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Posts tagged Great Central Valley

Fire in Sierra Nevada Foothills, California, USA – June 18th, 2013

37.3N 119.7W

June 18th, 2013 Category: Fires, Image of the day MODISTerra

USA – June 17th, 2013

A plume of smoke from a wildfire burning in the wooded foothills of the Sierra Nevada, east of California’s Great Central Valley, can be seen just to the right of the center of this image. The smoke from the fire is blowing towards the south-southeast, trailing over the valley.

Climate Change and Fires in Great Central Valley, California, USA

37.7N 121.7W

April 18th, 2013 Category: Climate Change, Fires

USA – April 17th, 2013

Although the Great Central Valley of California appears quite peaceful from above, a look at the full image reveals several fires, marked by red squares. Scientists have attributed an increase in fires in this region to factors such as extended drought, forest die-offs from insect infestation and human encroachment, while insisting that the main culprit is 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.

Great Central Valley of California and Climate Change Issues

37.3N 121.8W

March 1st, 2013 Category: Climate Change

USA – February 28th, 2013

The Central Valley of California, USA, is a vast region – about 450 miles long, averaging 50 miles wide. It is bound by mountain ranges – to the east and north stand the snow-capped Sierra Nevada and the Cascades, and to the west are the Coast Ranges, a barrier against the moister, milder climate of the Pacific Coast. The Tehachapis separate the Central Valley from the metropolitan areas to the south. Scientists have shown that global warming is placing additional stresses on water supply and use in the valley and the semi-arid parts of California.

Climate-change effects are also becoming already apparent in the state in areas with steep natural gradients in climate and species, such as the Sierra Nevada. Changes in snow/rain fractions, freeze/thaw cycles and temperature affect the availability of fresh water, with multi-billiondollar implications for California’s economy and the many ecosystem services in the affected forests and rangelands. Research has shown that shifts in snow accumulation, spring runoff, greenup, tree mortality, species migration and fire frequency are occurring; these trends and others are projected to continue (click here for more information).

Bodies of Water on Both Sides of Great Central Valley, California, USA

39.1N 120W

October 10th, 2012 Category: Lakes

USA – October 7th, 2012

Several bodies of water can be seen on both sides of the Great Central Valley in the state of California, USA. On the right side of the image are Lake Tahoe (center, right) and Pyramid Lake (above, right). Both lakes are connected by the Truckee River, which is the sole outlet of Lake Tahoe and drains part of the high Sierra Nevada, emptying into Pyramid Lake in the Great Basin. Its waters are an important source of irrigation along its valley and adjacent valleys.

In the lower left quadrant is the San Francisco Bay, a shallow, productive estuary through which water draining from approximately forty percent of California, flowing in the Sacramento and San Joaquin rivers from the Sierra Nevada mountains, enters the Pacific Ocean.

Specifically, both rivers flow into Suisun Bay, which flows through the Carquinez Strait to meet with the Napa River at the entrance to San Pablo Bay, which connects at its south end to San Francisco Bay. However, the entire group of interconnected bays is often referred to as “San Francisco Bay”.