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Posts tagged Salt Lakes

Troodos Mountains and Limassol Salt Lake, Cyprus

34.6N 32.9E

May 9th, 2010 Category: Lakes, Mountains

Cyprus - April 28th, 2010

Cyprus - April 28th, 2010

The physical relief of the island of Cyprus is dominated by two mountain ranges, the Troodos Mountains and the smaller Kyrenia Range, and the central plain they encompass, the Mesaoria. The Troodos Mountains cover most of the southern and western portions of the island and account for roughly half its area, appearing dark green here.

Also of note, although better visible in the full image, is Limassol salt lake (also known as Akrotiri salt lake), the largest inland body of water in Cyprus. It is located on a peninsula on the southern coast of the island and appears bright green in color.

The lake lies due south-east of the sprawling city of Limassol and measures 10.65 km². Its lowest point is 2.7m below sea level and at its deepest point the water depth measures 1m. Geologists hypothesize the lake was formed over the gradual joining of an offshore islet off the southern coast of Cyprus.

The lake itself is considered to be one of the eastern Mediterranean’s most important wetlands. The fact that the water level over 50% of the lake is less than 30 cm deep attracts thousands of wading birds to use it as a stopover during the migration seasons. Birdlife International estimates that between 2,000 and 20,000 Greater Flamingos (Phoenicopterus roseus) spend the winter months on the lake.

Sediments from Chubut River South of Valdes Peninsula, Argentina

43.2S 65W

April 17th, 2010 Category: Lakes, Rivers

Argentina - February 25th, 2010

Argentina - February 25th, 2010

Sediments spill from the Chubut River and line the coast of Argentina in the Patagonia region. Further offshore, near the right edge of the image, a greenish stain is visible in the water; this may be caused by a faint phytoplankton bloom rather than sediments.

The river flows through Chubut Province for approximately 800 kilometres before emptying in the Atlantic Ocean at Engaño Bay near Rawson. The river is generally shallow and its water flow can vary from 4 to 30 m³/s between drought and flood. Flooding makes the lands beside the river fertile and important for agriculture.

North of the rivermouth is the Valdes Peninsula (Spanish: Península Valdés), in the north east of Chubut Province. Most of the peninsula is barren land, although there are some salt lakes, visible here. The largest of these lakes is at an elevation of about 40 m below sea level.

Greenish Waters of the Gulf of Tunis, Tunisia

36.8N 10.1E

September 30th, 2009 Category: Lakes

Tunisia - September 1st, 2009

Tunisia - September 1st, 2009

The peninsula of Cap Bon in far northeastern Tunisia is flanked by the Gulf of Tunis to the west and the Gulf of Hammamet to the east.  Tunis, the capital city of Tunisia, appears here as a grey area at the southern edge of the Gulf of Tunis.

In this image, the Gulf of Tunis is greenish in color from algal growth or sediments. The rest of the visible shoreline, including that of the Gulf of Hammamet, is mostly clear.

Moving inland south of the peninsula is a white salt lake called Sebkhel de Sidi El Hani. The site, the third-largest salt-lake in Tunisia, is located 25 km south-west of Sousse and 20 km east-south-east of Kairouan.

It usually dries out in summer, but occasionally retains water all year. Salinity is very high and salt crystals sometimes remain on the substrate even when there is water in the lake.