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Water I
The huge Cuvelai delta,
draining part of southern Angola, brings both water and fish into the
region when it flows. A medium or high flow, or efundja, occurs in about
four out of every ten years on average. A good deal of surface water in
the region also forms as a result of local rainfall. The availability of
water had, and continues to have, a major impact on where people live,
and it was access to water in the Cuvelai that allowed people to settle
there permanently, hundreds of years ago. Until a few decades ago,
people depended entirely on water drawn from shallow wells during dry
periods. More recently, an extensive network of pipelines supplying
water from the Kunene River provides a large proportion of the
population with water, while other people obtain it from deep boreholes.
About 15% of the population live beyond the reach of the existing and
planned network of pipelines and boreholes. The boreholes tap water from
a variety of different aquifers, but the main aquifers in the central
areas hold water that is generally too salty for human consumption.
Illustrations:
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The Cuvelai drainage
systems
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Surface waters around
Oshakati and Ondangwa
-
Flow in the Cuvelai
delta for 44 of the past 58 years
-
A cross-section between
Ondangwa and Tsumeb showing the different aquifers
-
Water levels in Lake
Otjikoto
-
Levels of water below
the ground
To view the illustration in
more detail, click on the thumbnail.
 The
Cuvelai, and neighbouring Kunene and Okavango drainage systems (476 KB)
download jpg image
 Surface
waters around Oshakati and Ondangwa (314 KB)
download jpg image
Flow in the Cuvelai delta for 44 of the past 58 years (138 KB)
download jpg image
 A
cross-section between Ondangwa and Tsumeb showing the different aquifers
(133 KB)
download
jpg image
 Water
levels in Lake Otjikoto (127 KB)
download jpg image
 Levels
of water below the ground (71 KB)
download jpg
image
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