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Posts tagged Lake Van

Seasonal Changes in Sediments in Lake Van, Turkey

38.6N 42.9E

April 29th, 2013 Category: Lakes, Sediments

Turkey – April 28th, 2013

The varved sediments (the layer or series of layers of sediment deposited in a body of still water in one year) of Lake Van (the greyish white salt lake in the upper right quadrant), in Turkey, provide a high-quality continental archive of seasonal to decadal-scale climate variability. Remotely-sensed total suspended-matter concentrations, validated by contemporaneous water-column sampling, show great temporal and lateral variations (whitings and turbidity plumes).

From 2006 to 2009, sequential sediment traps recorded high particle fluxes during spring and fall, medium fluxes during summer, and almost zero flux during winter. Some fluxes are controlled by river discharge (precipitation and snowmelt) during spring, by high productivity during summer, and by river discharge (precipitation before snowfall starts) and mixing during fall (click here for more information).

Borders Feature Revealing Lakes Near Turkey

40.3N 45.3E

February 10th, 2013 Category: Clouds, Lakes

Iran, Turkey, Armenia – January 27th, 2013

This cloud-covered image highlights the use of the Chelys Satellite Rapid Response System (SRRS) “borders” feature, which overlays countries’ boundaries on satellite images. Here, Iran, Turkey, Georgia, Russia and Azerbaijan can be observed counterclockwise from the bottom right, with Armenia in the center. While Lake Van, in Turkey, is partially visible through the clouds, the borders feature shows the location of other lakes that would be hidden: Lake Urmia (bottom), in Iran, Lake Sevan (center), in Armenia, and the Mingachevir Reservoir (upper right), in Azerbaijan.

Dust Over Iraq and Colors of Lakes Van and Urmia – June 4th, 2012

37.1N 44.4E

June 4th, 2012 Category: Dust Storms, Image of the day, Lakes, Rivers

Iraq, Iran, Turkey - June 1st, 2012

This image focuses on two large bodies of water: Lake Van, in Turkey (upper left) and Lake Urmia, in Iran (right). Lake Van usually appears dark blue due to its depth, with some green from sediments and algal growth in its shallower sections. Lake Urmia, however, changes color frequently (click here for more images) as it is relatively shallow and subject to more fluctuations in salt/mineral content and algal growth.

A third large lake can be seen upon opening the full image: the teardrop-shaped Lake Tharthar, in Iraq. Dust can be seen blowing near the lake, over the valley through which the Tigris and Euphrates Rivers flow.

Dust Between Iraq, Lake Van and the Caspian Sea

38.3N 44.3E

May 22nd, 2012 Category: Dust Storms, Lakes

Caspian Sea - May 21st, 2012

Dust blows northward from Iraq towards Turkey and northwestern Iran. Here, two main clouds of dust can be observed: one between Lake Van (left edge) and the Caspian Sea (right edge), and the other near the Iraq-Iran border, east of the Tigris and Euphrates River Valley. While the land below those two main dust clouds is almost completely obscured, Lake Tharthar can be seen through a thinner veil of dust at the lower left.


Mediterranean Features by Turkey and Egypt

33.7N 29.7E

May 5th, 2012 Category: Lakes, Rivers

Turkey - April 28th, 2012

This image stretches from Turkey (above), across the Mediterranean Sea to Egypt (lower right) and Libya (lower left). The large islands in the Mediterranean are Cyprus (right) and Crete (left). North of Crete are many smaller Aegean Islands, belonging to both Turkey and Greece.

Other important bodies of water in the image include the Nile River and Nile Delta. Located just east of the delta is the Suez Canal, connecting the Mediterranean Sea to the Red Sea. To the north, in Turkey, are several lakes in the Turkish Lakes Region. The largest two are the bright turquoise Lake Eğirdir (left) and Lake Beyşehir (right). To their northeast is Lake Van, appearing as a bright white salt flat.