Groundwater and Surface Water Interactions in Hayk and Ardibo Lake, Sustainability Challenge, Northern Ethiopia.
| dc.contributor.advisor | Nedaw, Dessie (PhD) | |
| dc.contributor.author | Asqual, Ebrahim | |
| dc.date.accessioned | 2021-03-16T07:06:01Z | |
| dc.date.accessioned | 2023-11-09T14:12:37Z | |
| dc.date.available | 2021-03-16T07:06:01Z | |
| dc.date.available | 2023-11-09T14:12:37Z | |
| dc.date.issued | 2021-03-29 | |
| dc.description.abstract | The Hayk and Ardibo lakes are characterized by continuous reduction level of water. This thesis work aimed to investigate the groundwater and surface water interactions using hydrochemical parameters and recharge estimation using WetSpass model to evaluate sustainability of water consumption in the Hayk and Ardbibo area located in northeastern Ethiopia. Eight (8) water samples were collected from lakes, bore holes, springs and stream and analyzed in laboratory and the results are plotted in different diagrams. Long term mean hydrometeorological data and land use/land cover, soil type, topography, groundwater depth and slope are used as an input to the WetSpass model. From the simulated results of WetSpass model, the mean annual groundwater recharge, surface runoff, and evapotranspiration were found to be 257.3 mm, 438.5 mm and 525.6 mm respectively. From these components the recharge accounts 19% of the mean annual rainfall and the remaining 81% are towards surface runoff and evapotranspiration. The water balance in the study area calculated using the simulated result of WetSpass model is -53.31mm. The imbalance of the inflow and out flow components in the study area is the challenge for the sustainability of water resources. Based on the Aquachem software hydrochemistry analysis of water samples, the results are plotted in Piper diagram and showed that six (6) out of eight (8) water samples are similar (Ca-HCO3) types. The two another water samples are Ca-Na-HCO3 and Na- HCO3 types. The groundwater samples and one stream water sample are similar (Ca-HCO3) types. Generally, all water samples are carbonate type. The samples were also plotted in Scholler diagram and showed that a similar trend in the composition of ions. The interaction of groundwater and surface water in the study area was also supported by groundwater contour map and the result showed that the groundwater flow direction is predominantly from Lake Ardibo towards Lake Hayk. From the chemical analysis of water samples almost all parameters are within the recommended limits of WHO for drinking and irrigation purpose. Generally, based on hydrochemical analysis and groundwater contour map, there is an interaction of surface and groundwater in the catchment and the outflow is greater than the inflow. For Future sustainability water resources in the study area, further identification of the surface and groundwater interaction using more hydrochemical sampling and accurate evaluations of groundwater recharge is essential. | en_US |
| dc.identifier.uri | http://10.90.10.223:4000/handle/123456789/25501 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Surface-Water Groundwater Interactions | en_US |
| dc.subject | Wetspass | en_US |
| dc.subject | Groundwater Recharge | en_US |
| dc.subject | Runoff | en_US |
| dc.subject | Evapotranspiration | en_US |
| dc.subject | Hayk-Ardibo Area | en_US |
| dc.title | Groundwater and Surface Water Interactions in Hayk and Ardibo Lake, Sustainability Challenge, Northern Ethiopia. | en_US |
| dc.type | Thesis | en_US |