Attēls:Columbia River Gorge landscape.jpg - Vikipēdija

# Attēls:Columbia River Gorge landscape.jpg

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This is a photograph taken along the Columbia River Gorge, at the southern edge of the Gifford Pinchot National Forest. The Forest is located in southwest Washington State, and now contains 1,312,000 acres and includes the 110,000-acre Mount St. Helens National Volcanic Monument established by Congress in 1982. Because snowpack is a major water resource in the Western U.S, an accurate forecast of snow amounts is essential to managing the water supply in that region. This research looks at how El Nino/Southern Oscillation cycles could be used as a factor to predict snowpack evolution in the Columbia and Colorado River basins.

- Credit: Roger Peterson, US Forest Service, Gifford Pinchot National Forest

- Source: http://www.gsfc.nasa.gov/topstory/2003/0210snowpack.html

This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.

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Secondary source: http://en.wikipedia.org/wiki/Image:Columbia_River_Gorge.jpg

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