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Inner Niger Delta on Border of Sahara and Sahel, Mali

14.9N 4.2W

October 28th, 2011 Category: Deserts, Rivers, Wetlands

Mali - October 28th, 2011

The orange and golden sands of the Sahara Desert (above) gradually give way to the less arid Sahel (below) in western Africa. Visible at the right edge in the semi-arid Sahel area of central Mali, just south of the Sahara desert, is the Inner Niger Delta.

The delta, also known as the Macina, is a large area of lakes and floodplains that consists of the middle course of the Niger River. Most of the year the area has a hot and dry climate, with hot winds from the nearby Sahara raising the temperature up to 40° C. During the wet season, which lasts from July to September but lasts longer the further south one goes, the swamp floods into a lake and naturally irrigates the land. When the dry season comes, the Macina turns into a network of lakes and channels.

Vegetation Index Near Lakes Ghana and Kainji, Ghana and Nigeria

7.1N 0.1E

October 25th, 2011 Category: Lakes, Rivers, Vegetation Index

Ghana, Togo, Benin, Nigeria - October 24th, 2011

This FAPAR image shows the vegetation index of Ghana, Togo, Benin and Nigeria (left to right along the coast). Visible to the left is Lake Volta, in Ghana, and visible at the upper right is Lake Kainji, on the Niger River, in Nigeria.

The vegetation index is generally good (green) throughout the image. However, there are some areas of high photosynthetic activity (rusty red), particuarly in the vicinity of Lake Volta.

Inner Niger Delta South of Sahara Desert, Mali

13.9N 5.4W

October 14th, 2011 Category: Deserts, Rivers, Wetlands

Mali - October 8th, 2011

The green area at the bottom center is the Inner Niger Delta, also known as the Macina. It is a large area of lakes and floodplains in the semi-arid Sahel area of central Mali, just south of the Sahara desert (visible as a tan, sandy expanse occupying the upper part of the image).

The delta consists of the middle course of the Niger River, between the bifurcated Niger and its tributary, the Bani, which from here run north towards the desert. The Niger is the longest river in West Africa.

Port Harcourt in Niger River Delta Area, Nigeria – October 5th, 2011

4.7N 7.0E

October 5th, 2011 Category: Image of the day, Rivers

Nigeria - October 3rd, 2011

This orthorectified image shows the confluence of the Niger and Benue Rivers (top). The Niger can then be seen flowing southward through Nigeria, discharging through a massive delta, known as the Niger Delta or the Oil Rivers, into the Gulf of Guinea in the Atlantic Ocean.

Also visible near the coast is Port Harcourt, the capital of Rivers State, Nigeria. Visible as a white area near the shoreline in the center bottom part of the image, it lies along the Bonny River and is located in the Niger Delta.

Kainji Lake in Western Nigeria

10.3N 4.6E

July 8th, 2011 Category: Lakes, Rivers

Nigeria - July 7th, 2011

This image focuses on the border area by Nigeria (right), Benin (left) and Niger (above). The land in Niger appears significantly more arid than that of its southern neighbors.

Visible in western Nigeria, in the lower right quadrant, is Kainji Lake, a reservoir on the Niger River, formed by the Kainji Dam. The dam generates power for most towns in Nigeria.