Little Ice Age (Neoglacial) Paleoenvironmental Conditions At Siple Station, Antarctica
Open Access
- 1 January 1990
- journal article
- research article
- Published by International Glaciological Society in Annals of Glaciology
- Vol. 14, 199-204
- https://doi.org/10.1017/s0260305500008570
Abstract
The 550-year records of δ 18O and dust concentrations from Siple Station, Antarctica suggest warmer and less dusty atmospheric conditions from 1600 to 1830 A.D. which encompasses much of the northern hemisphere Little Ice Age (LIA). Dust and δ 18O data from South Pole Station indicate that the opposite conditions (e.g. cooler and more dusty) were prevalent there during the LIA. Meteorological data from 1945–85 show that the LIA temperature opposition between Amundsen-Scott and Siple, inferred from δ 18O, is consistent with the present spatial distribution of surface temperature. There is some observational evidence suggesting that under present conditions stronger zonal westerlies produce a temperature pattern similar to that of the LIA. These regional differences demonstrate that a suite of spatially distributed, high resolution ice-core records will be necessary to characterize the LIA in AntarcticaKeywords
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