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Lakes Turkana and Kyoga and Mount Elgon, Uganda and Kenya – December 31st, 2011

3.6N 36.0E

December 31st, 2011 Category: Image of the day, Lakes, Volcanoes

Uganda and Kenya - December 29th, 2011

The image focuses on Lake Turkana, formerly known as Lake Rudolf, is a lake in the Great Rift Valley in Kenya, with its far northern end crossing into Ethiopia. Here, sediments and algal growth turn the lake’s color from tan in the north to green and then a dark, bluish green in the south.

It is the world’s largest permanent desert lake and the world’s largest alkaline lake. The rocks of the surrounding area are predominantly volcanic. Central Island is an active volcano, emitting vapors. Outcrops and rocky shores are found on the East and South shores of the lake, while dunes, spits and flats are on the West and North, at a lower elevation.

Visible at the bottom edge of the image are Lake Kyoga, a large shallow lake complex of Uganda, and Mount Elgon, an extinct shield volcano on the border of Uganda and Kenya. It is the oldest and largest solitary volcano in East Africa, covering an area of around 3500 km². Lake Kyoga has an area of about 1,720 km2. The Victoria Nile flows through the lake on its way from Lake Victoria to Lake Albert.

Lake Turkana and Lake Kyoga near the Kenya-Uganda Border – March 9th, 2009

March 9th, 2009 Category: Image of the day, Lakes, Volcanoes

Kenya - March 5th, 2009

Kenya - March 5th, 2009

Close-up of Lake Turkana

Close-up of Lake Turkana

Two lakes are located near the border between Kenya (right) and Uganda (left).

Lake Turkana is on the Kenyan side, located in the Great Rift Valley, with its far northern end crossing into Ethiopia.

It is the world’s largest permanent desert lake and the world’s largest alkaline lake. By volume it is the world’s fourth largest salt lake.

The rocks of the surrounding area are predominantly volcanic. Outcrops and rocky shores are found on the east and south shores of the lake, while dunes, spits and flats are on the West and North, at a lower elevation.

In the close-up, water movement through sediments creates a ripple-pattern on the surface.

Close-up of Lake Kyoga

Close-up of Lake Kyoga

On the Ugandan side, Lake Kyoga has an area of about 1,720 km² and is at an elevation of 914 m. The lake reaches its maximum depth at about 5.7 meters, although most of it is less than 4 m in depth.

Lake Kyoga is surrounded by extensive wetlands fed by a complex system of streams and rivers. Dark green algae is present throughout much of the lake, although the particularly bright green patches along the shoreline in the shallowest areas may be from mats of water lilies, papyrus and/or water hyacinth.

Due east of Lake Kyoga stands Mount Elgon, an extinct shield volcano on the border of Uganda and Kenya. It is the oldest and largest solitary volcano in East Africa, covering an area of around 3500 km².

Lake Kyoga, Uganda

January 26th, 2009 Category: Lakes

Lake Kyoga, Uganda - January 16th, 2009

Lake Kyoga, Uganda - January 16th, 2009

Lake Kyoga is a large shallow lake complex of Uganda, north of Lake Victoria, about 1,720 km² in area and at an elevation of 914 m.

The Victoria Nile flows through the lake on its way from Lake Victoria to Lake Albert. The main inflow from Lake Victoria is regulated by the Nalubaale Power Station in Jinja.

Another source of water is the Mount Elgon region on the border between Uganda and Kenya.

While Lake Kyoga is part of Great Lakes system, it is not itself considered a Great Lake.  Extensive wetlands fed by a complex system of streams and rivers surround the lake.

The lake complex reaches a maximum depth at about 5.7 meters, and most of it is less than 4 m in depth. Areas less than 3 m deep are completely covered by water lilies, which may contribute to the green tint of the lake as seen here.

Much of the swampy shoreline is covered with papyrus and water hyacinth. The papyrus also forms floating islands that drift between a number of small permanent islands.

Excessive El Niño rains in 1997-1998 resulted in exceptionally high water levels, causing large islands of papyrus and water hyacinth mats to become dislodged on the lake and to accumulate at the lake’s outlet into the Victoria Nile.

This blockage caused the water level to become even higher, flooding about 580 km² of the surrounding land and resulting in population displacement and severe socioeconomic damage.

source Wikipedia

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