Artificial Groundwater Recharge Field Experiments Evaluation by Time Series in Abu Simbel, Egypt

Artificial recharge of aquifers is one of the applications carried out to benefit from surplus rainwater, surface water, flood water or even treated water. The advantages of artificial charging of groundwater are that it works to recharge the groundwater reservoir to enhance its capabilities of the groundwater reservoir or to improve its quality or to reduce the interference of seawater and benefit from the stored water when needed. Since 2001, Research Institute for Groundwater (RIGW) conducted artificial recharge experiments through open basins and injection well with surface water in Abu Simbel Experimental station, Tushka from a Lake Nasser (LN) were tested in order to monitor the water levels. and improve water quality. The groundwater levels (GWL) monitoring of the aquifer was observed to describe the spatial piezometric and to show the effect of the artificial recharge. Time series (TS) analysis is a useful concept for hydrological variables prediction such as; water consumption, temperature, water levels, and water quality. This study is carried out to simulate GWL by TS analysis for observation network in Abu Simbel, Tushka, Egypt. The overall objective of the paper is to evaluate the GWL trend for GW observation points for (RIGW) experimental station at Tushka, Egypt, and to predict levels of GW using Holt-Winters and ARIMA TS models. In this research, Holt-Winters and ARIMA models were compared for their accuracy. The results indicated that the ARIMA model provided the best prediction.