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Tableau 4

Ruptures chronologiques des indices d’extrêmes pluviométriques sur la période 1961-1990. Chronological breakpoints of the extreme rainfall indices on the period 1961-1990.

Postes pluviométriques P10 P20 P50 P95p P99p
Zone sahélienne
Barsalogho 1963; 1978*** 1976***; 1978 - 1964; 1969* 1964
Bourzanga 1978* - - 1978 -
Tougouri 1974* - - - -
Zone soudano-sahélienne
Boulsa 1968 - - 1965 -
Kaya 1976*** 1966 - - -
Kongoussi 1976* - - - -
Korsimoro 1970*** 1967 - - -
Mané 1965 1967* 1964 1964 1964
Tikaré 1963 1966* 1963 1963 1963

Les signes * et *** signifient que la rupture est respectivement significative à 90 et 99% selon le résultat du test de Pettitt (1979). The signs * and *** mean that the breakpoint is respectively significant to 90 and 99% according the result of Pettitt test ((1979).

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