En name | Azov |
---|---|
Ru name | Азов |
Federal subject | Rostov Oblast |
Adm ctr of | Azov Rayon |
Area km2 | 66.7 |
Pop 2002census | 83139 |
Pop 2002census rank | 198 |
Pop 2002census ref | |
Established date | 1067 |
Postal codes | 346780 |
Dialing codes | 86342 |
Date | May 2010 }} |
In the 10th century, the area passed under control of the Slavic princedom of Tmutarakan. The Kypchaks, seizing the area in 1067, renamed it Azaq (i.e., lowlands), from which appellation the modern name is derived. The Golden Horde claimed most of the coast in the 13th and 14th centuries, but the Venetian and Genoese merchants were granted permission to settle on the site of modern-day Azov and founded there a colony which they called Tana (or La Tana).
In 1471 the Ottoman Empire gained control of the area and built the strong fortress of Azak (Azov).
The fort blocked the Don Cossacks from raiding and trading into the Black Sea. The Cossacks had attacked Azov in 1574, 1593, 1620 and 1626. In April 1637 3,000 Don and 4,000 Zaporozhian Cossacks besieged Azov (the Turks had 4000 soldiers and 200 cannon). The fort fell on 21 June and the Cossacks sent a request to the Czar for re-enforcements and support. A commission recommended against this because of the danger of war with Turkey and poor state of the fortifications. In June 1641 Hussein Deli, Pasha of Silistria invested the fort with 70-80,000 men. In September they had to withdraw because of disease and provisioning shortfalls. A second Russian commission reported that the siege had left very little of the walls. In March 1642, Sultan Ibrahim issued an ultimatum and Czar Mikhail ordered the Cossacks to evacuate. The Turks reoccupied Azov in September 1642.
The town, however, had yet to pass through many vicissitudes. During the Azov campaigns of (1696), Peter the Great, who desired naval access to the Mediterranean Sea, managed to recover the fortress. Azov achieved town status in 1708, but the disastrous Pruth Campaign constrained him to hand it back to the Turks in 1711. A humorous description of the events is featured in Voltaire's ''Candide''. During the Great Russo-Turkish War it was taken by the army under Count Rumyantsev and finally ceded to Russia under the terms of Treaty of Kuchuk-Kainarji (1774). For seven years Azov was a capital of a separate government but, with the growth of neighboring Rostov-on-the-Don, gradually declined in importance. It was occupied by Germany between July 1942-February 1943 during World War II.
Category:Cities and towns in Rostov Oblast Category:Crimean Khanate Category:Don Cossacks Category:History of the Ottoman Empire Category:Port cities and towns in Russia Category:Ancient Greek cities Category:Ancient Greek sites in Russia Category:Coastal fortifications
ar:آزوف az:Azov be:Горад Азоў bs:Azov bg:Азов ca:Azov cs:Azov de:Asow et:Azov es:Azov eo:Azov fa:آزوف fr:Azov gl:Azov - Азов ko:아조프 hy:Ազով hr:Azov io:Azov id:Azov os:Азов it:Azov he:אזוב (עיר) la:Asovia lv:Azova lt:Azovas nl:Azov ja:アゾフ no:Azov nn:Azov pl:Azow pt:Azov ro:Azov ru:Азов sr:Азов fi:Azov sv:Azov tl:Azov tr:Azak uk:Азов (місто) war:Azov zh:亞速This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
ocean name | Sea of Azov |
---|---|
image ocean | Azow Sea Sunset.JPG |
caption ocean | Sea of Azov at Novaya Yalta, Donetsk Oblast |
image bathymetry | Black Sea map.png |
coords | |
inflow | Don and Kuban |
length | |
width | |
area | |
depth | |
max-depth | |
volume | 290 km3 |
reference | }} |
The sea is largely affected by the inflow of numerous rivers, which bring sand, silt, and shells, forming numerous bays, limans, and narrow sandbanks called spits. Because of these deposits, the sea bottom is relatively smooth and flat with the depth gradually increasing toward the sea centre. Also, due to the river inflow, water in the sea has low salinity and high content of biological matter, such as green algae that affects the water colour. Abundant plankton results in unusually high fish productivity. The sea shores and spits are low; they are rich in vegetation and bird colonies.
The sea is considered an internal sea of Russia and Ukraine, and its use is governed by an agreement between these countries ratified in 2003.
The sea is long and wide and has an area of ; it is the smallest sea within the countries of the former Soviet Union. The main rivers flowing into it are the Don and Kuban; they ensure that the waters of the sea have comparatively low salinity and are almost fresh in places, and also bring in huge volumes of silt and sand. Accumulation of sand and shells results in a smooth and low coastline, as well as in numerous spits and sandbanks.
The Sea of Azov is the shallowest sea in the world with an average depth of and maximum depth of ; in the bays, where silt has built up, the average depth is about . The sea bottom is also relatively flat with the depth gradually increasing from the coast to the centre. The Sea of Azov is an internal sea with the passage to the Atlantic Ocean going through the Black, Marmara, Aegean and Mediterranean seas. It is connected to the Black Sea with the Strait of Kerch, which has a smallest width of and a maximum depth of . The narrowness of the Kerch Strait limits the water exchange with the Black Sea. As a result, the salinity of the Sea of Azov is low; in the open sea it is 10–12 psu, that is about one third of the salinity the oceans, and is even lower (2–7 psu) in the Taganrog Bay. The long-term variations of salinity are within a few psu and are mostly caused by the changes in air humidity and precipitation.
Whereas more than 20 rivers flow into the sea, mostly from the north, two of them, the Don and Kuban rivers, account for more than 90% of water income. The contribution of the Don is about twice as big as that of the Kuban. The delta of Kuban is located southeast, to the right from the Kerch Strait. It is over 100 km long and covers vast flooded area with numerous channels. (Because of the spread, the delta has low contrast in satellite images and is hardly visible in the map.) Don flows from the north into the large Taganrog Bay. The depth there varies between 2 and 9 metres, and the maximum depth is observed in the middle of the sea.
Typical values of the yearly inflow and outflow of water to the sea, averaged over the period from 1923 to 1985, are as follows: river inflow 38.6 km3, precipitation 15.5 km3, evaporation 34.6 km3, inflow from the Black Sea 36–38 km3, outflow 53–55 km3. Thus, about 17 km3 of fresh water is outflowing from the Azov Sea to the Black Sea. The depth of Azov Sea is decreasing, mostly due to the river-induced deposits. Whereas the past hydrological expeditions recorded depths up to of 16 metres, more recent ones could not find places deeper than 13.5–14 metres. This might explain the variation in the maximum depths among different sources. The water level fluctuates by some 20 cm over the year due to the snow melts in spring.
The Taman Peninsula has about 25 mud volcanoes, most of which are active. Their eruptions are usually quiet, spilling out mud, and such gases as methane, carbon dioxide and hydrogen sulfide, but is sometimes violent and resembles regular volcanic eruptions. Some of those volcanoes are under water, near the shores of the peninsula. A major eruption on 6 September 1799, near stanitsa Golubitskaya, lasted about 2 hours and formed a mud island 100 metres in diameter and 2 metres in height; the island was then washed away by the sea. Similar eruptions occurred in 1862, 1906, 1924, 1950 and 1952.
Many rivers flowing into the Sea of Azov form bays, lagoons and limans. The sand, silt and shells they bring are deposited in the areas of reduced flow, that is the sides of the bays, forming narrow sandbanks called spits. Typical maximum depth in the bays and limans is a few metres. Because of shallow waters and abundant rivers, the spits are remarkably long and numerous in the sea – the Arabatsk Spit stretches over and is one of the world's longest spits; three other spits, Fedotov Spit, Achuevsk Spit and Obitochna Spit, are longer than 30 km. Most spits stretch from north to south and their shape can significantly change over just several years.
A remarkable feature of the Sea of Azov is the large complex of shallow lagoons called Sivash. Their typical depth is only 0.5–1 metres with a maximum of 3 metres. They cover an area of in the northeastern Crimea which is separated from the sea by the Arabatsk Spit. North to the spit lies the city of Henichesk (population 22,500) and south to it is the Bay of Arabat. Sivash accepts up to 1.5 km3 of Azov water per year. Because of the large and shallow geometry, the water rapidly evaporates there, resulting in the high salinity of 170 on the practical salinity scale (i.e. 170 psu). Therefore, Sivash has long had strong salt-producing industry.
North to the Arabat Spit there is the Molochna Liman with the associated Fedotov Spit (45 km long) which are formed by the Molochna River. Farther north, between the Fedotov Spit and Obytochna Spit (30 km long), lies Obytochny Bay. More to the north, between Obytochna Spit and Berdyansk Spit (23 km long), there is Berdyansk Bay with two cities Berdyansk (population 112,000) and Primorsk (population 13,900). Further north lies Belosaraysk Bay with its Belosaraysk Spit which are formed by the river Kalmius. The major city in the area is Mariupol (population 491,600). Then, approaching the Taganrog Bay and very close to Taganrog, there are the Mius Liman and Krivaya Spit formed by the Mius River.
With the area of about , the Taganrog Bay is the largest bay of the Sea of Azov. It is located in its north-western part and is bound by the Belosaraysk and Dolgaya spits. The Don flows into it from the north-east. On its shores stand the two principal cities of the Sea of Azov, Taganrog (population 257,600) and Azov (population 83,200). South-east of the bay is Yeysk Liman. It lies entirely on the continent, entering the Taganrog Bay through the Yeysk and Glafirovsk Spits, and is the mouth of Yeya River. Yeysk Spit is part of Yeysk city which has a population of 87,500. It extends in the prominent Yeysk peninsula which is tipped on the north-west by the Dolgaya Spit. South of it, also enclosed by the continent, lies Beisug Liman, which is restricted by the Yasensk Spit and is fed by the Beysug River. South-west to the liman, the 31 km long Achuevsk Spit runs along the coastline. Between the Achuevsk spit and Beisug Liman stands Primorsko-Akhtarsk populated by 32,165 people.
On the south, the Sea of Azov is connected to the Black Sea via the Strait of Kerch, which is bordered to the west by the Kerch peninsula on the Crimea, belonging to Ukraine and to the east by the Russian Taman peninsula in Krasnodar Kraj. The city of Kerch (population 151,300) is located on the Kerch peninsula, and the Taman peninsula contains the delta of the Kuban, a major Russian river. The strait is 41 kilometres long and 4 to 15 kilometres wide. Its narrowest part lies on the Sea of Azov side, restricted by the Chushka Spit which faces southwards in consequence of the outflow from the Azov to the Black Sea.
Average water temperatures are 0–1 °C in winter (2–3 °C in the Kerch Strait) and 24–25 °C in summer, with a maximum of about 28 °C in the open sea and above 30 °C near the shores. During the summer, the sea surface is usually slightly warmer than the air. Because of the shallow character of the sea, the temperature usually lowers by only about 1 °C with depth, but in cold winters, the difference can reach 5–7 °C.
The winds cause frequent storms, with the waves reaching 6 metres in the Taganrog Bay, 2–4 metres near the southern shores, and 1 metre in the Kerch Strait. In the open sea, their height is usually 1–2 metres, sometimes up to 3 metres. Winds also induce frequent seiches – freestanding oscillations of the sea bottom with the spatial period of 20–50 cm which last from minutes to hours. Another consequence of the winds is water currents. The prevailing current is a counter-clockwise swirl due to the westerly and south-westerly winds. Their speed is typically less than 10 cm/s, but can reach 60–70 cm/s for 15–20 m/s winds. In the bays, the flow is largely controlled by the inflow of the rivers and is directed away from the shore. In the Kerch Strait, the flow is normally toward the Black Sea due to the predominance of northern winds and the water inflow from the rivers; its average speed is 10–20 cm/s, reaching 30–40 cm in the narrowest parts. Tides are variable but can peak at 5.5 metres.
The shallowness and low salinity of the sea make it vulnerable to freezing during the winter. Fast ice bands ranging from 7 km in the north to 1.5 km in the south can occur temporarily at any time from late December to mid-March. Under the present climate the sea no longer freezes over, although during the 18th and 19th centuries, and as recently as in the late 1970s, it was normally frozen over every year by early February. The ice thickness reaches 30–40 cm in most parts of the sea and 60–80 cm in the Taganrog Bay. The ice is often unstable and piles up to the height of several metres. Before introduction of icebreakers, navigation was halted in the winter.
Regarding zooplankton, freshwaters of the Tanganrog Bay are inhabited by cladocera, copepoda and rotifers, such as ''Brachionus plicatilis'', ''Keratella curdata'' and ''Asplanchna''. Western part of the sea, which is more saline, hosts three forms of ''Acartia clausi'', as well as ''Centropages ponticus'', meroplankton and larvae of gastropoda, bivalvia and polychaete.
Benthos species reside mostly at the sea bottom and include worms, crustaceans, bottom protists, coelenterata and mollusks. Mollusks account for 60–98% of the invertebrate biomass at the Sea of Azov bottom.
The fauna of the freshwater Taganrog Bay is much poorer – it consists of 55 species from 36 general and 16 families; among them, three species are rare and 6 are endangered.
''Balanus improvisus'' is the first benthos species which spread from the Black Sea in the early 20th century and settled in the Sea of Azov. Its current density is 7 kg/m2. From 1956, ''Rapana venosa'' is observed in the Sea of Azov, but it could not adjust to low salinity and therefore is limited to the neighborhood of the Kerch Strait. Several Sea of Azov mollusks, such as shipworm (''Teredo navalis''), soft-shell clam (''Mya arernaria''), Mediterranean mussel (''Mytilus galloprovincialis'') and ''Anadara inaequivalvis'', originate from the Black Sea. Another example of invading species is the Dutch crab ''Rhithropanopeus harrisii'' which is observed both in saline and freshwater parts.
Three types of dolphins, short-beaked common dolphin, common bottlenose dolphin and harbour porpoise, regularly visited the Sea of Azov from the Black Sea. One type of harbour porpoise, ''Phocoena phocoena relicta'', used to stay in the Sea of Azov and therefore was called "Azov dolphin" () in Soviet Union. Nowadays, dolphins are rarely observed in the Sea of Azov. This is attributed to shallowing of the sea, increasing navigation activities, pollution and reduction in the fish population.
Increasing navigation rates have resulted in more pollution and even in ecological disasters. On 11 November 2007, a strong storm resulted in the sinking of four ships in the Strait of Kerch, in the Russian Port of Kavkaz. The ships were the Russian bulk carriers ''Volnogorsk'', ''Nakhichevan'', ''Kovel'' and the Georgian ''Haji Izmail'' with a Turkish crew. Six other ships were driven from their anchors and stranded and two tankers damaged (Volgoneft-139 and Volgoneft-123). As a result, about 1300 tons of fuel oil and about 6800 tons of sulfur entered the sea.
Another traditional activity in the sea is fishing. The Sea of Azov used to be the most productive fishing area in the Soviet Union: typical annual fish catches of 300,000 tonnes converted to 80 kg per hectare of surface. (The corresponding numbers are 2 kg in the Black Sea and 0.5 kg in the Mediterranean Sea.) The catch decreased in the 21st century, with more emphasis now on fish farming, especially of sturgeon. Traditionally much of the coastline has been a zone of health resorts.
The irrigation system of Taman Peninsula, supplied by the extended delta of Kuban River is favorable for agriculture and the region is famous for its vines. The area of Sivash lagoons and Arabat Spit had traditional salt producing industry. The Arabat Spit alone produced about 24,000 tonnes/year in 19th century.
The current name is popularly said to come from a Polovtsian prince named ''Azum'' or ''Asuf'', who was killed defending a town in this region in 1067. Alternatively, it may originate from Turkish "asak" which means "low" and may refer to the location of the sea. The sea is called "The Sea of Azof" in the 1898 Henry James' novel ''The Turn of the Screw''.
The second campaign involved both ground forces and the Azov fleet, which was built in Moscow Oblast, Voronezh, Bryansk and other regions between winter of 1695 and spring of 1696. In April 1696, the army of 75,000 headed by Aleksei Shein moved to Azov on the ground and by ships via Don River to Taganrog. In early May, they were joined by another fleet led by Peter I. On 27 May, the Russian fleet blocked Azov by sea. On 14 June, Turkish fleet tried to break the blockade, but after losing two ships retreated to the sea. After intensive bombardment of the fortress from the ground and sea, on 17 July the Russian army broke the defense lines and occupied parts of the wall. After heavy fighting, the garrison surrendered on 17 July. After the war, the Russian fleet base was moved to Taganrog and Azov, and 215 ships were built there between 1696 and 1711. In 1711, as a result of the Russo-Turkish War (1710–1711) and the Treaty of the Pruth, Azov was returned to Turkey and the Russian Azov fleet was destroyed. The city was captured back by Russians in 1737 during the Russo-Austrian-Turkish War (1735–1739). However, as a result of the consequent Treaty of Niš, they were not allowed to keep the fortress and military fleet.
Azov Category:Geography of Crimea Category:Landforms of Ukraine Category:Seas of Russia Category:Russia–Ukraine border
als:Asowsches Meer ang:Meotedisca Mere ab:Азов амшын ar:بحر آزوف an:Mar d'Azov ast:Mar d'Azov bn:আজভ সাগর ba:Азов диңгеҙе be:Азоўскае мора be-x-old:Азоўскае мора bs:Azovsko more br:Mor Azov bg:Азовско море ca:Mar d'Azov cv:Азов тинĕсĕ cs:Azovské moře cy:Môr Azov da:Azovske Hav de:Asowsches Meer dsb:Azowske mórjo et:Aasov el:Θάλασσα Αζόφ es:Mar de Azov eo:Azova Maro ext:Mari d'Azov eu:Azoveko itsasoa fa:دریای آزوف fr:Mer d'Azov fy:See fan Azov ga:Muir Mheoid gv:Mooir Azov gl:Mar de Azov ko:아조프 해 hy:Ազովի ծով hsb:Azowske morjo hr:Azovsko more id:Laut Azov os:Азовы денджыз it:Mar d'Azov he:ים אזוב kbd:Хы МыутӀэ ka:აზოვის ზღვა kk:Азов теңізі kv:Азов саридз ku:Deryaya Azov la:Palus Maeotis lv:Azovas jūra lt:Azovo jūra hu:Azovi-tenger mk:Азовско Море ml:അസോവ് കടൽ mr:अझोवचा समुद्र ms:Laut Azov mn:Азовын тэнгис nl:Zee van Azov ja:アゾフ海 no:Azovhavet nn:Azovhavet oc:Mar d'Azov pnb:بحیرہ ازوف pl:Morze Azowskie pt:Mar de Azov crh:Azaq deñizi ro:Marea Azov ru:Азовское море scn:Mari d'Azov simple:Sea of Azov sk:Azovské more sl:Azovsko morje sr:Азовско море fi:Asovanmeri sv:Azovska sjön tt:Азак диңгезе th:ทะเลอะซอฟ tr:Azak Denizi uk:Азовське море vec:Mar d'Azov vi:Biển Azov war:Dagat han Azov yi:ים פון אזאוו zh:亞速海This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
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