Thermal Regime of Permafrost in Alaska and Predicted Global Warming
Publication: Journal of Cold Regions Engineering
Volume 4, Issue 1
Abstract
The mean surface temperature of permafrost in Alaska has warmed locally as much as 4° C during the last century although some areas show little or no indication of a warming or cooling. There is evidence for a recent cooling, since 1983, south of Prudhoe Bay to the Brooks Range. South of the Yukon River drainage and on the south side of the Seward Peninsula, permafrost temperatures are generally within a few degree's of thawing. There is a general consensus among scientists for a climatic warming of several degrees in surface air temperatures by the middle of the next century. If this warming occurs, there will be widespread thawing of the permafrost south of the Yukon River drainage and on the south side of the Seward Peninsula in Alaska. In general, thawing of warm discontinuous permafrost would also be expected in other areas of the polar regions. This potential thawing of the permafrost could create severe environmental and engineering problems.
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References
1.
Ellsaesser, H. W., et al. (1986). “Global climatic trends as revealed by the recorded data.” Rev. Geophys. Space Phys., 24(4), 745–792.
2.
Hamilton, T. D. (1965). “Alaskan temperature fluctuations and trends: Analysis of recorded data.” Arctic, 18(2), 105–117.
3.
Hansen, J., and Lebedeff, S. (1987). “Global trends of measured surface air temperature.” J. Geophys. Res., 92(11), 13, 345–313, 372.
4.
Hoffman, P. A., and Osterkamp, T. E. (1986). “Bar graphs of climatological data for Alaskan stations: Temperature, snowfall, and thawing and freezing degree days for 1949–1982.” Contract Report 84 NX 302 F23181, Alaska Dept. of Transp. and Public Facility, Fairbanks, Alaska.
5.
Lachenbruch, A. H., and Marshall, B. V. (1986). “Changing climate: Geothermal evidence from permafrost in the Alaskan Arctic.” Science, 234, 689–696.
6.
Lachenbruch, A. H., Cladouhos, T. T., and Saltus, R. W. (1988). “Permafrost temperature and the changing climate.” Final Proc. Fifth Int. Conf. Permafrost, Norwegian Inst. of Tech., 9–17.
7.
Lachenbruch, A. H., et al. (1987). “Temperature and depth of permafrost on the Alaskan North Slope.” Alaskan north slope geology: Pacific sect, I. Trailleur and P. Weimer, eds. Amer. Assoc. of Petroleum Geologists and Alaska Geological Society, Anchorage, Alaska, 50, 545–558.
8.
Osterkamp, T. E. (1983). “Response of Alaskan permafrost to climate.” Final Proc. Fourth Int. Conf. Permafrost, National Academy Press, 145–152.
9.
Osterkamp, T. E., Gosink, J. P., and Kawasaki, K. (1987). “Measurements of permafrost temperatures to evaluate the consequences of recent climate warming.” Report No. 84 NX 203 F 233181, Alaska Dept. of Transp. and Public Facilities, Fairbanks, Alaska, Dec.
10.
Osterkamp, T. E. (1988). “Permafrost temperatures in the Arctic National Wildlife Range.” Cold Reg. Sci. Technol., 15(2), 191–193.
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Copyright © 1990 ASCE.
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Published online: Mar 1, 1990
Published in print: Mar 1990
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