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|Primary inflows||Barka River, Haddas River, Anseba River, Wadi Gasus|
|Primary outflows||Bab el Mandeb|
|Max. length||2,250 km (1,400 mi)|
|Max. width||355 km (221 mi)|
|Surface area||438,000 km2 (169,000 sq mi)|
|Average depth||490 m (1,610 ft)|
|Max. depth||3,040 m (9,970 ft)|
|Water volume||233,000 km3 (56,000 cu mi)|
The Red Sea (Arabic: البحر الأحمر) is a seawater inlet of the Indian Ocean, lying between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb strait and the Gulf of Aden. To the north lie the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez (leading to the Suez Canal). The Red Sea is a Global 200 ecoregion. The sea is underlain by the Red Sea Rift which is part of the Great Rift Valley.
Arabic is a Semitic language that first emerged in the 1st to 4th centuries CE. It is now the lingua franca of the Arab world. It is named after the Arabs, a term initially used to describe peoples living in the area bounded by Mesopotamia in the east and the Anti-Lebanon mountains in the west, in Northwestern Arabia and in the Sinai Peninsula. The ISO assigns language codes to thirty varieties of Arabic, including its standard form, Modern Standard Arabic, which is modernized Classical Arabic. This distinction exists primarily among Western linguists; Arabic speakers themselves generally do not distinguish between Modern Standard Arabic and Classical Arabic, but rather refer to both as al-ʿarabīyah al-fuṣḥā.
Seawater, or salt water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every kilogram of seawater has approximately 35 grams (1.2 oz) of dissolved salts. Average density at the surface is 1.025 kg/L. Seawater is denser than both fresh water and pure water because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration increases. At typical salinity, it freezes at about −2 °C (28 °F). The coldest seawater ever recorded was in 2010, in a stream under an Antarctic glacier, and measured −2.6 °C (27.3 °F). Seawater pH is typically limited to a range between 7.5 and 8.4. However, there is no universally accepted reference pH-scale for seawater and the difference between measurements based on different reference scales may be up to 0.14 units.
An inlet is an indentation of a shoreline, usually long and narrow, such as a small bay or arm, that often leads to an enclosed body of salt water, such as a sound, bay, lagoon, or marsh.
The Red Sea has a surface area of roughly 438,000 km2 (169,100 mi2), is about 2250 km (1398 mi) long and, at its widest point, 355 km (220.6 mi) wide. It has a maximum depth of 3,040 m (9,970 ft) in the central Suakin Trough, and an average depth of 490 m (1,608 ft). However, there are also extensive shallow shelves, noted for their marine life and corals. The sea is the habitat of over 1,000 invertebrate species, and 200 soft and hard corals. It is the world's northernmost tropical sea.
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically live in compact colonies of many identical individual polyps. Corals species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton.
Invertebrates are animals that neither possess nor develop a vertebral column, derived from the notochord. This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include arthropods, mollusks, annelids, and cnidarians.
The tropics are the region of the Earth surrounding the Equator. They are delimited in latitude by the Tropic of Cancer in the Northern Hemisphere at 23°26′12.1″ (or 23.43671°) N and the Tropic of Capricorn in the Southern Hemisphere at 23°26′12.1″ (or 23.43671°) S; these latitudes correspond to the axial tilt of the Earth. The tropics are also referred to as the tropical zone and the torrid zone. The tropics include all the areas on the Earth where the Sun contacts a point directly overhead at least once during the solar year - thus the latitude of the tropics is roughly equal to the angle of the Earth's axial tilt.
The International Hydrographic Organization defines the limits of the Red Sea as follows:
The International Hydrographic Organization (IHO) is an intergovernmental organization representing hydrography. In October 2019 the IHO comprised 93 Member States.
Red Sea is a direct translation of the Greek Erythra Thalassa (Ερυθρὰ Θάλασσα), Latin Mare Rubrum (alternatively Sinus Arabicus, literally "Arabian Gulf"), Arabic : البحر الأحمر, romanized: Al-Baḥr Al-Aḥmar (alternatively بحر القلزم Baḥr Al-Qulzum, literally "the Sea of Clysma"), Somali Badda Cas and Tigrinya Qeyyiḥ bāḥrī (ቀይሕ ባሕሪ). The name of the sea may signify the seasonal blooms of the red-coloured Trichodesmium erythraeum near the water's surface. A theory favoured by some modern scholars is that the name red is referring to the direction south, just as the Black Sea's name may refer to north. The basis of this theory is that some Asiatic languages used colour words to refer to the cardinal directions. Herodotus on one occasion uses Red Sea and Southern Sea interchangeably.
Greek is an independent branch of the Indo-European family of languages, native to Greece, Cyprus and other parts of the Eastern Mediterranean and the Black Sea. It has the longest documented history of any living Indo-European language, spanning at least 3500 years of written records. Its writing system has been the Greek alphabet for the major part of its history; other systems, such as Linear B and the Cypriot syllabary, were used previously. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic, and many other writing systems.
Latin is a classical language belonging to the Italic branch of the Indo-European languages. The Latin alphabet is derived from the Etruscan and Greek alphabets and ultimately from the Phoenician alphabet.
The romanization of Arabic writes written and spoken Arabic in the Latin script in one of various systematic ways. Romanized Arabic is used for a number of different purposes, among them transcription of names and titles, cataloging Arabic language works, language education when used in lieu of or alongside the Arabic script, and representation of the language in scientific publications by linguists. These formal systems, which often make use of diacritics and non-standard Latin characters and are used in academic settings or for the benefit of non-speakers, contrast with informal means of written communication used by speakers such as the Latin-based Arabic chat alphabet.
The name in Hebrew Yam Suph (Hebrew : ים סוף, lit. 'Sea of Reeds') is of biblical origin. The name in Coptic : ⲫⲓⲟⲙ `ⲛϩⲁϩPhiom Enhah ("Sea of Hah") is connected to Ancient Egyptian root ḥḥ which refers to water and sea (for example the names of the Ogdoad gods Heh and Hauhet) - Pa-yem 'Aa en Mu-Ked, the ancient Egyptian name of the Red Sea.
In the Exodus narrative, Yam Suph is the body of water which the Israelites crossed following their exodus from Egypt. The same phrase appears in over 20 other places in the Hebrew Bible. While traditionally understood to refer to the Red Sea, the appropriate translation of the phrase remains a matter of dispute; as does the exact location referred to. It is now often translated as Sea of Reeds - with several competing theories as to where this was.
Hebrew is a Northwest Semitic language native to Israel. Modern Hebrew was spoken by over nine million people worldwide in 2013. Historically, it is regarded as the language of the Israelites and their ancestors, although the language was not referred to by the name "Hebrew" in the Tanakh itself. The earliest examples of written Paleo-Hebrew date from the 10th century BCE. Hebrew belongs to the West Semitic branch of the Afroasiatic language family. Hebrew is the only Canaanite language still spoken, and the only truly successful example of a revived dead language.
Literal translation, direct translation, or word-for-word translation is a translation of a text done by translating each word separately, without looking at how the words are used together in a phrase or sentence.
Historically, it was also known to western geographers as Mare Mecca (Sea of Mecca), and Sinus Arabicus (Gulf of Arabia).Some ancient geographers called the Red Sea the Arabian Gulf or Gulf of Arabia.
The association of the Red Sea with the biblical account of the Israelites crossing the Red Sea is ancient, and was made explicit in the Septuagint translation of the Book of Exodus from Hebrew to Koine Greek in approximately the third century B.C. In that version, the Yam Suph (Hebrew : ים סוף, lit. 'Sea of Reeds') is translated as Erythra Thalassa (Red Sea). Although reeds do not grow in the Red Sea today (reeds do not grow in salt water), Professor Colin Humphreys explains the discrepancy on the basis that a freshwater marsh of reeds could have existed around Aqaba.
The Red Sea is one of four seas named in English after common color terms — the others being the Black Sea, the White Sea and the Yellow Sea. The direct rendition of the Greek Erythra thalassa in Latin as Mare Erythraeum refers to the north-western part of the Indian Ocean, and also to a region on Mars.
The earliest known exploration of the Red Sea was conducted by ancient Egyptians, as they attempted to establish commercial routes to Punt. One such expedition took place around 2500 BCE, and another around 1500 BCE (by Hatshepsut). Both involved long voyages down the Red Sea. : יַם סוּף). Yam Suph was traditionally identified as the Red Sea. Rabbi Saadia Gaon (882‒942), in his Judeo-Arabic translation of the Pentateuch, identifies the crossing place of the Red Sea as Baḥar al-Qulzum, meaning the Gulf of Suez.The biblical Book of Exodus tells the account of the Israelites' crossing of a body of water, which the Hebrew text calls Yam Suph (Hebrew
In the 6th century BCE, Darius the Great of Persia sent reconnaissance missions to the Red Sea, improving and extending navigation by locating many hazardous rocks and currents. A canal was built between the Nile and the northern end of the Red Sea at Suez. In the late 4th century BCE, Alexander the Great sent Greek naval expeditions down the Red Sea to the Indian Ocean. Greek navigators continued to explore and compile data on the Red Sea. Agatharchides collected information about the sea in the 2nd century BCE. The Periplus of the Erythraean Sea ("Periplus of the Red Sea"), a Greek periplus written by an unknown author around the 1st century , contains a detailed description of the Red Sea's ports and sea routes.The Periplus also describes how Hippalus first discovered the direct route from the Red Sea to India.
The Red Sea was favored for Roman trade with India starting with the reign of Augustus, when the Roman Empire gained control over the Mediterranean, Egypt, and the northern Red Sea. The route had been used by previous states but grew in the volume of traffic under the Romans. From Indian ports goods from China were introduced to the Roman world. Contact between Rome and China depended on the Red Sea, but the route was broken by the Aksumite Empire around the 3rd century AD.
During the Middle Ages, the Red Sea was an important part of the spice trade route. In 1183, Raynald of Châtillon launched a raid down the Red Sea to attack the Muslim pilgrim convoys to Mecca.The possibility that Raynald's fleet might sack the holy cities of Mecca and Medina caused fury throughout the Muslim world. However, it appears that Reynald's target were the lightly armed Muslim pilgrim convoys rather the well guarded cities of Mecca and Medina, and the belief in the Muslim world that Reynald was seeking to sack the holy cities was due to the proximity of those cities to the areas that Raynald raided. In 1513, trying to secure that channel to Portugal, Afonso de Albuquerque laid siege to Aden but was forced to retreat. They cruised the Red Sea inside the Bab al-Mandab, as the first fleet from Europe in modern times to have sailed these waters.
In 1798, France ordered General Napoleon to invade Egypt and take control of the Red Sea. Although he failed in his mission, the engineer Jean-Baptiste Lepère, who took part in it, revitalised the plan for a canal which had been envisaged during the reign of the Pharaohs. Several canals were built in ancient times from the Nile to the Red Sea along or near the line of the present Sweet Water Canal, but none lasted for long. The Suez Canal was opened in November 1869. After the Second World War, the Americans and Soviets exerted their influence whilst the volume of oil tanker traffic intensified. However, the Six-Day War culminated in the closure of the Suez Canal from 1967 to 1975. Today, in spite of patrols by the major maritime fleets in the waters of the Red Sea, the Suez Canal has never recovered its supremacy over the Cape route, which is believed to be less vulnerable to piracy.
The Red Sea is between arid land, desert and semi-desert. Reef systems are better developed along the Red Sea mainly because of its greater depths and an efficient water circulation pattern. The Red Sea water mass-exchanges its water with the Arabian Sea, Indian Ocean via the Gulf of Aden. These physical factors reduce the effect of high salinity caused by evaporation in the north and relatively hot water in the south.[ citation needed ]
The climate of the Red Sea is the result of two monsoon seasons; a northeasterly monsoon and a southwesterly monsoon. Monsoon winds occur because of differential heating between the land and the sea. Very high surface temperatures and high salinities make this one of the warmest and saltiest bodies of seawater in the world. The average surface water temperature of the Red Sea during the summer is about 26 °C (79 °F ) in the north and 30 °C (86 °F) in the south, with only about 2 °C (3.6 °F) variation during the winter months. The overall average water temperature is 22 °C (72 °F). Temperature and visibility remain good to around 200 m (656 ft). The sea is known for its strong winds and unpredictable local currents.[ citation needed ]
The rainfall over the Red Sea and its coasts is extremely low, averaging 0.06 m (2.36 in) per year. The rain is mostly short showers, often with thunderstorms and occasionally with dust storms. The scarcity of rainfall and no major source of fresh water to the Red Sea result in excess evaporation as high as 205 cm (81 in) per year and high salinity with minimal seasonal variation. A recent underwater expedition to the Red Sea offshore from Sudan and Eritrea found surface water temperatures 28 °C (82 °F ) in winter and up to 34 °C (93 °F ) in the summer, but despite that extreme heat, the coral was healthy with much fish life with very little sign of coral bleaching, with only 9% infected by Thalassomonas loyana , the 'white plague' agent. Favia favus coral there harbours a virus, BA3, which kills T. loyana. Plans are afoot to use samples of these corals' apparently heat-adapted commensal algae to salvage bleached coral elsewhere.[ citation needed ]
The Red Sea is one of the saltiest bodies of water in the world, owing to high evaporation and low precipitation; no significant rivers or streams drain into the sea, and its southern connection to the Gulf of Aden, an arm of the Indian Ocean, is narrow. ‰ in the southern part and 41 ‰ in the northern part around the Gulf of Suez, with an average of 40 ‰. (Average salinity for the world's seawater is ~35 ‰ on the Practical Salinity Scale, or PSU; that translates to 3.5% of actual dissolved salts.)Its salinity ranges from between ~36
In general, tide ranges between 0.6 m (2.0 ft) in the north, near the mouth of the Gulf of Suez and 0.9 m (3.0 ft) in the south near the Gulf of Aden, but it fluctuates between 0.20 m (0.66 ft) and 0.30 m (0.98 ft) away from the nodal point. The central Red Sea (Jeddah area) is therefore almost tideless, and as such the annual water level changes are more significant. Because of the small tidal range the water during high tide inundates the coastal sabkhas as a thin sheet of water up to a few hundred metres rather than flooding the sabkhas through a network of channels. However, south of Jeddah in the Shoiaba area, the water from the lagoon may cover the adjoining sabkhas as far as 3 km (2 mi), whereas north of Jeddah in the Al-Kharrar area the sabkhas are covered by a thin sheet of water as far as 2 km (1.2 mi). The prevailing north and northeast winds influence the movement of water in the coastal inlets to the adjacent sabkhas, especially during storms. Winter mean sea level is 0.5 m (1.6 ft) higher than in summer. Tidal velocities passing through constrictions caused by reefs, sand bars and low islands commonly exceed 1–2 m/s (3–6.5 ft/s). Coral reefs in the Red Sea are near Egypt, Eritrea, Israel, Saudi Arabia, and Sudan.[ citation needed ]
Detailed information regarding current data is lacking, partially because the currents are weak and both spatially and temporally variable. The variation of temporal and spatial currents is as low as 0.5 m (1.6 ft) and are governed all by wind. During the summer, NW winds drive surface water south for about four months at a velocity of 15–20 cm/s (6–8 in/s), whereas in winter the flow is reversed resulting in the inflow of water from the Gulf of Aden into the Red Sea. The net value of the latter predominates, resulting in an overall drift to the north end of the Red Sea. Generally, the velocity of the tidal current is between 50–60 cm/s (20–23.6 in/s) with a maximum of 1 m/s (3.3 ft/s) at the mouth of the al-Kharrar Lagoon. However, the range of the north-northeast current along the Saudi coast is 8–29 cm/s (3–11.4 in/s).[ citation needed ]
The north part of the Red Sea is dominated by persistent north-west winds, with speeds ranging between 7 km/h (4.3 mph) and 12 km/h (7.5 mph). The rest of the Red Sea and the Gulf of Aden are subjected to regular and seasonally reversible winds. The wind regime is characterized by seasonal and regional variations in speed and direction with average speed generally increasing northward.
Wind is the driving force in the Red Sea to transport material as suspension or as bedload. Wind-induced currents play an important role in the Red Sea in resuspending bottom sediments and transferring materials from sites of dumping to sites of burial in quiescent environment of deposition. Wind-generated current measurement is therefore important in order to determine the sediment dispersal pattern and its role in the erosion and accretion of the coastal rock exposure and the submerged coral beds.
The Red Sea was formed by the Arabian peninsula being split from the Horn of Africa by movement of the Red Sea Rift. This split started in the Eocene and accelerated during the Oligocene. The sea is still widening (in 2005, following a three-week period of tectonic activity it had grown by 8m), °C (140 °F), saline brines and associated metalliferous muds. The hot solutions were emanating from an active subseafloor rift. Lake Asal in Djibouti is eligible as an experimental site to study the evolution of the deep hot brines of the Red Sea. Indeed, by observing the strontium isotope composition of the Red Sea brines, it is easy to deduce how these salt waters found at the bottom of the Red Sea could have evolved in a similar way to Lake Asal, which ideally represents their compositional extreme. The high salinity of the waters was not hospitable to living organisms.and it is considered that it will become an ocean in time (as proposed in the model of John Tuzo Wilson). In 1949, a deep water survey reported anomalously hot brines in the central portion of the Red Sea. Later work in the 1960s confirmed the presence of hot, 60
Sometime during the Tertiary period, the Bab el Mandeb closed and the Red Sea evaporated to an empty hot dry salt-floored sink. Effects causing this would have been:
A number of volcanic islands rise from the center of the sea. Most are dormant. However, in 2007, Jabal al-Tair island in the Bab el Mandeb strait erupted violently. Two new islands were formed in 2011 and 2013 in the Zubair Archipelago, a small chain of islands owned by Yemen. The first island, Sholan Island, emerged in an eruption in December 2011, the second island, Jadid, emerged in September 2013.
The Durwara 2 Field was discovered in 1963, while the Suakin 1 Field and the Bashayer 1A Field were discovered in 1976, on the Egyptian side of the Red Sea. The Barqan Field was discovered in 1969, and the Midyan Field in 1992, both within the Midyan Basin on the Saudi Arabian side of the Red Sea. The 20-m thick Middle Miocene Maqna Formation is an oil source rock in the basin. Oil seeps occur near the Farasan Islands, the Dahlak Archipelago, along the coast of Eritrea, and in the southeastern Red Sea along the coasts of Saudi Arabia and Yemen.
In terms of mineral resources the major constituents of the Red Sea sediments are as follows:
The Red Sea is a rich and diverse ecosystem. More than 1200 species of fishhave been recorded in the Red Sea, and around 10% of these are found nowhere else. This also includes 42 species of deepwater fish.
The rich diversity is in part due to the 2,000 km (1,240 mi) of coral reef extending along its coastline; these fringing reefs are 5000–7000 years old and are largely formed of stony acropora and porites corals. The reefs form platforms and sometimes lagoons along the coast and occasional other features such as cylinders (such as the Blue Hole (Red Sea) at Dahab). These coastal reefs are also visited by pelagic species of Red Sea fish, including some of the 44 species of shark.
It contains 175 species of nudibranch, many of which are only found in the Red Sea.
The Red Sea also contains many offshore reefs including several true atolls. Many of the unusual offshore reef formations defy classic (i.e., Darwinian) coral reef classification schemes, and are generally attributed to the high levels of tectonic activity that characterize the area.
The special biodiversity of the area is recognized by the Egyptian government, who set up the Ras Mohammed National Park in 1983. The rules and regulations governing this area protect local marine life, which has become a major draw for diving enthusiasts.
Divers and snorkellers should be aware that although most Red Sea species are innocuous, a few are hazardous to humans: see Red Sea species hazardous to humans.
Other marine habitats include sea grass beds, salt pans, mangroves and salt marshes.
There is extensive demand for desalinated water to meet the needs of the population and the industries along the Red Sea.
There are at least 18 desalination plants along the Red Sea coast of Saudi Arabia which discharge warm brine and treatment chemicals (chlorine and anti-scalants) that bleach and kill corals and cause diseases in the fish. This is only localized, but it may intensify with time and profoundly impact the fishing industry.
The water from the Red Sea is also used by oil refineries and cement factories for cooling.
The Red Sea is part of the sea roads between Europe, the Persian Gulf and East Asia, and as such has heavy shipping traffic. Government-related bodies with responsibility to police the Red Sea area include the Port Said Port Authority, Suez Canal Authority and Red Sea Ports Authority of Egypt, Jordan Maritime Authority, Israel Port Authority, Saudi Ports Authority and Sea Ports Corporation of Sudan.
This section contains a list of miscellaneous information. (May 2019)
The sea is known for its recreational diving sites, such as Ras Mohammed, SS Thistlegorm (shipwreck), Elphinstone Reef, The Brothers, Daedalus Reef, St.John's Reef, Rocky Island in Egyptand less known sites in Sudan such as Sanganeb, Abington, Angarosh and Shaab Rumi.
The Red Sea became a popular destination for diving after the expeditions of Hans Hass in the 1950s, and later by Jacques-Yves Cousteau.Popular tourist resorts include El Gouna, Hurghada, Safaga, Marsa Alam, on the west shore of the Red Sea, and Sharm-el-Sheikh, Dahab, and Taba on the Egyptian side of Sinaï, as well as Aqaba in Jordan and Eilat in Israel in an area known as the Red Sea Riviera.
The popular tourist beach of Sharm el-Sheikh was closed to all swimming in December 2010 due to several serious shark attacks, including a fatality. As of December 2010, scientists are investigating the attacks and have identified, but not verified, several possible causes including over-fishing which causes large sharks to hunt closer to shore, tourist boat operators who chum offshore for shark-photo opportunities, and reports of ships throwing dead livestock overboard. The sea's narrowness, significant depth, and sharp drop-offs, all combine to form a geography where large deep-water sharks can roam in hundreds of meters of water, yet be within a hundred meters of swimming areas.
Tourism to the region has been threatened by occasional terrorist attacks, and by incidents related to food safety standards.
The Red Sea may be geographically divided into three sections: the Red Sea proper, and in the north, the Gulf of Aqaba and the Gulf of Suez. The six countries bordering the Red Sea proper are:
The Gulf of Suez is entirely bordered by Egypt. The Gulf of Aqaba borders Egypt, Israel, Jordan and Saudi Arabia.
In addition to the standard geographical definition of the six countries bordering the Red Sea cited above, areas such as Somalia are sometimes also described as Red Sea territories. This is primarily due to their proximity to and geological similarities with the nations facing the Red Sea and/or political ties with said areas.
Towns and cities on the Red Sea coast (including the coasts of the Gulfs of Aqaba and Suez) include:
The Arabian Sea is a region of the northern Indian Ocean bounded on the north by Pakistan and Iran, on the west by the Gulf of Aden, Guardafui Channel and the Arabian Peninsula, on the southeast by the Laccadive Sea, on the southwest by the Somali Sea, and on the east by India. Its total area is 3,862,000 km2 (1,491,000 sq mi) and its maximum depth is 4,652 meters (15,262 ft). The Gulf of Aden in the west connects the Arabian Sea to the Red Sea through the strait of Bab-el-Mandeb, and the Gulf of Oman is in the northwest, connecting it to the Persian Gulf.
The Persian Gulf is a mediterranean sea in Western Asia. The body of water is an extension of the Indian Ocean through the Strait of Hormuz and lies between Iran to the northeast and the Arabian Peninsula to the southwest. The Shatt al-Arab river delta forms the northwest shoreline.
Qatar is a peninsula in the east of Arabia, bordering the Persian Gulf and Saudi Arabia, in a strategic location near major petroleum deposits. Qatar occupies 11,437 km2 (4,416 sq mi) on a peninsula that extends approximately to 160 km (99 mi) north into the Persian Gulf from the Arabian Peninsula.
Yemen is located in Southwest Asia, at the southern tip of the Arabian Peninsula, between Oman and Saudi Arabia. It is situated at the entrance to the Bab-el-Mandeb Strait, which links the Red Sea to the Indian Ocean and is one of the most active and strategic shipping lanes in the world. Yemen has an area of 527,970 square kilometres (203,850 sq mi), including the islands of Perim at the southern end of the Red Sea and Socotra at the entrance to the Gulf of Aden. Yemen's land boundaries total 1,746 kilometres (1,085 mi). Yemen borders Saudi Arabia to the north and Oman to the northeast.
The Arabian Peninsula, or simply Arabia, is a peninsula of Western Asia situated northeast of Africa on the Arabian plate. From a geographical perspective, it is considered a subcontinent of Asia.
The Gulf of Aden, formerly known as the Gulf of Berbera, is a deepwater gulf amidst Yemen to the north, the Arabian Sea and Guardafui Channel to the east, Somalia to the south, and Djibouti to the west. In the northwest, it connects with the Red Sea through the Bab-el-Mandeb strait, and in the southeast, it connects with the Indian Ocean through the Guardafui Channel. To the west, it narrows into the Gulf of Tadjoura, in the Horn of Africa. The Gulf of Aden separates the Arabian peninsula with the Horn of Africa.
The Kingdom of Bahrain consists of Bahrain Island and 33 of the 37 Bahrain Islands, lying in the Persian Gulf's Gulf of Bahrain off the north shore of Asia's Arabian Peninsula. Bahrain's capital city is Manama. The islands are about 24 kilometers (15 mi) off the east coast of Saudi Arabia and 28 kilometers (17 mi) from Qatar. The total area of the country is about 780 square kilometers (301 sq mi), about 3.5 times the size of the District of Columbia.
The Straits of Tiran are the narrow sea passages between the Sinai and Arabian peninsulas which separate the Gulf of Aqaba from the Red Sea proper. The distance between the two peninsulas is about 13 km. The body is named after Tiran Island located at its entrance 5 or 6 km from the Sinai, on which the Multinational Force and Observers has an observation post to monitor the compliance of Egypt in maintaining freedom of navigation of the straits as provided under the Egypt–Israel Peace Treaty.
The Gulf of Suez is a gulf at the northern end of the Red Sea, to the west of the Sinai Peninsula. Situated to the east of the Sinai Peninsula is the smaller Gulf of Aqaba. The gulf was formed within a relatively young but now inactive Gulf of Suez Rift rift basin, dating back about 26 million years. It stretches some 300 kilometres (190 mi) north by northwest, terminating at the Egyptian city of Suez and the entrance to the Suez Canal. Along the mid-line of the gulf is the boundary between Africa and Asia. The entrance of the gulf lies atop the mature Gemsa oil and gas field.
The Gulf of Aqaba or Gulf of Eilat is a large gulf at the northern tip of the Red Sea, east of the Sinai Peninsula and west of the Arabian mainland. Its coastline is divided between four countries: Egypt, Israel, Jordan, and Saudi Arabia.
Perim, also called Mayyun in Arabic, is a volcanic island in the Strait of Mandeb at the south entrance into the Red Sea, off the south-west coast of Yemen and belonging to Yemen. It administratively belongs to Bab al-Mandab District, Taiz Governorate. The island of Perim divides the strait of Mandeb into two channels.
Ras Siyyan or Ras Siyan is a peninsula in the Obock Region of Djibouti, on the Bab-el-Mandeb strait, about 20 km southwest of Perim Island.
Tiran (Arabic: جزيرة تيران Jezîret Tīrān, Jazīrat Tīrān, and Yotvat Island, is an island within the maritime borders of Saudi Arabia that was administered by Egypt in the past. However, sovereignty of the two Red Sea islands, Tiran and Sanafir, was ceded officially to Saudi Arabia as part of a maritime borders agreement between Egypt and Saudi Arabia. The agreement subsequently was approved by the Egyptian Parliament and finally ratified by the Egyptian President on 24 June 2017.
A term typically used by Earth scientists, a sabkha is a coastal, supratidal mudflat or sandflat in which evaporite-saline minerals accumulate as the result of semiarid to arid climate. Sabkhas are gradational between land and intertidal zone within restricted coastal plains just above normal high-tide level. Within a sabkha, evaporite-saline minerals sediments typically accumulate below the surface of mudflats or sandflats. Evaporite-saline minerals, tidal-flood, and eolian deposits characterize many sabkhas found along modern coastlines. The accepted type locality for a sabkha is at the southern coast of the Persian Gulf, in the United Arab Emirates. Sabkha is a phonetic translation of the Arabic word used to describe any form of salt flat. A sabkha is also known as a sabkhah,sebkha, or coastal sabkha.
Robert Moresby was a captain of the East India Company's Bombay Marine/Indian Navy who distinguished himself as a hydrographer, maritime surveyor and draughtsman.
Sanafir Island is an island in the Straits of Tiran east of Tiran Island. It is about 33 km2 (13 sq mi) it is located at the entrance to the Straits of Tiran, which separates the Gulf of Aqaba from the Red Sea. The island is about 2.5 km from Tiran Island. The island are characterized by floating coral reefs.
Acropora muricata, commonly called staghorn coral, is a species of acroporid coral found in the Gulf of Aden, the Red Sea, Indian Ocean, Persian Gulf, Australia, central Indo-Pacific, Japan, Southeast Asia, the East China Sea and the oceanic central and western Pacific Ocean. It is found in tropical shallow reefs, slopes of reefs, and in lagoons, from depths of 5 to 30 m. It was described by Dana in 1846.
Apolemichthys xanthotis, common names yellow-ear angelfish and Red Sea angelfish, is a species of marine fish in the family Pomacanthidae.
The wildlife of Yemen is substantial and varied. Yemen is a large country in the southern half of the Arabian Peninsula with several geographic regions, each with a diversity of plants and animals adapted to their own particular habitats. As well as high mountains and deserts, there is a coastal plain and long coastline. The country has links with Europe and Asia, and the continent of Africa is close at hand. The flora and fauna have influences from all these regions and the country also serves as a staging post for migratory birds.
Aibat is the second-largest of the six islands of the Zeila Archipelago. It has a lighthouse. It is a low and sandy island, with bushes, that is around 1.75 miles in length and around 0.55 miles in breadth. It is mostly surrounded by a reef.
The answer is because this gulf terminated in a freshwater marsh of reeds on account of the extremely unusual physical geography of the region.