The concept

Thanks to this katabatic tower, we can use seawater in large quantities to cool and humidify the warm, dry ambient air from 40℃ down to 20℃ and raise the relative humidity close to 100 %.

The huge volume of fresh and humid air thus produced, is distributed naturally falling towards the ground by its own weight, cooling the soil and benefiting the vegetation by preserving moisture and avoiding the hydric stress of plants.

The system therefore favours the natural growth of trees, bushes and herbs, and the fertility of soils, contributing to the capture of atmospheric carbon and depositing it in the soil.

The concept is based on a series of innovative ideas in the fields of agriculture, plant biology, thermodynamics and fluid mechanics working together around a simple technical device such as a katabatic tower. A katabatic tower is simply the opposite of a chimney. Imagine an open ended cylinder placed vertically.

Contrary to a chimney inside a katabatic tower, a cold flow of humid air descends because it has a higher density than the surrounding air. The mass of cold air is obtained in a very simple manner by mixing and evaporating water, which can also be sea water, with the warm dry ambient air typical of arid and desert areas.

The idea is to place the katabatic tower in arid, semiarid or desert territories. In such places there are typically high temperatures and very low relative humidity e.g. 40℃ and roughy less than 30 % Relative Humidity.

Such conditions are common for example during the summer around the Mediterranean basin, the American South West in Australia or the Sahara.

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