Accleration Redux…

…The Ocean Heat Story.

David Stockwell has become interested in determining whether there is any acceleration of ocean heat content.

This is a preliminary look at the data before actually testing the notion of ongoing accleration of ocean heat content rise.

Climate Explorer has NODC data:

http://climexp.knmi.nl/data/inodc_heat700_0-360E_-90-90N_na.txt

Now, I’m not sure I calculated these right but here are the 144 month slopes:

I notice that the recent rates of change are much higher than those befor about 1976-the Great Pacific Climate Shift-when the world and oceans were cooling. But after that, the trends at the begining of that period and the end are very similar-in fact, the recent ones are lower. Now I think you can see why I like to plot data this way-it reveals things about the data that niave fits with polynomials do not. I allows us to say not merely “is there an increase in the rate of change?” but precisely when any change occured. Based on this I so far doubt that century scale data would show any signficant accleration.

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3 Responses to “Accleration Redux…”

  1. KevinM Says:

    Please label the chart and its axes, with units.
    THanks for your blog, it is a good read.

  2. timetochooseagain Says:

    Hi, sorry about the lack of labels. I just kind of threw this together to get some idea what the data look like. I’ll put up a clearer one later.

  3. What exactly is “acceleration”? « Hypothesis Testing Says:

    […] more than adequately demonstrates. But what about claims of acceleration in Ocean Heat Content, for example? Well, looking back at the data from that post (undoubtedly an updated analysis would look […]

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