Hiding the Decline: Part 1 &#8211; The Adventure Begins
<p>From the CRU code file osborn-tree6/briffa_sep98_d.pro , used to prepare a graph purported to be of Northern Hemisphere temperatures and reconstructions.</p>
<pre>
;
; Apply a VERY ARTIFICAL correction for decline!!
;
yrloc=[1400,findgen(19)*5.+1904]
valadj=[0.,0.,0.,0.,0.,-0.1,-0.25,-0.3,0.,- 0.1,0.3,0.8,1.2,1.7,2.5,2.6,2.6,$
2.6,2.6,2.6]*0.75 ; fudge factor
if n_elements(yrloc) ne n_elements(valadj) then message,â€™Oooops!â€™
;
yearlyadj=interpol(valadj,yrloc,timey)
</pre>
<p>This, people, is blatant data-cooking, with no pretense otherwise.  It flattens a period of warm temperatures in the  <s>1940s</s> 1930s &#8212; see those negative coefficients?  Then, later on, it applies a positive multiplier so you get a nice dramatic hockey stick at the end of the century.</p>
<p>All you apologists weakly protesting that this is research business as usual and there are plausible explanations for everything in the emails?  Sackcloth and ashes time for you.  This isn&#8217;t just a smoking gun, it&#8217;s a siege cannon with the barrel still hot.</p>
<p>UPDATE2: Now the data is 0.75 scaled.  I think I interpreted the yrloc entry incorrectly last time, introducing an off-by-one.  The 1400 point (same as the 1904) is omitted as it confuses gnuplot.  These are details; the basic hockey-stick shape is unaltered.</p>
<p><img src="http://esr.ibiblio.org/wp-content/uploads/2009/11/artifical2.png"/></p>
<p>UPDATE3: Graphic is tenmporily unavailable due to a server glitch.  I&#8217;m contacting the site admins about this.</p>
