Temporal Characteristics of Heat Waves and Cold Spells and Their Links to Atmospheric Circulation in EURO-CORDEX RCMs

Table 5

Summer and winter mean lengths of day sequences within given circulation supertypes in the observed data and RCMs during 1980–2005.

	JJA												DJF
	Anticyclonic		Cyclonic		Southerly		Westerly		Northerly		Easterly		Anticyclonic		Cyclonic		Southerly		Westerly		Northerly		Easterly
ERA-INTERIM	2.66		1.72		1.71		2.56		1.99		2.97		3.12		1.69		2.38		4.16		1.72		2.55
Ensemble mean	3.19		2.07		1.83		3.18		2.44		3.71		3.07		1.99		2.70		6.06		2.19		2.75
Ensemble median	3.08		2.00		1.82		3.21		2.45		3.57		3.16		1.99		2.71		5.77		2.17		2.75
CCLM4_C_11	3.80		2.33		1.82		3.38		3.13		3.64		2.57		1.99		2.52		5.88		1.96		2.66
CCLM4_E_11	3.43		1.87		1.70		3.30		2.63		3.23		3.43		1.94		2.80		6.64		2.09		3.17
CCLM4_H_11	3.56		1.88		1.70		2.33		2.77		4.45		3.39		1.81		2.31		5.65		2.05		3.01
CCLM4_M_11	3.02		1.84		1.61		4.62		2.56		2.70		2.45		2.06		2.76		5.38		2.22		2.84
ALADIN53_C_11	3.02		2.47		2.11		2.27		2.49		4.85		2.82		1.91		2.58		5.71		1.82		2.47
ALADIN53_I_11	3.33		1.80		1.80		2.56		2.29		3.48		3.66		1.83		2.47		5.51		2.09		2.34
RACMO22E_I_11	3.08		1.88		1.78		3.19		2.46		3.15		3.52		1.85		2.66		5.77		2.17		2.90
RACMO22E_E_11	3.02		2.07		1.91		2.93		2.34		3.44		3.25		1.67		2.98		7.17		2.02		2.50
RACMO22E_H_11	3.95		2.23		2.01		3.59		2.52		3.81		3.48		1.80		2.72		6.13		2.12		2.51
RCA4_C_11	3.05		2.82		2.08		2.71		2.46		5.21		2.76		1.88		2.67		6.41		2.10		2.74
RCA4_I_11	3.12		2.02		1.85		3.42		2.10		3.21		3.16		2.12		2.50		5.71		2.38		2.84
RCA4_E_11	3.07		2.00		1.81		3.21		2.23		3.70		3.27		2.06		2.98		7.57		2.24		2.94
RCA4_H_11	3.12		2.13		1.82		2.65		2.38		4.43		3.49		1.89		2.84		6.32		2.35		2.93
RCA4_M_11	3.04		1.86		1.69		3.65		2.30		3.29		2.49		2.27		3.00		5.62		2.30		3.03
RCA4_C_44	2.78		2.43		2.02		3.50		2.45		3.94		2.32		2.10		2.35		4.99		2.05		2.38
RCA4_I_44	2.96		1.91		1.88		3.15		2.37		3.57		3.14		2.15		2.71		5.70		2.51		2.75
RCA4_E_44	3.08		1.94		1.70		3.27		2.29		3.02		3.04		2.11		2.70		7.22		2.17		2.66
RCA4_H_44	3.14		2.07		1.87		2.92		2.48		4.17		3.50		2.08		2.72		6.45		2.53		2.66
RCA4_M_44	3.06		1.82		1.66		3.81		2.20		3.19		2.55		2.25		3.02		5.23		2.46		2.94

∗, ∗∗ indicates that the mean length is significantly longer in an RCM than in the observed data according to the Wilcoxon–Mann–Whitney test at ().