Clouds and Surface radiation correlation, page-9

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    "
    Another interesting tidbit.

    What is the switch that just tells the atmosphere or the pacific ocean to stabilise the atmosphere

    Looking here we can see that the Pacific tropic zone had a steady cloud cover from data until 1907/8 ish and then from 1993 to 2003.
    This staerdy state is not the NORM though. WHAT IS THE SWITCH that does this

    source is University of East ANglia via KNMI. http://climexp.knmi.nl/get_index.cgi
    and http://climexp.knmi.nl/select.cgi?id=someone@somewhere&field=cru_cld
    This is really bizarre. Can anyone explain this phenomenon?


    View attachment 97170
    1900's"

    First up, keep in mind (not just you, anybody reading) that these are anomaly data. A zero anomaly simply means a perfectly average year - not that there's no cloud cover.

    Second, the two time periods you point out simply scream "artifact" to me. The early 1900s one is easy enough to explain - there were simply not enough observations back then:

    image.jpg

    No idea why the 1990s looks that way, but this independent analysis of the same region doesn't show anything like the same behaviour: http://www.atmos.washington.edu/~rmeast/Eastman_et_al_2011.pdf. See figures 5 and 6.
 
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