110-623: The Drakenstein mountain is a mountain range in the Western Cape province of South Africa . It lies opposite Simonsberg Mountain and is part of the Cape Fold Belt . It is named after ex-soldier Hendrik Adriaan van Rheede tot Drakenstein , who was Colonial administrator of the Dutch East India Company . Both the mountain and the valley at its foot Groot Drakenstein were named in honour of Hendrik who visited
220-468: A global rise in sea level. Sea level also increases in the Indian Ocean, except in the south tropical Indian Ocean where it decreases, a pattern most likely caused by rising levels of greenhouse gases . Among the tropical oceans, the western Indian Ocean hosts one of the largest concentrations of phytoplankton blooms in summer, due to the strong monsoon winds. The monsoonal wind forcing leads to
330-665: A government, and Morkel remained Premier. In 2000 the DP and the NNP formalised their coalition by forming the Democratic Alliance (DA). In 2001, however, the NNP broke with the DA over the removal of Peter Marais from office as Mayor of Cape Town by DA leader Tony Leon . The NNP instead went into coalition with the ANC; Gerald Morkel, who was opposed to the split, resigned as Premier and
440-775: A long tradition of holding liberal values. For example, the Cape Qualified Franchise before the Union of South Africa. The Cape Qualified Franchise was the system of non-racial franchise that was adhered to in the Cape Colony , and in the Cape Province in the early years of the Union of South Africa . Qualifications for the right to vote at parliamentary elections were applied equally to all men, regardless of race. This local system of multi-racial suffrage
550-747: A maximum depth of 7,290 m (23,920 ft). All of the Indian Ocean is in the Eastern Hemisphere and the centre of the Eastern Hemisphere, the 90th meridian east , passes through the Ninety East Ridge . Within these waters are a number of islands. These include those controlled by surrounding countries, and independent island states and territories. Of the non-coastal islands, there are two broad clusters: one around Madagascar, and one south of India. A few other oceanic islands are scattered elsewhere. In contrast to
660-470: A period of six years, except for debris that gets indefinitely stuck in the centre of the gyre. The garbage patch in the Indian Ocean will, according to a 2012 study, decrease in size after several decades to vanish completely over centuries. Over several millennia, however, the global system of garbage patches will accumulate in the North Pacific. There are two amphidromes of opposite rotation in
770-790: A process of aridification began in the southwest Indian Ocean began around 4,000 years ago. Mammalian megafauna once widespread in the MPA was driven to near extinction in the early 20th century. Some species have been successfully recovered since then — the population of white rhinoceros ( Ceratotherium simum simum ) increased from less than 20 individuals in 1895 to more than 17,000 as of 2013. Other species still depend on fenced areas and management programs, including black rhinoceros ( Diceros bicornis minor ), African wild dog ( Lycaon pictus ), cheetah ( Acynonix jubatus ), elephant ( Loxodonta africana ), and lion ( Panthera leo ). This biodiversity hotspot (and namesake ecoregion and "Endemic Bird Area")
880-504: A significant portion of the world's tuna catch and is home to endangered marine species. It faces challenges like overfishing and pollution , including a significant garbage patch . Historically, the Indian Ocean has been a hub of cultural and commercial exchange since ancient times. It played a key role in early human migrations and the spread of civilizations. In modern times, it remains crucial for global trade, especially in oil and hydrocarbons. Environmental and geopolitical concerns in
990-621: A social movement for political consciousness. In December 1968, the South African Student Organization (SASO) was formed at a conference held in Marianhill, Natal. The conference was exclusively attended by Black students. After its launch, SASO became the medium through which black consciousness ideology spread to schools and other university campuses across the country. In 1974, South African Minister of Bantu Education and Development MC Botha, constituted
1100-464: A strong coastal and open ocean upwelling , which introduces nutrients into the upper zones where sufficient light is available for photosynthesis and phytoplankton production. These phytoplankton blooms support the marine ecosystem, as the base of the marine food web, and eventually the larger fish species. The Indian Ocean accounts for the second-largest share of the most economically valuable tuna catch. Its fish are of great and growing importance to
1210-473: Is a patchwork of small forested areas, often with a unique assemblage of species within each, located within 200 km (120 mi) from the coast and covering a total area of c. 6,200 km (2,400 sq mi). It also encompasses coastal islands, including Zanzibar and Pemba, and Mafia. This area, one of the only two hotspots that are entirely arid, includes the Ethiopian Highlands ,
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#17327720516771320-643: Is approximately 30° north in the Persian Gulf . The Indian Ocean covers 70,560,000 km (27,240,000 sq mi), including the Red Sea and the Persian Gulf but excluding the Southern Ocean, or 19.5% of the world's oceans; its volume is 264,000,000 km (63,000,000 cu mi) or 19.8% of the world's oceans' volume; it has an average depth of 3,741 m (12,274 ft) and
1430-825: Is artificially connected to the Mediterranean Sea without ship lock through the Suez Canal , which is accessible via the Red Sea. The Arabian Sea is connected to the Persian Gulf by the Gulf of Oman and the Strait of Hormuz . In the Persian Gulf, the Gulf of Bahrain separates Qatar from the Arabic Peninsula. Along the west coast of India, the Gulf of Kutch and Gulf of Khambat are located in Gujarat in
1540-560: Is dominated by Karoo drought-resistant shrubbery . The West Coast and Little Karoo are semi-arid regions and are typified by many species of succulents and drought-resistant shrubs and acacia trees. The Garden Route on the south coast (between the Outeniqua Mountains and the Southern Indian Ocean ) is extremely lush, with temperate rainforest (or Afromontane Forest ) covering many areas adjacent to
1650-523: Is named devils tooth for its big tooth look. British singer and songwriter Lily Allen shot the Air Balloon (song) at the foot of the mountain at an unused castle (perfect for movies, photography, in her case music videos). The mountain is mainly untouched yet there is footpaths crossing the baboon infested mountain, with an apex predator the Cape leopard roaming the mountains and surrounding farms. For
1760-469: Is projected to push the tropical Indian Ocean into a basin-wide near-permanent heatwave state by the end of the 21st century, where marine heatwaves are projected to increase from 20 days per year (during 1970–2000) to 220–250 days per year. South of the Equator (20–5°S), the Indian Ocean is gaining heat from June to October, during the austral winter, while it is losing heat from November to March, during
1870-669: Is roughly L-shaped, extending north and east from the Cape of Good Hope , in the southwestern corner of South Africa. It stretches about 400 kilometres (250 mi) northwards along the Atlantic coast and about 500 kilometres (300 mi) eastwards along the South African south coast ( Southern Indian Ocean ). It is bordered on the north by the Northern Cape and on the east by the Eastern Cape . The total land area of
1980-471: Is the fourth largest of the nine provinces with an area of 129,449 square kilometres (49,981 sq mi), and the third most populous , with an estimated 7 million inhabitants in 2020. About two-thirds of these inhabitants live in the metropolitan area of Cape Town , which is also the provincial capital. The Western Cape was created in 1994 from part of the former Cape Province . The two largest cities are Cape Town and George . The Western Cape
2090-519: Is the southernmost region of the African continent with Cape Agulhas as its southernmost point, only 3,800 kilometres (2,400 mi) from the Antarctic coastline. The coastline varies from sandy between capes, to rocky to steep and mountainous in places. The only natural harbour is Saldanha Bay on the west coast, about 140 kilometres (90 mi) north of Cape Town. However a lack of fresh water in
2200-413: The 2004 election , there was again no absolute winner in the provincial parliament; this time the ANC won 19 seats, the DA won 12, and the NNP won 5. The ANC-NNP coalition continued in power, but van Schalkwyk took up a ministerial post in the national cabinet and was replaced as Premier by the ANC's Ebrahim Rasool . The NNP was finally dissolved after the 2005 floor-crossing period and its members joined
2310-692: The Andaman Sea , the Arabian Sea , the Bay of Bengal , and the Laccadive Sea . Once called the Eastern Ocean, it is now named after India , which protrudes into it, and has been known by its current name since at least 1515. It is the only ocean named after a country. It has an average depth of 3,741 m. All of the Indian Ocean is in the Eastern Hemisphere . Unlike the Atlantic and Pacific,
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#17327720516772420-748: The Arabian Peninsula in the Northern Hemisphere and north of the trade winds in the Southern Hemisphere. The Indonesian Throughflow is a unique Equatorial connection to the Pacific. The climate north of the equator is affected by a monsoon climate. Strong north-east winds blow from October until April; from May until October south and west winds prevail. In the Arabian Sea, the violent Monsoon brings rain to
2530-577: The East African Rift valley , the Socotra islands, as well as some small islands in the Red Sea and areas on the southern Arabic Peninsula. Endemic and threatened mammals include the dibatag ( Ammodorcas clarkei ) and Speke's gazelle ( Gazella spekei ); the Somali wild ass ( Equus africanus somaliensis ) and hamadryas baboon ( Papio hamadryas ). It also contains many reptiles. In Somalia,
2640-704: The House of Assembly in 1960. Coloured voters similarly followed in 1958 and 1970 , respectively. The Black Consciousness Movement (BCM) was a grassroots anti-Apartheid activist movement that emerged in South Africa in the mid-1960s out of the political vacuum created by the jailing and banning of the African National Congress and Pan Africanist Congress leadership after the Sharpeville Massacre in 1960. The BCM represented
2750-629: The Malacca , Sunda and Torres Straits . The Gulf of Carpentaria is located on the Australian north coast while the Great Australian Bight constitutes a large part of its southern coast. Several features make the Indian Ocean unique. It constitutes the core of the large-scale Tropical Warm Pool which, when interacting with the atmosphere, affects the climate both regionally and globally. Asia blocks heat export and prevents
2860-818: The Mascarene Basin the CDW becomes a deep western boundary current before it is met by a re-circulated branch of itself, the North Indian Deep Water. This mixed water partly flows north into the Somali Basin whilst most of it flows clockwise in the Mascarene Basin where an oscillating flow is produced by Rossby waves . Water circulation in the Indian Ocean is dominated by the Subtropical Anticyclonic Gyre,
2970-627: The Overberg on the south coast have a maritime climate with cool, moist winters and mild, moist summers. Mossel Bay in the Garden Route is considered to have the second mildest climate worldwide after Hawaii. The La Niña phase of the El Niño-Southern Oscillation cycle tends to increase rainfall in this region in the dry season (November to April). The effects of El Niño on rainfall in southern Africa differ between
3080-699: The R101 route. The latter is much taller and is located south of Franschhoek and Stellenbosch , with Victoria Peak (1,590 m (5,220 ft) as its highest point. It is traversed by no mountain passes, but contains the Hottentots-Holland Nature Reserve and also holds title of the wettest place in South Africa in the upper reaches of the Jonkershoek Nature Reserve , with over 2,000 millimetres (79 in) of precipitation per annum (precise measurement unverified),
3190-716: The Referendum Party , Freedom Front Plus and organisations such as the Cape Independence Advocacy Group and CapeXit, wish to bring forth the constitutional and peaceful secession of the Western Cape. Proponents claim substantial support for the idea, with CapeXit having over 800,000 signed mandates in May 2021. Additionally, a poll conducted in 2023 by Victory Research on behalf of the Cape Independence Advocacy Group claimed that 58% of
3300-695: The Sea of Zanj is located north of Madagascar. On the northern coast of the Arabian Sea , Gulf of Aden is connected to the Red Sea by the strait of Bab-el-Mandeb . In the Gulf of Aden, the Gulf of Tadjoura is located in Djibouti and the Guardafui Channel separates Socotra island from the Horn of Africa. The northern end of the Red Sea terminates in the Gulf of Aqaba and Gulf of Suez . The Indian Ocean
3410-522: The University of the Western Cape (UWC) and the University of Cape Town (UCT) organised marches. Poster parades by UWC and Black Power Salute marches by UCT was broken by the police, resulting in 73 students getting arrested and detained at Victor Verster Prison , near Paarl. On 1 September 1976, the unrest spread to the city of Cape Town itself. Approximately 2000 black students from Western Cape townships, namely Langa, Nyanga and Gugulethu, matched
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3520-562: The national constitution ; these responsibilities include agriculture, education, environment, health services, housing, language policies, tourism, trade, and welfare. The provincial parliament also elects the Premier of the Western Cape to lead the provincial executive. Alan Winde , a member of the DA and former Provincial Minister of Community Safety, has served as Premier since the 2019 provincial election . The Premier appoints ten members of
3630-582: The runoff water to the Indian Ocean. Mainly in summer, this runoff flows into the Arabian Sea but also south across the Equator where it mixes with fresher seawater from the Indonesian Throughflow . This mixed freshwater joins the South Equatorial Current in the southern tropical Indian Ocean. Sea surface salinity is highest (more than 36 PSU ) in the Arabian Sea because evaporation exceeds precipitation there. In
3740-423: The "Hinge zone may represent the relict of continental and proto-oceanic crustal boundary formed during the rifting of India from Antarctica ." Australia, Indonesia, and India are the three countries with the longest shorelines and exclusive economic zones . The continental shelf makes up 15% of the Indian Ocean. More than two billion people live in countries bordering the Indian Ocean, compared to 1.7 billion for
3850-563: The "R" roads which connect the smaller towns. All major roads are tarred with major rural gravel roads well maintained. Limited access motorways are limited to the Cape Metropolitan Area, Winelands and Garden Route, however due to the low population density of the remainder of the province, the highways remain efficient and high-speed, except during peak holiday travel seasons, when travel can be slow-going in places due to heavy traffic. The 2022 South African census recorded
3960-831: The 15th century called it the Western Oceans. In Ancient Greek geography , the Indian Ocean region known to the Greeks was called the Erythraean Sea . The borders of the Indian Ocean , as delineated by the International Hydrographic Organization in 1953 included the Southern Ocean but not the marginal seas along the northern rim but in 2002 the IHO delimited the Southern Ocean separately, which removed waters south of 60°s from
4070-508: The ANC, again giving that party an absolute majority of 24 seats. In the 2007 floor-crossing period the ANC gained a further three members of the provincial parliament. In 2008 Rasool resigned as Premier due to internal party politics, and was replaced by Lynne Brown . The 2009 election marked a significant change in Western Cape politics, as the Democratic Alliance won 51% of the votes and an absolute majority of 22 seats in
4180-727: The Arabian Peninsula) and Limpopo rivers. After the breakup of East Gondwana and the formation of the Himalayas, the Ganges-Brahmaputra rivers flow into the world's largest delta known as the Bengal delta or Sunderbans . Marginal seas , gulfs, bays and straits of the Indian Ocean include: Along the east coast of Africa, the Mozambique Channel separates Madagascar from mainland Africa, while
4290-423: The Atlantic and 2.7 billion for the Pacific (some countries border more than one ocean). The Indian Ocean drainage basin covers 21,100,000 km (8,100,000 sq mi), virtually identical to that of the Pacific Ocean and half that of the Atlantic basin, or 30% of its ocean surface (compared to 15% for the Pacific). The Indian Ocean drainage basin is divided into roughly 800 individual basins, half that of
4400-482: The Atlantic and Pacific, the Indian Ocean is enclosed by major landmasses and an archipelago on three sides and does not stretch from pole to pole, and can be likened to an embayed ocean. It is centered on the Indian Peninsula. Although this subcontinent has played a significant role in its history, the Indian Ocean has foremostly been a cosmopolitan stage, interlinking diverse regions by innovations, trade, and religion since early in human history. The active margins of
4510-454: The Cape Town area. According to a report by the Truth and Reconciliation Commission (TRC), the Western Cape experienced the second highest number of deaths and casualties associated with the 1976 uprising protests. In 1994, at the introduction of the Interim Constitution and the first non-racial election , South Africa's original provinces and bantustans were abolished and nine new provinces were established. The former Cape Province
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4620-414: The Cape Town central business district (CBD). Coloured students also contributed to the protests by peacefully marching to the city, but were blockaded by the police in the CBD. The protests turned violent when coloured students started burning schools, libraries and a magistrate's court in support of the student revolt. Thereafter, 200,000 coloured workers partook in a two-day strike staying away from work in
4730-402: The Cape as Commissioner-General in 1685; Drakenstein (modern spelling usually Drakestein) was the name of his estate in the Netherlands. They actually comprise two separate ranges, the Klein Drakenstein and Groot Drakenstein Mountains. The former located just to the east of Paarl being punctuated by the Huguenot Tunnel on the N1 highway and Du Toitskloof Pass (820 m (2,690 ft)) as
4840-462: The Comoros. Although both species represent an order of lobe-finned fishes known from the Early Devonian (410 mya ) and though extinct 66 mya, they are morphologically distinct from their Devonian ancestors. Over millions of years, coelacanths evolved to inhabit different environments — lungs adapted for shallow, brackish waters evolved into gills adapted for deep marine waters. Of Earth's 36 biodiversity hotspots nine (or 25%) are located on
4950-403: The East India Coastal Current to the Arabian Sea from January to April. An Indian Ocean garbage patch was discovered in 2010 covering at least 5 million square kilometres (1.9 million square miles). Riding the southern Indian Ocean Gyre , this vortex of plastic garbage constantly circulates the ocean from Australia to Africa, down the Mozambique Channel , and back to Australia in
5060-411: The Indian Ocean but included the northern marginal seas. Meridionally , the Indian Ocean is delimited from the Atlantic Ocean by the 20° east meridian , running south from Cape Agulhas , South Africa, and from the Pacific Ocean by the meridian of 146°49'E, running south from South East Cape on the island of Tasmania in Australia. The northernmost extent of the Indian Ocean (including marginal seas)
5170-405: The Indian Ocean have an average width (horizontal distance from land to shelf break ) of 19 ± 0.61 km (11.81 ± 0.38 mi) with a maximum width of 175 km (109 mi). The passive margins have an average width of 47.6 ± 0.8 km (29.58 ± 0.50 mi). The average width of the slopes (horizontal distance from shelf break to foot of slope) of
5280-457: The Indian Ocean includes beaches and intertidal zones covering 3,000 km (1,200 sq mi) and 246 larger estuaries . Upwelling areas are small but important. The hypersaline salterns in India covers between 5,000–10,000 km (1,900–3,900 sq mi) and species adapted for this environment, such as Artemia salina and Dunaliella salina , are important to bird life. Coral reefs, sea grass beds, and mangrove forests are
5390-445: The Indian Ocean is bordered by landmasses and an archipelago on three sides, making it more like an embayed ocean centered on the Indian Peninsula. Its coasts and shelves differ from other oceans, with distinct features, such as a narrower continental shelf . In terms of geology, the Indian Ocean is the youngest of the major oceans, with active spreading ridges and features like seamounts and ridges formed by hotspots . The climate of
5500-432: The Indian Ocean is characterized by monsoons . It is the warmest ocean, with a significant impact on global climate due to its interaction with the atmosphere. Its waters are affected by the Indian Ocean Walker circulation , resulting in unique oceanic currents and upwelling patterns. The Indian Ocean is ecologically diverse, with important marine life and ecosystems like coral reefs, mangroves, and sea grass beds. It hosts
5610-424: The Indian Ocean region, or almost half of the world's mangrove habitat, of which 42,500 km (16,400 sq mi) is located in Indonesia, or 50% of mangroves in the Indian Ocean. Mangroves originated in the Indian Ocean region and have adapted to a wide range of its habitats but it is also where it suffers its biggest loss of habitat. In 2016, six new animal species were identified at hydrothermal vents in
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#17327720516775720-666: The Indian Ocean, during the past six decades. The tuna catch rates have also declined 50–90% during the past half-century, mostly due to increased industrial fisheries, with the ocean warming adding further stress to the fish species. Endangered and vulnerable marine mammals and turtles: 80% of the Indian Ocean is open ocean and includes nine large marine ecosystems : the Agulhas Current , Somali Coastal Current , Red Sea , Arabian Sea , Bay of Bengal , Gulf of Thailand , West Central Australian Shelf , Northwest Australian Shelf and Southwest Australian Shelf . Coral reefs cover c. 200,000 km (77,000 sq mi). The coasts of
5830-432: The Indian Ocean, probably caused by Rossby wave propagation. Icebergs drift as far north as 55° south latitude , similar to the Pacific but less than in the Atlantic where icebergs reach up to 45°S. The volume of iceberg loss in the Indian Ocean between 2004 and 2012 was 24 Gt . Since the 1960s, anthropogenic warming of the global ocean combined with contributions of freshwater from retreating land ice causes
5940-411: The Indian Ocean. While the Indian Ocean warmed at a rate of 1.2°C per century during 1950–2020, climate models predict accelerated warming, at a rate of 1.7 °C–3.8 °C per century during 2020–2100. Though the warming is basin-wide, maximum warming is in the northwestern Indian Ocean including the Arabian Sea, and reduced warming off the Sumatra and Java coasts in the southeast Indian Ocean. Global warming
6050-401: The Indian subcontinent. In the southern hemisphere, the winds are generally milder, but summer storms near Mauritius can be severe. When the monsoon winds change, cyclones sometimes strike the shores of the Arabian Sea and the Bay of Bengal . Some 80% of the total annual rainfall in India occurs during summer and the region is so dependent on this rainfall that many civilisations perished when
6160-408: The Monsoon failed in the past. The huge variability in the Indian Summer Monsoon has also occurred pre-historically, with a strong, wet phase 33,500–32,500 BP; a weak, dry phase 26,000–23,500 BC; and a very weak phase 17,000–15,000 BP, corresponding to a series of dramatic global events: Bølling–Allerød warming , Heinrich , and Younger Dryas . The Indian Ocean is the warmest ocean in
6270-399: The Pacific, of which 50% are located in Asia, 30% in Africa, and 20% in Australasia. The rivers of the Indian Ocean are shorter on average (740 km (460 mi)) than those of the other major oceans. The largest rivers are ( order 5 ) the Zambezi , Ganges - Brahmaputra , Indus , Jubba , and Murray rivers and (order 4) the Shatt al-Arab , Wadi Ad Dawasir (a dried-out river system on
6380-459: The Province's most inland boundary. The escarpment marks the southwestern edge of South Africa's central plateau (see the middle and bottom diagrams on the left). It runs parallel to the entire South African coastline, except in the very far northeast, where it is interrupted by the Limpopo River valley, and in the far northwest, where it is interrupted by the Orange River valley. The 1,000-kilometre-long (620 mi) northeastern stretch of
6490-438: The Provincial Treasury. Politically, the Western Cape is a stronghold for the Democratic Alliance (DA). The DA has won an absolute majority of the vote in the province in every national, provincial, and municipal election since 2009 . The Western Cape Province is divided into one metropolitan municipality and five district municipalities . The district municipalities are in turn divided into 24 local municipalities . In
6600-441: The Southeast Arabian Sea salinity drops to less than 34 PSU. It is the lowest (c. 33 PSU) in the Bay of Bengal because of river runoff and precipitation. The Indonesian Throughflow and precipitation results in lower salinity (34 PSU) along the Sumatran west coast. Monsoonal variation results in eastward transportation of saltier water from the Arabian Sea to the Bay of Bengal from June to September and in westerly transport by
6710-411: The Southwest Indian Ridge, from where it continues into the Mozambique Channel and Prince Edward Fracture Zone . North of 20° south latitude the minimum surface temperature is 22 °C (72 °F), exceeding 28 °C (82 °F) to the east. Southward of 40° south latitude , temperatures drop quickly. The Bay of Bengal contributes more than half (2,950 km or 710 cu mi) of
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#17327720516776820-399: The Southwest Indian Ridge: a "Hoff" crab, a "giant peltospirid" snail, a whelk-like snail, a limpet, a scaleworm and a polychaete worm. The West Indian Ocean coelacanth was discovered in the Indian Ocean off South Africa in the 1930s and in the late 1990s another species, the Indonesian coelacanth , was discovered off Sulawesi Island , Indonesia. Most extant coelacanths have been found in
6930-756: The Western Cape's GDP. 95% of wine produced in South Africa is produced in the Western Cape. South Africa is the 7th largest wine producing region in the world. The Western Cape has an excellent network of highways comparable with any first-world country. The primary highways are the N1 (from Cape Town to Three Sisters , continuing outside the province towards Bloemfontein and Johannesburg ), N2 (from Cape Town to Bloukrans River, towards Port Elizabeth ), N7 (from Cape Town to Bitterfontein, continuing towards Springbok and Namibia ), N9 (from George to Uniondale, continuing towards Graaff-Reinet and Colesberg ) and N12 (from George to Three Sisters, continuing towards Kimberley and Johannesburg). Other routes are
7040-422: The Western Cape's registered voters would support independence, while 68% would support a referendum on the issue. The provincial government is established under the Constitution of the Western Cape , which was adopted in 1998. The people of the province elect the 42-member Western Cape Provincial Parliament every five years by a system of party-list proportional representation . The sixth provincial parliament
7150-442: The austral summer. In 1999, the Indian Ocean Experiment showed that fossil fuel and biomass burning in South and Southeast Asia caused air pollution (also known as the Asian brown cloud ) that reach as far as the Intertropical Convergence Zone . This pollution has implications on both a local and global scale. Forty percent of the sediment of the Indian Ocean is found in the Indus and Ganges fans. The oceanic basins adjacent to
7260-449: The biggest sector in the Western Cape's economy is the financial, business services and real estate sector, which constitutes 33.55% of gross value added, followed by manufacturing at 14.26% and wholesale and retail trade, hotels, and restaurants at 13.67%. High-tech industries, international call centres, fashion design, advertising and TV production are niche industries rapidly gaining in importance. Cape Town accounts for roughly 73% of
7370-400: The bordering countries for domestic consumption and export. Fishing fleets from Russia, Japan, South Korea , and Taiwan also exploit the Indian Ocean, mainly for shrimp and tuna. Research indicates that increasing ocean temperatures are taking a toll on the marine ecosystem. A study on the phytoplankton changes in the Indian Ocean indicates a decline of up to 20% in the marine plankton in
7480-534: The centre of the 1,500,000 km (580,000 sq mi) hotspot, the landscape is dominated by Acacia - Commiphora deciduous bushland, but also includes the Yeheb nut ( Cordeauxia edulus ) and species discovered more recently such as the Somali cyclamen ( Cyclamen somalense ), the only cyclamen outside the Mediterranean. Warsangli linnet ( Carduelis johannis ) is an endemic bird found only in northern Somalia. An unstable political situation and mismanagement has resulted in overgrazing which has produced one of
7590-484: The coast, in the deep river valleys and along the southern slopes of the Outeniqua mountain range. Typical species are hardwoods of exceptional height, such as Yellowwood , Stinkwood and Ironwood trees. The Western Cape is climatologically diverse, with many distinct micro- and macroclimates created by the varied topography and the influence of the surrounding ocean currents. These are the warm Agulhas Current which flows southwards along South Africa's east coast, and
7700-511: The cold Benguela Current which is an upwelling current from the depths of the South Atlantic Ocean along South Africa's west coast. Thus climatic statistics can vary greatly over short distances. Most of the province is considered to have a Mediterranean climate with cool, wet winters and warm, dry summers. Both the Great Karoo and Little Karoo , in the interior, have an arid to semi-arid climate with cold, frosty winters and hot summers with occasional thunderstorms . The Garden Route and
7810-400: The continental shelves are 50.4–52.4 km (31.3–32.6 mi) for active and passive margins respectively, with a maximum width of 205.3–255.2 km (127.6–158.6 mi). In correspondence of the Shelf break , also known as Hinge zone, the Bouguer gravity ranges from 0 to 30 mGals that is unusual for a continental region of around 16 km thick sediments. It has been hypothesized that
7920-551: The continental slopes mostly contain terrigenous sediments. The ocean south of the polar front (roughly 50° south latitude ) is high in biologic productivity and dominated by non-stratified sediment composed mostly of siliceous oozes . Near the three major mid-ocean ridges the ocean floor is relatively young and therefore bare of sediment, except for the Southwest Indian Ridge due to its ultra-slow spreading rate. The ocean's currents are mainly controlled by
8030-687: The eastern extension of which is blocked by the Southeast Indian Ridge and the 90°E Ridge. Madagascar and the Southwest Indian Ridge separate three cells south of Madagascar and off South Africa. North Atlantic Deep Water reaches into the Indian Ocean south of Africa at a depth of 2,000–3,000 m (6,600–9,800 ft) and flows north along the eastern continental slope of Africa. Deeper than NADW, Antarctic Bottom Water flows from Enderby Basin to Agulhas Basin across deep channels (<4,000 m (13,000 ft)) in
8140-539: The entire United Kingdom. It is characterised by various types of shrubs, thousands of herbaceous flowering plant species and some grasses. With the exception of the Silver tree, Leucadendron argenteum , which only grows on the granite and clay soils of the Cape Peninsula , open fynbos is generally treeless except in the wetter mountain ravines where patches of Afromontane forest persist. The arid interior
8250-711: The escarpment is called the Drakensberg , which is geographically and geologically quite distinct from the Cape Fold Mountains , which originated much earlier and totally independently of the origin of the escarpment. The principal rivers of the province are the Berg and Olifants which drain into the Atlantic Ocean, and the Breede and Gourits which drain into the Indian Ocean. The vegetation of
8360-550: The expected changes. Thunderstorms are generally rare in the province (except in the Karoo ) with most precipitation being of a frontal or orographic nature. Extremes of heat and cold are common inland, but rare near the coast. Snow is a common winter occurrence on the Western Cape Mountains occasionally reaching down into the more inland valleys. Otherwise, frost is relatively rare in coastal areas and many of
8470-417: The following interactive map, the district and metropolitan municipalities are labelled in capital letters and shaded in various different colours. Clicking on the district on the map loads the appropriate article: As of the third quarter of 2023, the Western Cape's total real GDP was R 656.27 billion, which equaled 14.2% of South Africa's total GDP, and real GDP per capita was R90,571. The Western Cape has
8580-842: The heavily cultivated valleys. The Hon Alan Winde MMP The Seventh Provincial Parliament Speaker Daylin Mitchell MMP Deputy Speaker Reagan Allen MMP Chief Whip of the Majority Party Gillon Bosman MMP Leader of the Opposition Khalid Sayed MMP Chief Whip of the Official Opposition Ayanda Bans MMP Municipal: The Cape has had
8690-399: The hiking enthusiasts a trail with camping cabins runs all the way to Hermanus . 33°55′S 18°59′E / 33.917°S 18.983°E / -33.917; 18.983 Western Cape The Western Cape ( Afrikaans : Wes-Kaap [ˈvɛskɑːp] ; Xhosa : iNtshona-Koloni ) is a province of South Africa , situated on the south-western coast of the country. It
8800-560: The imposition of using Afrikaans as a medium of instruction in black schools, effective with students in Grade 7 (Standard 5) upwards. As early as March 1976, students began passive resistance against Afrikaans, fueling the outbreak of the Soweto Uprising on 16 June 1976. Consequently, the student protests spread to other parts of the country, and Cape Town became a pivotal site for Western Cape student revolt. Student leaders at
8910-427: The independence of the "Sovereign State of Good Hope". In the 2019 election , the DA retained their majority in the province, but with a reduction in support. It had won 24 seats with 55%. Helen Zille was term-limited and the DA premier candidate Alan Winde succeeded her. The ANC also lost support. It had received 12 seats with 28% support, its lowest showing since 1994. Veteran politician Peter Marais returned to
9020-593: The islands of the Indian Ocean are textbook cases of evolutionary processes; the dung beetles , day geckos , and lemurs are all examples of adaptive radiation . Many bones (250 bones per square metre) of recently extinct vertebrates have been found in the Mare aux Songes swamp in Mauritius, including bones of the Dodo bird ( Raphus cucullatus ) and Cylindraspis giant tortoise. An analysis of these remains suggests
9130-481: The margins of the Indian Ocean. The origin of this diversity is debated; the break-up of Gondwana can explain vicariance older than 100 mya, but the diversity on the younger, smaller islands must have required a Cenozoic dispersal from the rims of the Indian Ocean to the islands. A "reverse colonisation", from islands to continents, apparently occurred more recently; the chameleons , for example, first diversified on Madagascar and then colonised Africa. Several species on
9240-634: The mid-18th century, as opposed to the Western Ocean ( Atlantic ) before the Pacific was surmised. In modern times, the name Afro-Asian Ocean has occasionally been used. The Hindi name for the Ocean is हिंद महासागर ( Hind Mahāsāgar ; lit. transl. Ocean of India ). Conversely, Chinese explorers (e.g., Zheng He during the Ming dynasty ) who traveled to the Indian Ocean during
9350-464: The monsoon. Two large gyres , one in the northern hemisphere flowing clockwise and one south of the equator moving anticlockwise (including the Agulhas Current and Agulhas Return Current ), constitute the dominant flow pattern. During the winter monsoon (November–February), however, circulation is reversed north of 30°S and winds are weakened during winter and the transitional periods between
9460-622: The monsoons. The Indian Ocean contains the largest submarine fans of the world, the Bengal Fan and Indus Fan , and the largest areas of slope terraces and rift valleys . The inflow of deep water into the Indian Ocean is 11 Sv , most of which comes from the Circumpolar Deep Water (CDW). The CDW enters the Indian Ocean through the Crozet and Madagascar basins and crosses the Southwest Indian Ridge at 30°S. In
9570-543: The most productive ecosystems of the Indian Ocean ;— coastal areas produce 20 tones of fish per square kilometre. These areas, however, are also being urbanised with populations often exceeding several thousand people per square kilometre and fishing techniques become more effective and often destructive beyond sustainable levels while the increase in sea surface temperature spreads coral bleaching. Mangroves covers 80,984 km (31,268 sq mi) in
9680-477: The mountain peaks in the different ranges varies from 1,000 metres (3,300 ft) to 2,300 metres (7,500 ft). The valleys between ranges are generally very fertile, as they contain the weathered loamy soils of the Bokkeveld mudstones (see the diagrams below). The far interior forms part of the Karoo . This region of the province is generally arid and hilly, with a prominent escarpment that runs close to
9790-638: The northern end while the Laccadive Sea separates the Maldives from the southern tip of India. The Bay of Bengal is off the east coast of India. The Gulf of Mannar and the Palk Strait separate Sri Lanka from India, while Adam's Bridge separates the two. The Andaman Sea is located between the Bay of Bengal and the Andaman Islands. In Indonesia, the so-called Indonesian Seaway is composed of
9900-402: The population of the Western Cape as 7,433,020 people living in 2,264,032 households. As the province covers an area of 129,462 square kilometres (49,986 sq mi), the population density was 45.0 inhabitants per square kilometre (117/sq mi) and the household density 12.6 per square kilometre (33/sq mi). Southern Indian Ocean The Indian Ocean is the third-largest of
10010-451: The province is 129,462 square kilometres (49,986 sq mi), about 10.6% of the country's total. It is roughly the size of England or the State of Louisiana . Its capital city and largest city is Cape Town , and some other major cities include Stellenbosch , Worcester , Paarl , and George . The Garden Route and the Overberg are popular coastal tourism areas. The Western Cape
10120-402: The provincial legislature to serve as a cabinet of ministers, overseeing the departments of the provincial government . These departments are Agriculture, Community Safety , Cultural Affairs and Sport, Economic Development and Tourism, Education , Environmental Affairs and Development Planning, Health , Human Settlements, Local Government, Social Development, Transport and Public Works , and
10230-588: The provincial parliament as the sole representative of the Freedom Front Plus . Patricia de Lille formed another party, Good , and it achieved a seat. The DA continued to win a majority of the votes in the 2021 municipal elections , receiving 54% of the vote province-wide, with support in Cape Town at 58%. Since the late 2000s there has been growing support for Western Cape, or Greater Cape, independence from South Africa. Political parties such as
10340-508: The provincial parliament, while the ANC won 14 seats with 31% of the vote. The DA leader Helen Zille was elected Premier. In 2010 the Independent Democrats , which had won 3 seats with 5% of the vote, merged with the DA. In the 2014 election the DA won 59% of the votes and an absolute majority of 26 seats in the provincial parliament, while the ANC won 14 seats with 32% of the vote. In 2018 King Khoebaha Cornelius III Declared
10450-735: The reason for the Wemmershoek Dam to be built in this mountain. Most vegetation is of the Cape Floral Kingdom biome, and the primary rocks are of the Table Mountain Sandstone group of the Cape Supergroup . The region falls within the Mediterranean climatic zone, with cool, wet winters, with snow on the higher elevations and warm, dry summers. The one peak facing Boschendal wine farm
10560-530: The region include the effects of climate change , piracy, and strategic disputes over island territories. The Indian Ocean has been known by its present name since at least 1515, when the Latin form Oceanus Orientalis Indicus ( lit. ' Indian Eastern Ocean ' ) is attested, named after India, which projects into it. It was earlier known as the Eastern Ocean , a term that was still in use during
10670-531: The region is also extremely diverse, with one of the world's seven floral kingdoms almost exclusively endemic to the province, namely the Cape Floral Kingdom , most of which is covered by Fynbos (from the Afrikaans meaning "Fine Bush" (Dutch: Fijnbos), though precisely how it came to be referred to as such, is uncertain.). These evergreen heathlands are extremely rich in species diversity, with at least as many plant species occurring on Table Mountain as in
10780-485: The region meant that it has only recently been used as a harbour. The province's main harbour was built in Table Bay , which in its natural state was fully exposed to the northwesterly storms that bring rain to the province in winter, as well as the almost uninterrupted dry southeasterly winds in summer. But fresh water coming off Table Mountain and Devil's Peak allowed the early European settlers to build Cape Town on
10890-439: The shores of this less than satisfactory anchorage. The province is topographically exceptionally diverse. Most of the province falls within the Cape Fold Belt , a set of nearly parallel ranges of sandstone folded mountains of Cambrian - Ordovician age (the age of the rocks is from 510 to about 330 million years ago; their folding into mountains occurred about 350 to about 270 million years ago). The height of
11000-565: The south-easterly winds driving upwelling are weaker which results in warmer coastal waters than normal, while during La Niña the same winds are stronger and cause colder coastal waters. These effects on the winds are part of large scale influences on the tropical Atlantic and the South Atlantic High -pressure system, and changes to the pattern of westerly winds further south. There are other influences not known to be related to ENSO of similar importance. Some ENSO events do not lead to
11110-406: The summer and winter rainfall areas. Winter rainfall areas tend to get higher rainfall than normal and summer rainfall areas tend to get less rain. The effect on the summer rainfall areas is stronger and has led to severe drought in strong El Niño events. Sea surface temperatures off the west and south coasts of South Africa are affected by ENSO via changes in surface wind strength. During El Niño
11220-468: The third largest economy of South Africa's nine provinces, behind Gauteng and KwaZulu-Natal . The province's unemployment rate was 20.2%, which is the lowest in South Africa and considerably below the national unemployment rate of 31.9%. As of 2018, the Western Cape's Human Development Index is the highest in South Africa at 0.741 compared to the South African average of 0.705. As of 2023,
11330-599: The ventilation of the Indian Ocean thermocline . That continent also drives the Indian Ocean monsoon , the strongest on Earth, which causes large-scale seasonal variations in ocean currents, including the reversal of the Somali Current and Indian Monsoon Current . Because of the Indian Ocean Walker circulation there are no continuous equatorial easterlies. Upwelling occurs near the Horn of Africa and
11440-410: The world's five oceanic divisions, covering 70,560,000 km (27,240,000 sq mi) or approximately 20% of the water area of Earth's surface . It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by the Southern Ocean , or Antarctica , depending on the definition in use. The Indian Ocean has large marginal, or regional seas, such as
11550-487: The world. Long-term ocean temperature records show a rapid, continuous warming in the Indian Ocean, at about 1.2 °C (34.2 °F) (compared to 0.7 °C (33.3 °F) for the warm pool region) during 1901–2012. Research indicates that human induced greenhouse warming , and changes in the frequency and magnitude of El Niño (or the Indian Ocean Dipole ), events are a trigger to this strong warming in
11660-424: Was divided into the Western Cape, Northern Cape , Eastern Cape and part of North West . In the 1994 election, the Western Cape was one of two provinces that did not elect an African National Congress (ANC) provincial government (the other being KwaZulu-Natal ). The National Party (NP) won 53% of the votes and 23 seats in the 42-seat provincial legislature, and Hernus Kriel , a former Minister of Law and Order,
11770-611: Was elected Premier . He resigned in 1998 and was replaced by Gerald Morkel . The 1999 election marked the beginning of a period of great turbulence in Western Cape politics. No party achieved an absolute majority in the provincial parliament, as the ANC won 18 seats while the New National Party (NNP), successor to the NP, won 17. The NNP went into coalition with the Democratic Party (DP), which won 5 seats, to form
11880-724: Was elected in 2024 ; 24 seats are held by the Democratic Alliance , 8 by the African National Congress , 3 by the Patriotic Alliance , 2 by the Economic Freedom Fighters , and 1 each by the African Christian Democratic Party , Al Jama-ah , Good , Freedom Front Plus , and National Coloured Congress . The provincial parliament is responsible for legislating within its responsibilities as set out by
11990-405: Was later gradually restricted, and eventually abolished, under various National Party and United Party governments. In 1930 white women were enfranchised , and in 1931 property qualifications for white voters were removed . In 1936 black voters were then removed from the common voters' rolls and allowed only to elect separate members in 1936, and subsequently denied all representation in
12100-421: Was replaced by Peter Marais. In 2002 Marais resigned as Premier due to a sexual harassment scandal, and was replaced by NNP leader Marthinus van Schalkwyk . During the 2003 floor-crossing period four members of the provincial parliament crossed to the ANC, giving it an absolute majority of 22 seats in the 42-seat house. However, the ANC remained in coalition with the NNP and van Schalkwyk remained as Premier. In
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