Searched for: author:"King, M.A."
(1 - 7 of 7)
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Wolstencroft, M. (author), King, M.A. (author), Whitehouse, P.L. (author), Bentley, M.J. (author), Nield, G.A. (author), King, E.C. (author), McMillan, M. (author), Shepherd, A. (author), Barletta, V. (author), Bordoni, A. (author), Riva, R.E.M. (author), Didova, O. (author), Gunter, B.C. (author)
The measurement of ongoing ice-mass loss and associated melt water contribution to sea-level change from regions such as West Antarctica is dependent on a combination of remote sensing methods. A key method, the measurement of changes in Earth's gravity via the GRACE satellite mission, requires a potentially large correction to account for the...
journal article 2015
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Gunter, B.C. (author), Didova, O. (author), Riva, R. (author), Ligtenberg, S.R.M. (author), Lenaerts, J.T.M. (author), King, M.A. (author), Van den Broeke, M.R. (author), Urban, T. (author)
This study explores an approach that simultaneously estimates Antarctic mass balance and glacial isostatic adjustment (GIA) through the combination of satellite gravity and altimetry data sets. The results improve upon previous efforts by incorporating a firn densification model to account for firn compaction and surface processes as well as...
journal article 2014
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King, M.A. (author), Keshin, M. (author), Whitehouse, P.L. (author), Thomas, I.D. (author), Milne, G. (author), Riva, R.E.M. (author)
The only vertical land movement signal routinely corrected for when estimating absolute sea-level change from tide gauge data is that due to glacial isostatic adjustment (GIA). We compare modeled GIA uplift (ICE-5G + VM2) with vertical land movement at ?300 GPS stations located near to a global set of tide gauges, and find regionally coherent...
journal article 2012
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Thomas, I.D. (author), King, M.A. (author), Bentley, M.J. (author), Whitehouse, P.L. (author), Penna, N.T. (author), Williams, S.D.P. (author), Riva, R.E.M. (author), Lavallee, D.A. (author), Clarke, P.J. (author), King, E.C. (author), Hindmarch, R.C.A. (author), Koivula, H. (author)
Bedrock uplift in Antarctica is dominated by a combination of glacial isostatic adjustment (GIA) and elastic response to contemporary mass change. Here, we present spatially extensive GPS observations of Antarctic bedrock uplift, using 52% more stations than previous studies, giving enhanced coverage, and with improved precision. We observe...
journal article 2011
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Lavallée, D.A. (author), Moore, P. (author), Clarke, P.J. (author), Petrie, E.J. (author), Van Dam, T. (author), King, M.A. (author)
Changes in J2, resulting from past and present changes in Earth's climate, are traditionally observed by Satellite Laser ranging (SLR). Assuming an elastic Earth, it is possible to infer changes in J2 from changes in Earth's shape observed by GPS. We compare estimates of non-secular J2 changes from GPS, SLR, GRACE, and a load model. The GPS and...
journal article 2010
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King, M.A. (author), Altamimi, Z. (author), Boehm, J. (author), Bos, M. (author), Dach, R. (author), Elosegui, P. (author), Fund, F. (author), Hernández-Pajares, M. (author), Lavallee, D. (author), Riva, E.M. (author)
The provision of accurate models of Glacial Isostatic Adjustment (GIA) is presently a priority need in climate studies, largely due to the potential of the Gravity Recovery and Climate Experiment (GRACE) data to be used to determine accurate and continent-wide assessments of ice mass change and hydrology. However, modelled GIA is uncertain due...
journal article 2010
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Petrie, E.J. (author), King, M.A. (author), Moore, P. (author), Lavallée, D.A. (author)
We describe how GPS time series are influenced by higher?order ionospheric effects over the last solar cycle (1995–2008) and examine implications for geophysical studies. Using 14 years of globally reprocessed solutions, we demonstrate the effect on the reference frame. Including second? and third?order ionospheric terms causes up to 10 mm...
journal article 2010
Searched for: author:"King, M.A."
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