*5.4. Heat wave: July 2013*

Figure 13 shows the daily total number of 999 emergency ambulance calls in London from 1 May 2013 to 30 September 2013. The minimum number of calls for this period is chosen to be equal to 4100.

**Figure 13.** The daily total number of 999 emergency ambulance calls (blue dots) in London from 1 March 2013 to 30 November 2013.

Figure 14 shows the positive daily difference of calls of 999 emergency ambulance calls (blue dots) in London from 1 March 2013 to 30 November 2013.

**Figure 14.** The positive daily difference of calls of 999 emergency ambulance calls (blue dots) in London from 1 March 2013 to 30 November 2013.

Table 6 shows the estimated q value and Tsallis expected value for the four ranges of each period.


**Table 6.** The estimated q value and Tsallis expected value for the four ranges of each period.
