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Sun Glint on Lake Nasser and Toshka Lakes, Egypt and Sudan – May 29th, 2011

23.2N 32.7E

May 29th, 2011 Category: Image of the day, Lakes

Egypt - May 18th, 2011

Sun glint causes Lake Nasser, on the border of Egypt and Sudan, to have a silvery gleam. The small southern part of the lake located in Sudanese territory is usually called Lake Nubia in Sudan.

One of the Toshka Lakes, near the left edge, also appears silvery from sun glint, while another further west is not directly reflecting the sun and appears blue.


Nile River, from Lake Nasser to Khartoum – February 11th, 2010

19.5N 32.9E

February 11th, 2010 Category: Image of the day, Rivers

Sudan - January 26th, 2010

Sudan - January 26th, 2010

The Nile River, generally regarded as the longest river in the world, can be seen making its way through Egypt (above) and Sudan (below) in this image of northern Africa. Here, the stretch of the river from Lake Nasser (above) to the confluence of its two major tributaries, the White Nile and Blue Nile, near Khartoum (below).

Upon opening the full image, two other segments of the great river can be observed. The first is a part of the river north of Lake Nasser, surrounded by fertile green land. The second is south of Khartoum, and includes the agricultural land of the Gezira Scheme.

Lake Nasser and the Nile River, Egypt and Sudan – January 23rd, 2009

January 23rd, 2009 Category: Image of the day, Lakes, Rivers

Lake Nasser and the Nile River, Egypt and Sudan - December 2nd, 2008 - December 2nd, 2008

Lake Nasser and the Nile River, Egypt and Sudan - December 2nd, 2008 - December 2nd, 2008

The construction of the Aswan High Dam across the waters of the Nile River, between 1958 and 1970, created Lake Nasser (right).

Lake Nasser is a vast reservoir in southern Egypt and northern Sudan. Strictly, “Lake Nasser” refers only to the much larger portion of the lake that is in Egyptian territory (83% of the total), with the Sudanese preferring to call their smaller body of water Lake Nubia.

The lake is some 550 km long and 35 km across at its widest point, which is near the Tropic of Cancer. It covers a total surface area of 5,250 km² and has a storage capacity of some 157 km³ of water.

The two smaller bodies of water (left) are the Toshka Lakes, created to allow water levels higher than 178 m in Lake Nasser to be drained off.

The southern tip of Lake Nasser, below the Sudanese border, appears green with algae, whilst the northern part, in Egypt, appears clear of algae and sediments. An algal bloom is also present in one of the Toshka Lakes.

source Wikipedia

Nile Delta, Egypt, Threatened by Global Warming – March 21st, 2013

30.0N 31.2E

March 21st, 2013 Category: Climate Change, Image of the day, Lakes, Rivers

Egypt – March 20th, 2013

Millions of Egyptians could be forced permanently from their homes, the country’s ability to feed itself devastated. That’s what likely awaits this already impoverished and overpopulated nation by the end of the century, if predictions about climate change hold true. The World Bank describes Egypt as particularly vulnerable to the effects of global warming, saying it faces potentially “catastrophic” consequences.

A big reason is the vulnerability of Egypt’s breadbasket — the Nile Delta, a fan-shaped area of rich, arable land where the Nile River spreads out and drains into the Mediterranean Sea. Although the Delta makes up only 2.5% of Egypt’s land mass, it is home to more than a third of this largely desert country’s 80 million people.

The Delta was already in danger, threatened by the side effects of southern Egypt’s Aswan Dam (the main reservoir created by the dam, Lake Nasser, is visible by the bottom of the full image). Though the dam, completed in 1970, generates much-needed electricity and controls Nile River flooding, it also keeps nutrient sediment from replenishing the eroding Delta. Here, some sediment can be seen along the delta coast.

Add climate change to the mix, and the Delta faces new uncertainties that could have a potentially more devastating effect on Egypt. Scientists generally predict that the Mediterranean, and the world’s other seas, will rise between one foot (30 centimeters) and 3.3 feet (one meter) by the end of the century, flooding coastal areas along the Delta.

A rise of 3.3 feet (one meter) would flood a quarter of the Delta, forcing about 10.5% of Egypt’s population from their homes, according to the World Bank. The impact would be all the more staggering if Egypt’s population, as expected, doubles to about 160 million by the middle of the century. The Delta is already densely packed with about 4,000 people per square mile (2.6 square kilometer). Also hit would be Egypt’s food supply. Nearly half of Egypt’s crops, including wheat, bananas and rice, are grown in the Delta (click here for more information).


New Borders Feature in Action – January 27th, 2013 – EOSnap Celebrates its 6000th Post!

22.5N 31.7E

January 27th, 2013 Category: Clouds, Image of the day, Lakes

Egypt and Sudan – January 26th, 2013

Bolivia and Peru – January 26th, 2013

Mozambique – January 26th, 2013

USA – January 26th, 2013

Egypt, without borders

EOSnap celebrates our 6000th post by focusing on the new “borders” feature of the Chelys Satellite Rapid Response System (SRRS). The feature allows users to download satellite images that show not only a true, traditional view of the terrain below, but also the borders of countries. The feature is particularly useful for seeing the outline of land despite cloudcover. It can also be used to show the location of lakes.

In the main image, the border between Egypt and Sudan is clearly visible as a horizontal line. The contours of Lake Nasser, which would otherwise be invisible except for its southern tip due to heavy cloud cover (see thumbnail image “Egypt, without borders” for a look at the original, borderless image), are easily distinguishable, highlighted in blue. The thumbnail image of Mozambique shows the country’s shoreline despite an area of convection, in this case a potential area of cyclone formation, looming over the coast. The thumbnail image of Bolivia and Peru focuses on Lake Titicaca, and clearly shows where the lake is divided between the two countries. The thumbnail image of southern USA, in addition to sediments from the Mississippi River, shows the border between Louisiana (right) and Texas (left), as well as the Toledo Bend Reservoir, despite the thick clouds covering the upper half of the image.