be obtained by applying specific differences to the times and speeds of the predicted tidal currents for the specified reference stations. These pages provide a listing of the 2,700 plus reference stations and subordinate stations. Selecting the "predictions" link beside a station listing will provide tidal current predictions for the location with the differences already applied. Unlike tide stations, which are normally located along the shoreline, most tidal current stations are located offshore in channels, rivers, and bays. Tidal current stations are often named for the channel, river, or bay in which they are located or for a nearby navigational reference point. A map or some personal knowledge of the area may be necessary to help identify stations in the area you are interested in. The list of subordinate stations has been broken down into states and other areas where tidal current stations are located. Each state is further broken down into regions. Each region presents a list of the tidal current stations in the area. The stations are listed geographically; thus, stations that are near each other along the shoreline appear together in the listing. This assists the user in locating a station of interest. Bookmarks may be created to the daily predictions for specific stations using the URL listed when the predictions are displayed. However, that link will only provide access to the predictions for the year available when the bookmark was created. Each successive year of predictions will use a different URL address, and thus any bookmarks must be updated to access each new year of predictions. Current table changes from 2008 to 2009 |
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