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Kara-Bogaz-Gol - restoration of previous water levels after 1992 (Turkmenistan, Caspian Sea)
Kara-Bogaz-Gol is a lowland area that forms a highly saline bay on the east side of the Caspian Sea, in Turkmenistan. In Soviet times it was decided to set up a dam to block the flow of saline water from the bay to the C...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Kara-Bogaz-Gol - water level variation over time
Comparing a series of satellite images from different periods a Californian hydrologist discovered in 1983 that a huge white spot had taken the place of the vast Kara-Bogaz- Gol (literally “dark gullet” in Turkmen) in th...
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Oil production and forecasts - Kazakhstan, Azerbaijan and Turkmenistan
For the Caspian Sea countries of Azerbaijan, Kazakhstan and Turkmenistan, the extraction of oil represents a significant resource, and the production has been increasing since independence. Numbers should however be trea...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Ice cover on the North Caspian Sea
Higher winter temperatures, possibly related to changes in global climate observed in recent years, have caused thinner ice coverage and restricted the traditional reproduction grounds of the Caspian seal in the shallow ...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Caviar imports to Japan, European Union and United States
The Caspian area is the world’s main producer of wild caviar (83% in 2003) and supplies the three largest markets, the European Union, Japan and the USA. The construction of several hydroelectric power plants and dams al...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Caspian sea climate, mean annual temperature and precipitation
With the Caspian Sea's north-south alignment, stretching over a distance of approximately 10 degrees, the water body crosses several different climatic regions. The northernmost regions, with Russia and Kazakhstan are ch...
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Pollutants in sediments of the Caspian Sea (pesticides, nickel and chromium)
Sampled sediments in the Caspian Sea show that the accumulation is at its worst in the south and southwestern shores of this inland sea, off the shores of Iran and Azerbaijan. Sampled pollutants presented in this map are...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Transportation projects converging on the Caspian Sea
For many years, coastal navigation has connected republics in the former Soviet Union. It used the only outlet from the Caspian, the Volga-Don canal, which connects the Black Sea and the Russian canal system to the Balti...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Population density and urban centers in the Caspian Sea region
Apart from two large urban areas – Baku-Sumgait and Makhachkala-Kaspiisk – and the Iranian coast on the southern shore, a very densely populated coastal strip where one agglomeration leads into the next, most of the popu...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Variations in sea level for the Caspian Sea (1840-2004)
The Caspian Sea has been endoreic – inwardly draining, without any outlet – since the Pliocene epoch (about 5 million years ago), prompting some specialists to treat it as the world’s largest lake. Studies of its geomorp...
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Selected impacts of climate change in the Caspian Sea region
As the concentration of greenhouse gases in the atmosphere increases, the temperature in the European part of the Caspian Sea region will continue to rise, at least at first. Some researchers have recently expressed fear...
01 Oct 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Water flow from the Caspian Sea to the bay of Kara-Bogaz-Gol, 1930-2000
Kara-Bogaz-Gol is a lowland area that forms a highly saline bay on the east side of the Caspian Sea, in Turkmenistan. Soviet leaders maintained that this was “a useless caldron for evaporation, an insatiable mouth swallo...
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Illegal trade of caviar, 2000-2005
It is not clear to what extent the temporary ban on caviar exports has boosted well established illegal domestic and international trafficking, obviously not accounted for in the official figures. The illegal trade in ca...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Caspian Sea - salinity
The Caspian Sea has internal drainage, which means that it does not have an outlet to the World Ocean. All water entering the sea accumulates or evaporates. The sea surface salinity in the sea exhibits a gradient, with t...
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Population by administrative region, Caspian Sea region
Several countries and provinces – Iran, Daghestan, Turkmenistan and parts of Azerbaijan – still enjoy very high population growth rates (in excess of 10 per 1,000). Many of the population tends to gravitate towards the C...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Potential environmental hazards in the Caspian Sea Region
Oil slicks glittering on the surface of the sea and thousands of hectares of soil penetrated by oil leaking from abandoned wells are just part of the pollution that people living around the Caspian Sea must endure. In ad...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Infant mortality in the Caspian Sea region
Even if over the last two decades, or perhaps longer, the fertility rate has dropped significantly, the authorities nevertheless have to cope with all the health, education and employment problems associated with a rapid...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Oil spill off the coast of Apsheron peninsula
Thousands of hectares of soil on Azerbaijan’s Apsheron peninsula are unsuitable for agricultural use due to oil spills. The largest of these oil spills happened in May 1996. Oil extraction is happening off shore, in the ...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Kara-Bogaz-Gol, desertification while dammed 1980-1992 (Caspian Sea, Turkmenistan)
Kara-Bogaz-Gol is a lowland area that forms a highly saline bay on the east side of the Caspian Sea, in Turkmenistan. In Soviet times it was decided to set up a dam to block the flow of saline water from the bay to the C...
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Total trade in sturgeon caviar, 1999-2003
The caviar trade reportedly fell by about 70% between 1999 and 2003 but there is still every reason to monitor development of the sturgeon population and keep it on the list of endangered species. However it is not clear...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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