TIBET · DECCAN
CASPIAN · BAIKAL
STRAITS & FJORDS
Global Landform Atlas
Major Mountains & Plateaus · Major Rivers & Lakes · Subtropical & Cold Deserts · Coastal Forms & Straits (28 Micro-Realms)
The Planetary Synthesis of Endogenic & Exogenic Landforms
Realm 61 integrates every geomorphic process studied across Worlds A through L onto the global map: 1) Major Mountains, Plateaus & Plains shaped by plate tectonics and denudation, 2) Major World Rivers & Lakes occupying structural rifts, glacial basins, and alluvial foredeeps, 3) Major Hot & Cold Deserts governed by Hadley subsidence, cold western boundary ocean currents, and rainshadows, and 4) Major Coastal Forms, Peninsulas & Strategic Chokepoint Straits.
I. Major Mountains, Plateaus & Continental Plains of the World
Asian Mountain Systems
- Himalayas (Everest 8,848.86 m) & Karakoram (K2)
- Hindu Kush, Kunlun, Tien Shan, Altai
- Elburz & Zagros (Iran), Taurus (Turkey)
European Mountain Systems
- Caucasus: Mt. Elbrus (5,642 m — Europe's highest)
- Alps (Mont Blanc 4,807 m), Pyrenees, Apennines
- Carpathians, Balkans, Vosges/Black Forest, Urals
North American Cordilleras
- Alaska Range: Denali / Mt. McKinley (6,190 m)
- Rocky Mtns, Coast Ranges, Cascades, Sierra Nevada
- Appalachians (East — old Hercynian fold)
South American Andes
- 7,000 km longest continental mountain range
- Aconcagua (6,961 m — highest outside Asia!)
- Ojos del Salado (highest active volcano), Cotopaxi
Africa, Australia & Antarctica
- Africa: Kilimanjaro (5,895 m), Kenya, Rwenzori (Block), Atlas (Fold), Drakensberg
- Australia: Great Dividing Range (Kosciuszko)
- Antarctica: Ellsworth Mtns (Vinson Massif)
Global Plateaus Atlas
(4.5 KM)
KATANGA
- Intermontane: Tibet, Bolivian Altiplano, Anatolia
- Volcanic: Deccan, Columbia-Snake, Ethiopian
- Mineral Shields: Chotanagpur, Katanga, Kimberley
Plains & Steppe Grasslands
- Temperate: Prairies (USA/Can), Pampas (Arg), Steppes (Eurasia), Velds (SA), Downs (Aus), Canterbury (NZ), Pustaz (Hungary)
- Tropical Savannas: Llanos (Ven) & Campos (Braz)
II. Major World Rivers & Tectonic/Glacial Lake Basins
African River Systems
- Nile: White + Blue Nile meet at Khartoum $\to$ Med.
- Congo (Zaire): 2nd largest discharge; deep canyon
- Niger (Gulf of Guinea), Zambezi (Victoria Falls), Orange
American River Systems
- Amazon: Largest basin (7M km²) & discharge (20% global river flow!)
- Paraná–Paraguay (Rio de la Plata) & Orinoco
- Mississippi, St. Lawrence, Mackenzie, Colorado
Asian River Systems
- Yangtze (Asia's longest — 6,300 km) & Huang He
- Mekong (China, Myanmar, Laos, Thai, Cambodia, Vietnam)
- Tigris–Euphrates, Amu & Syr Darya (Aral Sea)
European & Australian Rivers
- Volga: Europe's longest river (drains into Caspian)
- Danube: Flows through 10 nations & 4 capitals!
- Rhine (Rotterdam port) & Murray–Darling (Aus)
Twice-Crossing Tropic Rivers
- #1 UPSC Prelims favourite trio!
- Tropic of Cancer (23.5°N): MAHI River (India)
- Equator (0°): CONGO; Capricorn (23.5°S): LIMPOPO
Tectonic Rift Valley Lakes
- Lake Baikal (Siberia): World's deepest (1,642 m) & oldest; holds 22% of liquid surface freshwater!
- Tanganyika (2nd deepest), Nyasa/Malawi, Turkana
- Dead Sea (Jordan Rift — lowest lake at -430 m)
World Lakes Superlatives
- Caspian Sea: Largest lake by area (endorheic saline)
- Superior: Largest freshwater lake by surface area
- Victoria (between rift arms; Equator crosses!) & Titicaca (highest navigable)
III. Major Deserts of the World (Subtropical, Cold-Current & Rainshadow)
Why 15°–30° West Coasts?
- 1) Subtropical High Pressure anticyclonic sinking air
- 2) Easterly Trade Winds blow offshore on W. coasts
- 3) Cold ocean currents chill base $\to$ zero rain!
Sahara, Arabian & Kalahari
- Sahara (9.2M km²): Largest hot desert (Ahaggar/Tibesti massifs)
- Arabian: Rub' al Khali (largest continuous sand erg) & An-Nafud
- Kalahari (Botswana/Namibia/SA — San Bushmen)
Cold-Current Fog Deserts
↑ BENGUELAATACAMA
NAMIB
- Atacama (Chile/Peru): Driest non-polar desert (Humboldt/Peru current); sodium nitrate caliche
- Namib (Benguela current) & Western Sahara (Canary)
- Baja/Sonoran (California current)
Australian Deserts
- Dryest inhabited continent (Great Dividing rainshadow + West Australian cold current)
- Great Victoria, Great Sandy, Gibson, Simpson, Tanami, Stuart Stony
Mid-Latitude Cold Deserts
- Gobi (Mongolia/China) & Taklamakan (Tarim basin)
- Karakum (Turkmenistan) & Kyzylkum (Uzbekistan)
- Patagonian Desert (Argentina — Andes Westerlies lee!)
Polar Deserts (Antarctica)
#1 LARGEST DESERT ON EARTH
- Precipitation $<50\text{ mm/yr}$ (polar high subsidence)
- Antarctica (14.2M km²) & Arctic (13.9M km²)
- McMurdo Dry Valleys: Ice-free for 2 million years!
North American & Iranian
- Great Basin (cold), Mojave (Death Valley $56.7^\circ\text{C}$), Sonoran, Chihuahuan
- Iran: Dasht-e Kavir (salt) & Dasht-e Lut (hottest skin temp $70.7^\circ\text{C}$)
IV. Global Coastal Forms, Strategic Straits, Canals & Grand Synthesis
World Coastal Types Atlas
- Fjord: Norway, Chile, NZ South Island, Alaska
- Ria: NW Spain (Galicia), SW Ireland, Konkan
- Dalmatian: Croatia (Adriatic); Haff: Baltic lagoons
Barrier Reefs & Barrier Coasts
- Great Barrier Reef (2,300 km — NE Australia Coral Sea)
- Belize Barrier Reef & Lakshadweep/Maldives Atolls
- Cape Hatteras (USA Outer Banks) & Wadden Sea
Indo-Pacific Chokepoint Straits
- Hormuz: Persian Gulf $\leftrightarrow$ Gulf of Oman
- Bab-el-Mandeb: Red Sea $\leftrightarrow$ Gulf of Aden
- Malacca (Sumatra–Malaya), Sunda (Sumatra–Java), Lombok, Palk
European & Global Straits
- Gibraltar (Spain–Morocco); Dover (UK–France)
- Turkish Straits: Dardanelles $\to$ Marmara $\to$ Bosporus $\to$ Black Sea $\to$ Kerch (Azov)
- Bering (Asia–N. America), Magellan, Yucatan, Florida
Suez vs. Panama Canals
SEA-LEVEL · NO LOCKS
GATUN LAKE LOCKS
- Suez (Sinai Isthmus): Port Said to Suez via Great Bitter Lake (sea-level, zero locks)
- Panama: Lifts ships 26 m over Isthmus via freshwater Gatun Lake locks; Kiel Canal (Germany)
Major Peninsulas & Capes
- Arabian (world's largest peninsula), Deccan, Indochina
- Iberian, Balkan, Crimean, Anatolian, Kamchatka, Yucatan
- Cape of Good Hope, Cape Agulhas, Cape Horn
Geomorphology (01–61) Crown
- Origin of Earth $\to$ Interior $\to$ Tectonics $\to$ Rocks
- Weathering $\to$ Fluvial, Karst, Aeolian, Glacial, Coastal
- Bridges to World M (Climatology — Realm 62)!
Core Distinctions
• Subtropical West-Coast Deserts ($15^\circ\text{–}30^\circ\text{ N/S}$): Formed by Hadley cell subsidence, offshore Easterly Trade Winds, and desiccating cold ocean currents—Atacama (Humboldt), Namib (Benguela), Sahara (Canary), Sonoran/Baja (California), Western Australian (W. Australia current).
• Mid-Latitude Temperate Cold Deserts ($30^\circ\text{–}50^\circ$): Formed by extreme continentality or mountain rainshadows—Gobi & Taklamakan (Himalayan/Tibetan block), Patagonian (Andes leeward block to Westerlies), Karakum & Kyzylkum.
• Tropic of Cancer ($23.5^\circ\text{N}$): Mahi River (India — rises in MP Vindhyas, loops through Rajasthan into Gujarat Gulf of Khambhat).
• Equator ($0^\circ$): Congo (Zaire) River (Africa).
• Tropic of Capricorn ($23.5^\circ\text{S}$): Limpopo River (Southern Africa).
• Largest by Area: Caspian Sea (Saline); Largest Freshwater by Area: Lake Superior; Deepest & Largest Freshwater by Volume: Lake Baikal ($1,642\text{ m}$); Lowest Elevation: Dead Sea ($-430\text{ m}$).
• North-to-South Black Sea Exit: Sea of Azov $\to$ Kerch Strait $\to$ Black Sea $\to$ Bosporus Strait $\to$ Sea of Marmara $\to$ Dardanelles Strait $\to$ Aegean / Mediterranean Sea.
Global Landform Atlas Matrix
Planetary Superlatives & Chokepoints