MONTH EP NP PNA EATL/

WRUS

SCAND
JUL 2002 1.0 -1.0 --- --- ---
JUN 2002 0.6 0.3 --- --- ---
MAY 2002 0.3 --- -1.6 1.0 -1.1
APR 2002 0.9 0.0 -1.9 -0.8 0.9
MAR 2002 0.4 1.2 -2.1 1.2 -0.7
FEB 2002 0.6 --- -0.7 -1.0 -1.3
JAN 2002 0.5 --- -0.3 0.8 -0.7
DEC 2001 1.4 --- 0.3 0.8 0.2
NOV 2001 0.4 --- 0.1 -0.2 -1.4
OCT 2001 -0.5 --- -0.9 0.0 0.0
SEP 2001 --- --- 1.6 -0.6 0.9
AUG 2001 --- --- 0.7 --- -0.2
JUL 2001 0.5 -1.1 --- --- ---

Standardized amplitudes of selected Northern Hemisphere teleconnection patterns for the most recent thirteen months. Pattern names and abbreviations are: East Pacific pattern (EP); North Pacific pattern (NP); Pacific/ North American pattern (PNA); East Atlantic/ Western Russia pattern (EATL/ WRUS- called Eurasia-2 pattern by Barnston and Livezey, 1987, Mon. Wea. Rev., 6, 1083-1126); and Scandinavia pattern (SCAND- called Eurasia-1 pattern by Barnston and Livezey 1987). No value is plotted when a pattern does not appear as a leading mode in that month.