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Lookup NU author(s): Julia Stockamp, Professor Zhenhong Li, Dr Liz Petrie
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Understanding the effects of glacial isostatic adjustment (GIA) of the British Isles is essential for the assessment of past and future sea-level trends. GIA has been extensively examined in the literature, employing different research methods and observational data types. Geological evidence from palaeo-shorelines and undisturbed sedimentary deposits has been used to reconstruct long-term relative sea-level change since the Last Glacial Maximum. This information derived from sea-level index points has been employed to inform empirical isobase models of the uplift in Scotland using trend surface and Gaussian trend surface analysis, as well as to calibrate more theory-driven GIA models that rely on Earth mantle rheology and ice sheet history. Furthermore, current short-term rates of GIA-induced crustal motion during the past few decades have been measured using different geodetic techniques, mainly continuous GPS (CGPS) and absolute gravimetry (AG). AG-measurements are generally employed to increase the accuracy of the CGPS estimates. Synthetic aperture radar interferometry (InSAR) looks promising as a relatively new technique to measure crustal uplift in the northern parts of Great Britain, where the GIA-induced vertical land deformation has its highest rate. This literature review provides an in-depth comparison and discussion of the development of these different research approaches.
Author(s): Stockamp J, Bishop P, Li Z, Petrie EJ, Hansom J, Rennie A
Publication type: Review
Publication status: Published
Journal: Earth and Environmental Science Transactions of the Royal Society of Edinburgh
Year: 2016
Volume: 106
Issue: 3
Pages: 145-170
Print publication date: 01/11/2016
Online publication date: 16/10/2016
Acceptance date: 15/02/2016
ISSN (print): 1755-6910
ISSN (electronic): 1755-6929
URL: https://doi.org/10.1017/S1755691016000074
DOI: 10.1017/S1755691016000074
