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CCD thermograph projects



Catalina Conservancy Divers have maintained an array of underwater thermographs at various sites and depths around the island since 1992. This data set is unique in Southern California, providing continuous, hourly samples at multiple depths for multiple years.


The analysis of the CCD data has been organized into 4 phases. The first is a description of the largest temperature variations, including seasonal warming and internal tidal waves. The second and third phase analyze the physics of these systematic variations.


The final phase will survey the data for variations of intermediate frequency, i.e., those with time scales of weeks to months.



phase 1



Description of the temperature variation.




Catalina Temperatures

phase 2



Analysis of the annual variation.




Annual Temperature Variation

phase 3



Analysis of internal tides in the SCB.




Internal Waves at Two Harbours

phase 4



Temperature variation of intermediate frequency.




Example Upwellings

sTATUS: THE first three phases have been completed and the fourth is awaiting resources.




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