Building a ‘Hokey’ stick
Posted by Jeff Condon on October 12, 2008
If this is your first time here recently see this article Will the Real Hockey Stick Please Stand Up?
The first graph of this post is the final result after the 1209 series were magnified and averaged together. Vertical scale is SD units calibrated from 1850-1995. This is my first post which is based on R software.
The point of this post is just to see the types of data going into the latest hokey hockey stick and what shape the groups provide. If you look at all the graphs after the first one, you might see components which add up to the shape of the final graph. Also, you will notice shapes which you can’t find. The fact that you cannot find certain valleys and peaks means very clearly that individual proxies had substantial influence in creating historic trends.
Luterbacher instrument proxies with measured temp data.
Tree ring composite data possibly already HS sorted. Not too many series.
3001 – Conglomeration of marine sediments
4000 -Lake sediments
4001 Rainfall and isotope
5000 – Moisture and grape ripening records – for god’s sakes I bet grape ripening is linear with temperature.
6000 – Speleothum – Cave stalactite isotope data.
More cave speleothum data
7000 Isotope ratios in coral
7001 Coral growth (I think) two proxies only
Schweingruber latewood MXD data. I bet $30 this is our little ice age. What tweaks me about this one is the fact that the last 38 years are painted in upslope. (Fake data!) Without it these series don’t get accepted and I bet no little ice age.
Ice core isotope and precipitation data
Ice core isotope records
9000 – Tree ring width data. 76.7% of the 1209 series
Did you catch the proxy which was created from ripening grapes? Imagine converting that plot to temperature.