According to AN the North–South gradient presents
an opposite trend. The study of the summer average shows that the
anomalies produced by AN and QM are more important than the
anomaly of WT. In the first case, the average anomaly is of 2.2 C
and in the second it is of 1.4 C. These differences are mainly due
to the choice of the temperature index in WT, which was calculated
at the scale of Europe. SAMM produces an important increase of
summer temperature in France, which contrasts with a milder increase
in Europe, which is the reference increase for WT.