Abstract
Understanding the intricate interplay between the Soil temperature and climate change holds paramount importance, serving as a pivotal gateway to unravel the ramifications of shifting climatic patterns on soil temprature dynamics and hydrological processes. This study embarks on a comprehensive exploration aimed at scrutinizing soil temprature fluctuations within the El Chouly watershed situated in northwestern Algeria, spanning a time frame of five years. Leveraging the trove of Sentinal satellite imagery available for each year throughout the study duration, our inquiry revolves around the discernment of soil temprature variations vis-à-vis alterations in key climatic parameters such as precipitation and temperature.
Employing the Soil temprature Index (ST) as our analytical cornerstone, we meticulously dissect satellite imagery captured on five distinct dates. Our findings unveil a mosaic of soil temprature dynamics across the temporal spectrum. For instance, on January 2, 2020, an expansive swath of land spanning 404,8hectares exhibited significantly elevated soil temprature levels (ST ranging from 0.8 to 1), indicative of abundant moisture content. Conversely, a mere 21,(hectares on December 30, 2017, manifested analogous high ST values, accentuating the ephemeral nature of such conditions.
The nadir of soil temprature , denoted by ST values hovering between 0 and 0.2, reached its zenith on December 30, 2017, enshrouding an extensive terrain spanning 1809.37 hectares. This stark revelation underscores the pervasive aridity pervading a substantial expanse of the watershed during this epoch.
Upon juxtaposing these empirical observations with the meticulously analyzed climatic data spanning the stipulated period, a cogent narrative emerges, underscoring the intricate dance between climatic vicissitudes and soil temprature dynamics.