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Web products: Recent Observed Page

On this page, there are a number of products summarizing the latest readings for all of CDIP's currently active stations. There are two general classes of products available: 9-band products and parameter products.

The parameter and 9-band products differ in how they measure the peak period (Tp) and peak direction (Dp) of a station's wave data. (Temperatures and wave heights (Hs) are identical in the parameter and 9-band products.) The basic difference is that while the 9-band processing divides all the wave energy for a station into nine broad bands, the parameter products divide the energy into many - generally 64 or 128 - small bands. As a result, the 9-band values give a broader, more general peak value, which the parameter products pick up finer, more subtle peaks in the data.

For more discussion of Tp, Dp, and their different measures, see Question 2 of our General FAQ.
  • Summary table, 9-band:
    Gives the latest Hs, 9-band Tp, 9-band Dp, and SST readings for all stations. If a station's data is more than 3 hours old, it is given in red. If a station has not updated in the past 24 hours, it is not included in the table.

  • Summary table, parameter:
    Identical to the 9-band table, except that the Tp and Dp values are taken from the parameter processing, not the 9-band processing.

  • Summary map, Southern California 9-Band:
    A map covering Southern California from Morro Bay to the Mexican border. All stations with directional wave information are depicted with wave vectors. The magnitude (length) of the vector is proportional to wave height, the direction of the vector corresponds to the 9-band Dp, and the color of the vector corresponds to the 9-band Tp. Stations with data older than 3 hours are shown in white, but do not have a vector drawn for them.

  • Summary map, Southern California Parameters:
    Identical to the 9-band map, except that the Tp and Dp values are taken from the parameter processing, not the 9-band processing.

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