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Archive for October 13th, 2009

Huge Dust Storm Blows Off Coast of Turkey

40.7N 40.3E

October 13th, 2009 Category: Dust Storms

Dust off Northern Coast of Turkey - October 13th, 2009

Dust off Northern Coast of Turkey - October 13th, 2009

A plume of dust originating in southern Turkey archs northwards, across the country and over the Black Sea, into Georgia and southern Russia. The plume fans out as it moves to the north, covering much of the eastern end of the sea.

In the full image, dust hovers over Syria as well. Although it remains clear of Lake Assad, it seems to follow the path of the Euphrates river, past its confluence with the Khabur River, towards Iraq.

The Wasatch Range Between the Great Salt and Bear Lakes, Utah, USA

41.9N 111.3W

October 13th, 2009 Category: Lakes

Utah, USA - July 26th, 2009

Utah, USA - July 26th, 2009

The Wasatch Range fills the landscape between the Great Salt Lake (left) and Bear Lake. This mountain range stretches about 160 miles (260 km) from the Utah-Idaho border, south through central Utah in the western United States. It is generally considered the western edge of the greater Rocky Mountains, and the eastern edge of the Great Basin region.

The northern extension of the Wasatch Range, the Bear River Mountains, extends just into Idaho, constituting all of the Wasatch Range in that state.

Bear Lake is located near that northern extension of the mountains. It is a natural freshwater lake on the Utah-Idaho border and the second largest natural freshwater lake in Utah.

Bear Lake has been called the “Caribbean of the Rockies” for its unique turquoise-blue color, the result of suspended limestone deposits in the water.

The waters of the Great Salt Lake also have interesting color properties, as the top half of the lake appears brown while the bottom half appears dark green. This is due to the Lucin Cutoff, a railroad line that runs across the lake on a mostly-solid causeway. As it has only three 100-foot (30 m) breaches, the mixing of the lake waters is restricted. This has caused the northwest arm, Gunnison Bay, to become much saltier than the rest of the lake.

Wide-swath Image of the Strait of Gibraltar – October 13th, 2009

35.9N 5.5W

October 13th, 2009 Category: Image of the day

Strait of Gibraltar - August 27th, 2009

Strait of Gibraltar - August 27th, 2009

Close-up of strait

Close-up of strait

Moroccan coast

Moroccan coast

The main image here is an orthorectified wide-swath ASAR (radar) image of southern Spain and northern Morocco. It is possible to see a larger area as the width of the swath is five times that of a normal IMM image.

The first close-up focuses on the northeastern coast of Morocco near the port city of Al Hoceima, by the center of the Rif Mountains.

The second close-up focuses on the Strait of Gibraltar. Ships can be seen moving through the strait and clustered around the port city of La Línea de la Concepción, on the eastern isthmus of the Bay of Gibraltar, and the nearby British overseas territory of Gibraltar (right edge).

Tropical Storm Parma (19W) Hits Vietnam

October 13th, 2009 Category: Tropical Storms

Tropical Storm Parma (19W) - FAPAR - October 13th, 2009

Tropical Storm Parma (19W) - FAPAR - October 13th, 2009

Track of Parma - October 13th, 2009 © Univ. of Wisconsin

Track of Parma

Tropical Storm 19W Parma, located approximately 130 nm east-southeast of Hanoi, Vietnam, has tracked westward at 05 knots over the past six hours.

Animated multispectral satellite imagery shows a band of deep convection remains well defined on the southern periphery of Parma.

The combination of good upper level support with the system under the axis of an upper level subtropical ridge, providing good radial outflow, and interaction from land have helped to maintain the structure of this system without significant development over the past 06 hours.

Increased interaction with Vietnam will begin to hinder low level inflow, with a slow decrease in intensity over the next 24 hours. Landfall is expected around tau 24, with rapid weakening and complete dissipation by tau 36. Maximum significant wave height at 130600z is 11 feet.

Please click here for previous articles on tropical storm Parma.

Spencer Gulf and Mount Remarkable National Park, South Australia

October 13th, 2009 Category: Snapshots

Australia - September 1st, 2009

Australia - September 1st, 2009

Spencer Gulf is the westernmost of two large inlets on the southern coast of Australia, in the state of South Australia, facing the Great Australian Bight. The Gulf is 322 km (200 mi) long and 129 km (80 mi) wide at its mouth. The western shore of the gulf is the Eyre Peninsula, while the eastern side is the Yorke Peninsula.

The land west of the gulf appears quite arid, while that to the east is green and covered with vegetation and agriculture. The two dark brown areas amidst the green are mountains: Mount Brown (above) and Mount Remarkable (below). This area is protected as part of the Mount Remarkable National Park, with a surface area of more than 160 km².