Advances in Meteorology

Research Article

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

Table 4

Correlation coefficients between seasonal numbers of days within given circulation supertypes and seasonal numbers of days in HWs/CSPs for observed data and individual RCM simulations.
 HWs (JJA)CSPs (DJF)
AnticyclonicCyclonicSoutherlyWesterlyNortherlyEasterlyAnticyclonicCyclonicSoutherlyWesterlyNortherlyEasterly
E-OBS_44      −0.35  0.27      −0.35  0.40
E-OBS_22      −0.35  0.27      −0.36  0.41
Ensemble mean                  −0.402  0.616
Ensemble median      −0.300           −0.400  0.600
CCLM4_C_110.35−0.42  −0.25          −0.51  0.80
CCLM4_E_11      −0.34    −0.26     −0.46  0.60
CCLM4_H_11          0.34     0.44−0.31  0.44
CCLM4_M_11      −0.40  0.73      −0.42  0.71
ALADIN53_C_11      −0.52  0.36      −0.42  0.55
ALADIN53_I_11      −0.58  0.65      −0.40  0.61
RACMO22E_I_110.52    −0.38  0.52−0.34    −0.35  0.59
RACMO22E_E_11    0.38 −0.20   0.20       −0.33  0.58
RACMO22E_H_110.44                −0.31  0.62
RCA4_C_11      −0.31 −0.44        −0.54  0.71
RCA4_I_110.65−0.63  −0.30 −0.50        −0.43  0.67
RCA4_E_11    0.67            −0.47  0.77
RCA4_H_11      −0.34          −0.38  0.49
RCA4_M_11                  −0.49  0.82
RCA4_C_440.56−0.64                    
RCA4_I_44  −0.73  −0.35  0.47  0.55  −0.37  0.51
RCA4_E_440.42−0.450.56 −0.28−0.31     0.63   −0.49  0.80
RCA4_H_44                  −0.39  0.52
RCA4_M_44                  −0.290.33 0.59
Values are only given if the value of the linear model is smaller than 0.1; ∗, ∗∗ indicates that p value is smaller than 0.05 (0.001).