¿por que se corrige entonces con +2,5º?
Esa pregunta me ha recordado el codigo de briffa con el "very artificial correction" y "fudge factor".
Y me he preguntado, que pasa si aplicamos una a la otra?
et Voila, como por arte de magia aparece ese resultado.
Se parece sospechosamente a la temperatura corregida de Darwin.
El codigo IDL que genera esa grafica:
;temperature series from
http://data.giss.nasa.gov/work/gistemp/STATIONS//tmp.501941200000.0.1/station.txtt=[28.49,28.62,27.96,27.96,28.5,27.65,28.52,28.86,28.13,27.56,29,28.49,27.47,27.73,27.53,28.71,27.75,27.7,
28.63,27.84,28.01,28.33,27.55,28.28,28.98,28.08,28.17,28.24,28.19,27.78,28.2,27.45,27.89,28.59,28.46,28.03,
27.7,27.68,28.63,28.23,27.78,27.58,28.38,27.35,28.48,28.23,28.38,27.72,28.03,28.41,28.21,28.04,27.73,27.87,
28.5,27.94,28,27.4,27.21,26.85,27.78,26.84,26.87,27.39,26.96,27.68,27.64,26.83,27.09,27.51,27.77,27.41,27.58,
27.91,27.46,27.48,27.88,27.4,27.1,27.08,27.73,26.91,27.57,27.03,27.48,26.95,27.45,27.76,28.03,27.5,27.56,28.37,
27.29,27.56,27.14,27.16,27.94,28,27.95,28.02,27.32,27.88,27.59,27.64,28.12,28.05,28.24,27.61,28.11,27.58]
;adjustment array and fudge factor from briffa_Sep98_d.pro
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
;array of years correponding to the temperature array above
yy=findgen(111)+1880
; interpolate artificial correction to corresponding array years
yearlyadj=interpol(valadj,yrloc,yy)
; add the artificial correction to raw temperature data and find anomalies by substracting mean value from the array
tad=t+yearlyadj-mean(tad)
; plot the results
plot, yy, tad,psym=4, background=’ffffff’x,color=’000000′x
oplot, yy, tad,psym=4, color=’0000ff’x
oplot, yy, tad,psym=4, color=’0000ff’x,thick=1.5
oplot, yy, tad,psym=4, color=’0000ff’x,thick=2
oplot, yy, tad, color=’0000ff’x,thick=2