Rainfall erosivity for the Njala Area in Southern Sierra Leone dataset

Rainfall erosivity is an important characteristic of rainfall that gives an indication of its aggressiveness and potential to cause soil erosion. There are models (such the USLE/RUSLE EI30) for estimating rainfall erosivity but they require pluviographic records which are limited or not available in developing countries like Sierra Leone. To address this challenge, methods have been developed to estimate rainfall erosivity from the relationship between rainfall erosivity (derived from pluviographic records) and the more readily available daily and monthly rainfall records. Furthermore despite the global application of the EI30 index, there are questions about its suitability at the local level. These datasets show how rainfall erosivity indices, EI30, EIavg and ETI were calculated from available 30-minute rainfall records in the Njala Area of Southern Sierra Leone. These indices were then used to derive relationships between rainfall erosivity and daily/monthly rainfall records which are readily available in the study area. These datasets have been generated to determining a suitable erosivity model for estimating rainfall erosivity from daily and monthly rainfall records for the Njala area.