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Archive for November 3rd, 2009

Border Area of Morocco, Western Sahara and Mauritania

27.6N 10.8W

November 3rd, 2009 Category: Snapshots

Morocco - October 4th, 2009

Morocco - October 4th, 2009

Fuerteventura (below) and Lanzarote (above), two of the Canary Islands, are visible off the coast of Africa near the border between Morocco (north) and Western Sahara (south).

The terrain of Western Sahara consists mainly of desert flatlands, although large areas of rocky or sandy surfaces rise to small mountains in the south and northeast. Here, one such ridge of mountains is visible just above the country’s border with Mauritania, whose terrain occupies the lower right quadrant.

This land in Mauritania is part of the Saharan Zone and has little vegetation. Some mountainous areas with a water source support small-leafed and spiny plants and scrub grasses suitable for camels. Cultivation is limited to oases, where date palms are used to shade other crops from the sun.

The Caldera of the Okmok Volcano, Alaska, USA

53.4N 168.1W

November 3rd, 2009 Category: Volcanoes

Alaska, USA - October 22nd, 2009

Alaska, USA - October 22nd, 2009

The circular caldera of Mount Okmok occupies much of Umnak Island, one of Alaska’s Aleutian Islands in the USA.  The caldera is 5.8 mile (9.3 km) wide, cutting across the top of a large shield volcano.

The caldera rim can be observed in detail in this orthorectified image. Of particular interest are an eroded section through which the lake that once filled the caldera drained, visible around the 12 o’clock position, and Mount Okmok itself, the highest point of the volcano at over 3400 feet, visible around 10 o’clock.

European Countries Near the Alps and the Adriatic Sea

45.2N 15.6E

November 3rd, 2009 Category: Lakes

Hungary, Croatia and Serbia - September 24th, 2009

Hungary, Croatia and Serbia - September 24th, 2009

Several countries in Europe can be observed here, north of the Adriatic Sea. The countries along the shores of the sea include Italy below, Croatia along most of the upper shores, and Montenegro to the right after the Croatian islands. Sediments swirl outwards from rivermouths along the coast of Italy, while the shoreline of Croatia and its islands is mostly clear.

Bordering Croatia, in dark green areas of abundant vegetation, are Bosnia and Herezgovina to the east and Slovenia to the west. Hungary also borders Croatia to the north, although the landscape here is greenish-brown in color. Lake Balaton also stands out amidst the Hungarian terrain, its waters a bright turquoise green.

To the west of Hungary lies Austria. The Alps, somewhat snow-covered in this image taken at the beginning of Autumn, are visible here in Austria and northern Italy.

The Baikal and Barguzin Ranges Around the Northern End of Lake Baikal, Russia – November 3rd, 2009

55.7N 109.5E

November 3rd, 2009 Category: Image of the day, Lakes

Russia - October 5th, 2009

Russia - October 5th, 2009

The northern end of Lake Baikal in southern Siberia, Russia, is surrounded by the Baikal Mountains to the west and north and the Barguzin Range to the east. In this image, taken in early autumn, the mountains are capped with snow although the lake is not yet frozen over.

The Baikal Mountains or Baikal Range rise steeply over the northwestern shore of Lake Baikal. Their highest peak is Chersky Mountain at 2572 m. The Baikal Mountains, along with the Eastern Sayan Mountains, provide the southern boundary of the Central Siberian Plateau.

The Barguzin Range has a length of 280 km, and heights of up to 2,840 m. It is mostly covered by larch taiga. The range bounds the Barguzin Valley from the northwest. A part of the Barguzin Preserve is located on the Western slopes of the range.

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