ISSN: 2157-7617

Journal des sciences de la Terre et du changement climatique

Accès libre

Notre groupe organise plus de 3 000 séries de conférences Événements chaque année aux États-Unis, en Europe et en Europe. Asie avec le soutien de 1 000 autres Sociétés scientifiques et publie plus de 700 Open Access Revues qui contiennent plus de 50 000 personnalités éminentes, des scientifiques réputés en tant que membres du comité de rédaction.

Les revues en libre accès gagnent plus de lecteurs et de citations
700 revues et 15 000 000 de lecteurs Chaque revue attire plus de 25 000 lecteurs

Indexé dans
  • Indice source CAS (CASSI)
  • Index Copernic
  • Google Scholar
  • Sherpa Roméo
  • Accès en ligne à la recherche en environnement (OARE)
  • Ouvrir la porte J
  • JournalSeek de génamique
  • JournalTOC
  • Annuaire des périodiques d'Ulrich
  • Accès à la recherche mondiale en ligne sur l'agriculture (AGORA)
  • Centre international pour l'agriculture et les biosciences (CABI)
  • Recherche de référence
  • Université Hamdard
  • EBSCO AZ
  • OCLC-WorldCat
  • Invocation de quête
  • Catalogue en ligne SWB
  • Publons
  • Euro Pub
  • ICMJE
Partager cette page

Abstrait

Application of Isotopes and Recharge Analysis in Investigating Surface Water and Groundwater in Fractured Aquifer under Influence of Climate Variability

Jacob Nyende, van Tonder G and Danie Vermeulen

The impact of Climate variability on water resources (surface and ground) was conducted to assess the effect of meteorological forcing on isotopic and recharge characteristics of the granitic and fractured aquifer, located in Pallisa District (Kyoga basin), eastern Uganda. The paper investigated the application of environmental isotopes and using the EARTH Model in determining the groundwater levels response to rainfall of the fractured aquifer. The granitic fractured aquifer is characterized by shallow to deep water table conditions that vary between 5-50 meters below ground level and quick groundwater level response to rainfall events which justified the application of the EARTH model to demonstrate the groundwater level fluctuations of the single monitoring Well-002. Groundwater fluctuations from the observed hydrograph at the monitoring station vary between 8.8 and 13.48 mamsl with an average hydrostatic fluctuation of 11.42 mamsl. Oxygen-18 (δ18O) and deuterium (δ2H) compositions mostly plot below the Local Meteoric Water Line (LMWL) indicating that the surface water and groundwater in the aquifer was exposed to evaporation before or in the recharging process. In the study, groundwater levels response to rainfall events by the EARTH method is the quantitative estimation of groundwater recharge for Pallisa District watershed. Generally, the study findings suggest that applications of precipitation isotopic rainfall data for light and heavy mean monthly rainfall (mean rainfall of 138 mm) and the EARTH model to assess groundwater recharge can improve the understanding of the process under climate variability.