sand dune

This image shows part of a polar crater that still holds on to some summer ice, as well as beautiful sand dunes sculpted by the wind.

Seen through the "eyes" of a satellite sensor, ribbons of Saharan sand dunes seem to glow in sunset colors.

They are often so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes.

The Sahara has not always been a wilderness of sand dunes.

In arid and semi-arid zones, appearance of microbiotic crusts will change the surface condition of sand dunes greatly.

With a knowledgeable guide behind the wheel of your luxury four-wheel drive, you approach a sea of golden sand dunes.

Though they cover just 30 square miles, the dunes reach up to 750 feet high and are the tallest sand dunes in the United States.

On a four-wheel drive they explored the sand dunes around Dubai, camel riding and a falcon show were also part of the action.

For Father's Day, my parents drove to Denver and we packed up the camping gear for a fun weekend at The Great Sand Dunes.

Alone have the wealth, beauty, honor, and the talent and learning, life will only be like the vast expanse of desert sand dunes.

Cano went back to his lab and pursued other research, like testing petroleum-degrading bacteria in sand dunes.

As I said earlier, it looked very much like Earth, so you see sand dunes.

Gaza (CNN) -- With faces covered and guns loaded, Palestinian militants are training among the sand dunes of Gaza.

Currently most of its terrain is made up of desert plains and sand dunes with some savanna around the Niger river.

This small reptile, which measures just 10 centimeters long, can swim through the sand dunes at up to 15 centimeters per second.

Sun is also the color of its sand dunes and the sky will be shining all hooded, become chaotic, heavy orange.

No one know, this young man is silent, fell down before lining in the sand dunes complete ruins, was his gods which.

Because the sand will run with the wind. Layers of sand dunes will move over and change into different forms.

the area surrounding the city, bereft of its life giving water, became barren, gradually becoming covered by sand dunes.

so we took off running for the direction of the sand dunes towards the road.

While the Sahara Desert is a wonderful place to see for the wide expanse of sand dunes, the sunset there is sure to take your breath away.

Sand dunes sprawl along the coast of northeastern Brazil, sometimes extending kilometers inland.

Today life-size metal silhouettes of fighting soldiers lurk among the tall grasses in the sand dunes.

South of the river, sand dunes predominate, but the vegetation along the Kuiseb River prevents the dunes from advancing northward.

In western Mongolia, braided streams of sand dunes stretch east-west across the arid landscape.

Bulldozers have already cut a road through the cliffs, flattened sand dunes and torn up vegetation to create housing blocks.

Three dimensional quantitative simulations on the formation and evolution of aeolian sand ripples and sand dunes are presented.

Ergs are vast expanses of sand dunes like this area in Oman.

Turtles basked in the sun on the white sand dunes that lined the rivers.

Rather, visitors can find an outback adventure amongst red sand dunes , hidden oases and desert scenery hosting a wealth of flora and fauna.

Late afternoon light glints off the sand dunes in the Rub' al Khali (Empty Quarter) desert.

The new protected areas will encompass a mosaic of savannas covering ancient sand dunes, riverside forests, and swamp forests.

Photograph by Tracy Christmas A boy searches for the best surfing spot amongst the sand dunes of Lencois Maranhenses in Brazil.

Encouraged to bloom by rare rainstorms , a sea of wildflowers blankets the sand dunes of Australia's Simpson Desert National Park.

The light colored region surrounding the brain-textured region is likely sand dunes sculpted by winds.

Strong winds create huge sand dunes near the water, some of which are partly submerged.

Morning light breaks through the clouds. Great Sand Dunes National Park, Colorado.

There are also campsites by the sea, which are hidden from the beach by a lion of sand dunes , or a thick belt of trees.

Dark rippled sand dunes are highlighted against the Columbia Hills in the above opening image.

The water was sparkling blue and the sand dunes radiated with an inviting warmth of gold.

The combination of shifting sand- dunes , tropical rainforests and lakes makes it an exceptional site.

To the southeast lies the spectacular Khor al Adaid or "Inland Sea" , an area of rolling sand dunes surrounding an inlet of the Gulf.

Along the southern shore, sand dunes approach the lake in just two locations.

A dune buggy is a recreational vehicle with large wheels, and wide tires, designed for use on sand dunes or beaches.

Scientists have unearthed a completely new species of spider hiding in sand dunes on the Israel-Jordan border.

In recent weeks, Aruban police have searched sand dunes on the northern coast of the island.

But it is an optical illusion - they are sand dunes coated with a thin layer of frozen CO2.

The salt-loving tall grass thrives in beach ecosystems and helps to form and protect sand dunes by collecting windblown grains.

The driest region , in the extreme southwest, has active sand dunes and very sparse vegetation .

Camel-colored sand dunes ripple along the lake's northern shore.

The east of Lancelin town is bordered by endless snow-white sand dunes, which are heaven for sand borders.

Sand dunes, sandy steppes. N Xinjiang [Kazakhstan, Pakistan; SW Asia].

Most of the exterior scenes set in Afghanistan were filmed at Olancha Sand Dunes. There, the crew had to endure two days of 40-60 mph winds.

Sandy places on river banks, sandy slopes, lowlands between mobile sand dunes; ca. 1300 m. Nei Mongol, Ningxia, NW Shaanxi.

the percentage of the world's largest sand dunes in the desert area - the Taklimakan Desert.

During their journey they came upon many sand dunes piled up by the winds.

Now, sand dunes cover only about one fifth of our deserts.

This journey marks my first visit to the palatial sand dunes of Sossusvlei.

Sunset in Jericoacoara nothern Brasil. Travellers line the giant sand dunes every evening during this time to watch the event.

She sat in the sand dunes waiting for the beloved, waited for three days and three nights finally wait to him -- is Gu p5.

Seashore sand dunes. Liaoning [native to America].

The probe was studying the vast region of sand dunes in the high northern latitudes on Mars.

Considered one of the world's oldest deserts, the Namib contains sand dunes that reach some 1, 000 feet (305 meters) in height.

Coastal plain, decollement more for sand dunes, lagoons and swamp, north the room with a cliff linhai.

We began learning about landforms like canyons, and sand dunes.

Beach grass sprouts from sand dunes at Cape Hatteras in North Carolina.

Jeeps negotiating sand dunes on jeep safari in Arabian Desert.

Wind polishes Egypt's Western Desert sand dunes to fine alabaster.

You can see some unusual and beautiful plants and flowers growing in the sand dunes .

The coastal plain consists mainly of sand dunes and polders.

Wild camels and sand dunes in empty southeast quarter of Qatar.

Spring has sprung on Mars, bring with itthe disappearance of carbon dioxide ice (dry ice) that covers the northpolar sand dunes.

A few kinds of plants grow quickly to survive burial by the moving sand dunes.

He then added photos of his uncle's farm, the Libyan desert with its sand dunes, palm trees, dams and thousands of years old clay cities.

The term erg is derived from an Arabic word for a field of sand dunes.

The desert is there, sand dunes, some small field.

I didn't know there were sand dunes that would take over an hour to climb.

The curvy sand dunes on Feicui Island appear more graceful .

Gravel slopes and sand dunes; 2300--2700 m. NW Xinjiang (Altay Shan) [Mongolia, Russia].

Winds push the sand dunes eastward past Har Nuur and the nearby mountains.

Why is marram grass planted on sand dunes?

The ripples it shows are sand dunes more than 100 metres high.

In between, sand dunes march past Har Nuur, or "Black Lake. "

In the left hand picture, people are fleeing from voracious sand dunes because they cut down all the trees.

The flag stick and the sand dunes matched.

Wonderful view of water embraced sand dunes---Sand Lake in Ningxia, famous scenic spot in China.

A study says a desert in China's Inner Mongolia that has the highest sand dunes in the world hold a vast store of underground water .

you cannot see the sun, and the wind is so metimes strong enough to move sand dunes

With its clear blue water and towering sand dunes, Main Beach provides the perfect blend of nature and built environment, Leatherman said

Forests, grasslands, stream edges, stony mountain grasslands, dry steppes, sand dunes, grasslands, mountain summit steppes;

The impact of microhabitats on the temporal and spatial patterns of seedling emergence in Mediterranean coastal sand dunes

The Analysis on Vegetation Community Characteristics in Fixed Sand Dunes in Duolun Farming-Pastoral Zone of Inner Mongolia

Ecological Characteristics of Dominant Species During Stabilization of Mobile Sand Dunes

Comparative Research on Microbial Biomass and Number in Soil Microbiotic Crust of Different Fixing Sand Dunes

Stony or dry slopes, sandy areas and pebbly valleys of steppes, sand dunes, margins of cultivated land, stony river banks;

Variation of Soil Temperature and Thermal Diffusivity in Vegetated and Bare Sand Dunes in Arid Desert Region

Microflora Dynamic in Microbiotic Crust Layer of Fixed Sand Dunes in Shapotou Region, Tengger Desert

Environmental Conditions for the Formation and Development of Sand Dunes (Waves) in the Continental Shelf

Motion Characteristics of Precipitation in Sand Dunes--A case study in Minqin sandy area, Gansu

Desert: Great Sand Dunes National Park, September - the tallest dunes in North America

Estimation of Sand Dunes Movement in the Northern Part of Shaanxi Province, China

Impact of Evolvement of Soil-plant System on Engineering of Mobile Sand Dunes Control

Studies on the Soil Water Dynamic and the Characteristics of Soil Water Potential in the Drifting Sand Dunes in Wulanbuhe Desert

an area the size of Germany covered in sand dunes through which the Silk Road traversed

Sand Dunes Hazard and Countermeasures in North Area of Shenyang

A quantitative analysis on fixing extent of aeolian sand-dunes

Great Sand Dunes National Park and Preserve, Colorado

Hoar Frost on High Dune, Great Sand Dunes National Park and Preserve

Where the sand dunes stretch unbroken

Dynamics of unusual debris flows on Martian sand dunes

Calibration of neutron probe in soil of mobile sand dunes

Thickets or forests on rocky mountains, sand dunes; 400-1400 m. Heilongjiang [Korea, ? Mongolia, E Russia]

sliding down sand dunes on Kangaroo Island;

Starting with the world's tallest sand dunes

Sand dunes in hot deserts