Bøger af Yirga Alemu Azene

Master's Thesis from the year 2019 in the subject Organisation and administration - Public administration, grade: Very Good, , course: Business Administration, language: English, abstract: The main objective of the study is to establish the performance of GWSSS in terms of quality of water services, economicalefficiency, and operational sustainability against widely accepted key standard performance indicators and benchmarking the water utility against other well-performing utilities around East Africa for purposes of development of decision support tools for better management of the system.The last eight-year data from the annual report and from the management information system of the Gondar utility are used in the analysis of indicators and to see the performance trend. Performance evaluation of water supply services for Gondar city was carried out using thirteen key performance indicators. From the first category six indicators in the quality of water services, one indicator on water quality compliance has the utility performing well. The other five indicators that are water supply coverage, average total per capita consumption, average per capita domestic consumption, continuity of piped water supply, and the number of persons per domestic connection are the performance of the utility is poor and much below the benchmarked utilities. From the second category of four indicators in improving economic efficiency one indicator in improving personnel expenditure has moderate performance; one indicator on tariff cost recovery has shown low performance, and two indicators in improving bill revenue collection efficiency and operating cost coverage are well performed. The third category of three indicators in improving operational sustainability; one indicator in staffing level is poor performance and two indicators in nonrevenue water and treatment capacity utilized the utility is performing well compared to benchmarked utilities. In general, GWSSS is performing well in five indicators, moderate performance in one indicator, and the rest seven indicators the performance of Gondar is poor and much below the benchmarked utilities. Therefore, it is highly recommended that Gondar utility should take much focus on improving: the water supply services, water production, number of water connections, water consumption, tariff cost recovery, and staffing level.

Master's Thesis from the year 2007 in the subject Agrarian Studies, grade: Very Good, , course: Irrigation Engineering, language: English, abstract: This study is an attempt to identify the main causes and effect of flooding on agricultural production and the peoples living in the Lake Tana surroundings. Although floods are relatively common during the June to September rainy season in Ethiopia, the magnitude of the current flooding in 2006 is unprecedented. In year 2006 the country has experienced some of the heaviest and most intense rains on record; resulting in flash floods and/or the overflow of rivers, lakes and dams, where local residents have been advised to leave. The impact of the disaster in terms of lives, infrastructure, livelihoods, and basic coping mechanisms has yet to be assessedThe rainfall variability analysis of the Lake Tana (LT) basin in 2006 showed an on average 43% increase in wet season rainfall than the normal (mean). All rainfall gauging stations show an increase in rainfall in 2006. Similarly, the variability analysis of major rivers also showed that on average 35% increase in flood season streamflow of G/Abay, Gumara, Rib, Megech, and Koga. The trend of these rivers shows that maximum runoff for the year 2006 was higher than the mean of the long term maximum flood. Whereas Lake Tana maximum flood level of 2006 (1787.155masl) shows an increase of 16 cm only from the mean flood levels of previous records (1787 masl). The Pearson III method of the moment probability distribution is the best fit for Megech and Rib rivers. For Gumara river Pearson III probability weighted moment distribution better estimate flood quantiles with less standard error. It is also found that Gamma two probability weighted moment is the best fit for Lake Tana water surface level. In general, from rainfall and flood frequency analysis the 2006-year flooding may have a chance to occur once in six years in LTB. The 2006-year flood damage indicates that there is a high impact on agricultural production of Lake Tana surrounding plains. 107,647 peoples were actually affected by floods. At least 448, 910 quantal of food grain, 1230 domestic animals, 9634 chickens, and 1088 bee-hives were damaged by the 2006 flood. The impacts of flooding on socio-economic and environmental resource indicators were qualitatively assessed. Totally twenty-seven indicators were assessed.