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UNESCO Implementing Mauritius Strategy |
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| UNESCO at Mauritius '05 | |
| From Barbados'94 to Mauritius'05 | |
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| | Freshwater lens |
An idealized cross-section through a typical limestone or coral island, showing the main features of a freshwater lens. In most cases, the thickest part of the freshwater lens is not in the centre as shown, but is displaced towards the lagoon side. This is due to the lower permeability sediments on the lagoon side slowing down the mixing of the freshwater and sea-water, thus enabling a thicker freshwater zone to develop. The graphic features in ‘Small Tropical Islands: Water Resources of Paradise Lost’, one of a series of illustrated non-technical IHP reports on water-related issues of the humid tropics and other warm humid regions.
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CHAPTERS
