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Lights in the night sea

18.03.2010

Hundreds of thousands of migratory birds are killed every spring and autumn while crossing the North Sea.

The lights of numerous drilling platforms for oil and gas production disturb the orientation of the birds, leading them astray. And in those cases when a flare of associated gas burns on the platform, the birds can die in the fire. Physiologists have determined that birds are much less sensitive to blue and green light than they are to white, yellow, and red lights common to offshore platforms.

However, experiments on offshore drilling rigs by a Dutch oil company have shown that blue light has a sleep-inducing effect on night shift workers. Therefore, lighting engineers, in collaboration with physiologists and environmentalists, have developed special lamps and signal lights, the spectrum of which is shifted to the blue-green region.

As a result, the number of birds deviating towards the drilling platforms on which new lamps are installed decreased by 2-10 times as a result.

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