Rainfall variability patterns in Nigeria during the rainy season.

ABSTRACT: To enhance the physical understanding of the circulation patterns associated with rainfall variations in Nigeria, we spatially decomposed rainfall during the rainy season and uncovered the asymmetric atmospheric circulation patterns driving wet and dry regimes in specific parts of Nigeria. Also, we examined linear trends in rainfall and the circulation patterns driving the trends. Our result shows that during the analysis period (1979-2022), northern part of Nigeria has coherent rainfall anomaly that is coupled with rainfall variations over the Sahel (Pearson correlation coefficient (r) is 0.55), and sea surface temperature anomalies (SSTa) in the global oceans (r = [Formula: see text]). The negative phases of the Pacific Decadal Oscillation, North Atlantic Oscillation, and the North Pacif

SUBMITTER: Ibebuchi CC 

PROVIDER: S-EPMC10188553 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature