SSA enhancement of GPR data.
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, 2006Home
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Svalbard summer melting, continentality, and sea ice extent from the Lomonosovfonna ice core
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 -
Influence of large-scale atmospheric circulation on European sea level.
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 -
Interpreting ancient ice in a shallow ice core from the South Yamato (Antarctica) blue ice area.
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 -
New Tools for Analyzing Time Series Relationships and Trends.
Moore, J. C., A. Grinsted, S. Jevrejeva (2005) New Tools for Analyzing Time Series Relationships and Trends. EOS, 86(24). pdf
Dec 24, 2005 -
Separation of melting and environmental signals in an ice core with seasonal melt.
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 -
Virtual station reconstruction of global sea level.
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 -
Application of the cross wavelet transform and wavelet coherence to geophysical time series.
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 -
Dynamics of the Scharffenbergbotnen blue ice area.
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 -
Oceanic and atmospheric transport of multiyear ENSO signatures to the polar regions.
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 -
A simple data driven flow model for Blue Ice Area dating.
Grinsted, A., J. Moore, V. B. Spikes, and A. Sinisalo (2003), Dating Antarctic blue ice areas using a novel ice flow model, Geophys. Res. Lett., 30(19), doi:10.1029/2003GL017957. pdf
Dec 24, 2003 -
ENSO influence on AO and Baltic ice conditions.
Jevrejeva, S., J. C. Moore, and A. Grinsted (2003), Influence of the Arctic Oscillation and El Niño-Southern Oscillation (ENSO) on ice conditions in the Baltic Sea: The wavelet approach, J. Geophys. …
Dec 24, 2003