Research Article
Impacts of the Sahel-Sahara Interface Reforestation on West African Climate: Intraseasonal Variability and Extreme Precipitation Events
Table 2
Definition of climate indices.
| | Indices | Definitions |
| | Number of wet days ( > 1 mm) | Number of days with daily cumulative precipitation greater than 1 mm | Simple daily intensity index (SDII)
mm/day | Precipitation intensity due to the wet days only | | Frequency of intense rainfall events ( ≥ 10 mm) | Number of days with daily precipitation greater than or equal to 10 mm | | Frequency of very intense rainfall events ( ≥ 20 mm) | Number of days with daily precipitation greater than or equal to 20 mm | Maximum 5-day precipitation (RX5day)
mm/day | The maximum of 5-day precipitation accumulations | 90th percentile (wet days)
mm/day | The value below which 90% of the data are found | 95th percentile (very wet days)
mm/day | The value below which 95% of the data are found | 99th percentile (extremely wet days)
mm/day | The value below which 99% of the data are found | | Maximum wet spell length (CWD) | Maximum length of the consecutive wet days with daily rainfall greater than 1 mm | | Maximum dry spell length (CDD) | Maximum length of the consecutive dry days with daily rainfall below 1 mm |
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