Lookup NU author(s): Professor Steve Juggins
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We reconstruct the pre-acidification pH of the Round Loch of Glenhead for 1800 AD using three diatom-pH transfer functions and a diatom-cladocera modern analogue technique (MAT), and compare these palaeo-data with hindcast data for the loch using the dynamic catchment acidification model MAGIC. We assess the accuracy of the transfer functions by comparing pH inferences from contemporary sediment and sediment trap diatom samples from the lake with measured pH from the UK Acid Waters Monitoring Network. The results from the transfer functions estimate the pH in 1800 to have been between 5.5. and 5.7, the MAT approach estimates pH at 5.8 and the MAGIC hindcast (for 1850) is pH 6.1. Whilst we have no independent method of assessing which of these values is most accurate, the disagreement between the two approaches indicates that further work is needed to resolve the discrepancies. © 2005 Published by Elsevier Ltd.
Author(s): Battarbee R, Monteith D, Juggins S, Evans C, Jenkins A, Simpson G
Publication type: Article
Publication status: Published
Journal: Environmental Pollution
Print publication date: 01/09/2005
ISSN (print): 0269-7491
ISSN (electronic): 1873-6424
PubMed id: 15944045
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