Tableau 3
Baisse du nombre annuel de jours de pluie observée par rapport à la date de rupture sur la période 1961-1990. Annual rainy days decrease observed with respect to the date of the breakpoint during the period 1961-1990.
| Postes Pluviométriques | Test de Pettitt | Segmentation de Hubert et Carbonnel | Moyenne avant rupture (jours) | Moyenne après rupture (jours) | Baisse (%) |
|---|---|---|---|---|---|
| Zone sahélienne | |||||
| Barsalogho | 1979*** | 1967; 1981 | 47 | 32 | 32 |
| Bouroum | 1978** | 1977 | 43 | 29 | 33 |
| Bourzanga | 1979*** | 1979 | 57 | 43 | 25 |
| Tougouri | 1969* | 1965 | 52 | 39 | 25 |
| Zone soudano-sahélienne | |||||
| Boulsa | 1982** | 1968; 1984 | 59 | 44 | 25 |
| Kaya | 1976** | 1982 | 52 | 35 | 33 |
| Kongoussi | 1980*** | 1980 | 56 | 41 | 27 |
| Korsimoro | 1976*** | 1969 | 49 | 38 | 22 |
| Tikaré | 1972*** | 1970 | 65 | 50 | 23 |
Les signes *, ** et *** signifient que la rupture est respectivement significative à 90, 95 et 99% selon le résultat du test de Pettitt (1979). The signs *, ** and *** mean that the breakpoint is respectively significant to 90, 95 and 99% according the result of Pettitt test ((1979).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.