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A weighted-averaging regression and calibration model for inferring lakewater salinity from fossil diatom assemblages in saline lakes of the Vestfold Hills: a new tool for interpreting Holocene lake histories in Antarctica

Citation

Roberts, D and McMinn, A, A weighted-averaging regression and calibration model for inferring lakewater salinity from fossil diatom assemblages in saline lakes of the Vestfold Hills: a new tool for interpreting Holocene lake histories in Antarctica, Journal of Paleolimnology, 19, (2) pp. 99-113. ISSN 0921-2728 (1998) [Refereed Article]

DOI: doi:10.1023/A:1007947402927

Abstract

The relationship between surface sediment diatom assemblages and measured limnological variables in thirtythree coastal Antarctic lakes from the Vestfold Hills was examined by constructing a diatom-water chemistry dataset. Previous analysis of this dataset by canonical correspondence analysis revealed that salinity accounted for a significant amount of the variation in the distribution of the diatom assemblages. Weighted-averaging regression and calibration of this diatom-salinity relationship was used to establish a transfer function for the reconstruction of past lakewater salinity from fossil diatom assemblages. Weighted-averaging regression and calibration with classical deshrinking provided the best model for salinity reconstructions and this was applied to the fossil diatom assemblages from one of the saline lakes in the Vestfold Hills in order to assess its potential for palaeosalinity and palaeoclimate reconstruction.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Palaeoecology
Objective Division:Environment
Objective Group:Land and Water Management
Objective Field:Antarctic and Sub-Antarctic Land and Water Management
Author:Roberts, D (Dr Donna Roberts)
Author:McMinn, A (Professor Andrew McMinn)
ID Code:14550
Year Published:1998
Web of Science® Times Cited:51
Deposited By:IASOS
Deposited On:1998-08-01
Last Modified:2011-08-09
Downloads:0

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