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Lake Sevan

Lake Sevan (Armenian: Սևանա լիճ, romanizedSevana lich) is the largest body of water in both Armenia and the Caucasus region. It is one of the largest freshwater high-altitude (alpine) lakes in Eurasia.[7] The lake is situated in Gegharkunik Province, at an altitude of 1,900 m (6,234 ft) above sea level. The total surface area of its basin is about 5,000 km2 (1,900 sq mi), which makes up 16 of Armenia's territory.[7] The lake itself is 1,242 km2 (480 sq mi), and the volume is 32.8 km3 (7.9 cu mi).[3] It is fed by 28 rivers and streams. Only 10% of the incoming water is drained by the Hrazdan River, while the remaining 90% evaporates.

Lake Sevan
Aerial view of the lake
Lake Sevan
Lake Sevan
LocationGegharkunik Province, Armenia
Coordinates40°19′N 45°21′E / 40.317°N 45.350°E / 40.317; 45.350Coordinates: 40°19′N 45°21′E / 40.317°N 45.350°E / 40.317; 45.350
Primary inflows28 rivers and streams
Primary outflowsevaporation: 85–90%,[1] Hrazdan River: 10–15%
Basin countriesArmenia
Managing agencyMinistry of Environment
Max. length74 km (46 mi)[2]
Max. width32 km (20 mi)[2]
Surface area1,242 km2 (480 sq mi)[3]
Average depth26.8 m (88 ft)[3]
Max. depth79.4 m (260 ft)[3]
Water volume33.2 km3 (26,900,000 acre⋅ft)[3]
Salinity0.7%[4]
Surface elevation1,900.44 m (6,235.0 ft) (2012)[5]
Islandsformerly 1 (now a peninsula)
Sections/sub-basins2 (Major Sevan, Minor Sevan)
SettlementsGavar, Sevan, Martuni, Vardenis
Designations
IUCN Category II (National Park)
Official nameSevan National Park
Designated14 March 1978
Official nameLake Sevan
Designated6 July 1993
Reference no.620[6]
Aerial view
Lake Sevan (frozen)

The lake provides some 90% of the fish and 80% of the crayfish catch of Armenia.[8] Sevan has significant economic, cultural, and recreational value. Its sole major island (now a peninsula) is home to a medieval monastery.

Sevan was heavily exploited for irrigation of the Ararat plain and hydroelectric power generation during the Soviet period. Consequently, its water level decreased by around 20 m (66 ft) and its volume reduced by more than 40%. Later two tunnels were built to divert water from highland rivers, which halted its decline and its level began rising. Before human intervention dramatically changed the lake's ecosystem, the lake was at an altitude of 1,916 m (6,286 ft) above sea level,[3] 95 m (312 ft) deep, covered an area of 1,416 km2 (547 sq mi) (5% of Armenia's entire area), and had a volume of 58.5 km3 (14.0 cu mi).

Etymology

Scholars believe that Sevan originated from the Urartian word su(i)n(i)a, usually translated as "lake".[9][10][11] The word is found on an 8th-century BC cuneiform inscription by the Urartian king Rusa I, found in Odzaberd, on the southern shore of the lake.[12] Per folk etymology, Sevan is either a combination of sev ("black") + Van (i.e., Lake Van) or sev ("black") and vank’ ("monastery").[13][12] Russian and European sources of the 19th and early 20th century sometimes referred to the lake as Sevanga or Sevang,[14][15][16][17][18][19] which are likely the Russified version of the Armenian phrase sev vank’ ("black monastery")[20] or, possibly, the Armenian phrase սա է վանքը sa ē vank'ə ("this is the monastery").[21]

The historical Armenian name of the lake, attested in early medieval texts, is Sea of Gegham[22][23] (classical Armenian: ծով Գեղամայ, tsov Geghamay).[a] In classical antiquity, the lake was known as Lychnitis (Ancient Greek: Λυχνῖτις).[26][27][28] The historic Georgian name of the lake is Gelakuni (გელაქუნი), which is essentially the Georgian transcription of Armenian Gegkarkuni.[29][30] John Chardin, who visited the lake in 1673, called it the "Lake of Erivan" and wrote that it was called Deria-Shirin (the Sweet Lake) by Persians and Kiagar-couni-sou by Armenians.[31]

The Turkic name Gokcha[32][33][34][35] or Gökche,[36][37][38] which means "blue lake' appeared in Russian and British sources from the 19th century on.[14][15][26][39][40]

Significance

Cultural

Along with Lake Van and Lake Urmia, Sevan is considered one of the three great "seas"[41] of historic Armenia.[42][43][44][45][46] It is the only one within the boundaries of present-day Republic of Armenia, while the other two are located in Turkey and Iran, respectively. Lake Sevan is considered the "jewel" of Armenia[47][48][49] and is "recognized as a national treasure" in the country.[50] The 2001 Law on Lake Sevan defines the lake as "a strategic ecosystem valuable for its environmental, economical, social, scientific, cultural, aesthetic, medical, climatic, recreational, and spiritual value."[51]

Chardin in 1673 noted the "extraordinary sweetness of the Water", the "small Island in the middle of it; where stands a Monastery built about 600 years ago, of which the Prior is an Archbishop", and "nine sorts of fish which are there taken; the fairest trouts and carps which are eaten at Erivan being caught in this Lake".[52]

Naturalist and traveler Friedrich Parrot, best known for ascending Mount Ararat in 1829 for the first time in history, wrote that,

[the] sea enjoys a high celebrity for sanctity with all Armenians, far and near, on account of the many old, and now partly deserted religious houses on its shores; and with all the rest of the natives for its wonderful stores of fish, of which salmon-trout is peculiarly esteemed, being dried and carried to great distances for sale."[53]

Economic

It is important for the Armenian economy: being the main source of irrigation water, Sevan provides low-cost electricity, fish, recreation, and tourism.[7]

Origin

Sevan originated during the early Quaternary when a Palaeo-Sevan, ten times larger than the present lake, came into existence by tectonic formation.[4] The current lake was formed some 25 to 30 thousand years ago.[2]

Human intervention

Exploitation and reduction

Background

Sevan was recognized as being a major potential water resource in the 19th century. Its high altitude location relative to the fertile Ararat plain and limited energy resources attracted engineers to explore ways of usage of the lake's water. In his 1910 book, Armenian engineer Sukias Manasserian proposed using Sevan's water for irrigation and hydroelectric power generation. He proposed draining the lake by 50 m (160 ft). Major Sevan would completely dry out, while Minor Sevan would have a surface area of 240 km2 (93 sq mi).[54]

Implementation

Manasserian's proposal was adopted by the Soviet authorities in the 1930s when, under Joseph Stalin, the country was undergoing rapid industrialization. Works on the project started in 1933. The riverbed of Hrazdan was deepened through excavation. A tunnel was bored around 40 metres (130 ft) under the lake's surface. The tunnel was completed in 1949 and thereafter the Sevan's level began to drop significantly, at a rate over 1 metre (3 ft) per year. The water was used for irrigation and the Sevan–Hrazdan Cascade of six hydroelectric power stations on Hrazdan River.[54][55]

Hydrometric indices of Lake Sevan before and after intervention[3]
Indices 1936 2000 Decrease
Height above sea level, m 1915.97 1896.65 -19.32
Lake surface, km2 1416.2 1238.8 12.5%
Mean depth, m 41.3 26.8 35%
Maximum depth, m 98.7 79.7 19%
Water amount, km3 58.48 33.20 43.2%

Effects

During the second half of the 20th century, the ecological condition of Lake Sevan underwent tangible changes and vast degradation due to reduced water level, increased eutrophication, and detrimental impact of human activity on the biological diversity of the lake. According to Babayan et al. the lake level dropped by 19.88 m (65.2 ft) by 2002, while the volume decreased by 43.8% (from 58.5 to 32.9 km3 [14.0 to 7.9 cu mi]). Due to the water level decrease, the quality of the water deteriorated, natural habitats were destroyed that meant loss of biodiversity.[54] Vardanian wrote that drop of the lake level and the economic development in the basin brought about the change in hydro-chemical regime of the lake. The quality of the water deteriorated, water turbidity increased. The inner circulation of the water constituents as well as the circulation of the biological substances altered.[56]

Reversal and recovery

According to Babayan et al. "by the 1950s it had become evident that the ecological and economic consequences of extensive exploitation of the water of Lake Sevan were too undesirable to continue in the same way."[54]

 
Map showing the two tunnels bringing water to the lake and the Hrazdan River and the six hydroelectric power stations built on it.

Arpa–Sevan tunnel

In 1964 a project began to divert the Arpa River (from a reservoir near Kechut) through a 49 km (30 mi) long tunnel to the lake near Artsvanist.[57][58] The tunnel, called Arpa–Sevan, was completed in 1981. It brings up to 200 million cubic metres (7.1 billion cubic feet) of water to Sevan per year.[59]

It is estimated, that due to climate change by year 2030, the outflow of the Arpa river will decrease by 22%.[60]

Vorotan–Arpa tunnel

Since the water level in the lake did not rise as fast and as much, on 20 April 1981 the Council of Ministers of the Soviet Union made a decision for the construction of the Vorotan–Arpa tunnel.[61] This 21.6 km (13.4 mi) long tunnel was begun from the Spandarian Reservoir on the Vorotan River further south from Kechut.[62] Due to the Nagorno-Karabakh conflict and the 1988 earthquake in northwestern Armenia construction was halted. The tunnel was inaugurated on 26 April 2004.[63] The Vorotan–Arpa tunnel brings an additional 165 million cubic metres (5.8 billion cubic feet) to the lake annually.[59][61]

Increase in water level

After the construction of the two tunnels the water level began rising significantly since the mid-2000s. In 2007 it was reported that the water level had risen by 2.44 metres (8.0 ft) in the previous six years.[64] It reached 1,900.04 m (6,233.7 ft) in October 2010. The government committee on Sevan forecasts that the level will reach 1,903.5 m (6,245 ft) by 2029.[65]

Water level stood at 1900.44 m in November 2019.[66]

Population

 
Armenia's Gegharkunik Province shown in red

The Gegharkunik Province, which roughly corresponds to the lake's basin, had a de facto population of 211,828 according to the 2011 Armenian census. The largest settlements in the province are: Gavar (20,765), Sevan (19,229), Martuni (12,894), Vardenis (12,685), Vardenik (9,880), Yeranos (6,119), Chambarak (5,660), Lchashen (5,054), Tsovagyugh (4,189).[67]

Tourism

Beaches

Lake Sevan has the only beaches in Armenia.[68] They are a popular destination for the Armenians.[69] Sevan's beaches provide a unique experience within the landlocked country for Armenians. The beaches adjacent to hotels are usually privatized.[68] Numerous beaches are located along the entire lake shore. The most popular of them is a 2.5-kilometre (1+12 mi) stretch on the northern shore, extending northwest from the peninsula. Resorts include Harsnaqar Hotel, Best Western Bohemian Resort, and numerous smaller facilities. Activities include swimming, sunbathing, jet skiing, windsurfing, and sailing. The area also includes numerous campgrounds and picnic areas for daytime use. A less-developed beach destination stretches along the eastern shore from Tsovagyugh to Shorzha, with numerous small cabins at Shorzha. The Avan Marak Tsapatagh Hotel, a Tufenkian Heritage Hotel, is a luxury resort on the undeveloped southeastern shore of the lake near Tsapatagh.

The Armenian government pledged to "reduce the growing commercialization of rest at Lake Sevan that makes it unaffordable for most citizens struggling to find other beach options during hot Armenian summers."[70] In 2011 the government established public beaches in the Sevan National Park's recreational zone. The first two public beaches were opened in July. Some 100,000 people visited the public beaches in summer of 2011. The beaches have free parking space, children's and sports playgrounds, toilets, medical aid stations, and rescue services. They are also equipped with beach couches.[71] By 2014, the number of public beaches reached 11. Some 200,000 people took holiday there in 2014.[72]

Sites of interest

The most famous cultural monument is the Sevanavank monastery located on the peninsula, which was until the mid-20th century an island. Another prominent monastery at the western shore is Hayravank, and further south, in the village of Noratus, is a field of khachkars; a cemetery with about 900 khachkars of different styles. Additional khachkars are found at Nerkin Getashen on the south coast.

In 2017, a Wikipedia globe was submerged in the lake to create an artificial reef.[73]

Island

Fauna

Fish

Sevan trout (Salmo ischchan) is an endemic species of the lake, but it is endangered as some competitors were introduced into the lake, including common whitefish (Coregonus lavaretus) from Lake Ladoga, goldfish (Carrasius auratus), and crayfish (Astacus leptodactylus). If the Sevan trout is likely to become extinct in its "home" lake, it seems that it will survive in Issyk-Kul Lake (Kyrgyzstan), where it was introduced in the 1970s.

Due to anthropogenic impact, changes have occurred in all the biological components of the lake, including bacteria, benthos, and of course fish. Thus, the benthic mass increased tenfold in 1940, due to oligochaetes and chrinomices. Today, the former prevail and multiply the oxygen-rich residue at the bottom of the lake.

The bojak and winter bakhtak species of the Sevan-endemic trout have already disappeared. The summer bakhtak occurs rarely; the gegharkuni is still capable of reproducing naturally. In 1980s, the quantity of Sevan koghak significantly decreased. Numerous reasons for this have been identified:

  • The level of the water was lowered, the paths of rivers changed, and the trout (gegharkuni and Aestivalis species) lost their natural spаwning places. Changes in the areas near the shore (mossing, disappearance of macrophyte plants) also had a negative impact on the trout lays. The trout spawn only in certain areas, with oxygen-rich underground water at the depth of 25–30 m (80–100 ft).
  • Deoxidization of the bottom is extremely detrimental for salmon, which are used to more than 4 mg/L of O2.
  • In the last 10 years, poaching rapidly increased, which significantly reduced the number of fish in the lake.

Birds

The bird fauna of the lake and its vicinity makes over 200 species, out of which 95 species are breeding.[74] The lake is an important breeding ground for the Armenian gull (Larus armenicus) with about 4,000–5,000 pairs. During migration the Lake is visited by wide variety of birds including raptors, such as Montagu's harrier (Circus pygargus) and Steppe eagle (Aquila nipalensis), waterbirds such as red-crested pochard (Netta rufina) and ferruginous duck (Aythya nyroca), while during the wintering period the lake hosts another set of species such as Bewick's swan (Cygnus columbianus) and great black-headed gull (Larus ichthyaetus). Sometimes the lake is visited by very rare Armenian migrant lesser white-fronted goose (Anser erythropus).

Pollution

The rivers feeding Lake Sevan flow through densely populated settlements which produce agricultural, domestic, and industrial waste. It significantly changes the lake's ecosystem. According to a 2017 study the lake's water contains concentration of metals such as aluminium, nickel, arsenic, cobalt, and lead.[75]

According to Armenian environmental organization EcoLur, the lake is in a critical condition because of the presence of vanadium. Environmental Impact Monitoring Center, an agency of the Armenian Ministry of Nature Protection, reported in 2012 that the average annual concentration of vanadium (64 μg/L) in the samples taken from Lake Sevan exceeded the maximum permissible concentration (MPC) by 6.4 times, while selenium (26 μg/L) exceeded MPC 2.6 times, copper (21 μg/L) 2.1 times, magnesium (60 μg/L) 1.2 times.[76] A 2016 study found that mining and metallurgical industrial activities—namely the Sotk gold mine on the southeastern shore of the lake—caused significant heavy metal, especially vanadium, pollution of the Sotk and Masrik rivers in the Lake Sevan catchment basin. According to the researchers it "may have posed health risks to aquatic life as well as to humans (at least in the case of river water used for drinking purposes)."[77]

References

Notes
  1. ^ modern Armenian: Գեղամա ծով, Geghama tsov.[24] The name is mentioned by several medieval Armenian historians, including in Movses Khorenatsi's History of Armenia.[25]
Citations
  1. ^ EEA 2015, p. 9.
  2. ^ a b c EEA 2015, p. 7.
  3. ^ a b c d e f g Vardanian 2009, p. 78.
  4. ^ a b O'Sullivan, Patrick; Reynolds, C. S., eds. (2008). The Lakes Handbook: Limnology and Limnetic Ecology. John Wiley & Sons. p. 57. ISBN 978-0-470-99926-4.
  5. ^ . news.am. 2 March 2013. Archived from the original on 4 March 2016. Retrieved 7 March 2012.
  6. ^ "Lake Sevan". Ramsar Sites Information Service. Retrieved 25 April 2018.
  7. ^ a b c Babayan et al. 2006, p. 347.
  8. ^ Babayan et al. 2006, p. 348.
  9. ^ Севан от урартск. суниа – "озеро" Pospelov, Evgeniy [in Russian] (1998). Географические названия мира [Geograficheskie Nazvaniia Mira] (Geographic names of the world) (in Russian). Moscow. p. 160. ISBN 5-89216-029-7.
  10. ^ Kirillova, Yulia M. (1969). "Севан"+(от+"Сиунна"+—+страна Армения—открытый музей (in Russian). Iskusstvo. p. 28. Урартийцам обязано своим происхождением слово "Севан" (от "Сиунна" – страна озерная).
  11. ^ Murzayev, Ed. M. (1984). Словарь народных географических терминов (in Russian). Mysl. p. 112. Вне ряда Севан – озеро в Армении, имя которого восходит к урартскому гумна – " озеро".
  12. ^ a b Avetisyan 1979, pp. 86-87.
  13. ^ René Grousset. The Empire of the Steppes: A History of Central Asia, Rutgers University Press, 1970, p. 348, ISBN 0-8135-1304-9
  14. ^ a b "Sevan" . Encyclopædia Britannica. Vol. 12 (11th ed.). 1911. p. 192.
  15. ^ a b Massalski, Władysław [in Russian] (1892). "Гокча" . Brockhaus and Efron Encyclopedic Dictionary Volume X (in Russian). pp. 39–40.
  16. ^ Semenov, Petr Petrovič (1873). Geografičesko-statističeskij slovarʹ Rossijskoj Imperii: Pavasterort – Sjatra-Kasy, Volume 4 (in Russian). Bezobrazov i komp. p. 532. Севанга, озеро, Эриванской г-іи, Новобаязетскаго у.; см. Гокчинское.
  17. ^ Nadezhdin, P. (1869). Природа и люди на Кавказѣ и за Кавказом (in Russian). Saint Petersburg: V. Demakov Typography. p. 230. Гёг-чайское озеро (синяя вода), по-армянски Севанга, есть самое значительное въ цѣломъ Закавказскомъ краѣ...
  18. ^ Lynch, H. F. B. (1896). "The Ascent of Mount Ararat". Scribner's Magazine. 19: 215. Ararat rises from the table-land of Armenia between the Black and Caspian Seas in the country comprised within a triangle between the lakes of Sevanga, Urumia, and Van.
  19. ^ Francis Rawdon Chesney (1850). The expedition for the survey of the rivers Euphrates and Tigris. London: Longman, Brown, Green, and Longmans. p. 763. Ghokhcha, Gouktcha, or Sevanga, lake (in Armenia)
  20. ^ Baer, Karl M.; Lukina, Tatyana A. (1984). Каспийская экспедиция К.М. Бэра, 1853–1857 гг: дневники и материалы [Caspiran Encyclopedia of K. M. Baer, 1853–1857: Diary and Materials] (in Russian). Leningrad: Nauka. p. 532. Севанг (арм. сев-ванг – черный монастырь)
  21. ^ Ivanovsky, A. A. [in Russian] (1911). По Закавказью. археологические наблюдения и исследования 1893, 1894 и 1896 гг. [Through the Transcaucasia: archeological observations and studies in 1893, 1894, and 1896] (in Russian). Moscow: Mamontov Typography. p. 30.
  22. ^ "Geographic characteristic of the Republic of Armenia" (PDF). armstat.am. National Statistical Service of Republic of Armenia. Sevan is adornment of nature of the Republic of Armenia (the ancient name is Geghama sea).
  23. ^ Avakian, Arra S. (1998). "Van". Armenia: A Journey Through History. Electric Press. p. 3. ISBN 978-0-916919-24-5. ...Sevan (Geghama)...
  24. ^ Avetisyan 1979, p. 310: "Գեղամա ծով"
  25. ^ Translated as "lake of Geḷam" by Robert W. Thomson, see Thomson, Robert W. (1980). Moses Khorenats'i History of the Armenians (2nd ed.). Harvard University Press. p. 185.
  26. ^ a b Bryce, James (1878). Transcaucasia and Ararat: Being Notes of a Vacation Tour in Autumn of 1876 (3rd ed.). London: Macmillan and Co. p. 168. ...the lake which the Russians call Goktcha (a corruption of the Tartar name, which means blue lake), and the natives Sevan, the Lychnitis of the ancients...
  27. ^ Toumanoff, Cyrille (1963). Studies in Christian Caucasian history. Georgetown University Press. p. 33. ...Thospitis, Mantiane, and Lychnitis, or, as they are now called, Van, Urmia, and Sevan...
  28. ^ Smith, William (1854). "LYCHNI´TIS". Dictionary of Greek and Roman Geography. London. view online
  29. ^ "Gruusia / Georgian". eki.ee. Institute of the Estonian Language. Gelakunis ţba / გელაქუნის ტბა (Sewan) h2 AM
  30. ^ "გელაქუნი [gelakuni]" (in Georgian). National Parliamentary Library of Georgia..
  31. ^ "The Travels of Sir John Chardin into Persia and the East Indies". London, 1686, pp247-248
  32. ^ Sykes, Sir Percy (2013). A History Of Persia. Vol. 2. Taylor & Francis. p. 317. ISBN 9781136525971. The Dispute about Gokcha and its Seizure by Russia, 1825. —The treaty of Gulistan had been so vaguely worded that three districts lying between Erivan and the Gokcha Lake, the most important of which was Gokcha, remained in dispute.
  33. ^ Bosworth, C. E. (1986). "Arrān". Encyclopædia Iranica. ...Lake Sevan, later Turkish Gökçe...
  34. ^ Woods, John E. (1999). The Aqquyunlu: Clan, Confederation, Empire. University of Utah Press. ISBN 978-0-87480-565-9. ...Lake Gökçe (Sevan) in Armenia...
  35. ^ Allen, William Edward David; Muratoff, Paul (1953). Caucasian Battlefields: A History of the Wars on the Turco-Caucasian Border 1828–1921. Cambridge University Press. p. 9. ISBN 978-1-108-01335-2. ...Lake Sevan (A. Sevan; T. Gök-çay; 'Blue water')...
  36. ^ Lang, David Marshall (1980). Armenia, cradle of civilization. Boston: Allen & Unwin. p. 28. ISBN 9780049560093. Rather different is the character of Lake Sevan , known in Turkish as Gökche , or ' the Blue Lake '...
  37. ^ von der Osten, Hans Henning (1927). Explorations in Hittite Asia Minor A Preliminary Report. University of Chicago Press. p. 144.
  38. ^ Schütz, E. (1998). Armeno-Turcica Selected Studies. Indiana University, Research Institute for Inner Asian Studies. p. 273. ISBN 9780933070431. but also on the Armenians of the Persian metropolis , Isfahan , the tümen of Nakhichevan , the Gökche Sec ( Lake - Sevan ...
  39. ^ Mill, James (1858). The history of British India: (In 10 vol.). Madden. p. 152. It had gone farther , and had occupied a strip of land on the north - west of the Gokcha Lake belonging , by its own admission to Persia ...
  40. ^ Freshfield, Douglas William (1869). Travels in the Central Caucasus and Bashan: Including Visits to Ararat and Tabreez and Ascents of Kazbek and Elbruz. Longmans, Green, & Company. p. 118-119. For some distance we bore to the right, with but little descent, until presently as much of the big Gokcha lake as the mists did not enshroud came into sight.
  41. ^ Woolf, Greg (2007). Ancient civilizations: the illustrated guide to belief, mythology, and art. Barnes & Noble. p. 129. ISBN 978-1-4351-0121-0. Lakes Sevan, Urmia, and Van are considered by Armenians to be their "three seas"...
  42. ^ J. R. Russell. Zoroastrianism in Armenia. — Harvard University Press, 1987. — P. 1—2.
  43. ^ Encyclopaedia of Islam. — Leiden: BRILL, 1986. — Vol. I. — P. 634.
  44. ^ Robert H. Hewsen. The Geography of Armenia // The Armenian People From Ancient to Modern Times: The Dynastic Periods: From Antiquity to the Fourteenth Century / Edited by Richard G. Hovannisian. — St. Martin’s Press, 1997. — Vol. I. — P. 8—10.
  45. ^ Papajian, Sarkis (1974). A brief history of Armenia. Fresno, California: Armenian Evangelical Union of North America. p. 2. Historic Armenia has three great lakes: Sevan, Van and Urmia.
  46. ^ Mouradian, George (1995). Armenian infotext. Bookshelf Publishers. p. 185. ISBN 978-0-9634509-2-0. Urmia, Lake, one of the three large lakes of ancient Armenia, the other two being Lake Van and Lake Sevan.
  47. ^ Krikorian, Robert; Masih, Joseph (1999). Armenia: At the Crossroads. Routledge. p. 2. ISBN 978-1-134-41218-1. The water level of Lake Sevan, the jewel of Armenia, was dropping precipitously...
  48. ^ Mkrtchyan, Gayane (27 December 2013). "Lake Concerns: Group warns that "Armenia's Jewel" could be endangered by carelessness". ArmeniaNow.
  49. ^ Johnson, Jerry L. (2000). Crossing Borders--confronting History: Intercultural Adjustment in a Post-Cold War World. University Press of America. p. 72. ISBN 978-0-7618-1536-5. Armenians consider Lake Sevan a jewel of their country.
  50. ^ Babayan et al. 2006, p. 357.
  51. ^ "Հայաստանի Հանրապետության օրենքը Սևանա լճի մասին [Republic of Armenia Law on Lake Sevan]". parliament.am (in Armenian). 15 March 2001.
  52. ^ "The Travels of Sir John Chardin into Persia and the East Indies". London, 1686, pp247-248.
  53. ^ Parrot, Friedrich (2016) [1846]. Journey to Ararat. Translated by William Desborough Cooley. Introduction by Pietro A. Shakarian. London: Gomidas Institute. p. 75. ISBN 978-1-909382-24-4.
  54. ^ a b c d Babayan et al. 2006, p. 354.
  55. ^ Vardanian 2009, p. 79.
  56. ^ Vardanian 2009, p. 83.
  57. ^ "1961-1981 the Complex of Hydraulic Works for Transfer of the Arpa and Yeghegis | Arpa Sevan".
  58. ^ "1968-1980 Construction of Tunnel No.2 and of Arpa-Sevan Conduit | Arpa Sevan".
  59. ^ a b Babayan et al. 2006, p. 356.
  60. ^ Melkonyan, Ani (2015-11-01). "Climate change impact on water resources and crop production in Armenia". Agricultural Water Management. 161: 86–101. doi:10.1016/j.agwat.2015.07.004. ISSN 0378-3774.
  61. ^ a b Makaryan, Marieta (27 April 2004). "Ավարտվեց "Որոտան-Արփա" թունելի շինարարությունը [Construction of "Vorotan-Arpa" tunnel completed]". Azg (in Armenian).
  62. ^ "1995-2003 "Complex of Hydraulic Structures for Diversion of the Vorotan River Runoff to the Basin of the Arpa River" | Arpa Sevan".
  63. ^ . Azg (in Armenian). 27 April 2004. Archived from the original on 12 November 2015. Retrieved 7 June 2013.
  64. ^ Harutyunyan, Arpi (29 June 2007). "Sevan Rising: Lake Sevan's recovery quicker than expected". ArmeniaNow.
  65. ^ Shoghikyan, Hovhannes (6 October 2010). "Սեւանա լճի մակարդակը այս տարի բարձրացել է 56 սանտիմետրով". azatutyun.am (in Armenian). Radio Free Europe/Radio Liberty.
  66. ^ "Water report from 2019 Nov 20" (PDF).
  67. ^ "ՀՀ Գեղարքունիքի մարզի առկա և մշտական բնակչությունն ըստ վարչատարածքային միավորների և սեռի" (PDF). armstat.am (in Armenian).
  68. ^ a b Holding, Deirdre (2014). Armenia: with Nagorno Karabagh (4th ed.). Bradt Travel Guides. p. 202. ISBN 978-1-84162-555-3.
  69. ^ Bonner, Raymond (9 August 1993). "Yerevan Journal; Landlocked and Alone, Armenia Fears the Winter". The New York Times. The beach at Lake Sevan, 40 miles east the capital, would normally be packed this time of the year.
  70. ^ Chilingarian, Elina (8 July 2011). "'Public' Beaches Available at Armenia's Lake". azatutyun.am. Radio Free Europe/Radio Liberty.
  71. ^ "Available 'Blue Pearl': Public beaches proved popular with Lake Sevan holidaymakers". ArmeniaNow. 30 September 2011.
  72. ^ "The holiday season opened along with the public beaches of Sevan Lake". Public Television of Armenia. 5 July 2015.
  73. ^ "CEE/Newsletter/October 2017/Full – Meta". meta.wikimedia.org. Retrieved 22 April 2020.
  74. ^ Aghababyan K., Khanamirian G. 2017. Baseline study of the Birds at Lake Sevan for further monitoring. Lake Sevan National Park.
  75. ^ Avalyan, R.E.; Aghajanyan, E.A.; Khosrovyan, A; Atoyants, A.L.; Simonyan, A.E.; Aroutiounian, R.M. (August 2017). "Assessment of mutagenicity of water from Lake Sevan, Armenia with application of Tradescantia (clone 02)". Mutation Research. 800–802 (8–13): 8–13. doi:10.1016/j.mrfmmm.2017.03.006. PMID 28431268.
  76. ^ "Sevan Lake (2012)". ecolur.org. Ecolur Network.
  77. ^ Gevorgyan, Gor A.; Mamyan, Armine S.; Hambaryan, Lusine R.; Khudaverdyan, Surik Kh.; Vaseashta, Ashok (2016). "Environmental Risk Assessment of Heavy Metal Pollution in Armenian River Ecosystems: Case Study of Lake Sevan and Debed River Catchment Basins". Polish Journal of Environmental Studies. 25 (6): 2387–2399. doi:10.15244/pjoes/63734. PDF

Bibliography

  • Vardanian, Trahel (2009). "The Hydro-chemical changes of Lake Sevan after the artificial lowering of the water level". In Bahadir, Ali Mufit; Duca, Gheorghe (eds.). The Role of Ecological Chemistry in Pollution Research and Sustainable Development. Springer Science & Business Media. pp. 77–84. ISBN 978-90-481-2901-0.
  • Babayan, Araik; Hakobyan, Susanna; Jenderedjian, Karen; Muradyan, Siranush; Voskanov, Mikhail (2006). (PDF). ilec.or.jp. International Lake Environment Committee Foundation. pp. 347–362. Archived from the original (PDF) on March 14, 2012.
  • (in Armenian). Yerevan: European Environment Agency Shared Environment Information System. 2015. Archived from the original (PDF) on 5 March 2016. Retrieved 16 November 2015.
  • Avetisyan, Kamsar [in Armenian] (1979). Հայրենագիտական Էտյուդներ [Notes on Armenian Studies] (in Armenian). Yerevan: Sovetakan grogh.

lake, sevan, armenian, Սևանա, լիճ, romanized, sevana, lich, largest, body, water, both, armenia, caucasus, region, largest, freshwater, high, altitude, alpine, lakes, eurasia, lake, situated, gegharkunik, province, altitude, above, level, total, surface, area,. Lake Sevan Armenian Սևանա լիճ romanized Sevana lich is the largest body of water in both Armenia and the Caucasus region It is one of the largest freshwater high altitude alpine lakes in Eurasia 7 The lake is situated in Gegharkunik Province at an altitude of 1 900 m 6 234 ft above sea level The total surface area of its basin is about 5 000 km2 1 900 sq mi which makes up 1 6 of Armenia s territory 7 The lake itself is 1 242 km2 480 sq mi and the volume is 32 8 km3 7 9 cu mi 3 It is fed by 28 rivers and streams Only 10 of the incoming water is drained by the Hrazdan River while the remaining 90 evaporates Lake SevanAerial view of the lakeLake SevanShow map of ArmeniaLake SevanShow map of Caucasus mountainsLocationGegharkunik Province ArmeniaCoordinates40 19 N 45 21 E 40 317 N 45 350 E 40 317 45 350 Coordinates 40 19 N 45 21 E 40 317 N 45 350 E 40 317 45 350Primary inflows28 rivers and streamsPrimary outflowsevaporation 85 90 1 Hrazdan River 10 15 Basin countriesArmeniaManaging agencyMinistry of EnvironmentMax length74 km 46 mi 2 Max width32 km 20 mi 2 Surface area1 242 km2 480 sq mi 3 Average depth26 8 m 88 ft 3 Max depth79 4 m 260 ft 3 Water volume33 2 km3 26 900 000 acre ft 3 Salinity0 7 4 Surface elevation1 900 44 m 6 235 0 ft 2012 5 Islandsformerly 1 now a peninsula Sections sub basins2 Major Sevan Minor Sevan SettlementsGavar Sevan Martuni VardenisDesignationsIUCN Category II National Park Official nameSevan National ParkDesignated14 March 1978Ramsar WetlandOfficial nameLake SevanDesignated6 July 1993Reference no 620 6 Aerial view Lake Sevan frozen The lake provides some 90 of the fish and 80 of the crayfish catch of Armenia 8 Sevan has significant economic cultural and recreational value Its sole major island now a peninsula is home to a medieval monastery Sevan was heavily exploited for irrigation of the Ararat plain and hydroelectric power generation during the Soviet period Consequently its water level decreased by around 20 m 66 ft and its volume reduced by more than 40 Later two tunnels were built to divert water from highland rivers which halted its decline and its level began rising Before human intervention dramatically changed the lake s ecosystem the lake was at an altitude of 1 916 m 6 286 ft above sea level 3 95 m 312 ft deep covered an area of 1 416 km2 547 sq mi 5 of Armenia s entire area and had a volume of 58 5 km3 14 0 cu mi Contents 1 Etymology 2 Significance 2 1 Cultural 2 2 Economic 3 Origin 4 Human intervention 4 1 Exploitation and reduction 4 1 1 Background 4 1 2 Implementation 4 1 3 Effects 4 2 Reversal and recovery 4 2 1 Arpa Sevan tunnel 4 2 2 Vorotan Arpa tunnel 4 2 3 Increase in water level 5 Population 6 Tourism 6 1 Beaches 6 2 Sites of interest 6 2 1 Island 7 Fauna 7 1 Fish 7 2 Birds 8 Pollution 9 References 10 BibliographyEtymology EditScholars believe that Sevan originated from the Urartian word su i n i a usually translated as lake 9 10 11 The word is found on an 8th century BC cuneiform inscription by the Urartian king Rusa I found in Odzaberd on the southern shore of the lake 12 Per folk etymology Sevan is either a combination of sev black Van i e Lake Van or sev black and vank monastery 13 12 Russian and European sources of the 19th and early 20th century sometimes referred to the lake as Sevanga or Sevang 14 15 16 17 18 19 which are likely the Russified version of the Armenian phrase sev vank black monastery 20 or possibly the Armenian phrase սա է վանքը sa e vank e this is the monastery 21 The historical Armenian name of the lake attested in early medieval texts is Sea of Gegham 22 23 classical Armenian ծով Գեղամայ tsov Geghamay a In classical antiquity the lake was known as Lychnitis Ancient Greek Lyxnῖtis 26 27 28 The historic Georgian name of the lake is Gelakuni გელაქუნი which is essentially the Georgian transcription of Armenian Gegkarkuni 29 30 John Chardin who visited the lake in 1673 called it the Lake of Erivan and wrote that it was called Deria Shirin the Sweet Lake by Persians and Kiagar couni sou by Armenians 31 The Turkic name Gokcha 32 33 34 35 or Gokche 36 37 38 which means blue lake appeared in Russian and British sources from the 19th century on 14 15 26 39 40 Significance EditCultural Edit Along with Lake Van and Lake Urmia Sevan is considered one of the three great seas 41 of historic Armenia 42 43 44 45 46 It is the only one within the boundaries of present day Republic of Armenia while the other two are located in Turkey and Iran respectively Lake Sevan is considered the jewel of Armenia 47 48 49 and is recognized as a national treasure in the country 50 The 2001 Law on Lake Sevan defines the lake as a strategic ecosystem valuable for its environmental economical social scientific cultural aesthetic medical climatic recreational and spiritual value 51 Chardin in 1673 noted the extraordinary sweetness of the Water the small Island in the middle of it where stands a Monastery built about 600 years ago of which the Prior is an Archbishop and nine sorts of fish which are there taken the fairest trouts and carps which are eaten at Erivan being caught in this Lake 52 Naturalist and traveler Friedrich Parrot best known for ascending Mount Ararat in 1829 for the first time in history wrote that the sea enjoys a high celebrity for sanctity with all Armenians far and near on account of the many old and now partly deserted religious houses on its shores and with all the rest of the natives for its wonderful stores of fish of which salmon trout is peculiarly esteemed being dried and carried to great distances for sale 53 Economic Edit It is important for the Armenian economy being the main source of irrigation water Sevan provides low cost electricity fish recreation and tourism 7 Origin EditSevan originated during the early Quaternary when a Palaeo Sevan ten times larger than the present lake came into existence by tectonic formation 4 The current lake was formed some 25 to 30 thousand years ago 2 Human intervention EditExploitation and reduction Edit Background Edit Sevan was recognized as being a major potential water resource in the 19th century Its high altitude location relative to the fertile Ararat plain and limited energy resources attracted engineers to explore ways of usage of the lake s water In his 1910 book Armenian engineer Sukias Manasserian proposed using Sevan s water for irrigation and hydroelectric power generation He proposed draining the lake by 50 m 160 ft Major Sevan would completely dry out while Minor Sevan would have a surface area of 240 km2 93 sq mi 54 Implementation Edit Manasserian s proposal was adopted by the Soviet authorities in the 1930s when under Joseph Stalin the country was undergoing rapid industrialization Works on the project started in 1933 The riverbed of Hrazdan was deepened through excavation A tunnel was bored around 40 metres 130 ft under the lake s surface The tunnel was completed in 1949 and thereafter the Sevan s level began to drop significantly at a rate over 1 metre 3 ft per year The water was used for irrigation and the Sevan Hrazdan Cascade of six hydroelectric power stations on Hrazdan River 54 55 Hydrometric indices of Lake Sevan before and after intervention 3 Indices 1936 2000 DecreaseHeight above sea level m 1915 97 1896 65 19 32Lake surface km2 1416 2 1238 8 12 5 Mean depth m 41 3 26 8 35 Maximum depth m 98 7 79 7 19 Water amount km3 58 48 33 20 43 2 Effects Edit During the second half of the 20th century the ecological condition of Lake Sevan underwent tangible changes and vast degradation due to reduced water level increased eutrophication and detrimental impact of human activity on the biological diversity of the lake According to Babayan et al the lake level dropped by 19 88 m 65 2 ft by 2002 while the volume decreased by 43 8 from 58 5 to 32 9 km3 14 0 to 7 9 cu mi Due to the water level decrease the quality of the water deteriorated natural habitats were destroyed that meant loss of biodiversity 54 Vardanian wrote that drop of the lake level and the economic development in the basin brought about the change in hydro chemical regime of the lake The quality of the water deteriorated water turbidity increased The inner circulation of the water constituents as well as the circulation of the biological substances altered 56 Reversal and recovery Edit According to Babayan et al by the 1950s it had become evident that the ecological and economic consequences of extensive exploitation of the water of Lake Sevan were too undesirable to continue in the same way 54 Map showing the two tunnels bringing water to the lake and the Hrazdan River and the six hydroelectric power stations built on it Arpa Sevan tunnel Edit In 1964 a project began to divert the Arpa River from a reservoir near Kechut through a 49 km 30 mi long tunnel to the lake near Artsvanist 57 58 The tunnel called Arpa Sevan was completed in 1981 It brings up to 200 million cubic metres 7 1 billion cubic feet of water to Sevan per year 59 It is estimated that due to climate change by year 2030 the outflow of the Arpa river will decrease by 22 60 Vorotan Arpa tunnel Edit Since the water level in the lake did not rise as fast and as much on 20 April 1981 the Council of Ministers of the Soviet Union made a decision for the construction of the Vorotan Arpa tunnel 61 This 21 6 km 13 4 mi long tunnel was begun from the Spandarian Reservoir on the Vorotan River further south from Kechut 62 Due to the Nagorno Karabakh conflict and the 1988 earthquake in northwestern Armenia construction was halted The tunnel was inaugurated on 26 April 2004 63 The Vorotan Arpa tunnel brings an additional 165 million cubic metres 5 8 billion cubic feet to the lake annually 59 61 Increase in water level Edit After the construction of the two tunnels the water level began rising significantly since the mid 2000s In 2007 it was reported that the water level had risen by 2 44 metres 8 0 ft in the previous six years 64 It reached 1 900 04 m 6 233 7 ft in October 2010 The government committee on Sevan forecasts that the level will reach 1 903 5 m 6 245 ft by 2029 65 Water level stood at 1900 44 m in November 2019 66 Population Edit Armenia s Gegharkunik Province shown in red The Gegharkunik Province which roughly corresponds to the lake s basin had a de facto population of 211 828 according to the 2011 Armenian census The largest settlements in the province are Gavar 20 765 Sevan 19 229 Martuni 12 894 Vardenis 12 685 Vardenik 9 880 Yeranos 6 119 Chambarak 5 660 Lchashen 5 054 Tsovagyugh 4 189 67 Tourism EditBeaches Edit Lake Sevan has the only beaches in Armenia 68 They are a popular destination for the Armenians 69 Sevan s beaches provide a unique experience within the landlocked country for Armenians The beaches adjacent to hotels are usually privatized 68 Numerous beaches are located along the entire lake shore The most popular of them is a 2 5 kilometre 1 1 2 mi stretch on the northern shore extending northwest from the peninsula Resorts include Harsnaqar Hotel Best Western Bohemian Resort and numerous smaller facilities Activities include swimming sunbathing jet skiing windsurfing and sailing The area also includes numerous campgrounds and picnic areas for daytime use A less developed beach destination stretches along the eastern shore from Tsovagyugh to Shorzha with numerous small cabins at Shorzha The Avan Marak Tsapatagh Hotel a Tufenkian Heritage Hotel is a luxury resort on the undeveloped southeastern shore of the lake near Tsapatagh The Armenian government pledged to reduce the growing commercialization of rest at Lake Sevan that makes it unaffordable for most citizens struggling to find other beach options during hot Armenian summers 70 In 2011 the government established public beaches in the Sevan National Park s recreational zone The first two public beaches were opened in July Some 100 000 people visited the public beaches in summer of 2011 The beaches have free parking space children s and sports playgrounds toilets medical aid stations and rescue services They are also equipped with beach couches 71 By 2014 the number of public beaches reached 11 Some 200 000 people took holiday there in 2014 72 Tufenkian Avan Marak Tsapatagh Hotel Tsapatagh Best Western Bohemian Resort The beach of Sevan town The Harsnaqar Hotel Complex View from the northeastern shore near the city of SevanSites of interest Edit The most famous cultural monument is the Sevanavank monastery located on the peninsula which was until the mid 20th century an island Another prominent monastery at the western shore is Hayravank and further south in the village of Noratus is a field of khachkars a cemetery with about 900 khachkars of different styles Additional khachkars are found at Nerkin Getashen on the south coast In 2017 a Wikipedia globe was submerged in the lake to create an artificial reef 73 Island Edit Sevan Island Sevan Island Sevan Island Sevan peninsula formerly an island in Lake Sevan Sevan peninsula in 2015Fauna EditFish Edit Sevan trout Salmo ischchan is an endemic species of the lake but it is endangered as some competitors were introduced into the lake including common whitefish Coregonus lavaretus from Lake Ladoga goldfish Carrasius auratus and crayfish Astacus leptodactylus If the Sevan trout is likely to become extinct in its home lake it seems that it will survive in Issyk Kul Lake Kyrgyzstan where it was introduced in the 1970s Due to anthropogenic impact changes have occurred in all the biological components of the lake including bacteria benthos and of course fish Thus the benthic mass increased tenfold in 1940 due to oligochaetes and chrinomices Today the former prevail and multiply the oxygen rich residue at the bottom of the lake The bojak and winter bakhtak species of the Sevan endemic trout have already disappeared The summer bakhtak occurs rarely the gegharkuni is still capable of reproducing naturally In 1980s the quantity of Sevan koghak significantly decreased Numerous reasons for this have been identified The level of the water was lowered the paths of rivers changed and the trout gegharkuni and Aestivalis species lost their natural spawning places Changes in the areas near the shore mossing disappearance of macrophyte plants also had a negative impact on the trout lays The trout spawn only in certain areas with oxygen rich underground water at the depth of 25 30 m 80 100 ft Deoxidization of the bottom is extremely detrimental for salmon which are used to more than 4 mg L of O2 In the last 10 years poaching rapidly increased which significantly reduced the number of fish in the lake Birds Edit The bird fauna of the lake and its vicinity makes over 200 species out of which 95 species are breeding 74 The lake is an important breeding ground for the Armenian gull Larus armenicus with about 4 000 5 000 pairs During migration the Lake is visited by wide variety of birds including raptors such as Montagu s harrier Circus pygargus and Steppe eagle Aquila nipalensis waterbirds such as red crested pochard Netta rufina and ferruginous duck Aythya nyroca while during the wintering period the lake hosts another set of species such as Bewick s swan Cygnus columbianus and great black headed gull Larus ichthyaetus Sometimes the lake is visited by very rare Armenian migrant lesser white fronted goose Anser erythropus Pollution EditThe rivers feeding Lake Sevan flow through densely populated settlements which produce agricultural domestic and industrial waste It significantly changes the lake s ecosystem According to a 2017 study the lake s water contains concentration of metals such as aluminium nickel arsenic cobalt and lead 75 According to Armenian environmental organization EcoLur the lake is in a critical condition because of the presence of vanadium Environmental Impact Monitoring Center an agency of the Armenian Ministry of Nature Protection reported in 2012 that the average annual concentration of vanadium 64 mg L in the samples taken from Lake Sevan exceeded the maximum permissible concentration MPC by 6 4 times while selenium 26 mg L exceeded MPC 2 6 times copper 21 mg L 2 1 times magnesium 60 mg L 1 2 times 76 A 2016 study found that mining and metallurgical industrial activities namely the Sotk gold mine on the southeastern shore of the lake caused significant heavy metal especially vanadium pollution of the Sotk and Masrik rivers in the Lake Sevan catchment basin According to the researchers it may have posed health risks to aquatic life as well as to humans at least in the case of river water used for drinking purposes 77 References EditNotes modern Armenian Գեղամա ծով Geghama tsov 24 The name is mentioned by several medieval Armenian historians including in Movses Khorenatsi s History of Armenia 25 Citations EEA 2015 p 9 a b c EEA 2015 p 7 a b c d e f g Vardanian 2009 p 78 a b O Sullivan Patrick Reynolds C S eds 2008 The Lakes Handbook Limnology and Limnetic Ecology John Wiley amp Sons p 57 ISBN 978 0 470 99926 4 Water level of Armenia s Lake Sevan rises faster than specified law official news am 2 March 2013 Archived from the original on 4 March 2016 Retrieved 7 March 2012 Lake Sevan Ramsar Sites Information Service Retrieved 25 April 2018 a b c Babayan et al 2006 p 347 Babayan et al 2006 p 348 Sevan ot urartsk sunia ozero Pospelov Evgeniy in Russian 1998 Geograficheskie nazvaniya mira Geograficheskie Nazvaniia Mira Geographic names of the world in Russian Moscow p 160 ISBN 5 89216 029 7 Kirillova Yulia M 1969 Sevan ot Siunna strana Armeniya otkrytyj muzej in Russian Iskusstvo p 28 Urartijcam obyazano svoim proishozhdeniem slovo Sevan ot Siunna strana ozernaya Murzayev Ed M 1984 Slovar narodnyh geograficheskih terminov in Russian Mysl p 112 Vne ryada Sevan ozero v Armenii imya kotorogo voshodit k urartskomu gumna ozero a b Avetisyan 1979 pp 86 87 Rene Grousset The Empire of the Steppes A History of Central Asia Rutgers University Press 1970 p 348 ISBN 0 8135 1304 9 a b Sevan Encyclopaedia Britannica Vol 12 11th ed 1911 p 192 a b Massalski Wladyslaw in Russian 1892 Gokcha Brockhaus and Efron Encyclopedic Dictionary Volume X in Russian pp 39 40 Semenov Petr Petrovic 1873 Geograficesko statisticeskij slovarʹ Rossijskoj Imperii Pavasterort Sjatra Kasy Volume 4 in Russian Bezobrazov i komp p 532 Sevanga ozero Erivanskoj g ii Novobayazetskago u sm Gokchinskoe Nadezhdin P 1869 Priroda i lyudi na Kavkazѣ i za Kavkazom in Russian Saint Petersburg V Demakov Typography p 230 Gyog chajskoe ozero sinyaya voda po armyanski Sevanga est samoe znachitelnoe v cѣlom Zakavkazskom kraѣ Lynch H F B 1896 The Ascent of Mount Ararat Scribner s Magazine 19 215 Ararat rises from the table land of Armenia between the Black and Caspian Seas in the country comprised within a triangle between the lakes of Sevanga Urumia and Van Francis Rawdon Chesney 1850 The expedition for the survey of the rivers Euphrates and Tigris London Longman Brown Green and Longmans p 763 Ghokhcha Gouktcha or Sevanga lake in Armenia Baer Karl M Lukina Tatyana A 1984 Kaspijskaya ekspediciya K M Bera 1853 1857 gg dnevniki i materialy Caspiran Encyclopedia of K M Baer 1853 1857 Diary and Materials in Russian Leningrad Nauka p 532 Sevang arm sev vang chernyj monastyr Ivanovsky A A in Russian 1911 Po Zakavkazyu arheologicheskie nablyudeniya i issledovaniya 1893 1894 i 1896 gg Through the Transcaucasia archeological observations and studies in 1893 1894 and 1896 in Russian Moscow Mamontov Typography p 30 Geographic characteristic of the Republic of Armenia PDF armstat am National Statistical Service of Republic of Armenia Sevan is adornment of nature of the Republic of Armenia the ancient name is Geghama sea Avakian Arra S 1998 Van Armenia A Journey Through History Electric Press p 3 ISBN 978 0 916919 24 5 Sevan Geghama Avetisyan 1979 p 310 Գեղամա ծով Translated as lake of Geḷam by Robert W Thomson see Thomson Robert W 1980 Moses Khorenats i History of the Armenians 2nd ed Harvard University Press p 185 a b Bryce James 1878 Transcaucasia and Ararat Being Notes of a Vacation Tour in Autumn of 1876 3rd ed London Macmillan and Co p 168 the lake which the Russians call Goktcha a corruption of the Tartar name which means blue lake and the natives Sevan the Lychnitis of the ancients Toumanoff Cyrille 1963 Studies in Christian Caucasian history Georgetown University Press p 33 Thospitis Mantiane and Lychnitis or as they are now called Van Urmia and Sevan Smith William 1854 LYCHNI TIS Dictionary of Greek and Roman Geography London view online Gruusia Georgian eki ee Institute of the Estonian Language Gelakunis ţba გელაქუნის ტბა Sewan h2 AM გელაქუნი gelakuni in Georgian National Parliamentary Library of Georgia The Travels of Sir John Chardin into Persia and the East Indies London 1686 pp247 248 Sykes Sir Percy 2013 A History Of Persia Vol 2 Taylor amp Francis p 317 ISBN 9781136525971 The Dispute about Gokcha and its Seizure by Russia 1825 The treaty of Gulistan had been so vaguely worded that three districts lying between Erivan and the Gokcha Lake the most important of which was Gokcha remained in dispute Bosworth C E 1986 Arran Encyclopaedia Iranica Lake Sevan later Turkish Gokce Woods John E 1999 The Aqquyunlu Clan Confederation Empire University of Utah Press ISBN 978 0 87480 565 9 Lake Gokce Sevan in Armenia Allen William Edward David Muratoff Paul 1953 Caucasian Battlefields A History of the Wars on the Turco Caucasian Border 1828 1921 Cambridge University Press p 9 ISBN 978 1 108 01335 2 Lake Sevan A Sevan T Gok cay Blue water Lang David Marshall 1980 Armenia cradle of civilization Boston Allen amp Unwin p 28 ISBN 9780049560093 Rather different is the character of Lake Sevan known in Turkish as Gokche or the Blue Lake von der Osten Hans Henning 1927 Explorations in Hittite Asia Minor A Preliminary Report University of Chicago Press p 144 Schutz E 1998 Armeno Turcica Selected Studies Indiana University Research Institute for Inner Asian Studies p 273 ISBN 9780933070431 but also on the Armenians of the Persian metropolis Isfahan the tumen of Nakhichevan the Gokche Sec Lake Sevan Mill James 1858 The history of British India In 10 vol Madden p 152 It had gone farther and had occupied a strip of land on the north west of the Gokcha Lake belonging by its own admission to Persia Freshfield Douglas William 1869 Travels in the Central Caucasus and Bashan Including Visits to Ararat and Tabreez and Ascents of Kazbek and Elbruz Longmans Green amp Company p 118 119 For some distance we bore to the right with but little descent until presently as much of the big Gokcha lake as the mists did not enshroud came into sight Woolf Greg 2007 Ancient civilizations the illustrated guide to belief mythology and art Barnes amp Noble p 129 ISBN 978 1 4351 0121 0 Lakes Sevan Urmia and Van are considered by Armenians to be their three seas J R Russell Zoroastrianism in Armenia Harvard University Press 1987 P 1 2 Encyclopaedia of Islam Leiden BRILL 1986 Vol I P 634 Robert H Hewsen The Geography of Armenia The Armenian People From Ancient to Modern Times The Dynastic Periods From Antiquity to the Fourteenth Century Edited by Richard G Hovannisian St Martin s Press 1997 Vol I P 8 10 Papajian Sarkis 1974 A brief history of Armenia Fresno California Armenian Evangelical Union of North America p 2 Historic Armenia has three great lakes Sevan Van and Urmia Mouradian George 1995 Armenian infotext Bookshelf Publishers p 185 ISBN 978 0 9634509 2 0 Urmia Lake one of the three large lakes of ancient Armenia the other two being Lake Van and Lake Sevan Krikorian Robert Masih Joseph 1999 Armenia At the Crossroads Routledge p 2 ISBN 978 1 134 41218 1 The water level of Lake Sevan the jewel of Armenia was dropping precipitously Mkrtchyan Gayane 27 December 2013 Lake Concerns Group warns that Armenia s Jewel could be endangered by carelessness ArmeniaNow Johnson Jerry L 2000 Crossing Borders confronting History Intercultural Adjustment in a Post Cold War World University Press of America p 72 ISBN 978 0 7618 1536 5 Armenians consider Lake Sevan a jewel of their country Babayan et al 2006 p 357 Հայաստանի Հանրապետության օրենքը Սևանա լճի մասին Republic of Armenia Law on Lake Sevan parliament am in Armenian 15 March 2001 The Travels of Sir John Chardin into Persia and the East Indies London 1686 pp247 248 Parrot Friedrich 2016 1846 Journey to Ararat Translated by William Desborough Cooley Introduction by Pietro A Shakarian London Gomidas Institute p 75 ISBN 978 1 909382 24 4 a b c d Babayan et al 2006 p 354 Vardanian 2009 p 79 Vardanian 2009 p 83 1961 1981 the Complex of Hydraulic Works for Transfer of the Arpa and Yeghegis Arpa Sevan 1968 1980 Construction of Tunnel No 2 and of Arpa Sevan Conduit Arpa Sevan a b Babayan et al 2006 p 356 Melkonyan Ani 2015 11 01 Climate change impact on water resources and crop production in Armenia Agricultural Water Management 161 86 101 doi 10 1016 j agwat 2015 07 004 ISSN 0378 3774 a b Makaryan Marieta 27 April 2004 Ավարտվեց Որոտան Արփա թունելի շինարարությունը Construction of Vorotan Arpa tunnel completed Azg in Armenian 1995 2003 Complex of Hydraulic Structures for Diversion of the Vorotan River Runoff to the Basin of the Arpa River Arpa Sevan Ավարտվեց Որոտան Արփա թունելի շինարարությունը Azg in Armenian 27 April 2004 Archived from the original on 12 November 2015 Retrieved 7 June 2013 Harutyunyan Arpi 29 June 2007 Sevan Rising Lake Sevan s recovery quicker than expected ArmeniaNow Shoghikyan Hovhannes 6 October 2010 Սեւանա լճի մակարդակը այս տարի բարձրացել է 56 սանտիմետրով azatutyun am in Armenian Radio Free Europe Radio Liberty Water report from 2019 Nov 20 PDF ՀՀ Գեղարքունիքի մարզի առկա և մշտական բնակչությունն ըստ վարչատարածքային միավորների և սեռի PDF armstat am in Armenian a b Holding Deirdre 2014 Armenia with Nagorno Karabagh 4th ed Bradt Travel Guides p 202 ISBN 978 1 84162 555 3 Bonner Raymond 9 August 1993 Yerevan Journal Landlocked and Alone Armenia Fears the Winter The New York Times The beach at Lake Sevan 40 miles east the capital would normally be packed this time of the year Chilingarian Elina 8 July 2011 Public Beaches Available at Armenia s Lake azatutyun am Radio Free Europe Radio Liberty Available Blue Pearl Public beaches proved popular with Lake Sevan holidaymakers ArmeniaNow 30 September 2011 The holiday season opened along with the public beaches of Sevan Lake Public Television of Armenia 5 July 2015 CEE Newsletter October 2017 Full Meta meta wikimedia org Retrieved 22 April 2020 Aghababyan K Khanamirian G 2017 Baseline study of the Birds at Lake Sevan for further monitoring Lake Sevan National Park Avalyan R E Aghajanyan E A Khosrovyan A Atoyants A L Simonyan A E Aroutiounian R M August 2017 Assessment of mutagenicity of water from Lake Sevan Armenia with application of Tradescantia clone 02 Mutation Research 800 802 8 13 8 13 doi 10 1016 j mrfmmm 2017 03 006 PMID 28431268 Sevan Lake 2012 ecolur org Ecolur Network Gevorgyan Gor A Mamyan Armine S Hambaryan Lusine R Khudaverdyan Surik Kh Vaseashta Ashok 2016 Environmental Risk Assessment of Heavy Metal Pollution in Armenian River Ecosystems Case Study of Lake Sevan and Debed River Catchment Basins Polish Journal of Environmental Studies 25 6 2387 2399 doi 10 15244 pjoes 63734 PDFBibliography EditVardanian Trahel 2009 The Hydro chemical changes of Lake Sevan after the artificial lowering of the water level In Bahadir Ali Mufit Duca Gheorghe eds The Role of Ecological Chemistry in Pollution Research and Sustainable Development Springer Science amp Business Media pp 77 84 ISBN 978 90 481 2901 0 Babayan Araik Hakobyan Susanna Jenderedjian Karen Muradyan Siranush Voskanov Mikhail 2006 Lake Sevan Experience and Lessons Learned Brief PDF ilec or jp International Lake Environment Committee Foundation pp 347 362 Archived from the original PDF on March 14 2012 Շրջակա միջավայրի տեղեկատվական միասնական համակարգ Սևանա լճի համար in Armenian Yerevan European Environment Agency Shared Environment Information System 2015 Archived from the original PDF on 5 March 2016 Retrieved 16 November 2015 Avetisyan Kamsar in Armenian 1979 Հայրենագիտական Էտյուդներ Notes on Armenian Studies in Armenian Yerevan Sovetakan grogh Portal Lakes Retrieved from https en wikipedia org w index php title Lake Sevan amp oldid 1134656679, wikipedia, wiki, book, books, library,

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