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Browsing Thesis by Issue Date

Browsing Thesis by Issue Date

Now showing items 1-20 of 261

Estimation of Actual Evapotranspiration Using Soil Water Balance Method and Surface Energy Balance System Model At Koga Irrigation Scheme, Ethiopia

Amera, Wendale (2019-06)

The aim of this study was to estimate the actual evapotranspiration using soil water balance method and the remote sensing-based SEBS model at Koga irrigation Scheme. First, the soil water balance method was conducted in ...
Land use and Land cover Dynamics on Sediment Yield (The Case of Gedeb Watershed)

Yihunie, Asaye (2019-09)

Soil erosion is a major problem in Abay basin, Ethiopia. Gedeb watershed which found on the southern side of Abbay basin and found in south Gojjam sub-basin in Ethiopia and mostly affected by soil erosion, sediment ...
Developing Peak Flow in Unguage Catchments of the Abbay Basin, Ethioiapa

Ferede, Kassaw (2019-09)

Reliable estimates of peak flow and flood forecasting are of greatconcerns in water resources management and development. However, the mostconventional methods rainfall runoff modeling and flood frequency analysis for ...
SOURCE OF MIXING WATER AND ITS EFFECT ON COMPRESSIVE STRENGTH OF CONCRETE THE CASE OF BAHIR DAR

ERMIAS, PETROS DEGSEW (2019-09)

Making a good quality concrete which satisfies both strength and durability requirements needs great care starting from ingredient selection. The ingredients selected should fulfill the requirements stated in standards. ...
Estimation Of Suspended Sediment Concentration From Remote Sensing And In-Situ Measurements Over Lake Tana, Ethiopia

Regasa, Zelalem (2019-10)

Discharge from basins joining a lake is the main factor determining the lake volume, sedimentinﬂow,andturbidityofthelake. Suspendedsediment/orsolidsisanimportant parameter for describing the water quality of aquatic ...
Daily Rainfall-Run off Modeling On Gilgel Abay River Basin

Tegegne, Yonas (2019-10)

This research was aimed at conducting catchment modeling for better understanding of hydrologic functioning and runoff generation mechanisms of Gilgel Abay River basin and to evaluate the performance of ANN model and to ...
Investigation of Effect of Rainfall Variability on Selected Crops Production in the Banja Werda Ethiopia

Tafere, Alebel (2019-10)

Agricultural production in Ethiopia is predominantly rainfed. And variation of rainfall in space and time affects the agricultural production system. Due to this it needs accurate measurement and study on the rainfall ...
Evaluation of Widely Used Time of Concentration Estimation Equations In Ethiopian Highland Watersheds

Mekuriaw, Yosef (2019-12)

An accurate estimation of peak flow in data scarce watersheds is a challenging activity due to incorrect computation of time of concentration. The challenge of peak flow estimation basically comes from the estimation of ...
Flooding Problems and Surface Water Drainage Conditions in Assosa Town, Ethiopia

LETA, ABDETA (2020)

The problem of poor drainage system did not get due attention in most urban city of Ethiopia. In Assosa town flooding and surface water inundation are a common problem at time of rainy season. The primary objective of ...
ASSESSING THE IMPACT OF KOGA LARGE SCALE IRRIGATION SCHEME ON GROUNDWATER RECHARGE AND WATER QUALITY, NORTHWEST ETHIOPIA

Dires, Tewabe Simegn (2020)

The development of irrigated agriculture has multi-directional benefits for the economic development of a country. However, it has negative consequences including environmental effects, land degradation, waterlogging, ...
Analyzing the Hydrological Response of Chat (Catha Edulis) Cultivation in Aba Gerima Watershed, Lake Tana Basin, Ethiopia

Bitew, Kindie (2020)

Chat (Catha Edulis) is the current highly expanded and a commercially available crop in eastern Africa and the Arabian Peninsula. It becomes one of Ethiopia's largest crops by cultivated area, the country's second-largest ...
SUITABLE DAM SITE IDENTIFICATION AND ITS HYDROPOWER POTENTIAL ASSESMENT (A CASE STUDY OF BIRR WATERSHED, ABBAY BASIN, ETHIOPIA)

TAYE, YILAK (2020)

The classical approach of dam site investigation was often carried out by a team of specialists. However, it is hardly possible to survey all potential areas as it requires much resource. Therefore, this study initiated ...
Mapping and examining the spatiotemporal trend of turbidity: A remote sensing perspective over Lake Tana, Blue Nile Basin, Ethiopia

Hiyaru, Ahmed (2020)

Frequent monitoring of water quality (WQ) is a crucial activity. WQ problem is a big challenge in Lake Tana now and in the future. Turbidity affects WQ by hindering the entrance of light in the water column. This affects ...
PERFORMANCE EVALUATION OF SMALL SCALE IRRIGATION SCHEME CASE STUDY ON ANJEB SCHEME EAST GOJJAM ZONE, AMHARA REGION, ETHIOPIA

AMSALU, YONAS (2020)

This study was conducted to evaluate the performance of Anjeb small irrigation scheme at Goncha Siso Enesie Woreda, East Gojjam zone, Amhara Region. Internal and external performance indicators were used for evaluation. ...
DAM BREACH MODELING AND DOWNSTREAM FLOOD MAPPING (CASE STUDY OF AJIMAA DAM)

AHMED, MOHAMMEDSEID (2020)

Huge losses in human lives and economic properties can be resulted from dam failure. Therefore, modeling of dam breaching is significance for dam failure damage assessment, risk analysis, disasters control and mitigation. ...
PERFORMANCE EVALUATION AND ASSESMNT OF LEGEMERA SMALL SCALE IRRIGATION SCHEME SOUTH WOLLO ETHIOPIA

LEGESSE, ABDULAZIZ (2020)

Irrigation scheme performance assessment is vital to evaluate the impacts of irrigation practices, to identify performance gaps and improve system performances. Therefore, this study was carried out to evaluate internal ...
Assessment of Megech River Bank Erosion and Sedimentation Upper Blue Nile Basin

Baisa, Efa (2020)

The change in river morphology in river systems is described by river bank erosion, river bed level change and lateral channel change. The alluvial river channels in Lake Tana sub basin in the upper Blue Nile basin have ...
FLOOD INUNDATION MAPPING IN TEMIE RIVER, UPPER BLUE NILE

Aynalem, Belete (2020)

At this time extraordinary floods are common to many parts of our country causing a lot of losses such agricultural land and grazing land for long period of time. Temie watershed is been one among such place that has ...
HYDROLOGICAL MODELING OF CLIMATE CHANGE IMPACTS IN AWASH RIVER BASIN: A CASE OF BORKENA RIVER CATCHMENT, ETHIOPIA

KIFLE, TESHOME (2020)

Regional and local hydrological regimes are expressively exposed to global climate change, which is considered to be one of the major problems threating water resources and flood security. This research has been done aimed ...
A CASE STUDY OF SELAMKO MICRO EARTH DAM, LAKE TANA BASIN, ETHIOPIA.

ADANE, YOHANNES (2020)

Hydraulic structures such as dams have inevitable effects on their downstream that requires investigation. This study assesses the impacts of hydraulic structures on river morphology in Selamko watershed, Lake Tana basin, ...

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