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Underway Data MapWelcome to the Underway Data home page.  Here, you will find processed data, data plots, raw data, metadata and notes from the Underway Data component of CalCOFI.  CalCOFI aims to continuously collect surface oceanographic and meteorological data on all CalCOFI cruises.  While all available data is accessible on a per cruise basis, it is only surface temperature, salinity, and chlorophyll concentration that are actually processed into a final data product.  In many cases, faulty data collection may have resulted in questionable and incomplete data sets.  In an attempt to make Underway Data as useful as possible, detailed notes accompany each cruise in order to clarify and explain data shortcomings and workarounds.  If data was not collected, or was uncorrectable, it is labeled as unavailable.Some examples of data that may be available are:


Ship information:

  • Ship speed
  • Ship heading
  • Ship position


  • Wind speed
  • Wind direction
  • Relative humidity
  • Barometric pressure
  • Air temperature
  • PAR


  • Surface temperature
  • Salinity
  • Fluorometery
  • Speed of sound


Underway Data Pages:

Annual data pages can be found Underway Data.

Additional Underway Data Information:

More information about Ship systems and instrumentation, processing methods, etc. can be found here.


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