Siple Dome
Siple Dome Field Camp | |
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Camp | |
Siple Dome Field Camp in 2012 | |
Siple Dome Field Camp | |
Coordinates: 81°39′15″S 149°00′18″W / 81.654303°S 149.005134°W | |
Country |
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Location in Antarctica |
Siple Dome Marie Byrd Land Antarctica |
Administered by | National Science Foundation |
Established | 1996 |
Elevation | 730 m (2,400 ft) |
Population | |
• Total | Up to 60 |
Type | Seasonal |
Siple Dome (81°39′15″S 149°00′18″W / 81.65430285°S 149.0051336°WCoordinates: 81°39′15″S 149°00′18″W / 81.65430285°S 149.0051336°W) is an ice dome approximately 100 km wide and 100 km long, located 130 km east of Siple Coast in Antarctica. Charles Bentley and Robert Thomas established a "strain rosette" on this feature to determine ice movement in 1973-74. They referred to the feature as Siple Dome because of its proximity to Siple Coast.
Siple Dome ice core
The Siple Dome ice core project (79.468° S 112.086° W) was conducted by the United States National Science Foundation. The deepest ice was recovered in 1999 from 974 m, with an age of 97,600 years.[1]
It is best known for the poorly-explained steps in water isotopes during the deglacial, which are unique to this core and may indicate a rapid decrease in the surface elevation of the adjoining ice streams during the deglacial[2] and a record of atmospheric carbon dioxide.[3] The Chief Scientist was Kendrick Taylor.
In popular culture
- A documentary on climate change research associated with the Siple Dome ice core was produced by Nova: Warnings from the Ice, 1998. The documentary explains how reductions in Antarctic ice mass can raise sea level.
- Siple Dome is referenced in the song "Fall of Sipledome" by thrash metal band Testament (on their 1999 album The Gathering).
See also
References
- ↑ Brook, E. J., White, J. W., Schilla, A. S., Bender, M. L., Barnett, B., Severinghaus, J. P., ... & Steig, E. J. (2005). Timing of millennial-scale climate change at Siple Dome, West Antarctica, during the last glacial period. Quaternary Science Reviews, 24(12), 1333-1343.
- ↑ Taylor, K. C., White, J. W. C., Severinghaus, J. P., Brook, E. J., Mayewski, P. A., Alley, R. B., ... & Lamorey, G. W. (2004). Abrupt climate change around 22ka on the Siple Coast of Antarctica. Quaternary Science Reviews, 23(1), 7-15.
- ↑ Ahn, J., Wahlen, M., Deck, B. L., Brook, E. J., Mayewski, P. A., Taylor, K. C., & White, J. W. (2004). A record of atmospheric CO2 during the last 40,000 years from the Siple Dome, Antarctica ice core. Journal of Geophysical Research: Atmospheres, 109(D13)