It has been proposed that solar cycle irradiance variations may affect the whole planet’s climate via the stratosphere, the Quasi-Biennial Oscillation (QBO) and Arctic Oscillation (AO). We test this …
Dec 24, 2006
Grinsted (2006) Advanced methods of glaciological modelling and time series analysis, Doctoral dissertation, Arctic Centre Reports 47. pdf
Dec 24, 2006
We present a novel method of improving signal-to-noise ratio in radargrams. The method uses singular spectrum analysis (SSA) to separate each individual radar trace into orthogonal components. The …
Dec 24, 2006
We develop a continentality proxy (1600–1930) based on amplitudes of the annual signal in oxygen isotopes in an ice core. We show via modeling that by using 5 and 15 year average amplitudes the …
Dec 24, 2006
We examine relationships between the variability in the long-term time series of European sea level and the large-scale atmospheric circulation represented by the North Atlantic Oscillation (NAO) and …
Dec 24, 2005
We explore methods of dating a 101 m ice core from a bare ice ablation area in the Yamato Mountains, Dronning Maud Land, East Antarctica. There are two unknowns, the age of the ice at the surface and …
Dec 24, 2005
Moore, J. C., A. Grinsted, S. Jevrejeva (2005) New Tools for Analyzing Time Series Relationships and Trends. EOS, 86(24). pdf
Dec 24, 2005
We examine the impact of melt water percolation on the soluble ion chemical record from the Lomonosovfonna ice core. Principle component analysis shows that melting produces only simple changes …
Dec 24, 2005
We analyze the Permanent Service for Mean Sea Level (PSMSL) database of sea level time series using a method based on Monte Carlo Singular Spectrum Analysis (MC-SSA). We remove 2–30 year …
Dec 24, 2005
Many scientists have made use of the wavelet method in analyzing time series, often using popular free software. However, at present there are no similar easy to use wavelet packages for analyzing two …
Dec 24, 2004
Sinisalo, A., A. Grinsted, J. Moore, (2004) Dynamics of the Scharffenbergbotnen blue ice area, Dronning Maud Land, Antarctica. Ann. Glaciol. 39. pdf
Dec 24, 2004
Using Monte-Carlo Singular Spectrum Analysis (MC- SSA) and Wavelet Transform (WT) we separate statistically significant components from time series and demonstrate significant co-variance and …
Dec 24, 2004