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Vital Caspian Graphics
Vital Caspian Graphics
In recent years the Caspian Sea has been the focus of increased global attention. The world-wide decline in oil and gas reserves and the corresponding rise in the price of hydrocarbon derivatives have heightened interest in an area where there is still growth potential in oil and gas exploration. In addition, the region presents a wealth of opp ...
Available online at: http://www.grida.no/publications/vg/caspian
Comb-jelly (Mnemiopsis leidyi) spreading through the Caspian Sea (invasive species)
The comb jelly (Mnemiopsis leidyi) is well adapted to the habitat (salinity, temperature, and food range) and reproduces faster than endemic species. As it eats the same food as them, it has had a drastic effect on their...
04 Oct 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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
Energy production, consumption and export - Kazakhstan and Azerbaijan
The land-based activities of the oil and gas industry in Kazakhstan and Azerbaijan have had a much more severe impact on the environment than marine activity. In particular the growth in hydrocarbon-related activity has ...
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
Discharge of selected pollutants
Nitrogen and phosphorous represents nutrients that can be seen as pollutants, as large concentations of those increase eutrophication. Nutrients are present in primarily commercial fertilisers and in sewage. A measure of...
29 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
Oil pollution in Azerbaijan
There are hundreds of abandoned oil wells in Azerbaijan, and thousands in Kazakhstan, many of which have been submerged by the rising sea. There are reports of big leaks into the water, killing waterfowl and fish. Thousa...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
How the comb-jelly (Mnemiopsis leidyi) is spreading through European seas (invasive species)
The most threatening event for the Caspian ecosystem was the arrival of the North American comb jelly (Mnemiopsis leidyi). It was brought accidentally to the Caspian in the ballast water of oil tankers. Invasive and alie...
29 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
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