climate Article Performance Evaluation of Satellite-Based Rainfall Products over Nigeria 1, , 2 3 Kingsley N. Ogbu * y , Nina Rholan Hounguè , Imoleayo E. Gbode and Bernhard Tischbein 1 1 Center for Development Research, University of Bonn, Genscherallee 3, D-53113 Bonn, Germany;
[email protected] 2 Geography Institute, University of Bonn, Meckenheimer Allee 166, 53115 Bonn, Germany;
[email protected] 3 Department of Meteorology and Climate Science, Federal University of Technology, 340252 Akure, Nigeria;
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[email protected] Current address: Department of Agricultural and Bioresources Engineering, Faculty of Engineering, y Nnamdi Azikiwe University, 420221 Awka, Nigeria. Received: 15 August 2020; Accepted: 22 September 2020; Published: 24 September 2020 Abstract: Understanding the variability of rainfall is important for sustaining rain-dependent agriculture and driving the local economy of Nigeria. Paucity and inadequate rain gauge network across Nigeria has made satellite-based rainfall products (SRPs), which offer a complete spatial and consistent temporal coverage, a better alternative. However, the accuracy of these products must be ascertained before use in water resource developments and planning. In this study, the performances of Climate Hazards Group Infrared Precipitation with Station data (CHIRPS), Precipitation estimation from Remotely Sensed Information using Artificial Neural Networks–Climate Data Record (PERSIANN-CDR), and Tropical Applications of Meteorology using SATellite data and ground-based observations (TAMSAT), were evaluated to investigate their ability to reproduce long term (1983–2013) observed rainfall characteristics derived from twenty-four (24) gauges in Nigeria. Results show that all products performed well in terms of capturing the observed annual cycle and spatial trends in all selected stations.