Rain of blood in Greece, a terrifying phenomenon with scientific explanation

The rain of blood is a strange phenomenon that is occurring in Greece, but it has a scientific explanation. We tell you everything below.

Yellow-orange dust clouds from the Sahara Desert are covering many parts of Greece.

In the media, this strange event was nicknamed "blood rain", but in reality it is an increasingly common phenomenon in southern Europe and has a very logical explanation. You may have seen roads and cars covered in a thin layer of orange dust, even entire cities. There is an explanation for this: the south wind carries dust particles from the Sahara Desert.

Saharan dust is present in the North Atlantic all year round, but in late spring it becomes visible, especially in the Caribbean and northern South America, making the colors at dawn more intense and vibrant as well as at dusk and With it also comes the phenomenon known as blood rain.

blood rain

This is the curious explanation behind the terrifying "blood rain" phenomenon

Athens and other areas of southern Greece were covered by a large cloud of dust from the Sahara Desert, which turned some areas orange. Such was the airborne dust that entered the country on Tuesday from Africa, leaving behind incredible images that users even jokingly called a "Mars-like" event.

But in reality the air mass in which the Saharan dust moves is between 3 and 4 kilometers thick and 1,5 kilometers high, it is warm and dry, and with rain and wind the particles move until they cover red dust houses, cars and terraces.

blood rain

Blood rain, as the phenomenon is known, is not drops of blood that fall to the sky but the sand of the Sahara desert that creates that red color that reminds us of this liquid, since its intensity depends on the condensation of the dust in the air.

Saharan dust, rich in iron oxides, gives the water a reddish color reminiscent of blood, hence the name.

We usually see the blue sky because, of all the colors, this is the one dispersed by the molecules of the atmosphere, with the exception of sunrises and sunsets, where reddish and orange tones predominate because the sun's rays pass through a greater volume of atmosphere.

In this way, when dust concentrations are high, the sun's rays interact with these particles, creating a filter that enhances the warm tones of the sky, allowing us to see the nuances present in the flames of the fire.

So, is blood rain the result of heat from the atmosphere combined with dust?

The droplets in our atmosphere are not only made of water, but they also need "condensation nuclei" to grow and fall under their own weight. These nuclei can be mineral salts, organic matter, bacteria or suspended dust.

The surface heats up, the particles float and are carried long distances by the wind. Well, once these particles are suspended, they add to water droplets that evaporate and fall as dust, and this in turn changes the color of the air.

Although this phenomenon makes us feel like we are in a science fiction movie, the truth is that this type of rain is very beneficial for agricultural lands and crops in general. Desert sand provides vegetation with many nutrients.


With information of: https://www.tiempo.com/