The physical and chemical characteristics of Lake Bonney, a permanently ice-covered closed basin lake in Taylor Valley, Antarctica are influenced significantly by local climate. The rising lake-levels of the past thirty years indicate a recent change in the local climate. We explored the significance of twentieth century changes in lake-level as a climate-change indicator by using a hydrologic model for the basin and a Monte Carlo simulation based on the variability in the available 30 yrs of hydrologic record. We compared the lake-level in the retrospective simulations with a measurement surveyed by Robert Scott's party in 1903. All the retrospective simulations based on the observed inflows yielded estimates that the lake was dry in 1903. It was necessary to remove 6 yrs from the observed 21-yr record for the retrospective simulation to match the measured 1903 lake-level for 50% of the simulations. From these analyses, we conclude that the period from 1969 to the present has had greater availability of solar radiation for meltwater generation, possibly brought about by changing cloud-cover patterns and coupled with a gradual warming trend. A third simulation indicated that an annual increase in inflow of about 3% between 1903 and 1973 would be required to match the 1903 measurement.
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Cane, M. A., A. C. Clement, A. Kaplan, Y. Kushnir, D. Pozdyakov, R. Seager, S. Zebiak & R. Murtugudde, 1997. Twentiethcentury sea surface temperature trends. Science 275: 957–960.
Chinn, T. J., 1993. Physical hydrology of the dry valley lakes. In Green, W. J. & E. I. Friedmann (eds), Physical and Biogeochemical Processes in Antarctic Lakes. Antarctic Research Series, American Geophysical Union, Washington, D.C., pp. 1–52.
Clow, G. D., C. P. McKay, G. M. Simmons Jr. & R. A. Wharton Jr., 1988. Climatological observations and predicted sublimation rates at Lake Hoare, Antarctica. J. Clim. 1: 715–728.
Conovitz, P. A., D. M. McKnight, L. H. MacDonald, A. G. Fountain & H. R. House, 1998. Hydrological processes influencing streamflow variation in Fryxell Basin, Antarctica. In Ecosystem Dynamics in a Polar Desert: The McMurdo Dry Valleys, Antarctica. Antarctic Research Series, American Geophysical Union, Washington, D.C., pp. 93–108.
Cook, E., T. Bird, M. Peterson, M. Barbetti, B. Buckley, R. D'Arrigo, R. Francey & P. Tans, 1991. Climatic change in Tasmania inferred from a 1089-year tree-ring chronology of Huon Pine. Science 253: 1266–1268.
Doran, P. T., R. A. Wharton & W. B. Lyons, 1994. Paleolimnology of the McMurdo Dry Valleys, Antarctica. J. Paleolim. 10: 85–114.
Douglas, M. S. V., J. P. Smol & W. Blake Jr., 1994. Marked post-18th century environmental change in high-arctic ecosystems. Science 266: 416–419.
Etter, D. M., 1990. Structured FORTRAN 77 for Engineers and Scientists, 3rd edition. Benjamin/Cummings, Redwood City, CA, 567 pp.
Fountain, A. G., G. L. Dana, K. J. Lewis, B. H. Vaughn & D. M. McKnight, 1998. Glaciers of the McMurdo Dry Valleys, Southern Victoria Land, Antarctica. In Priscu, J. C. (ed.), Ecosystem Dynamics in a Polar Desert. Antarctic Research Series, American Geophysical Union, Washington, D.C., pp. 65–75.
Keys, J. R., 1980. Air temperature, wind, precipitation, and atmospheric humidity in the McMurdo region. Publ. 17, Geology Department, Victoria University, Wellington, New Zealand, 57 pp.
Odeh, R. E. & J. O. Evans, 1974. Algorithm AS70: Percentage points of the normal distribution. Appl. Stat. 23: 96–97.
Overpeck, J., K. Hughen, D. Hardy, R. Bradley, R. Case, M. Douglas, B. Finney, K. Gajewski, G. Jacoby, A. Jennings, S. Lamoreaux, A. Lasca, G. MacDonald, J. Moore, M. Retelle, S. Smith, A. Wolfe & G. Zielinski, 1997. Arctic environmental change of the last four centuries. Science 278: 1251–1256.
Roots, E. F., 1989. Climate change: high latitude regions. Clim. Change 14: 223–250.
Schmok, J. P. & B. S. Wellington, 1995. Lakes Hoare, Fryxell, and Bonney: Geophysical determination of bathymetry and morphometry. Report generated by Golder Associates Ltd., Burnaby, British Columbia.
Scott, R. F., 1905. The Voyage of the Discovery, vol. 2. Smith Elder, London, 290 pp.
Spaulding, S. A., D. M. McKnight, E. F. Stoermer & P. T. Doran, 1997. Diatoms in sediments of perennially ice-covered Lake Hoare, and implications for interpreting lake history in the McMurdo Dry Valleys of Antarctica. J. Paleolim. 17: 403–420.
Von Guerard, P., D. M. McKnight, R. A. Harnish, J. W. Gartner & E. D. Andrews, 1994. Streamflow, water temperature, and specific conductance data for selected streams draining into Lake Fryxell, Lower Taylor Valley, Victoria Land, Antarctica. U.S. Geological Survey. Open-file report 94–545, 65 pp.
Wilson, A. T., 1967. The lakes of the McMurdo Dry Valleys. Tuatara 15: 152–164.
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Bomblies, A., McKnight, D. & Andrews, E. Retrospective simulation of lake-level rise in Lake Bonney based on recent 21-year record: indication of recent climate change in the McMurdo Dry Valleys, Antarctica. Journal of Paleolimnology 25, 477–492 (2001). https://doi.org/10.1023/A:1011131419261
- Monte Carlo simulation
- climate change
- McMurdo Dry Valleys