TAMSAT Daily Rainfall Estimates (Version 3.0)

The dataset comprises high resolution (0.0375 degrees) satellite-derived daily rainfall estimates for all Africa from January 1983 to December 2016 (data from 2017 onwards can be downloaded from the TAMSAT website: http://www.tamsat.org.uk/). The dataset is derived from TAMSAT Version 3.0 pentadal (5-day) rainfall estimates (1983-present). Although the principle features of the TAMSAT rainfall estimation approach have remained the same in generating TAMSAT Version 3.0, the calibration used in Version 3.0 differs markedly to Version 2.0 and is designed to better capture local variations in the rainfall climate while reducing problems associated with Version 2.0. Additionally, the timestep for the primary rainfall estimate is 5-day (pentad) in Version 3.0, compared to 10-day (dekad) in Version 2.0. Further details can be found on the TAMSAT website.

本数据集包含1983年1月至2016年12月期间覆盖全非洲的高分辨率（0.0375°）卫星反演日降雨量估算数据。2017年及以后的相关数据可通过TAMSAT官网（http://www.tamsat.org.uk/）下载。本数据集源自TAMSAT 3.0版本的5天（pentadal）降雨量估算数据，时间跨度为1983年至今。尽管TAMSAT降雨量估算方法的核心原理在3.0版本中保持一致，但该版本所采用的校准方案与2.0版本存在显著差异，其设计目的是更好地捕捉降雨气候的局地变化特征，同时改善2.0版本存在的各类问题。此外，3.0版本中核心降雨量估算的时间步长为5天（pentad），而2.0版本为10天（dekad）。更多详细信息可查阅TAMSAT官方网站。