Deserts of Australia: Complete Guide to 10 Australian (Oceanian) Deserts

Australia’s desert belt includes far more than red sand. The 10 Australian deserts cover about 1,371,000 square kilometres, or roughly 18% of mainland Australia, and include several distinct landscape types. Long dune corridors occur beside gibber plains, floodouts, salt lakes, clay pans, and old river systems that may carry water after rain.

10 articles in Oceania (Australia)

Australia’s mainland deserts differ sharply in landform, rainfall, vegetation, and drainage. Dune fields, gibber plains, salt lakes, floodouts, spinifex grasslands, mulga woodland, and bare stone can all occur within the country’s arid interior.

Named deserts and broader conservation bioregions do not always match neatly in size. Broader bioregion climate data is therefore best treated as regional context rather than as a direct substitute for measurements from the named desert itself.

Australian geographic listings commonly recognize 10 mainland deserts: Great Victoria, Great Sandy, Tanami, Simpson, Gibson, Little Sandy, Strzelecki, Sturt Stony, Tirari, and Pedirka. They extend across the arid interior from Western Australia to the Lake Eyre Basin.

What Counts as a Desert in Australia?

In a broad physical sense, a desert is an area with very low precipitation. In Australia, the simple version is easy enough: dry country, low rain, high evaporation, sparse cover. Yet the line is not as neat on the ground as it looks on paper. Australian deserts can receive under 250 to 500 millimetres of precipitation a year depending on the classification used, but rainfall is so uneven from season to season that one wet spell can briefly hide the long dry pattern.

Named deserts in Australia are not defined only by bare sand or by one annual rainfall number. Surface form, vegetation structure, drainage, and regional climate also differ across the arid interior. One desert may be dominated by parallel dunes, another by hard stony plains, while others combine dunes, salt lakes, clay pans, and flood-carved channels.

Australia’s deserts are not empty of plants. Large parts of the interior support spinifex hummock grasslands, mulga shrublands, chenopod country, coolibah-lined watercourses, and short-lived herb growth after rain. Pure lifeless sand does not describe most of the continent’s arid zone.

Why the Number Is 10

The conventional count of 10 Australian deserts refers to named geographic desert regions rather than every dry subregion or conservation unit. This is why other arid-zone maps may show additional ecological or geomorphic divisions without changing the standard count of named mainland deserts.

Desert names, IBRA bioregions, and geomorphic dunefields do not always line up perfectly. The Great Sandy Desert, Great Victoria Desert, Gibson Desert, and several others have named desert areas as well as broader bioregions used in ecological reporting. Boundaries can therefore vary between geological, ecological, and geographic maps because each mapping system uses different criteria.

Why Australian Deserts Often Look Green After Rain

Arid does not mean dead, and it does not mean static. Ephemeral rain can flip a desert surface from dusty and quiet to grassy and flowered in a short span of time. Floodwater from distant catchments can spread into swamps, lignum flats, or dune-edge creeks, especially in the Lake Eyre Basin. Then it dries again. That stop-start rhythm is one of the central traits of the Australian interior.

Conditions in Australia’s deserts are highly variable. One year may be dry enough for dust to dominate the view. A run of wet years can build fuel loads, fill swales, trigger bird breeding, and produce bursts of annual vegetation in the same region.

Where the 10 Australian Deserts Are

Most of Australia’s named deserts sit in the interior and western half of the continent. Western Australia holds the largest cluster, with the Great Victoria, Great Sandy, Gibson, and Little Sandy deserts all lying partly or wholly there. Farther east, the Simpson, Strzelecki, Tirari, Sturt Stony, and Pedirka deserts tie into the wider Lake Eyre Basin and the dry South Australian outback. The Tanami links the Northern Territory and Western Australia across a broad band of central dry country.

Geography matters here because the deserts are not isolated islands. They touch, grade, and overlap in character. The Simpson and Strzelecki are separated in part by the stony country of Sturt Stony Desert. Tirari sits beside Lake Eyre margins and river distributaries. Great Sandy and Little Sandy have clear identities, but both belong to the wider Western Australian drylands shaped by dunes, spinifex, and low woodlands.

Why Australian Deserts Do Not All Look the Same

The first big difference is sand versus stone. Deserts such as the Simpson, Great Sandy, Great Victoria, Little Sandy, and Strzelecki are read mostly through dunes and sandy plains. Sturt Stony Desert is different. It is known for gibber, a desert pavement of weathered stones that armours the ground and creates a flat, open, almost metallic-looking surface under harsh light.

The second difference is water behavior. In some deserts, rain mostly vanishes into sand and sparse drainage. In others, water arrives from somewhere else. The Strzelecki and Tirari deserts are tied to the distributaries of Cooper Creek. Parts of the Simpson sit near floodouts and natural springs linked to the Great Artesian Basin. That is why some of the driest-looking country in Australia can still hold remarkable biological refuges when conditions align.

The third difference is north-south climate contrast. Northern deserts such as the Tanami and Great Sandy feel some monsoonal influence, with rain tending to be more summer-dominant. Southern deserts like the Great Victoria or Sturt Stony sit in a drier, less forgiving rain regime, though all of them share high variability. A desert may be hot and sandy in both places, yes, but not in the same way.

Vegetation also changes across the desert belt. Spinifex dominates many arid landscapes, alongside mulga, chenopods, gidgee, coolibah, marble gum, acacia shrub steppe, and floodplain shrubs. These communities grade into one another according to soil, rainfall, drainage, and landform.

The 10 Australian Deserts

Great Victoria Desert

Great Victoria Desert is the largest named desert in Australia, with an area of 348,750 km². It stretches across Western Australia and South Australia, forming a vast southern arid belt that blends dune country, salt-lake basins, and broad dry plains. It is often pictured as pure sand, although its landforms are much more varied. This desert is a patchwork of dunefields, playa lakes, lunettes, spinifex plains, and scattered shrublands.

In regional ecological reporting, the broader Great Victoria bioregion records a median rainfall of about 162 mm. Rainfall is low and highly variable. Wetter years can trigger rapid growth of grasses and annual herbs, followed by greater fire potential as fuel builds, while dry years sharply reduce plant growth.

The broader bioregion is dominated by spinifex grassland mixed with marble gum, mulga, and other woody plants. The Great Victoria is therefore a vegetated Australian dryland rather than a largely bare erg. Plant cover is often low, but it helps stabilize dunes that would otherwise be more mobile.

Only about 8% of the wider bioregion is grazed. Most of it remains remote from permanent or semi-permanent stock water, contributing to sparse access, low settlement density, and limited pastoral use across large areas.

The Great Victoria also matters because it sits between better-known landscapes. To its north are other sandy systems. To its south, the land grades toward the Nullarbor and southern drylands. It works as a bridge in the continental arid belt, and in geological terms its dunefields show how Australian deserts do not begin and end in neat textbook blocks. Across the dry interior, these landforms merge, thin, reappear, and change character from one region to another.

Great Sandy Desert

Great Sandy Desert covers 267,250 km² and ranks as the second largest of the 10 Australian deserts. It lies mainly in north-central Western Australia, with a broader desert setting that edges toward the Northern Territory. The surface is built from red sand plains, dunefields, and remnant rocky outcrops, which gives it a slightly rougher and more varied profile than many short summaries suggest.

The wider Great Sandy bioregion records a median rainfall near 223 mm, with an arid tropical climate in the north grading toward a more temperate-subtropical pattern in the south. That north-south shift matters. It means the Great Sandy is not just large in area; it also spans a real climate transition inside Australia’s drylands. In practical terms, rain stays unreliable, but its seasonality and feel can change from one sector to another.

Vegetation in the broader region is led by spinifex grasslands, low woodlands, and shrubs. That combination shapes the look of the Great Sandy: low, repeated forms rather than tall relief; hard horizons; vegetation that seems sparse at first and then starts to sort itself into distinct patterns across dunes, interdunes, and firmer ground. The result is predominantly low-relief, open country with broad horizontal views.

Only about 7% of the wider bioregion is grazed, reflecting how remote and lightly used much of it remains. Ecological reporting for the same region also records 24 threatened mammal species in the broader bioregion, including several already lost from it. Arid fauna can be vulnerable to altered fire regimes, invasive predators, and habitat disturbance.

The Great Sandy differs from the Little Sandy to its south and the Tanami farther east through its larger scale and broader climatic reach. Red dune country dominates, but rainfall seasonality and vegetation change across the desert, especially toward its more northerly sectors.

Tanami Desert

Tanami Desert covers 184,500 km² across the Northern Territory and Western Australia. It occupies a broad inland position between northern drylands and the central arid interior, with sand plains, low ridges, alluvial flats, and stony rises rather than a continuous dune sea.

Regional reporting for the wider Tanami bioregion shows a median rainfall of about 298 mm, which is high by Australian desert standards but still consistent with a dry climate. The region has a semi-arid, monsoonal influence, with rainfall tending to fall in summer and strong year-to-year variability.

The broader Tanami landscape is dominated by spinifex hummock grassland with a sparse shrub layer. Pastoralism, gold mining, and tourism all appear in regional land use, and roughly a quarter of the wider bioregion is grazed. This is one of the clearer examples of an Australian desert that is both remote and worked, a place where industrial activity and very old dryland ecology occupy the same map.

Fire is one of the Tanami’s recurring ecological forces. During sequences of wetter years, vegetation growth can build enough fuel for broad burns, and regional data shows very large areas burnt in some seasons. Arid country can still experience extensive fire, especially in spinifex landscapes where wet years increase fuel loads and influence later fire patterns.

What makes the Tanami especially interesting is that it sits between common desert stereotypes. It is drier than the savannas to the north, but it still carries monsoonal fingerprints. It is sandy but less widely recognized than the Simpson, and its remoteness coexists with roads, mines, and pastoral use. The Tanami occupies a broad transition between the continent’s northern drylands and central arid interior.

Simpson Desert

Simpson Desert is the most famous dune desert in Australia, and with good reason. Its named area is 176,500 km², spread across the Northern Territory, South Australia, and Queensland. The Simpson is widely associated with long red sand ridges whose repeated geometry is especially clear on maps and aerial imagery.

Geologically and visually, the Simpson is known for its parallel sand dunes. It is widely regarded as one of the world’s clearest examples of a parallel dunal desert, and the dune field includes some of the longest parallel sand ridges on Earth, with certain ridges running for up to 200 kilometres. Heights vary across the system, with lower western dunes and taller eastern ones. That repeated ridge-and-swale pattern is the Simpson’s signature form.

The broader Simpson–Strzelecki dunefields region has a median rainfall of about 125 mm and includes the driest part of Australia. Rain usually arrives through unreliable summer storms. Some years provide enough moisture to green the swales and produce ephemeral herbs, while others remain extremely dry. Parts of the Simpson sit above the Great Artesian Basin, and spring systems around the desert margins create groundwater-fed habitat in otherwise very dry country.

The wider region also records a very high Dust Storm Index, plus broad grazing pressure along some margins, with about 49% of the wider Simpson–Strzelecki region grazed. At the same time, more than 15% of that wider region is protected within reserves. Those figures matter because they show the Simpson is not only scenic desert; it is also working rangeland, conservation land, and an active ecological system shaped by weather, livestock history, invasive species, and recovery after rain.

The Simpson is shaped by more than wind alone. Floodouts and buried drainage lines contribute to its structure, especially near northern and north-western sectors. The desert combines aeolian and fluvial processes, with wind-built ridges alongside drainage features formed or reworked by water.

Gibson Desert

Gibson Desert has a named desert area of 156,000 km² in Western Australia. It sits between the Great Sandy to the north and the Great Victoria to the south. The landscape combines sand plains, dunefields, and lateritic gibber plains, creating a transition between several western Australian dryland surface types.

In the wider Gibson bioregion, the median rainfall is around 163 mm. That places it in the same harsh rainfall class as several southern and central deserts, with low totals and large year-to-year swings. Vegetation is mainly mulga and mixed shrubs over spinifex. So while the Gibson is plainly arid, it is also structured by plant cover in ways people often underestimate. Bare ground exists, but so does organized vegetation across immense distances.

The Gibson has a very low human population in its broader bioregion and large areas of Aboriginal land, conservation land, and unallocated crown land. That low settlement density is one reason the Gibson remains less widely known than the Simpson despite being one of the largest deserts on the continent.

Fire patterns in the broader region are closely linked with rainfall. After wetter years, fuel loads can increase enough to support broader burns, especially through spinifex country. This rain-fire relationship influences vegetation structure and habitat patchiness across the Gibson.

The Gibson also shows why named desert boundaries should not be treated as sharply self-contained. The Gibson shares traits with both the Great Sandy and the Great Victoria, but it does not dissolve into either one. It has its own balance of stony ground, low shrubs, spinifex cover, and open relief. Across Western Australia’s arid interior, that balance is part of what gives each desert its own identity.

Little Sandy Desert

Little Sandy Desert covers 111,500 km² in Western Australia, south of the Great Sandy Desert. Although both deserts share dune-rich sandy terrain, the Little Sandy has its own mix of dunefields, low ranges, acacia shrub steppe, and spinifex cover.

The wider Little Sandy bioregion records a median rainfall near 178 mm. That keeps it firmly in Australia’s arid zone, though with a somewhat stronger summer rainfall pattern than the southernmost deserts. The land is mostly remote from stock water, and only about 2% of the wider bioregion is grazed. That low grazing footprint is one of the clearest technical clues to how isolated much of the Little Sandy remains.

Vegetation is led by acacia over spinifex, with sandy ridges, low woody cover, and hummock grassland across much of the landscape. In the broader reporting region, there were no known weed records at the time of assessment, consistent with its remoteness and relatively light modification.

Wet years can alter the Little Sandy quickly. In one reporting period, a notable share of the wider bioregion burned after above-average rainfall increased vegetation growth and fuel loads. Rainfall, biomass accumulation, fire, and recovery therefore form a recurring ecological sequence in the region.

Compared with the Great Sandy, the Little Sandy is smaller in area but still covers an extensive part of Western Australia’s arid interior. Over 111,000 square kilometres is still enormous country. Its lower rank reflects the exceptional scale of Australia’s larger deserts rather than a genuinely small landscape.

Strzelecki Desert

Strzelecki Desert covers 80,250 km² across South Australia, Queensland, and New South Wales. It sits in the north-eastern part of the Lake Eyre Basin. The Strzelecki is an orange-red dunefield where dunes occur alongside distributary channels, waterholes, swamps, and lake-margin systems.

In the broader Simpson–Strzelecki regional context, median rainfall is around 125 mm, with rain usually arriving in erratic summer events. Cooper Creek and its distributaries also shape parts of the desert. The Cooper Creek fan contains flowing-water deposits, alluvial sediments, dunes, and interdune depressions that have interacted over long periods. Wind shaped the ridges, while water repeatedly reworked channels, fans, and low-lying surfaces.

Geomorphically, the Strzelecki stretches for roughly 530 kilometres north to south and about 90 kilometres east to west in its broader dunefield form. It is bounded in places by elevated gibber country and by playas such as Lakes Blanche and Callabonna. That setting helps explain why the Strzelecki often feels different from the Simpson even when both are classed as sandy deserts. The Strzelecki is more entangled with distributaries, fans, and lake-edge processes.

These water-linked habitats allow the Strzelecki to support more biological diversity than rainfall totals alone would suggest. Permanent and semi-permanent waterholes, distributary wetlands, and flood-linked systems create habitat contrasts that a simple “sand desert” label misses. The desert remains very dry, but water-linked habitats create ecological conditions that differ from areas without comparable channels, wetlands, or waterholes.

The Strzelecki is not simply a lesser-known copy of the Simpson; it has a distinct combination of dunes, flood systems, and lake-margin landforms. The dune colour, the fluvial links, the southern lake margins, the contact with Sturt Stony Desert, and the wider Cooper system all make it distinct. Across eastern arid Australia, few places show the meeting of sand and inland water so clearly. It is desert, but layered desert.

Sturt Stony Desert

Sturt Stony Desert covers 29,750 km² across South Australia, Queensland, and New South Wales. It is less widely recognized than the larger dune deserts, yet its stony surface shows how varied the landforms described as desert can be. This is not a dune sea. It is a land of gibber plains, tablelands, and hard stony surfaces that can look almost paved from a distance.

The wider Stony Plains bioregion has a median rainfall of about 118 mm, making it one of the driest regional contexts in the country. The climate is very arid, with extreme temperatures, and vegetation includes chenopod shrublands, gidgee, and mulga woodlands in appropriate sites. That mix surprises people who expect a stony desert to be nearly vegetation-free. It is open country, yes, but not blank country.

Gibber consists of closely packed stones left behind as finer material is stripped or redistributed over long periods. The resulting desert pavement is more resistant to movement than loose sand. Under low-angle light, the surface can appear silver-grey, bronze, or blackish depending on weathering and moisture.

Land use in the wider stony region includes pastoralism and opal mining, with centres such as Coober Pedy, Oodnadatta, and Marla tied to the broader landscape. Sturt Stony remains remote, but it has long been connected to outback transport, mining, and pastoral networks.

The Sturt Stony Desert helps separate the Simpson and Strzelecki dunefields in geomorphic terms while remaining part of the same wider arid region. Its dominant gibber and stony pavements differ sharply from the repeated dune ridges of the neighboring sandy deserts.

Tirari Desert

Tirari Desert is one of the smaller named Australian deserts, with an area of 15,250 km² in South Australia. Although smaller than Australia’s major deserts, Tirari still covers a large area in geographic terms. Tirari lies mainly east of Lake Eyre North and is built around north-south sand dunes, salt-lake margins, and flats shaped in part by distributary flow.

Tirari lies beside the Simpson and Strzelecki deserts around the wider Mungerannie and Birdsville Track country. Its dunes occur alongside Warburton and Cooper-linked flood systems, so parts of the surrounding terrain retain clear evidence of past and episodic water movement.

Vegetation patterns in the broader Tirari country often alternate between dune crests, dune flanks, and lower interdune ground. Sandhill wattle, desert grasses, and shrubs can sort themselves by microtopography and moisture access, while flood-linked channels and flats support different plant assemblages again. That spatial variety is easy to miss when Tirari is described only by its area and dune orientation.

Tirari also lies within a region where inland river flow can exceed what local rainfall alone would suggest. Water arriving from far upstream can spread across floodouts and low country even when nearby desert sectors remain dry for long periods. This difference between local rainfall and incoming flow affects soils, plant cover, bird use, and desert-margin habitats.

Compared with larger Australian deserts, Tirari has a smaller area but a distinctive combination of dunes and inland-water influence. Its landforms show how flood systems, lake margins, and dune fields interact within the eastern arid zone.

Pedirka Desert

Pedirka Desert is the smallest of Australia’s 10 named mainland deserts, covering about 1,250 km² in the far north of South Australia. Pedirka is compact compared with the other named mainland deserts, but it still has a distinct dune-field structure and arid vegetation pattern.

Pedirka is generally described as a small dune field with deep red sands, low eroded parallel dunes, and dense mulga woodland in places. That already separates it from the common image of a bare desert. The smallest named Australian desert is not a bare, open pan. It is a sandy-mulga system with a more intimate structure than the giant dune fields farther east.

For regional context, Pedirka sits within the broader Finke bioregion, where median rainfall is around 152 mm and evaporation stays very high. In that broader setting, reporting on the Pedirka subregion shows that only about 15.5% of the sub-IBRA area lies within three kilometres of permanent or semi-permanent stock water. Even in a smaller desert, that figure shows that water access remains sparse and strongly shapes land use and ecological pressure.

The Pedirka subregion was also reported as showing minimal persistent grazing gradients after major rainfall events, pointing to strong recovery in that reporting context. Its smaller area makes the relationships between dunes, vegetation, water access, and land use easier to distinguish.

Pedirka shows that desert classification is not based on size alone. Surface form, vegetation, remoteness, and arid function also distinguish it from surrounding landscapes. Even limited rainfall has a strong influence on vegetation and surface conditions there.

Climate, Water, and Surface Patterns

Seen together, the 10 Australian deserts form a dry belt with clear internal contrasts. Median regional rainfall figures from broader desert bioregions range from about 118 mm in the Stony Plains context to roughly 298 mm in the Tanami context. That spread is large enough to shape vegetation and fire patterns, yet all of these places remain arid to semi-arid by Australian standards. None escapes water stress. They simply experience it in different ways.

Summer rainfall tends to matter more in the north and centre. The Tanami, Great Sandy, and Little Sandy all show stronger summer-dominant or monsoonal influence than the southern deserts. Farther south, the climate usually feels harsher and less forgiving, with lower totals and extremely high evaporation. The difference is not just academic. It affects shrub structure, fuel build-up, and the timing of biological response after rain.

Water enters the eastern deserts in a different way as well. In the Simpson, Strzelecki, and Tirari zone, distant catchments can feed flood systems that spread into the arid interior. This is why inland waterholes, floodouts, and wetland refuges can occur inside or beside some of the driest terrain on the continent. These features reflect basin-scale drainage rather than local rainfall alone.

Surface pattern follows these water contrasts. Dunes dominate the better-known sandy deserts, but not all dunes are the same. The Simpson is famous for long, repeated parallel ridges. The Strzelecki mixes longitudinal dunes with creek-fan influence. Great Sandy and Great Victoria contain massive dune and sand-plain systems, yet with different climatic settings and associated vegetation. The stony deserts, by contrast, express dryness through pavements, gibber, hard ground, and broad open visibility.

Size alone does not predict appearance. The Great Victoria is the largest named desert, while Pedirka is the smallest, yet both contain arid landforms that differ from the stony pavements of Sturt Stony Desert and the long parallel dunes of the Simpson. Area indicates scale but not surface character.

Plants and Animals Across the Arid Belt

The backbone of many Australian deserts is spinifex, the hummock grass that shapes vast areas of dune country and sandy plains. In some places it is joined by acacia shrub steppe; in others by mulga woodlands, chenopods, gidgee, or sparse eucalypt components. This distinguishes many Australian deserts from the common image of a nearly plantless wasteland. Most of these landscapes are vegetated drylands, not naked ergs.

Plant distribution often tracks microtopography. Dune crests, dune flanks, swales, clay pans, saline flats, and floodplain edges all carry different soil and moisture conditions. In the sandy deserts, spinifex on crests and shrubs on flanks or interdunes are common visual patterns. In the stony regions, chenopod shrublands and tougher woody species fit the harder, shallower, rockier ground. One desert can look repetitive from a distance and very finely sorted when walked slowly.

Animal life follows this habitat patchiness. The deserts support reptiles, birds, invertebrates, and mammals adapted to heat, irregular rainfall, and sparse cover. Some broader bioregions also show high numbers of threatened species and local losses. In the wider Great Sandy reporting region, threatened mammal counts are notably high. In the wider Simpson–Strzelecki region, threatened mammal listings include species already extinct from that landscape context.

Water-linked habitats support a large share of local biodiversity relative to their area. Springs, swamps, waterholes, distributaries, and floodplain vegetation patches act as refugia within a broader dry matrix. This is especially evident on the Lake Eyre Basin side of the desert belt, where dunes, inland rivers, and wetland pockets create strong ecological contrasts.

Invasive animals remain part of the modern desert picture too. Regional reporting across several deserts notes the presence of feral cats, foxes, camels, rabbits, and other introduced animals. Fire can interact with these pressures by opening cover or changing post-rain habitat patterns. Plants, water, grazing, fuel, predators, and recovery interact across the desert belt.

Common Vegetation Themes Across the 10 Deserts

• Spinifex hummock grasslands dominate much of the sandy desert belt
• Mulga and acacia systems appear in several deserts, especially on firmer or less mobile substrates
• Chenopod shrublands are more typical of stony or saline country
• Coolibah and riverine woodlands occur where flood-linked water supports them
• Ephemeral herbs and grasses can briefly transform dune swales and flats after rain

Common Surface Features

• Dunefield — broad area of repeated sand ridges and swales
• Gibber plain — stony desert pavement made of closely packed pebbles and stones
• Playa — dry lake bed, often salty, sometimes briefly flooded
• Floodout — place where a channel spreads and loses confinement across low ground
• Lunette — crescent-shaped dune or ridge often associated with lake margins

Desert Comparison Table

How These 10 Deserts Fit Together

Western Australia contains the largest cluster of sandy systems: Great Victoria, Great Sandy, Gibson, and Little Sandy. The central north includes the Tanami, while the east and south-east of the arid interior contain the Simpson, Strzelecki, Tirari, Pedirka, and the stony country of Sturt Stony.

There is no single Australian desert landform. The 10 named deserts include large sandy systems, long parallel dunefields, stony plains, salt-lake margins, flood-linked deserts, and mixed sand-and-gibber landscapes. Together, they show the main physical contrasts across Australia’s arid interior.

They also show how dryland systems are built through overlap. Wind shapes dunes. Water shapes floodouts, distributaries, clay pans, and waterholes. Vegetation stabilizes or opens ground. Fire resets patch structure after wet phases. Land use alters pressure near water and along accessible margins. None of these processes works alone for long.

The Australian desert belt is defined by recurring patterns: repeated dunes, stony pavements, episodic floods, low but persistent plant cover, and strong climate variability. Large and small deserts, as well as sandy and stony systems, all occupy the same arid continent while differing in landform, vegetation, drainage, and rainfall regime.