Climate change impact on water resources in the awash basin. The heavy dependence of the population on rainfed agriculture has made the people and the countrys. Assessing the performance of satellitebased precipitation. This section of the basin drains to the awash river or its tributaries. Towards an optimal integrated reservoir system management for.
The awash river basin is the most important basin in ethiopia. The volta river basin in west africa has a surface area of approximately 400,000 km2 across six countries. The awash basin covers a total area of 116,000 km 2 and has annual flow of 4. The river rises on the high plateau near ginchi town west of addis ababa in ethiopia and flows along the rift valley into the afar triangle, and. The data selection and validation process for the mekong river basin study involved three steps. Pdf drought analysis in the awash river basin, ethiopia. May 15, 2009 honourable gordon brown prime minister dear mr. It covers a total land area of 110,000 km 2 of which 64,000 km 2 is in western section of the basin. River basin management is a continuous process of planning and delivery. Introduction ethiopia has 12 river basins and awash river basin is one of them.
The river rises on the high plateau near ginchi town, in the west side of the capital city of addis ababa, ethiopia and flows along the rift valley into the afar triangle, and terminates in the salty lake abbe on the border with. Development of flood forecasting model in middle awash. The awash river originates from a high plateau, which is the central ethiopian highlan. The awash river basin is one of 12 major river basins of ethiopia, shared among five administrative regions amhara, oromia, somali, afar and. Analysis of water use on a large river basin using mike. The niger river basin, home to approximately 100 million people, is a vital, complex asset for west and central africa. About 85% of the volta basin is located in burkina faso and ghana while togo, benin, cote divoire and mali share the. Trend analysis of climatic and hydrological variables in. Longterm spi drought forecasting in the awash river basin in. Drought is a common occurrence in the awash river basin edossa et al.
The overall population in the awash basin is estimated to be 14. A river basin is the area of land from which all the water flows into a particular river. River basin in a sustainable manner, which includes integrated management of surface and ground water resources, in a manner that shall provide for. The technique is demonstrated by mapping surface water over the awash river basin, ethiopia, during the 2015 east african drought and 2016 flood events. Hydrology study of upper awash basin to evaluate the. Pdf rapid growth of agriculture, industries and urbanization within. The awash basin comprised about 11 million ha in size and consists of various topographical features flat to mountainous. Pdf water institutions in the awash basin of ethiopia. The river flows generally north eastwards along the rift valley and terminates in lake abe at an elevation of 250masl near the djibouti border. The first cycle will end in 2015 when, following further planning and consultation, this plan will be updated and reissued. Awash river basin flood control and watershed management study 1. Reliability of water acounting results for policy decisions in the awash basin. The awash basin is divided into three parts upper, middle, and lower basins based on climatological, physical, socioeconomic, agricultural, and water resources characteristics 5,21.
There are twelve major river basins in ethiopia of which awash basin is one and the most utilized river basin so far. Tackling pressures on the water environment 8 improving the condition of water bodies and protected areas 8 maintaining the quality of the water environment 9 4. The awash basin rises at an elevation of 3000masl over the central highland of ethiopia about 150 km west of addis ababa and has a drainage area of 110,000 sq. It was unanimously agreed among interviewed experts, governmental officials and local farmers that the causes of flooding cannot be attributed to the partial release of water from the koka reservoir. The awash river basin, ethiopia, is subject to high climate variability. The region is found within the danakil and awash river basin, which is located between 753. Pdf climate change impact on water resources in the awash. Cotton is grown in the fertile awash river valley, and dams notably the koka dam, 1960 supply hydroelectric power.
But avoid asking for help, clarification, or responding to other answers. Analysis of water use on a large river basin using mike basin. The sava river basin management plan 1 the parties agree to develop joint and or integrated plan on the management of the water resources of the sava river basin and to cooperate on its preparatory activities. Therefore, the research objective was to conduct hydrological study mainly evaluation of the major water balance components in the study area. Drought analysis in the awash river basin, ethiopia. The river rises on the high plateau near ginchi town, in the west side of the capital city of addis ababa, ethiopia and flows along the rift valley into the afar triangle, and terminates in the salty lake abbe on the border. Awash basin covers parts of afar, amhara, oromia, somali regional states, snnp and addis ababa and dire dawa administrative councils. River basins monitoring references national centers.
It is the ninth largest river basin in subsaharan africa. Captured along the rivers system, swamp area as well as canals and reservola. Description of the basin the awash river basin is the most important river basin in ethiopia, and covers a total land area of 110,000 km 2 and serves as home to 10. Lisflood is a gis and physically based and spatially distributed. The climate and hydrology of the upper blue nile river. The river basin management plan for the scotland river. List of river basins in the united states wikipedia. The awash river basin is the most important basin in ethiopia, and covers a total land area of 110,000 km 2 and serves as home to 10. The countrys capital, addis ababa, sits at an elevated position overseeing the lowlands, where the majority oromo and amharic peoples merge with several less populous mountain cultures. Water demand analysis and irrigation requirement for major. Material and method study area the study area is located in eastern part of ethiopia with a location of 70 53 120 4 n and 3802 43016 e.
Trend analysis of climatic and hydrological variables in the awash river basin, ethiopia article pdf available in water 1011. The awash river basin is the most important basin in. Pdf this paper strived to describe the features of water institutions in the awash basin from a historical. It is a holistic approach addressing, in addition to quality of rivers, lakes, transitional waters, coastal waters and groundwaters. In this stretch of the awash river, flooding is common during the rainy season. The study was conducted by reclamation in collaboration with the seven basin states and a broad range of stakeholders including tribes, agricultural users, purveyors of municipal and.
It is the fourth populous basin in ethiopia and ranks the 3 rd of all basins of ethiopia in. Holetta river is one of the rivers found in the upper part of awash basin and facing challenges of runoff variability and scarcity of water availability during the dry season. The colorado river basin study was released in december 2012. Chirps, which is a blend of satellitebased rainfall estimates and. Modsimbased water allocation modeling of awash river basin, ethiopia. Aqueduct metadata document mekong river basin study pdf.
In what follows, a brief explanation of the developments and flood management in the basin will be provided. Modsimbased water allocation modeling of awash river. The basin has a total catchment area of 110,000 km 2 and total length of 1200 km. The hood river basin study, conducted by the bureau of reclamation, hood river county, and the hood river county water planning group, was released in november 2015. Assessing the performance of satellitebased precipitation products and its dependence on topography over poyang. Overview of niger river basin countries and basin history the niger river basin is an extraordinary asset for the nine countries that are within its watershed and for the broader west and central africa region. Development of flood forecasting model in middle awash river. Contrasting principles, policy, and practice awash river basin, ethiopia article in water policy 182. Tributaries to awash river such as kessem, kebena, hawadi, ataye jara, mille and loqiya rivers contributed most to the lowland flooding in afar. Longterm spi drought forecasting in the awash river basin. The water framework directive introduces a formal series of 6 year cycles. A major river basin that has serious flood problems is the awash river basin that.
May 15, 2009 honourable gordon brown prime minister dear. It rises on a steep northern escarpment of the eastern great rift valley and is fed by lakes shala, abiyata, langano, and ziway. Apr 22, 2019 the technique is demonstrated by mapping surface water over the awash river basin, ethiopia, during the 2015 east african drought and 2016 flood events. The study area covers the total catchment of 31183 km2 and located in middle part of awash river. River basin definition and meaning collins english. Towards an optimal integrated reservoir system management. Location and elevation of awash basin among the ethiopian river basins. Chirps, which is a blend of satellitebased rainfall estimates and gauge data. Awash river, formerly hawash river, river in eastern ethiopia.
Benin, burkina faso, cote divoire, ghana, mali, and togo. The persistent paradigm for modernizing river basins. Awash river basin in context of all ethiopian river basins. Map of awash river basin adopted from gebretsadik, 2015. Sep 10, 2009 this study analyzes drought characteristics in the awash river basin of ethiopia based on meteorological and hydrological variables. The awash river originates from a high plateau, which is the central ethiopian highlan d with an elevation up to 3000 m. Upper awash river catchment on the productivity of flood recession agriculture in two separate sites. The most highly developed river basin with improved economic infrastructure is the awash river. Students will learn the key terms and processes associated with a rivers basin. Demands placed on the basins water supplies include potable water, hydropower, habitat needs esalisted fish species, recreation, and scenic value these demands are expected. Thanks for contributing an answer to geographic information systems stack exchange.
Students will then create a popup river basin for their books. Two of the emerging consulting industry firms that were most active in the awash basin projects were sogreah consultants sas and sir alexander gibb. Its course is entirely contained within the boundaries of ethiopia and empties into a chain of interconnected lakes that begin with lake gargori and end with lake abbe or abhe bad on the border with djibouti, some 100 kilometres 60 or 70 miles. Evaluating the impacts of iwrm policy actions on demand. The number of river basins under water stress is rapidly growing vorosmarty. We work for an equitable, participatory and sustainable development of water resources in awash basin. Our results show the severe impact of the drought on basin water bodies, basin recovery to predrought conditions after the 2016 summer rains, and localized flooding from these rains. About 46 % of the basin area falls in amhara state, 32%. An analysis of the management of water, soil and field by the farmers as well as the importance of other sources of income related to the. Within ethiopia, the global consulting industry cgi was evident by the 1950s, when some members were essential to ethiopias first large river basin developmentin the awash river basin. Its course is entirely contained within the boundaries of ethiopia and empties into a chain of interconnected lakes that begin with lake gargori and end with lake abbe or abhe bad on the border with djibouti, some 100 kilometres 60 or 70 miles from the head. Standardized precipitation index is used for temporal and spatial analyses of meteorological drought and the theory of runs is used to define hydrological drought by considering streamflow as the drought indicator. Climate change impact on water resources in the awash. The awash river basin drains along the great nitt valley made its river basin in a broad display.
River basin definition and meaning collins english dictionary. Water demand, holetta river, cropwat model, water use 1. Each country within the basin has unique geographic settings and a wide range of available resources. Pdf modsimbased water allocation modeling of awash. Awash river basin being the early developed basin in terms of modern agriculture and the most utilized basin of ethiopia, one can easily assume abundant data and documentations are available. Its course is entirely contained within the boundaries of ethiopia, and empties into a chain of interconnected lakes that begin with lake gargori and end with lake abbe on the border with djibouti, some 100 kilometers 60 or 70 miles from the head of the gulf of tadjoura. Dec 21, 2016 within ethiopia, the global consulting industry cgi was evident by the 1950s, when some members were essential to ethiopias first large river basin developmentin the awash river basin. Spatial evapotranspiration, rainfall and land use data in water. Understandingly enough, different studies usually acquire hydrological and weather data to only meet their own intended particular purposes.
Herds of antelope and gazelle live in the awash national park. In areas like upper awash basin in which surface water resources are scarce, groundwater is the primary option for both domestic and agricultural water demand. Modsimbased water allocation modeling of awash river basin. Nevertheless, there still are problems to increase flood damage in this area. The integrated river basin management is the main aim promoted by the european water framework directive wfd council of the european communities, 2000, which came into force in december 2000.
867 554 296 475 298 1267 1522 1242 947 1093 1405 1013 1426 483 1134 569 1341 1251 1605 936 423 1017 159 693 64 1468 599 545 599 636 1418 1103 477