Research Square (Research Square)
A New Multiple Imputation Approach Using Machine Learning to Enhance Climate Databases in Senegal
August 2023 • Mory Touré, Nana Ama Browne Klutse, Mamadou Adama Sarr, Annine Duclaire Kenne, Md Abul Ehsan Bhuiyanr, Ousmane Ndiaye, Daouda Badiane, Wassila M. Thi…
Abstract This study aims at enhancing climate data in Senegal using information from the Global Surface Summary of the Day (GSOD). It uses data from 1991 to 2022 from major secondary synoptic stations in Senegal. These data are subject to missing values (data gaps). To address these gaps, multiple imputation was used based on three machine learning models: PMM (Predictive Mean Matching), RF (Random Forest), and NORM (Bayesian Linear Regression). The PMM model relies on averages of similar data, the RF model handle…