Describe how sand dunes are formed on beaches and hard surfaces

Namibia has allowed a high -resistant laser scan scientists to describe how small sand dunes are formed, there are no deserts in the desert But on the beaches or hard surfaces.

Southampton, Oxford, Laforro (United Kingdom), Paris (France), Illinois and Denver (USA) have discovered a group of international researchers that move on the most difficult and integrated surfaces with members of the Universities Is over -thrust and transported Very easy to create doubts.

When it descends on a soft and more unknown surface, the sand is formed Small hills, or “prototonas”In an article collected on Monday in the press, researchers are defined by researchers Activities of the National Science Academy.

Different creation for desert hills

Until now, scientists They could not use their knowledge How the deserted hills are made of this smallest to be found on the beaches in general.

“The theory that the great hills of the Sahara Desert are formed as part of the site Almost unlimited amount of soft sand And the air collects and dry the deposit. But this does not explain how small dunes are formed on wet surfaces such as the beach or hard gravel areas, ”says Joe Needt, a researcher at Southampton University, one of the writers.

According to Professor Nildin, “on this humid or hard surfaces, sand This is not just for rolling through the terrain. “

“Once the sand pump has begun to form, it affects it Air formsIt adds more sand and helps to grow for sand, ”Southampton University researcher says in a central statement. Can go from zero to six centimeters In half an hour. In addition, they disappear fast when they are exposed.

Tunar breeding computer model

This new theory, in accordance with the captured high -efficiency data, was created by researchers at the University of Paris, which creates a computer model Mechanics The hills. Researchers in dry conditions such as Namibia have been able to recreate this model what they have noticed in their field studies, but In spite of wet circumstancesColorado (USA) or Norbog (United Kingdom).

This model allows equipment to adjust different parameters such as sand and air Views that make up different dunes. Teachers believe that their inventions will help to describe how these dunes are formed on Mars and other planets.