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Posts tagged Dahlak Archipelago

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.

Dust West of Dahlak Archipelago, Red Sea

15.8N 39.9E

October 22nd, 2012 Category: Dust Storms

Red Sea – October 21st, 2012

Dust blows over the Red Sea, off the coast of Eritrea (left) and Saudi Arabia (right). The dust is thickest just west of the Dahlak Archipelago, an island group that consists of two large and 124 small islands.

Dust Near Dahlak Archipelago in Red Sea

15.8N 40.2E

September 10th, 2012 Category: Dust Storms

Red Sea – August 30th, 2012

Dust blows across the southern half of the Red Sea, appearing thickest below the Dahlak Archipelago, off the coast of Eritrea. Due to the wide spread of the dust cloud across the sea, it is difficult to discern whether its point of origin is the Sahara Desert, on the African continent, or the Rub al’Khali desert, on the Arabian Peninsula, or a mixture of the two.

Streaked Patterns in Dust Over Red Sea

15.8N 40.2E

September 5th, 2012 Category: Dust Storms

Red Sea – September 1st, 2012

Dust blows off the coast of Sudan (upper left) and Eritrea (lower left) and over the Red Sea. Visible through the dust is the Dahlak Archipelago, just off the coast of Eritrea. The parallel, streaked patterns in the dust are due to cross-currents of air.

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