Earth Snapshot RSS Feed Twitter
 
 
 
 

Posts tagged Lake Tana

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 km² 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.

Sediments in Lake Tana, Ethiopia

12.1N 37.3E

July 11th, 2011 Category: Lakes

Ethiopia - July 4th, 2011

Tan sediments line the shores of Lake Tana, the source of the Blue Nile and the largest lake in Ethiopia, while the central part of the lake appears greenish in color.

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 km² 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.

Green Waters of Lake Tana, Ethiopia

12.1N 37.3E

April 25th, 2011 Category: Lakes, Mountains

Ethiopia - April 15th, 2011

Ethiopia’s Lake Tana (lower left quadrant) appears bright green due to the growth of algae and the presence of sediments.

Another lake, an artificial reservoir near the town of Ozentari, in the upper right quadrant, appears darker blue although some sediments can be observed in its waters in the full image.

West of the reservoir are the Semien Mountains, whose contours stand out against the landscape of the rest of the image, although the entire area is in fact located in the Ethiopian Highlands.

Lesser Abay River Entering Lake Tana, Ethiopia

13.2N 38.7E

March 5th, 2011 Category: Lakes, Mountains, Rivers

Ethiopia - February 10th, 2011

The growth of algae and the presence of sediments causes Lake Tana (lower left corner) to appear light green in color. Entering the lake by the dark green area on the southwestern shores is the Lesser Abay River.

The lake is located in the Ethiopian highlands. The Semien Mountains can be seen to the northeast. To the east of the mountains is an artificial reservoir located near the town of Ozentari.

Lake Tana Near Semien Mountains, Ethiopia – January 28th, 2011

12.0N 37.3E

January 28th, 2011 Category: Image of the day, Lakes, Mountains

Ethiopia - January 16th, 2011

Lake Tana (lower left quadrant), in the Ethiopian highlands, appears bright green due to sediments and algal growth. The Lesser Abay River flows into the lake by the dark green notch on the southwestern shores. Lake Tana, in turn, gives origin to the Blue Nile River.

Visible to the northeast of the lake are the Semien Mountains, in northern Ethiopia, northeast of Gondar. The mountains consist of plateaux separated by valleys and rising to pinnacles. The tallest peak is Ras Dashen (4,543 m); other notable heights include Mounts Biuat (4,437 m) and Abba Yared (4,460 m).