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Search Results for ""Lake Tana"":

Climate Change in the Lake Tana Basin, Ethiopia

11.9N 37.1E

April 28th, 2013 Category: Climate Change, Lakes

Ethiopia – April 27th, 2013

Climate change has the potential to reduce water resource availability in the Nile Basin countries in the forthcoming decades. Scientists investigating the sensitivity of water resources to climate change in the Lake Tana Basin, Ethiopia, using outputs from global climate models, have predicted statistically significant declines in annual streamflow for the 2080-2100 period. This means that anthropogenic climate changes may indeed alter the water balance in the Lake Tana Basin during the next century (click here for more information).

Lake Tana Environmental Issues, Ethiopia, and Dust Over Red Sea

12.1N 37.4E

January 30th, 2013 Category: Dust Storms, Lakes

Ethiopia – January 28th, 2013

Some dust can be seen blowing off the coast of Eritrea and over the Red Sea, towards the Dahlak Archipelago. Further south, in Ethiopia, the bright green waters of Lake Tana can be observed. The lake, which is the largest in Ethiopia and the main source of the Blue Nile, is under severe environmental threat from deforestation, soil and water erosion, sedimentation, increasing demand for water, pollution, and climate change.

Threats to Lake Tana and its catchment area have serious implications for environmental and human security in Ethiopia and raise other ecological and cultural questions as well. Lake Tana is the largest fresh water body in Ethiopia, accounting for 50 percent of the total inland waters in the country. The lake provides livelihood to over 3 million people living around it, as well as food security, and is a significant source of hydropower.

Changes in the lake and its watershed also have important international implications. A decrease in the quantity or quality of the outflow from Lake Tana may impact, the downstream riparian countries along the Nile, who rely heavily on these water resources for much of their agricultural production.

Ecologically, the lake area includes substantial wetlands, which provide a wide variety of ecosystem services, including habitat for fish and bird species, regulation of water flow, and mitigation of climate variability. All of these would be threatened by environmental degradation (click here for more information).

Lake Tana and Dust Over Red Sea

12.1N 37.3E

October 23rd, 2012 Category: Dust Storms, Lakes

Red Sea – October 21st, 2012

Dust blows off the coast of Eritrea, northward over the Red Sea towards the Dahlak Archipelago, an island group composed of over one hundred islands. Visible at the lower left is Lake Tana, in Ethiopia, the source of the Blue Nile River.

Bright Green Waters of Lake Tana in Ethiopian Highlands – January 18th, 2012

12.1N 37.3E

January 18th, 2012 Category: Image of the day, Lakes, Mountains

Ethiopia - December 29th, 2011

The bright green lake in the center of this image is Lake Tana, the source of the Blue Nile and is the largest lake in Ethiopia. Located in Amhara Region in the north-western Ethiopian highlands the lake is approximately 84 kilometers long and 66 kilometers wide, with a maximum depth of 15 meters, and an elevation of 1,840 meters.

The Ethiopian Highlands are a rugged mass of mountains in Ethiopia, Eritrea (which is sometimes referred to as the Eritrean Highlands), and northern Somalia in the Horn of Africa. They can be observed more extensively upon opening the full image. The Ethiopian Highlands form the largest continuous area of its altitude in the whole continent, with little of its surface falling below 1500 m (4,921 ft), while the summits reach heights of up to 4550 m (14,928 ft).

Green Waters of Lake Tana, Ethiopia

12.1N 37.3E

January 4th, 2012 Category: Lakes

Ethiopia - December 25th, 2011

Lake Tana is the source of the Blue Nile and is the largest lake in Ethiopia. Located in Amhara Region in the north-western Ethiopian highlands, the lake is approximately 84 kilometers long and 66 kilometers wide, with a maximum depth of 15 meters, and an elevation of 1,840 meters.

Lake Tana is fed by the Lesser Abay, Reb and Gumara Rivers and its surface area ranges from 3,000 to 3,500 kmĀ² depending on season and rainfall. The lake level has been regulated since the construction of the control weir where the lake discharges into the Blue Nile, which regulates the flow to the Tis Abbai falls and hydro-power station. Here, sediments and algal growth give the lake a mint green color.

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