STATISTICAL CHANGE POINT ANALYSIS: APPLICATION TO LAKE CHAD WEATHER DATA

In this work, we address the problem of parametric and non-parame-tric statistical tests by proposing a criterion to detect shifts in precipitation, humidity, and maximum temperature data for Lake Chad from 1925 to 2010. The statistical tests employed include the Buishand, Pettitt, and Mann-Kendall tests. Our analysis indicates that the change point occurred between 1960 and 1990, particularly in precipitation and maximum temperature data. For the monthly analysis, shifts were notably observed in April and August, specifically in temperature and humidity.