72
Chapter 4: The Instrumental Data Record
Figure 4.9: Model versus observed pattern correlations. Pattern correlations
are calculated from grid point data using 71 overlapping decades (from 191019 to 1980-89) relative to a fixed reference decade (1900-09). Results are
plot ted on the first year of each decade.
0.5
OSU
2: 0.0
a:
-0.5 ~--~~--r---~~--r----+----+-------~0 . 5
LLNL
~--~~----------------------~~----~O . O~
0 .5
~ _ _ _ _ r-_____ +-______ +-______ ~-0 . 5
UKMO
=CE 0.0 ~--_'-------=:;_...:l:---==------=..:~-,......,c.:"'-"----4
-0 .
5~ ______ r-~ ____ -+-______ +-______ ----4
0.6
0.5
..--___ - r -____ -+-_______ +-______ ~-0 . 5
~ 0.0 t----0.5 I....-......... _ _ .......I.. _ _ "'---......... ....L.... _ _ _ _ _ _ _ L...-......... _ _ _ ~
1900
1920
1940
1960
1980
TIM E (YEARS)