Publications (12)
On the effect of the luni-solar gravitational attraction on trees
Jean-Louis Le Mouël, Dominique Gibert, Jean-Baptiste Boulé +5
In this paper, we revisit old electrical measurements conducted on a poplar tree in 2003 (Gibert et al. 2006), which showed the presence of a diurnal electrical signal, attributed…
Video-rate computational heterodyne holography
Antoine Dillée, Romain Cancilliere, Fernando Lopes +1
We present a versatile computational image rendering software of optically-acquired holograms. The reported software can process 4 Megapixel 8-bit raw frames from a sensor array ac…
On the Optimization of Singular Spectrum Analyses: A Pragmatic Approach
Fernando Lopes, Dominique Gibert, Vincent Courtillot +2
Singular Spectrum Analysis (SSA) occupies a prominent place in the real signal analysis toolkit alongside Fourier and Wavelet analysis. In addition to the two aforementioned analys…
A living forest of Tibetan Juniper trees as a new kind of astronomical and geophysical observatory
Vincent Courtillot, Jean-Baptiste Boulé, Jean-Louis Le Mouël +5
The trajectory of Earth about the Sun is perturbed by torques exerted by the Moon and Sun, and also the four giant planets. These provoke variations of insolation at Earth surface,…
On a planetary forcing of global seismicity
Stéphanie Dumont, Jean de Bremond d'Ars, Jean-Baptiste Boulé +10
We have explored the temporal variability of the seismicity at global scale over the last 124 years, as well as its potential drivers. To achieve this, we constructed and analyzed…
On the mechanism of thermal self-regulation of trees: a kind of homeothermic observation
Jean-Baptiste Boulé, Jean de Bremond d'Ars, Vincent Courtillot +6
What is certain is that surface temperatures around the globe vary considerably, regardless of the time scales or underlying causes. Since 1850, we have observed an average increas…
Singular value demodulation of phase-shifted holograms
Fernando Lopes, Michael Atlan
We report on phase-shifted holographic interferogram demodulation by singular value decomposition. Numerical processing of optically-acquired interferograms over several modulation…
On seasonal trunk thermal buffering and its electrical signature in mature trees
Jean-Baptiste Boulé, Vincent Courtillot, Dominique Gibert +4
The study monitors temperature and spontaneous electrical potentials in mature oak and hornbeam trees over several years, showing that hydraulic processes help buffer trunk tempera…
On the planetary forcing of the Solar dynamo: Evidence from a Lagrangian framework
Jean-Louis Le Mouël, Vincent Courtillot, Vladimir Kossobokov +4
Whether planetary motions influence the solar magnetic cycle has remained an open question due to the lack of a rigorous physical mechanism. Here we develop a Lagrangian framework…
On the evolution of the concept of probability as a mirror of the evolution of reason
Jean-Louis Le Mouël, Vincent Courtillot, Dominique Gibert +6
Over the centuries, probability theory has grown from the calculus of games of chance into a central framework for reasoning under uncertainty. This article interprets that evoluti…
Information theory, Signal Analysis and Inverse Problem
Dominique Gibert, Fernando Lopes, Vincent Courtillot +2
This book is intended for teaching Signal Analysis methods and Inverse Problems theory. It is completely open access and will remain free. It is currently illustrated with examples…
The Effect of Lunar Declination on CO2 degassing from Central Italian Apennines
Pierpaolo Zuddas, Fernando Lopes
The periodical degassing from CO2 over-pressured reservoirs may have serious consequences for the environment making urgent understanding the processes and forecasting the frequenc…