by
the modal occurrences shown in Figure 9, is equal to the seasonal mean field.
The eight modal mean MSLP fields, together with the corresponding average centred temporal
tendencies of the MSLP field (d p=d tjt0 = (p(t0 + d
t) p(t0 d
t))=2d
t, with d
t = 2 days) in
winter are shown in Figure 10. In summer, the spatial patterns of mean MSLP fields are similar
but less distinct, with weaker pressure
/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_005.pdf