ClimSA Station: Fitness For Purpose
A case study for rainfall estimation over Africa
This technical report describes a case study where the Fitness for Purpose (F4P), i.e., a series of benchmarking and analysis tools available in the ClimSA Station, were applied to four rainfall estimation (RFE) space-born products. The F4P toolbox aims at providing methods and frameworks for observational datasets and mutual comparison of regional-scale models to give clear indication on which datasets are best fitting for user purposes. The analysis took in consideration 21 years of data (2001, 2021) obtained from CHIRPS, FEWSNET, TAMSAT and ARC2 products. The document describes the main results derived from the application of the different F4P metrics: longitudinal average diagram, scatter density diagrams, histograms, cumulated distribution functions, gamma-index analysis and trend analysis. The general conclusion reported a good agreement between the four RFE products, as an example, the scatter density analysis highlighted that some product pairs are in better agreement with each other. The longitudinal average diagram showed that all products are able to describe the same precipitation behaviour, over the considered time period, on the African continent. The Mann-Kendall seasonal test results in good agreement of the four trend distributions. The F4P toolbox proven its ability in assessing products reliability and complements the ClimSA station as a key tool for the implementation of the Integrated African Meteorology Strategy, strengthening political decision-making at all levels.
CAPPUCCI Fabrizio;
CLERICI Marco;
GOBRON Nadine;
LAVAYSSE Christophe;
VENKATACHALAM Vijay;
VAN'T KLOOSTER Jurriaan;
2023-12-31
Publications Office of the European Union
JRC135478
978-92-68-10857-4 (online),
1831-9424 (online),
EUR 31785 EN,
OP KJ-NA-31-785-EN-N (online),
https://publications.jrc.ec.europa.eu/repository/handle/JRC135478,
10.2760/78188 (online),
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