Essay on Sand Dunes for Students & Children’s in English

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Essay on Sand Dunes is a number of nature’s most scintillating creations. These conspicuous landmasses are found around the globe in numerous weather conditions.

They’re not solely restricted to deserts, however,  will form in any landscape on the earth’s surface provided the conditions must be right.

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What is Sand Dunes?

Each ridge is made as a result of the interaction between the wind and soil within the type of sand grains. There are some ways thrill-seekers will explore sand-dunes, as an example, slippy down the dunes, Bird viewing in wetlands, skiing, sandboarding or simply sledding on the sand slopes. Skydivers or those on airplanes expertise verity great thing about Essay on Sand Dunes.

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A sand-dune may be a tiny ridge of the hill of sand found in a very desert or on prime of a beach. Once they form on a beach, they’re usually on top of the traditional most reach of the waves. They build from many finely divided sand particles that are blown by the wind and find deposited against some obstacle like a chunk of driftwood, bush or rock.

Reason for Forming of Sand Dunes:

In the method of wind moving sand particles up the sandbox, the pile becomes severely steep that it starts to collapse because of the impact of its own weight. This ends up in the mass movement of sand down the slip face. The collapsing of the sandbox can stop the instant the slip face attains the desired angle of abruptness. Once the proper angle is achieved, the dune becomes stable. the proper angle needed for the soundness of a ridge, higher identified by scientists as ‘’angle of repose,” is often roughly thirty to thirty-four degrees.

When enough sand has accumulated around the obstacle, the ridge turns into an obstacle itself, and its growth continues. Sand-dunes can grow into variable shapes and sizes reckoning on the direction and speed of the wind. High-speed winds are related to taller sand-dunes. Low-velocity winds, on the opposite hand, tend to unfold the dunes out. If wind direction remains the same over the years, the sand dunes can form towards that direction. Any vegetation that comes up can hold up the ridge, helpful it and can forestall any chance of shifting.

The exhilarating reality concerning sand-dunes is that they’re able to migrate. this provides them a way of liveliness. However, migration of sand dunes isn’t received well by the natives because it endangers local cities and agriculture. In a very country like China, sand dunes have intimate with monumental migrations to near villages. The villagers have satisfied this threat by building fences to arrest these sand dunes. higher still, most of the people go the additional mile of soaking the sand dunes with petroleum to stop their migration. Some areas have even rumored collision of migrating sand dunes, resulting in large Essay on Sand Dunes.

What are Different Types of Sand Dunes?

There are five different types of sand dunes form which are given below:

  • The Composite Dunes
  • The Linear Dunes
  • The Blowout Dunes
  • The Traverse Dunes
  • The Barchan Dunes


This is a mix of 2 or a lot of reasonable dunes. Composite dunes culminate in terribly rough, massive and tall kinds of dunes referred to as dramas. They’re normally a mix of linear and traverse dunes that accumulate up to four hundred meters high. These large sand dunes travel lots less slowly (about z-2 meter every year) than their smaller counterparts. They culminate into wide sand dune fields called ergs.

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Linear dunes are normally parallel to the wind direction and end in long, straight ridges. Linear dunes will grow or accumulate as tall as a hundred meters and extend for several kilometers. Geologists have recognized that these types of dunes are triggered by winds that travel from one direction in one season of the year and later shift and travel from a separate direction (southwest) throughout another season of the year. Linear sand dunes usually move easterly forming an extended and skinny form.


Their shapes are specifically opposite of barchans dunes. In blowout sand dune, the slip face and rounded curve face-off from the wind. The obstacle that permits the formation of blowout dunes is vegetation, however attributable to sand accumulation over the years, the vegetation forms mildew resulting in a stable sand dune.


These sorts type long lines of ridged dunes that are at right angles to the direction of the wind. They feature steep slip faces at their back. They usually occur in areas with bountiful provide sand and fewer vegetation. Dunes that form on beach areas are traverse dunes and are as a result of sturdy winds emanating from the ocean. If you progress further interior, you tend to stumble across a lot of vegetation.



It’s generally known as barchan sand dune or crescentic dune. Because the name suggests, it’s semilunar and made as a result of the action of the wind majorly from one direction. It’s the foremost common reasonably sand dune that happens in sandy deserts across the world. Barchans, on varied occasions, occur in teams. However, on a few occasions, they occur singly.

How are Sand Dunes Formed?

The deposition of sand should occur faster than the obstruction material is scoured to modify the build of sand.
There should be an abounding offer of sand transported to the beach from longshore drift.
There should be a large variation between high and low tides so once the tide subsides, an oversized space of land is exposed and might dry intent on change the wind to select up the sediments.
Energy for movement, that is powerful winds to move sand particles. However, dunes may also form underwater in rivers.
An obstructed or obstacle, as an example, a bit of wood or rock to permit the accumulation of sand. Areas with distributed vegetation tend to make several dunes.
Dry climate: Wetness sometimes causes grains of sand to bond along. Massive grains present challenges throughout wind transportation. in addition, wetness helps plant growth. Plant growth stabilizes loose sediment and stops its movement Essay on Sand Dunes.