File:Winter Trans-Alaska Pipeline-CRREL.jpg
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Summary
| Description |
English: View of the Trans-Alaska Pipeline between Fort Greeley, Alaska and Black Rapids, a region with discontinuous permafrost. The pipeline is suspended on thermosyphon piles that transport coolant via natural convection into the ground during winter to maintain frozen soil around the piling. In the summer, the convection of the coolant fluid stops. |
| Date | |
| Source | U.S. Army Cold Regions Research and Engineering Laboratory: http://www.crrel.usace.army.mil/crrel/selectedimages.html |
| Author | Stephen Flanders |
Licensing
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This file is a work of a U.S. Army soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:33, 6 January 2011 | | 280 × 138 (74 KB) | HopsonRoad | {{Information |Description={{en|1=View of the Trans-Alaska Pipeline between Fort Greeley, Alaska and Black Rapids.}} |Source=U.S. Army Cold Regions Research and Engineering Laboratory |Author=Stephen Flanders |Date=1982-03-00 |Permission= |other_versions= |
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