Abstract

Author:

Ahmed Abubakar Jajere, Ibrahim Ahmed Jajere, Muhammed Bukar Ngamdui, Faiza Mahdi Doho

Doi: 10.26480/magg.01.2024.18.23

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

This study examines the rainfall attributes Latitudinal gradient in Sudano-Sahel Savannah of northern Nigeria. The study used 30years (1986-2016) rainfall records from three stations across the Latitudinal gradients. Descriptive statistical tools and Walters rainfall onset and cession date formula were used in calculating the rainfall attributes. The relationship and differences in rainfall attributes between the stations were determined using correlation and T-test statistical tools. Latitudinal gradient pattern was determined using linear regression tool. The findings of the study revealed that the northward rainfall attributes decreasing trend of the annual rainfall, onset date, number of rainy days and the length of the growing season is statistically. While the cession date spatial variability is statistically insignificant. An average of 114mm, 12days, 20days and 12days variation at every 10 of Latitude in annual rainfall, onset date, length of the growing season and rainy days was observed respectively. While two weeks’ variation in cession date between Latitude 12° and Latitude 14° was observed. The findings of this study can be used to determine the rainfall pattern of place within Sudano-Sahelian ecological belt.