Heat-Wave Events in Spain: Air Mass Analysis and Impacts on ⁷Be Concentrations

Figure 6

Comparison of ⁷Be activity concentration in each sampling site observed during (a) the whole set of heat-wave events and the remaining ⁷Be values registered during the same month and (b) the contribution of each air mass circulation considering the “pure” heat-waves events. In brackets is the number of pure heat-wave events associated with each ⁷Be activity concentrations. W: westerly and SW: south-westerly.

(a)

(b)