How large is the Caspian Sea?
Caspian Sea
The Caspian has characteristics common to both seas and lakes. It is often listed as the world's largest lake, although it is not a freshwater lake. It contains about 3.5 times more water, by volume, than all five of North America's Great Lakes combined. The Caspian was once part of the Tethys Ocean, but became landlocked about 5.5 million years ago due to plate tectonics. The Volga River (about 80% of the inflow) and the Ural River discharge into the Caspian Sea, but it has no natural outflow other than by evaporation. Thus the Caspian ecosystem is a closed basin, with its own sea level history that is independent of the eustatic level of the world's oceans.
Lake Superior
Lake Superior empties into Lake Huron via the St. Marys River and the Soo Locks. Lake Superior is the largest freshwater lake in the world in area (if Lakes Michigan and Huron are taken separately; "see Lake Michigan–Huron"), and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa. The Caspian Sea, while larger than Lake Superior in both surface area and volume, is brackish; though presently isolated, prehistorically the Caspian has been repeatedly connected to and isolated from the Mediterranean via the Black Sea.
Europe
Since around 1850, Europe is most commonly considered to be separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas and the waterways of the Turkish Straits. Although the term "continent" implies physical geography, the land border is somewhat arbitrary and has been redefined several times since its first conception in classical antiquity. The division of Eurasia into two continents reflects East-West cultural, linguistic and ethnic differences which vary on a spectrum rather than with a sharp dividing line. The geographic border also does not follow political boundaries, with Turkey, Russia and Kazakhstan being transcontinental countries. A strict application of the Caucasus Mountains boundary also places two comparatively small countries, Azerbaijan and Georgia, in both continents.
Caspian, Michigan
According to the United States Census Bureau, the city has a total area of , all land.
Geography of Kazakhstan
By contrast, the water level of the Caspian Sea has been rising steadily since 1978 for reasons that scientists have not been able to explain fully. At the northern end of the sea, more than 10,000 square kilometres of land in Atyrau Province have been flooded. Experts estimate that if current rates of increase persist, the coastal city of Atyrau, eighty-eight other population centers, and many of Kazakhstan's Caspian oil fields could be submerged by 2020.
Irrigation in Iran
The Caspian Sea is shared by Iran, Russia, Kazakhstan, Azerbaijan and Turkmenistan. Its salinity is about a third of that of sea water.
Framework Convention for the Protection of the Marine Environment of the Caspian Sea
The objective of this convention is “the protection of the Caspian environment from all sources of pollution including the protection, preservation, restoration and sustainable and rational use of the biological resources of the Caspian Sea”.
Caspian Sea Monster
The KM was the largest and heaviest aircraft in the world from 1966 to 1988, and its surprise discovery by the United States and the subsequent attempts to determine its purpose became a distinctive event of espionage during the Cold War.
Azerbaijan
The main water sources are surface waters. However, only 24 of the 8,350 rivers are greater than in length. All the rivers drain into the Caspian Sea in the east of the country. The largest lake is Sarysu (67 km²), and the longest river is Kur (1,515 km), which is transboundary with Armenia. Azerbaijan's four main islands in the Caspian Sea have a combined area of over thirty square kilometers.
Caspian lowland desert
The ecoregion is approximately contained within the Caspian Depression, and sunken geological region feeding in to the Caspian, the surface of which is itself at below worldwide sea level. The northern section is almost 900 km wide, and stretches up to 300 km inland across Russia and Kazakhstan. The sector along the southeast coast of the Caspian is mostly in Turkmenistan. Elevations throughout the ecoregion range between -28 and +100 meters. The dry areas were once underwater, but as the sea has slowly receded the dry areas have revealed a landscape of sand dunes, ridges, salt domes, salt pans ('shors'), and clay deserts ('takyrs'). 
The climate of the ecoregion is represented by that in the Volga delta, in the Astrakhan Nature Reserve, where the climate is cool semi-arid (Köppen climate classification BSk). This climate is characterized by high variation in temperature, both daily and seasonally; with low precipitation. Average annual precipitation in the Caspian lowlands is 198 mm. Average temperature in January is , and in July is
Russian conquest of Central Asia
The area was bounded on the west by the Caspian Sea, on the north by the Siberian forests and on the east by the mountains along the former Sino-Soviet border. The southern border was political rather than natural. It was about 1300 miles from north to south, 1500 miles wide in the north and 900 miles wide in the south. Because the southeast corner (Kyrgyzstan and Tajikistan) is mountainous the flat desert-steppe country is only about 700 miles wide in the south. Using modern borders, the area was 1,545,730 square miles, about half the size of the United States without Alaska. On the east side two mountain ranges project into the desert. Between them is the well-populated Ferghana Valley which is approximately the 'notch' on the west side of Kyrgyzstan. North of this projection the mountain-steppe boundary extends along the north border of Kyrgyzstan about 400 miles before the mountains turn north again.
Caspian Sea
The last short-term sea-level cycle started with a sea-level fall of from 1929 to 1977, followed by a rise of from 1977 until 1995. Since then smaller oscillations have taken place.
Caspian Sea
The Volga River, the largest in Europe, drains 20% of the European land area and is the source of 80% of the Caspian's inflow. Its lower reaches are heavily developed with numerous unregulated releases of chemical and biological pollutants. Although existing data is sparse and of questionable quality, there is ample evidence to suggest that the Volga is one of the principal sources of transboundary contaminants into the Caspian.
Caspian Sea
The magnitude of fossil fuel extraction and transport activity in the Caspian also poses a risk to the environment. The island of Vulf off Baku, for example, has suffered ecological damage as a result of the petrochemical industry; this has significantly decreased the number of species of marine birds in the area. Existing and planned oil and gas pipelines under the sea further increase the potential threat to the environment.
Caspian horse
Although there are no records of breeding prior to 1965, the foundation animals included in the International Caspian Stud Book were proven by Louise Firouz to breed true to type and their descendants have, for the most part, retained Caspian characteristics. They are therefore an established breed. Improved living conditions outside Iran have produced Caspians that have grown larger than their Iranian foundation parents; modern Caspians range between 10hh (102 cm) and occasionally 12.2 hh(127 cm), averaging 11.2 hh (117 cm).
Caspian Depression
The Caspian Depression is below sea-level, consisting of large areas of marshlands in the eastern region. It is one of the largest flat lowland areas in Central Asia, covering approximately . The area is very rich in underground oil and gas reserves, and oil and natural gas pipelines cross the depression from north to south and east to west. Many geologists believe the Caspian Sea and the depression were formed by tectonic forces. Some of them also believe that the North Caspian depression became separated from the open ocean in ancient times to form an enormous salt lake. Part of the ancient Silk Road ran through this region. The two largest cities in the depression are Astrakhan in Russia, and Atyrau in Kazakhstan. Today, the region is used mainly for livestock raising.
Geography of the Cayman Islands
The Cayman Islands have a land area of approximately 1.5 times the size of Washington, D.C. and just larger than Saint Kitts and Nevis. The Cayman Islands have a coastline of . The Cayman Islands make a maritime claim of a exclusive fishing zone and a territorial sea of .
Caspian Sea
The Caspian Sea region presently is a significant, but not major, supplier of crude oil to world markets, based upon estimates by BP Amoco and the U.S. Energy Information Administration, U.S. Department of Energy. The Caspian region produced an estimated 1.4–1.5 million barrels per day (bbls/day) including natural gas liquids in 2001, or 1.9% of total world output (table 1).3 More than a dozen non-Caspian countries each produce more than 1.5 million bbls/day. Caspian region production has been higher, but suffered during the collapse of the Soviet Union and the years following. Kazakhstan accounts for 55% and Azerbaijan for about 20% of current regional oil output.
Caspian Flotilla
The Caspian Flotilla (CF) was created in November 1722 in Astrakhan by the order of Peter the Great. Led by the admiral Fyodor Apraksin, it participated in Peter's Persian campaign of 1722–1723 and the Russo-Persian War (1804–1813), assisting the Russian army in capturing Derbent and Baku during the Persian Expedition of 1796. As a result of the Treaty of Gulistan of 1813, the CF remained the only military flotilla in the Caspian Sea. Baku became its main base in 1867.
Brackish water
The Caspian Sea is the world's largest lake and contains brackish water with a salinity about one-third that of normal seawater. The Caspian is famous for its peculiar animal fauna, including one of the few non-marine seals (the Caspian seal) and the great sturgeons, a major source of caviar.
Caspian lamprey
The Caspian lamprey is a slim-bodied, eel-like fish that grows to a length of about . The longest recorded specimen was long and weighed . Like other lampreys, it has no jaws, but it has a round oral disc surrounding the mouth. Inside this it has several radiating rows of tiny, backward-facing teeth. There is a single nostril near the eyes. There are no gill covers and the seven gill openings are visible just behind the head. The fish has no scales or paired fins, but has two elongated dorsal fins, the hindmost of which nearly joins onto the small tail fin. The Caspian lamprey is a silvery-grey colour.
Caspian Sea
The rising level of the Caspian Sea between 1994 and 1996 reduced the number of habitats for rare species of aquatic vegetation. This has been attributed to a general lack of seeding material in newly formed coastal lagoons and water bodies.
Caspian Sea
Baku, which is the starting point of all sea routes of Azerbaijan, is the largest port of the Caspian Sea. Azerbaijan has access to the oceans along the Caspian Sea-Volga-Volga-Don Canal, and the Don-Sea of Azov. Along with the Volga-Don Canal, the Azerbaijani vessels have the opportunity to enter the world ocean through the Volga-Baltic and White Sea-Baltic canals. Moreover, oil tankers are being transported through the Caspian Sea. Baku Sea Trade Port and Caspian Shipping Company CJSC, have a big role in the sea transportation of Azerbaijan. The Caspian Sea Shipping Company CJSC, along with the transport fleet, also includes a specialized fleet and shipyards. The transport fleet consists of 51 vessels, including 20 tankers, 13 ferries, 15 universal dry cargo vessels, 2 Ro-Ro vessels, as well as 1 technical vessel and 1 floating workshop. The specialized fleet includes 210 vessels, including 20 cranes, 25 towing and supplying vehicles, 26 passenger, two pipe-laying, six fire-fighting, seven engineering-geological, two diving and 88 auxiliary vessels.
Manych Ship Canal
The Manych Ship Canal is a canal system between the basins of the Sea of Azov, Black Sea, and Caspian Sea. Proposals are being considered to expand the system into a larger Eurasia Canal system. The canal would be a multipurpose water-resources system and an important part of the national transport system serving internal and international Caspian oil traffic, with huge economic potential for the region. A proposed design would enlarge the Manych Ship Canal to a depth of and width of with traffic capacity for more than 75 million tons per year. This proposed Eurasia Canal would allow passage of vessels with a freight-carrying capacity of up to 10,000 tons. Russia's unique geographic location and transportation infrastructure does not correspond economically to the current logistics of Russian and foreign trade.
Caspian lamprey
The Caspian lamprey is an anadromous fish which spends its adult life in the Caspian Sea and migrates up the Volga, Sura, and other rivers to spawn. It was at one time a common fish caught in nets and fish traps in the lower Volga for extracting fish oil and making candles and later for human consumption. In the early 1900s, 15 to 30 million fish were harvested annually from the lower Volga. It is now an uncommon fish because its migratory routes have been disrupted by dams and construction projects and it can no longer reach its spawning grounds.
Caspian lowland desert
The Caspian lowland desert ecoregion (WWF ID:PA1308) is an ecoregion that covers the north and southeast coasts of the Caspian Sea, including the deltas of the Volga River and Ural River in the northern region. While the region gets relatively low amounts of precipitation (less than 200 mm/year), wildlife is supported by the river estuaries and the sea itself. The wetlands are an internationally important area for bird nesting and migratory resting. The ecoregion is in the Palearctic ecozone, and the Deserts and Xeric Shrublands biome. It has an area of .
Garabogazköl
The salinity of the bay is about 35%, compared to the Caspian Sea's 1.2%, and 3–4% for the bulk of the world's oceans. Because of the exceptionally high salinity, comparable to the Dead Sea, it has practically no marine vegetation. Large evaporite, mostly salt deposits accumulated at the south shore were harvested by the local population since the 1920s, but in the 1930s manual collection stopped and the industry shifted northwest to its present center near Garabogaz. From the 1950s on, ground water was pumped from levels lower than the bay itself, yielding more valuable types of salts. In 1963 construction began at Garabogaz on a modern plant for increased production of salines, all the year round and independently of natural evaporation. This plant was completed in 1973.
In March 1980, the barrier to the Caspian was blocked, due to concerns evaporation was accelerating a fall in Caspian Sea level, reducing water levels. The resulting "salt bowl" caused widespread problems of blowing salt, reportedly poisoning the soil and causing health problems for hundreds of kilometers downwind to the east. In 1984 the lake was completely dry. In June 1992, when Caspian Sea levels were rising again, the barrier was breached, allowing Caspian water to again refill Garabogazköl. The remnants of the breached dam can be seen in the satellite photo of the inlet, near the Caspian Sea entrance.
Fedor Ivanovich Soimonov
Soimonov made the first thorough hydrographic survey of the Caspian Sea between 1719 and 1727, building up on the survey previously done by Karl Van Verden during tsar Peter the Great's drive for reform and modernization at the beginning of the 18th century. He led the Caspian Expedition that explored the coasts of the sea. As a result of the survey Soimonov drew a set of maps of the Caspian for the 'Atlas of the Caspian Sea' "(Atlas Kapiiskago Moria)" and wrote the 'Pilot of the Caspian Sea'. Published in 1731 by the Russian Academy of Sciences, these became the first comprehensive report and the first modern maps of the Caspian in history. Between 1730 and 1738 he was employed as a cartographer for the Russian Admiralty Board, which had been established in 1718 by Peter I the Great.
Caspian Sea
The Caspian Summit is a head of state-level meeting of the five littoral states. The fifth Caspian Summit took place on August 12, 2018 in the Kazakh port city of Aktau. The five leaders signed the ‘Convention on the Legal Status of the Caspian Sea’.
Caspian gudgeon
The Caspian gudgeon ("Gobio holurus") is a freshwater fish species in the family Cyprinidae. It is a small fish, less than 10 cm, which is distributed in the drainages of the Western Caspian Sea basin (Kuma, Terek and Sulak river drainages) in Russia and adjacent countries. It is widespread and not threatened, but there is no information about its biology.
Uzboy
At various times in the past one or more branches of the Oxus split off from the Oxus delta and flowed west into the fresh-water Sarykamysh Lake. This was drained south by the Uzboy River about 175 km to near Igdi where it turned and flowed about 290 km west, reaching the Caspian at Krasnovodsk Bay through the Bala-Ishem salt marshes. There was a large waterfall, a place called the Lion’s Jaw and at one point the river disappeared underground for some distance. (Glukhovskoy does not mention it, but GoogleEarth shows a dry river bed that starts about 100 miles west of the Oxus and runs about 400 miles west to join the Uzboy near Igdi.) All geographers, from the ancient Greeks to the early Arabs, reported that the Oxus flowed into the Caspian, although their accounts are vague. From the 10th to the 13th centuries there are no reports of a Caspian mouth. It is thought that a dam was built near the old capital of Konya-Urgench and that this dam was destroyed by the Mongols when they sacked the city in 1220. We again hear of a Caspian mouth from about 1310 to 1575. It is possible that the main current shifted from the Aral to the Caspian, causing the Caspian to rise and the Aral to sink. There may have been a significant population along the Uzboy and farmland in what were later the marshes at the north end of the Oxus delta. It seems that about 1575 the east branch of the Oxus cut through some hills causing the main current to shift to the Aral Sea. Also a dam was built near the old site to retain the remaining water and to deny it to the Turkomans who were in the habit of raiding the Oxus delta. This not only blocked the Uzboy but caused the Sarikamish to slowly dry up.
Caspian Sea
The sea has a surface area of 371,000 km (143,200 sq mi) (not including the detached lagoon of Garabogazköl) and a volume of 78,200 km(18,800 cu mi). It has a salinity of approximately 1.2% (12 g/l), about a third of the salinity of most seawater.
Cheleken Peninsula
The Cheleken Peninsula is about 40 km long and 22 km wide. It borders on the Caspian Sea in the west and with the Türkmenbaşy Gulf (former Krasnovodsk Bay) in the north. The peninsula has a continental dry climate with a precipitation of 150 mm/year. The area is desert and the central part is elevated terrain averaging 100 m elevation, with 25 m high cliffs in the central part of the western shore, while the eastern shore is low and sandy.
List of lakes by depth
The Caspian Sea ranks much further down the list on mean depth, as it has a large continental shelf (significantly larger than the oceanic basin that contains its greatest depths).
Mediterranean Sea
The Mediterranean Sea has an average depth of and the deepest recorded point is in the Calypso Deep in the Ionian Sea. The sea is bordered on the north by Europe, the east by Asia, and in the south by Africa. It is located between latitudes 30° and 46° N and longitudes 6° W and 36° E. Its west-east length, from the Strait of Gibraltar to the Gulf of Iskenderun, on the southwestern coast of Turkey, is approximately 4,000 km (2,500 miles). The sea's average north-south length, from Croatia's southern shore to Libya, is approximately 800 km (500 miles). The Mediterranean Sea, including the Sea of Marmara (connected by the Dardanelles to the Aegean Sea), has a surface area of approximately 2,510,000 square km (970,000 square miles).
Lake Agassiz
Around 13,000 years ago, this lake came to cover much of what are now Manitoba, northwestern Ontario, northern Minnesota, eastern North Dakota, and Saskatchewan. At its greatest extent, it may have covered as much as , larger than any currently existing lake in the world (including the Caspian Sea) and approximately the area of the Black Sea.
Pacific Ocean
Extending approximately from the Bering Sea in the Arctic to the northern extent of the circumpolar Southern Ocean at 60°S (older definitions extend it to Antarctica's Ross Sea), the Pacific reaches its greatest east-west width at about 5°N latitude, where it stretches approximately from Indonesia to the coast of Colombia—halfway around the world, and more than five times the diameter of the Moon. The lowest known point on Earth—the Mariana Trench—lies below sea level. Its average depth is , putting the total water volume at roughly .
Shabran District
Greater part of the district is mountainous. The Caspian Sea is located in 12 km from Shabran city. The district borders upon Quba, Khachmaz, Shamakhi and Siazan Districts. Forests occupy 27000 ha in mountainous territories and plains near the Caspian Sea and they are of great importance with its climatic and natural resources for the district. The Shabran and Davachi Rivers flow through the district's territory, and the Valvalachay and Gilgilchay Rivers flow in northern and southern borders directly to the Caspian Sea. Samur-Davachi lowland has an altitude of −28 m below the world ocean level.
Caspian Sea
The history of the Caspian sea is divided into two parts: a Miocene stage, determined by tectonic events that correlate with the closing of the Tethys Sea, and a Pleistocene stage, that includes glaciation cycles and the creation of the present Volga River. During the first stage, the Tethys Sea had evolved into the Sarmatian Lake, that was created from the modern Black Sea and south Caspian, when the collision of the Arabian peninsula with Western Asia pushed up the Kopet Dag and Caucasus Mountains, setting definitive south and west boundaries to the Caspian basin. This orogeneic movement was continuous throughout the years, while Caspian was regularly disconnecting from the Black Sea. In the late Pontian, a mountain arch rose across the south basin and divided it in the Khachmaz and Lankaran Lakes (or early Balaxani). The period of restriction to the south basin was reversed during the Akchagyglian, when the lake expanded to more than three times its present area and established the first of a series of contacts with the Black Sea and with Lake Aral. A recession of the lake Akchagyl completed stage one.
Caspian turtle
"Mauremys caspica" is a tan to blackish, medium-sized, semiaquatic turtle, which may attain a carapace length of . Its low, oval carapace has a slight medial keel (better developed in juveniles) and a smooth, unserrated marginal border, which is slightly upturned and tapered above the tail. A pair of low lateral keels are present on the pleural scutes of hatchlings, but these become lower with age and disappear completely in adults. The carapace is tan to olive or black with yellow to cream-colored reticulations patterning the scutes, and some individuals have yellow vertebral stripes. These light lines fade with age, but the pleural seam borders become darker. The well-developed plastron is notched posteriorly. The plastral formulae are given in the subspecies descriptions under Geographic Variation. The plastron is either yellow with variable reddish to dark-brown blotches, or dark brown or black with a yellow blotch along the lateral scute borders. The bridge is either yellow with dark seam borders and dark spots on the corresponding marginals, or almost totally black with a few small yellow marks. The head is not enlarged, and is olive to dark brown with yellow or pale cream-colored stripes. Some stripes extend anteriorly from the neck onto the head. One of these on each side passes above the eye and onto the snout where it meets the stripe from the other side. Several others extend across the tympanum to contact the posterior rim of the orbit, and two additional stripes continue across the snout and pass ventral to the orbit. The neck, limbs, and tail are tan gray to olive or black with yellow, cream, or gray stripes or reticulations.
"M. caspica" has 52 chromosomes; (Killebrew, 1977a; Bickham and Carr, 1983).
Females are generally larger than males, have flat plastra and shorter tails with the vent under the rim of the carapace. The smaller males have concave plastra and longer, thicker tails with the vent beyond the rim of the carapace.
Caspian Sea
In June 2007, in order to boost his oil-rich country's access to markets, Kazakhstan's President Nursultan Nazarbayev proposed a link between the Caspian Sea and the Black Sea. It is hoped that the "Eurasia Canal" (Manych Ship Canal) would transform landlocked Kazakhstan and other Central Asian countries into maritime states, enabling them to significantly increase trade volume. Although the canal would traverse Russian territory, it would benefit Kazakhstan through its Caspian Sea ports. The most likely route for the canal, the officials at the Committee on Water Resources at Kazakhstan's Agriculture Ministry say, would follow the Kuma–Manych Depression, where currently a chain of rivers and lakes is already connected by an irrigation canal (Kuma–Manych Canal). Upgrading the Volga–Don Canal would be another option.
Neogobius pallasi
Neogobius pallasi, the Caspian sand goby or the Caspian monkey goby, is a species of fish native to fresh and brackish waters of the Caspian Sea basin including the Volga drainage up to the vicinity of Moscow. It has been introduced into the Aral basin. This species of goby can reach a length of SL. It is also important to local commercial fisheries.
Ocean
The total mass of the hydrosphere is about 1.4 quintillion metric tons ( long tons or short tons), which is about 0.023% of Earth's total mass. Less than 3% is freshwater; the rest is saltwater, almost all of which is in the ocean. The area of the World Ocean is about 361.9 million square kilometers (139.7 million square miles), which covers about 70.9% of Earth's surface, and its volume is approximately 1.335 billion cubic kilometers (320.3 million cubic miles). This can be thought of as a cube of water with an edge length of . Its average depth is about , and its maximum depth is at the Mariana Trench. Nearly half of the world's marine waters are over deep. The vast expanses of deep ocean (anything below ) cover about 66% of Earth's surface. This does not include seas not connected to the World Ocean, such as the Caspian Sea.
Europe
The prevalent definition of Europe as a geographical term has been in use since the mid-19th century.
Europe is taken to be bounded by large bodies of water to the north, west and south; Europe's limits to the far east are usually taken to be the Urals, the Ural River, and the Caspian Sea; to the southeast, including the Caucasus Mountains, the Black Sea and the waterways connecting the Black Sea to the Mediterranean Sea.
Endorheic basin
Endorheic regions, in contrast to exorheic regions which flow to the ocean in geologically defined patterns, are closed hydrologic systems. Their surface waters drain to inland terminal locations where the water evaporates or seeps into the ground, having no access to discharge into the sea. Endorheic water bodies include some of the largest lakes in the world, such as the Caspian Sea, the world's largest saline inland sea.
Dead Kultuk
It had a distinct coastline in former times, but since the 1990s, with higher Caspian Sea levels, the water penetrates inland through the neck of the bay producing waterlogged marshes. Located at the mainland end of the bay, the Kaydak Inlet cuts deep into the coast extending east and then southwards. Nowadays both the bay and the inlet are filled with Caspian Sea water. Currently there are oil fields in the area.
Owing to its special colour the Dead Kultuk is the bay which appears in early maps of the Caspian Sea as 'Blue Sea' ( in maps in that language). The area was mapped by Fedor Ivanovich Soimonov during the Caspian Expedition, which surveyed the Caspian Sea from 1719 to 1727, but was not accurately described until G. S. Karelin did so in 1832.
Caspian Depression
The Caspian Depression (, Caspian Lowland) or Pricaspian/Peri-Caspian Depression/Lowland is a low-lying flatland region encompassing the northern part of the Caspian Sea, the largest enclosed body of water on Earth. It is the larger northern part of the wider Aral-Caspian Depression around the Aral and Caspian seas.
Caspian Depression
The level of the Caspian sea is below sea level, however several places in the depression are even lower, and among them Karagiye near Aktau is the lowest at .
Caspian Sea
Iran has an enormous energy potential based on several specific factors: 137.5 billion bbl of crude oil reserves, the second largest in the world, Producing around 4 million bbl/day. Additionally, Iran has an estimated 988.4 trillion cubic feet of natural gas, around 16 percent of total world reserves, which makes it to play a key role in the global energy security equation.
Caspian tadpole goby
The Caspian tadpole goby ("Benthophilus macrocephalus") is a species of goby which is widespread in the basin of the Caspian Sea, specifically in the near-estuary zone of the rivers and in small bays. It is a common species in the Volga River delta near Astrakhan, occurred in the deltas of rivers Terek, Ural, Samur. During the warmer months, this species prefers to live at depths of from , moving in the colder months to depths of . It can reach a length of TL.
Baku–Tbilisi–Ceyhan pipeline
The Caspian Sea lies above one of the world's largest collections of oil and gas fields. As the sea is landlocked, transporting oil to Western markets is complicated. During Soviet times, all transportation routes from the Caspian region were through Russia. The collapse of the Soviet Union inspired a search for new routes. Russia first insisted that the new pipeline should pass through its territory, then declined to participate.
Caspian Sea
The Convention grants jurisdiction over 15 miles of territorial waters to each neighboring country, plus additional 10 miles of exclusive fishing rights on the surface, while the rest is international waters. The seabed, on the other hand, remains undefined, subject to bilateral agreements between countries. Thus, the Caspian Sea is legally neither fully a sea nor a lake.
Caspian Flotilla
The Caspian Flotilla () is the flotilla of the Russian Navy in the Caspian Sea.
Caspian expeditions of the Rus'
The Rus' launched the first large-scale raid in 913. A fleet of 500 ships reached the southern shores of the Caspian Sea through the country of the Khazars. In order to secure a peaceful passage through the land of the Khazars, the Rus' promised the Khazars half of their spoils. They sailed down the Dnieper River into the Black Sea, then into the Sea of Azov, then up the Don River past the Khazar city of Sarkel, and then by a portage reached the Volga, which led them into the Caspian Sea.
Transport in Azerbaijan
Baku International Marine Trade Port is the largest port on the Caspian Sea. Its ferry terminal underwent a major reconstruction supported by a US$16.2 million loan from EBRD. It is now able to handle 30 million tons of freight a year. The Caspian Sea provides vital transport links with other countries and is being used to ship oil until various pipeline projects are completed.
Caspiosoma caspium
Caspiosoma caspium is a species of Ponto-Caspian goby native to the deltas of rivers inflows to the north-western Black Sea: Dnieper up to Berislav, also in the Dnieper-Bug Estuary and Berezan Estuary, Danube, Dniester with the estuary, Cuciurgan Reservoir. Found in the delta of the Don River, Volga, central and northern parts of the Caspian Sea and rivers flowing into the Sea of Azov. It can be found at depths of from . This species can reach a length of TL. It is currently the only known member of its genus.
Exploration of Saturn
In July 2006, "Cassini" saw the first proof of hydrocarbon lakes near Titan's north pole, which was confirmed in January 2007. In March 2007, additional images near Titan's north pole discovered hydrocarbon "seas", the largest of which is almost the size of the Caspian Sea.
Caspian Sea
The collapse of the Soviet Union and subsequent opening of the region has led to an intense investment and development scramble by international oil companies. In 1998, Dick Cheney commented that "I can't think of a time when we've had a region emerge as suddenly to become as strategically significant as the Caspian."
Incat
Most offshore oil rigs are exposed to rough open seas with crew transfers by helicopter and freight needs served by platform supply vessels. However Azerbaijan's offshore oil rigs are in the calmer waters of the Caspian Sea, the world's largest lake, so crew transfers can be comfortably and more economically undertaken by water. Several fast catamarans have been built to transfer both crews and cargo for this market including Incat Hull 074 "Muslim Magomayev" delivered in 2015. The size of catamarans that can be built for this niche market is restricted by the 16.5 metre width of locks on the Volga-Don Canal that connects the Caspian Sea with the Black Sea and the Mediterranean.
Caspian Sea Monster
The KM remained the largest aircraft in the world during the entirety of its existence, and was not surpassed until the Antonov An-225 in 1988, eight years after its destruction.
Caspian Sea
According to a treaty signed between Iran and the Soviet Union, the Caspian Sea is technically a lake and was divided into two sectors (Iranian and Soviet), but the resources (then mainly fish) were commonly shared. The line between the two sectors was considered an international border in a common lake, like Lake Albert. The Soviet sector was sub-divided into the four littoral republics' administrative sectors.
Caspian Sea
The Vladimir Filanovsky field in the Russian section of the body of water was discovered for its wealth of oil in 2005. It is reportedly the largest discovery of oil in 25 years. It was announced in October 2016 that Lukoil would start production in this region.
Caspian Sea
All five Caspian littoral states maintain naval forces on the sea.
List of lakes
There are around hundreds of lakes, deep below the ice of Antarctica.
The Caspian Sea, located in western Asia on the eastern edges of Europe, is the largest lake on the planet. History records that it is called a sea because the Romans found it salty, especially in the southern reaches, and the name stuck. Oil and natural gas production platforms are replete along the edges of the sea. In addition, large quantities of sturgeon live in its waters, and the caviar produced from their eggs is a valuable commodity. Fresh water flows into the sea via the Volga River and Ural River in the north; however, the sea remains somewhat salty, central and south. The measured surface area is 371,000 sq km (143,244 sq mi), and he maximum depth is at 1025 m (3,363 ft). Additional details and map.
Caspian tiger
Its former distribution can be approximated by examining the distribution of ungulates in the region. Wild boar was the numerically dominant ungulate occurring in forested habitats, along watercourses, in reed beds and in thickets of the Caspian and Aral Seas. Where watercourses penetrated deep into desert areas, suitable wild pig and tiger habitat was often linear, only a few kilometers wide at most. Red and roe deer occurred in forests around the Black Sea to the western side and around the southern side of the Caspian Sea in a narrow belt of forest cover. Roe deer occurred in forested areas south of Lake Balkash. Bactrian deer occurred in the narrow belt of forest habitat on the southern border of the Aral Sea, and southward along the Syr-Darya and Amu-Darya rivers.
Caspian seal
Caspian seals can be found not only along the shorelines, but also on the many rocky islands and floating blocks of ice that dot the Caspian Sea. As the ice melts in the warmer season, they can be found on the mouths of the Volga and Ural Rivers, as well as the southern latitudes of the Caspian where cooler waters can be found due to greater depth.
Caspian Sea
, negotiations related to the demarcation of the Caspian Sea had been going on for nearly a decade among the states bordering the Caspian – Azerbaijan, Russia, Kazakhstan, Turkmenistan, and Iran. The status of the Caspian Sea is the key problem. Access to mineral resources (oil and natural gas), access for fishing, and access to international waters (through Russia's Volga river and the canals connecting it to the Black Sea and Baltic Sea) all depend upon the outcomes of negotiations. Access to the Volga River is particularly important for the landlocked states of Azerbaijan, Kazakhstan, and Turkmenistan. This concerns Russia, because the potential traffic would use its inland waterways. If a body of water is labelled as a sea, then there would be some precedents and international treaties obliging the granting of access permits to foreign vessels. If a body of water is labelled merely as a lake, then there are no such obligations. Environmental issues are also somewhat connected to the status and borders issue.
Qazvin Province
Archeological findings in the Qazvin plain reveal the existence of urban agricultural settlements as far back as 7000 BC. The name “Qazvin” or “Kasbin” is derived from Cas, an ancient tribe that lived south of the Caspian Sea millennia ago. The Caspian Sea itself in fact derives its name from the same origin. Qazvin geographically connects Tehran, Isfahan, and the Persian Gulf to the Caspian seacoast and Asia Minor, hence its strategic location throughout the ages.
Kura (Caspian Sea)
The Kura (; ; , "Mt’k’vari"; , "Kur"; , "Cyrus"; , "Kuruš" ) is an east-flowing river south of the Greater Caucasus Mountains which drains the southern slopes of the Greater Caucasus east into the Caspian Sea. It also drains the north side of the Lesser Caucasus while its main tributary, the Aras drains the south side of those mountains. Starting in northeastern Turkey, it flows through Turkey to Georgia, then to Azerbaijan, where it receives the Aras as a right tributary, and enters the Caspian Sea at Neftçala. The total length of the river is .
Lazarev Sea
The Lazarev Sea (, "More Lazareva") is a proposed name for a marginal sea of the Southern Ocean. It would be bordered by two proposals from a 2002 International Hydrographic Organization (IHO) draft, a King Haakon VII Sea to the west and a Riiser-Larsen Sea to the east, or between the Prime Meridian of 0° and 14°E. It would stretch over an area of .
Landlocked country
Several countries have coastlines on landlocked seas, such as the Caspian and the Dead. Since these seas are in effect lakes without access to wider seaborne trade, countries such as Kazakhstan are still considered landlocked. Although the Caspian Sea is connected to the Black Sea via the man-made Volga–Don Canal, large oceangoing ships are unable to traverse it.
Convention on the legal status of the Caspian Sea
The Convention on the legal status of the Caspian Sea is a treaty signed at the Fifth Caspian Summit in Aktau, Kazakhstan, on 12 August 2018 by the presidents of Russia, Kazakhstan, Azerbaijan, Iran and Turkmenistan.
Buzachi Peninsula
This peninsula is a vast low-lying depression with salt marshes and salt lakes. Parts of it lie between 20 and 30 m below sea level, lower than the Caspian. The area provides an important habitat for thousands of Goitered Gazelles.
The area was mapped by Fedor Ivanovich Soimonov during the Caspian Expedition, which surveyed the Caspian Sea from 1719 to 1727.
2002 Tbilisi earthquake
The Greater Caucasus occupy the region between the Black Sea and the Caspian Sea and includes Aremenia, Azerbaijan, Georgia, and the Russian Caucasus. This mountainous region has been forced northward and upward as a result of the Arabian Plate colliding with the Eurasian Plate.
Caspian Sea
The level of the Caspian has fallen and risen, often rapidly, many times over the centuries. Some Russian historians claim that a medieval rising of the Caspian, perhaps caused by the Amu Darya changing its inflow to the Caspian from the 13th century to the 16th century, caused the coastal towns of Khazaria, such as Atil, to flood. In 2004, the water level was below sea level.
Natural environment
An ocean is a major body of saline water, and a component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 362 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt. Though generally recognized as several 'separate' oceans, these waters comprise one global, interconnected body of salt water often referred to as the World Ocean or global ocean. The deep seabeds are more than half the Earth's surface, and are among the least-modified natural environments. The major oceanic divisions are defined in part by the continents, various archipelagos, and other criteria: these divisions are (in descending order of size) the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean and the Arctic Ocean.
Absheron Peninsula
It extends eastward into the Caspian Sea, and reaches a maximum width of . Though technically the easternmost extension of the Caucasus Mountains, the landscape is only mildly hilly, a gently undulating plain that ends in a long spit of sand dunes known as Shah Dili, and now declared the Absheron National Park. In this part the peninsula is dissected by ravines and characterized by frequent salt lakes.
Sea of Azov
The Maeotian marshes around the mouth of the Tanais River (the present-day Don) were famous in antiquity, as they served as an important check on the migration of nomadic people from the Eurasian steppelands. The Maeotians themselves lived by fishing and farming, but were avid warriors able to defend themselves against invaders. Misled by its strong currents, ancient geographers had only a vague idea of the extent of the sea, whose fresh water caused them to typically label it a "swamp" or a "lake". Herodotus (5th-century BC) judged it as large as the Black Sea, while the Pseudo-Scylax (4th-century BC) thought it about half as large. It was long thought to provide direct communication with the Arctic Ocean. Polybius (2nd-century BC) confidently expected that the strait to the Sea of Azov would close in the near future, presumably due to falling sea-levels. In the 1st-century, Strabo reckoned the distance from the Cimmerian Bosporus (the Strait of Kerch) to the mouth of the Tanais at , a roughly correct figure,
but did not know that its width continuously narrows.
Caspian Sea
UNECE recognizes several rivers that cross international borders which flow into the Caspian Sea.
These are:
Although the Caspian Sea is endorheic, its main tributary, the Volga, is connected by important shipping canals with the Don River (and thus the Black Sea) and with the Baltic Sea, with branch canals to Northern Dvina and to the White Sea.
History of Central Asia
The economic performance of the region since independence has been mixed. It contains some of the largest reserves of natural resources in the world, but there are important difficulties in transporting them. Since it lies farther from the ocean than anywhere else in the world, and its southern borders lay closed for decades, the main trade routes and pipelines run through Russia. As a result, Russia still exerts more influence over the region than in any other former Soviet republics. Nevertheless, the rising energy importance of the Caspian Sea entails a great involvement in the region by the US. The former Soviet republics of the Caucasus now have their own US Special Envoy and inter-agency working groups. Former US Secretary of Energy Bill Richardson had claimed that "the Caspian region will hopefully save us [the US] from total dependence on Middle East oil".
Geography of the Soviet Union
The Soviet Union's four million inland bodies of water chiefly resulted from extensive glaciation. Most prominently they included the Caspian Sea, the world's largest inland sea, and Lake Baikal, the world's deepest and most capacious freshwater lake. Lake Baikal alone held 85 percent of the freshwater resources of the lakes in the Soviet Union and 20 percent of the world's total. Other water resources included swampland - a sizable portion of territory (10 percent) - and glaciers in the northern areas.
2001 world oil market chronology
July 24 An Iranian warship in the Caspian Sea threatens a BP oil exploration ship off the coast of Azerbaijan. This prompts BP to suspend exploration in the area. The two vessels were in the Araz-Alov-Sharg field southeast of Baku. Iran claims the field is in Iranian waters. Caspian Sea region countries have been unable to agree on a division of the Sea. (NYT)
Caspian Sea
The Caspian Sea is the world's largest inland body of water, variously classed as the world's largest lake or a full-fledged sea. It is an endorheic basin (a basin without outflows) located between Europe and Asia, to the east of the Caucasus Mountains and to the west of the broad steppe of Central Asia. It is bounded by Kazakhstan to the northeast, Russia to the northwest, Azerbaijan to the west, Iran to the south, and Turkmenistan to the southeast. The Caspian Sea is home to a wide range of species and may be best known for its caviar and oil industries. Pollution from the oil industry and dams on rivers draining into the Caspian Sea have had negative effects on the organisms living in the sea.
Astacus pachypus
Astacus pachypus, the Caspian crayfish is a species of crayfish found in the Caspian Sea, the Don river, and parts of the Black Sea and Sea of Azov, where it lives in salinities of up to 14‰. It is listed as Data Deficient in the IUCN Red List.
Asia
Asia is the largest continent on Earth. It covers 9% of the Earth's total surface area (or 30% of its land area), and has the largest coastline, at . Asia is generally defined as comprising the eastern four-fifths of Eurasia. It is located to the east of the Suez Canal and the Ural Mountains, and south of the Caucasus Mountains (or the Kuma–Manych Depression) and the Caspian and Black Seas. It is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean and on the north by the Arctic Ocean. Asia is subdivided into 48 countries, three of them (Russia, Kazakhstan and Turkey) having part of their land in Europe.
Caspian Sea
The Caspian area is rich in energy resources. Oil wells were being dug in the region as early as the 10th century to reach oil "for use in everyday life, both for medicinal purposes and for heating and lighting in homes". By the 16th century, Europeans were aware of the rich oil and gas deposits around the area. English traders Thomas Bannister and Jeffrey Duckett described the area around Baku as "a strange thing to behold, for there issueth out of the ground a marvelous quantity of oil, which serveth all the country to burn in their houses. This oil is black and is called nefte. There is also by the town of Baku, another kind of oil which is white and very precious [i.e., petroleum]."
Caspian Sea
Six sturgeon species, the Russian, bastard, Persian, sterlet, starry and beluga, are native to the Caspian Sea. The last of these is arguably the largest freshwater fish in the world. The sturgeon yield roe (eggs) that are processed into caviar. Overfishing has depleted a number of the historic fisheries. In recent years, overfishing has threatened the sturgeon population to the point that environmentalists advocate banning sturgeon fishing completely until the population recovers. The high price of sturgeon caviar, however, allows fishermen to afford bribes to ensure the authorities look the other way, making regulations in many locations ineffective. Caviar harvesting further endangers the fish stocks, since it targets reproductive females.
Trans-Caspian railway
Construction began in 1879 of a narrow-gauge railway to Gyzylarbat in connection with the Russian conquest of Transcaspia under General Mikhail Skobelev. It was rapidly altered to the standard Russian gauge of five feet, and construction through to Ashkabad and Merv (modern Mary) was completed under General Michael Nicolaivitch Annenkoff in 1886. Originally the line began from on the Caspian Sea, but the terminus was later shifted north to the harbour at Krasnovodsk. The Railway reached Samarkand via Bukhara in 1888, where it halted for ten years until extended to Tashkent and Andijan in 1898. The permanent bridge over the Oxus (Amu-Darya) was not completed until 1901, and until then trains ran over a rickety wooden construction that was often damaged by floods. As early as 1905, there was a train ferry across the Caspian Sea from Krasnovodsk to Baku in Azerbaijan. The Tashkent Railway connecting the Transcaspian Military Railway with the network of other Russian and European railways was completed in 1906.
Lake Manych-Gudilo
A global sea level rise of roughly would cause the ocean surface to be higher than the highest point of an area between the ocean and the Caspian, forming a narrow channel straddling the lake in the area between the Sea of Azov and the Caspian Sea, potentially placing the Caspian Depression area under water.
List of lakes by depth
Geologically, the Caspian Sea, like the Black and Mediterranean seas, is a remnant of the ancient Tethys Ocean. The deepest area is oceanic rather than continental crust. However, it is generally regarded by geographers as a large endorheic salt lake.
Caspian Sea
The Caspian Sea Shipping Company of Azerbaijan, which acts as a liaison in the Transport Corridor Europe-Caucasus-Asia (TRACECA), simultaneously with the transportation of cargo and passengers in the Trans-Caspian direction, also performs work to fully ensure the processes of oil and gas production at sea. This activity has a rich history. The development of the shipping industry in Azerbaijan is closely connected with the formation and progress of the oil industry. In the 19th century, the sharp increase in oil production in Baku gave a huge impetus to the development of shipping in the Caspian Sea, and as a result, there was a need to create fundamentally new floating facilities for the transportation of oil and oil products.
Caucasus
The Caucasus or Caucasia is a mountain range and also a regional term used to describe an area situated between the Black Sea and the Caspian Sea and occupied by Russia, Georgia, Azerbaijan, and Armenia. It is home to the Caucasus Mountains including the Greater Caucasus mountain range, which has historically been considered a natural barrier between Eastern Europe and Western Asia, but is today accepted by the majority of scholars as being part of Asia.
North Caucasus Operation (1920)
In late April, the Caucasus Front advanced to the border of Georgia and Azerbaijan from the Black Sea to the Caspian, preceding the invasion of Azerbaijan. The front had captured an area of 296,000 square kilometers with a population of 6.91 million during the operation.
Caspian Sea
Russia, Kazakhstan, and Azerbaijan have bilateral agreements with each other based on median lines. Because of their use by the three nations, median lines seem to be the most likely method of delineating territory in future agreements. However, Iran insists on a single, multilateral agreement between the five nations (as this is the only way for it to achieve a one-fifth share of the sea). Azerbaijan is at odds with Iran over some oil fields that both states claim. Occasionally, Iranian patrol boats have fired at vessels sent by Azerbaijan for exploration into the disputed region. There are similar tensions between Azerbaijan and Turkmenistan (the latter claims that the former has pumped more oil than agreed from a field, recognized by both parties as shared).
Salmo ciscaucasicus
Salmo ciscaucasicus or the Caspian salmon is a salmonid fish endemic to the Caspian Sea and inflowing rivers . It was described in 1967 originally as a subspecies of "Salmo trutta". "S. ciscaucasicus" lives on the western shore of the lake from northern Azerbaijan to the Ural River, while the main breeding river is Terek. It lives at depths down to 50 metres. Males can reach a maximum standard length of 130 centimetres.
Caspian Sea
Today, oil and gas platforms abound along the edges of the sea.Countries on the Caspian region, such as Azerbaijan, Kazakhstan and Turkmenistan, illustrate the examples of natural-resource-based economies. A resource-based economy is defined as one where the natural resources, gas and oil, compose more that 10 percent of the particular country's GDP and 40 percent of exports' All the Caspian region economies are highly dependent on the mineral wealth. The world energy markets got influenced by Azerbaijan and Kazakhstan, as they became strategically crucial in this sphere, thus attracting the largest share of FDI (foreign direct investment).
Borders of the oceans
Geologically, an ocean is an area of oceanic crust covered by water. Oceanic crust is the thin layer of solidified volcanic basalt that covers the Earth's mantle. Continental crust is thicker but less dense. From this perspective, the Earth has three oceans: the World Ocean, the Caspian Sea, and the Black Sea. The latter two were formed by the collision of Cimmeria with Laurasia. The Mediterranean Sea is at times a discrete ocean, because tectonic plate movement has repeatedly broken its connection to the World Ocean through the Strait of Gibraltar. The Black Sea is connected to the Mediterranean through the Bosporus, but the Bosporus is a natural canal cut through continental rock some 7,000 years ago, rather than a piece of oceanic sea floor like the Strait of Gibraltar.
Caspian horse
The Caspian is a small horse breed native to Northern Iran. Although its original height probably ranged between it is termed a horse rather than a pony because, size apart, it has much in common with horses in terms of conformation, gaits and character. It is believed to be one of the oldest horse or pony breeds in the world, descended from small Mesopotamian equines that, in competition with larger animals, had faded from attention by the 7th century AD.
Caspian seal
The Caspian seal ("Pusa caspica") is one of the smallest members of the earless seal family and unique in that it is found exclusively in the brackish Caspian Sea. They are found not only along the shorelines, but also on the many rocky islands and floating blocks of ice that dot the Caspian Sea. In winter, and cooler parts of the spring and autumn season, these marine mammals populate the Northern Caspian. As the ice melts in the warmer season, they can be found on the mouths of the Volga and Ural Rivers, as well as the southern latitudes of the Caspian where cooler waters can be found due to greater depth.
List of lakes of Azerbaijan
The list includes only natural lakes. Artificial lakes such as reservoirs are excluded from this list. The Caspian Sea, which is the largest lake on Earth by both area and volume and which borders Azerbaijan on the east, is also excluded from this list.
Framework Convention for the Protection of the Marine Environment of the Caspian Sea
Framework Convention for the Protection of the Marine Environment of the Caspian Sea is a regional convention signed by the official representatives of the five littoral Caspian states: Azerbaijan, Iran, Kazakhstan, Russian Federation and Turkmenistan in Tehran (Iran) on 4 November 2003. The Framework Convention, also called Tehran Convention, entered into force on 12 August 2006.