Sandstorms - sandstorm - has long been shrouded in dark halo. No wonder they have a name - "sandstorm" means poison, poisoned. And these storms really ruined the whole caravans.
Simoom observed in the deserts of North Africa and the Arabian Peninsula and has the most western and south-western direction. Basically there in spring and summer.
"For an hour or half an hour before the rise merciless storm, bright sun fades, clouded by the murky haze. On the horizon appears a little dark cloud. It is growing rapidly, covering the blue sky. Here are the first violent gust blew hot, stinging wind. And a minute later pales day. Clouds of burning sand mercilessly flogged all living things, closed the midday sun. In the howling and whistling of the wind disappear all other sounds. It seems that the air itself turns against you ... "- This is the description of a sandstorm, this ancient Greek historian Herodotus
Nowadays, when the desert is crossed by roads, and above them in all directions lie airways death on the great caravan routes no longer threatens travelers.
So, in 1805, sandstorm, according to many authors, sanded two thousand and eighteen hundred camels. It is quite possible, the same storm killed 525 BC the army of the Persian king Cambyses, which Herodotus wrote
It happens that the testimonies of people who have undergone the test element, sin exaggerations. But, of course - is very dangerous sandstorm
The fine sand dust that raises strong wind penetrates the ears, eyes, nose, throat, lungs
Saving lives, people lie on the ground and tightly closed head clothing. It happens that from suffocation and heat, often reaching up to fifty degrees, they lose consciousness.
Many desert storm owe their birth passing cyclones that offend, and deserts. There is another reason - in the desert in the hottest time of the year is reduced to atmospheric pressure. Hot sands strongly heated air near the ground. As a result, he rises, and in its place rush with a very high flow rate, a cold dense air. Formed small local cyclones, sandstorms give birth.
According to environmentalists, in recent years, sandstorms occur ten times more than it was fifty years ago ... Only in Mauritania, in which case more than two sandstorms a year in the early sixties, now there is more than eighty ...