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Archive for Mountains

Sediments in Lake Erie, USA

42.0N 81.3W

April 23rd, 2013 Category: Lakes, Mountains

USA – April 22nd, 2013

Sediments give the waters of Lake Erie a greenish tinge, in comparison to the deeper blue of the other North American Great Lakes. Despite some cloud cover, the outline of the northern section of Lake Michigan is visible due to superimposed borders recreated in the satellite imagery. Visible further south are the ridges of the Appalachian Mountains, which stretch from the southern USA to the northeastern part of the country.

Climate Change and Glaciers of Olympic Mountains, USA – April 1st, 2013

47.9N 124W

April 1st, 2013 Category: Climate Change, Image of the day, Mountains

USA and Canada – March 30th, 2013

Snow rests atop mountain ranges in Washington State, USA (below), and British Columbia (upper left) and Alberta (upper right), Canada. Visible as a circular area of snow near the coast are the Olympic Mountains, a mountain range on the Olympic Peninsula of western Washington.

The mountains, part of the Pacific Coast Ranges, are not especially high РMount Olympus is the highest at 7,962 ft (2,427 m); however, the eastern slopes rise out of Puget Sound and the western slopes are separated from the Pacific Ocean by the 20 to 35 km (12 to 22 mi) wide Pacific Ocean coastal plain. There are glaciers within the range; however, they have shrunk rapidly in just decades, stark evidence of the ongoing impact of human-driven climate change.

The Sierra Nevada and Climate Change Issues – March 23rd, 2013

38.5N 120.2W

March 23rd, 2013 Category: Climate Change, Image of the day, Mountains

USA – March 22nd, 2013

Population growth and climate change are among the most significant threats facing the Sierra Nevada, one of the fastest growing regions in California. The mountain range can be seen here, flanking California’s Great Central Valley. Sprawling development is increasing vehicle miles and greenhouse gas emissions, destroying rare habitat and agricultural lands, and straining natural resources upon which our communities depend. Climate change compounds these problems and contributes a new host of concerns for snowpack levels, water management and recreation, wildlife, and the frequency and severity of fires.

Veil of Dust Over Libya’s Green Mountain

32.6N 21.2E

March 17th, 2013 Category: Dust Storms, Mountains

Libya – March 8th, 2013

Libya’s “Green Mountain”, the Jebel al-Akhdar, can be seen through a plume of dust that blows across the coast and over the Mediterranean Sea. Dust blowing over the Mediterranean is a rather common phenomenon, as strong winds pick up particles from the Sahara Desert and carry them northward over the sea.

Smoke Amidst Sierra Madre del Sur Mountains, Mexico

17.3N 101.9W

March 6th, 2013 Category: Fires, Mountains

Mexico – March 5th, 2013

Smoke from fires ablaze in southern Mexico rests among the peaks of the Sierra Madre del Sur mountain range and also drifts over the Pacific Ocean near the Isthmus of Tehuantepec (lower right). Partially hidden by the smoke, the lush green high-altitude forests of the Sierra Madre del Sur are part of some of Mexico’s last remaining large tracts of relatively undisturbed forest.