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Extreme value statistics and thermodynamics of earthquakes: aftershock sequences
Pareto and beta power laws cluster dimension frequency-magnitude regression laws order-statistics indipendence and clustering thermodynamics of aftershocks
2015/9/29
The Gutenberg-Richter magnitude-frequency law takes into account the minimum detectable magnitude, and treats aftershocks as if they were independent and identically distributed random events. A new m...
Extreme value statistics and thermodynamics of earthquakes: large earthquakes
Gutemberg-Richter Pareto laws
2015/9/28
A compound Poisson process is used to derive a new shape parameter which can be used to discriminate between large earthquakes and aftershock sequences. Sample exceedance distributions of large earthq...
Use of agricultural statistics to verify the interannual variability in land surface models: a case study over France with ISBA-A-gs
agricultural statistics interannual variability
2014/12/11
In order to verify the interannual variability of
the aboveground biomass of herbaceous vegetation simulated by the ISBA-A-gs land surface model, within the SURFEX modelling platform, French agricult...
Non-Gaussian statistics, maxwellian derivation and stellar polytropes
Non-Gaussian statistics maxwellian derivation stellar polytropes Space Physics
2012/5/29
In this letter we discuss the Non-gaussian statistics considering two aspects. In the first, we show that the Maxwell's first derivation of the stationary distribution function for a dilute gas can be...
Experimental study of the statistics of slipping events in solid friction
Experimental study statistics of slipping events solid friction
2009/11/16
The statistics of the stick-slip motion is studied in two experiments, where elasticity is distributed either on a surface or on a volume. The rough surface is realised by embedding steel spheres in a...
Non-Gaussian statistics in space plasma turbulence:fractal properties and pitfalls
Non-Gaussian statistics space plasma turbulence fractal properties pitfalls
2009/11/16
Statistical properties of collisionless plasmas in the vicinity of the Earth's bow shock are investigated with the aim to characterize the intermittent behaviour of non- magnetohydrodynamic turbulence...
Intermittency,non-Gaussian statistics and fractal scaling of MHD fluctuations in the solar wind
Intermittency,non-Gaussian statistics fractal scaling MHD fluctuations solar wind
2009/11/13
This paper gives a review of some recent work on intermittency, non-Gaussian statistics, and fractal scaling of solar wind magnetohydrodynamic turbulence. Model calculations and theories are discussed...
Fractal time statistics of AE-index burst waiting times:evidence of metastability
Fractal time statistics AE-index burst waiting times evidence of metastability
2009/11/12
Recent observations and analyses evidenced that the magnetotail, as well as the magnetospheric dynamics are characterised by a scale-free behaviour and intermittence. These results, along with numeric...
Extremum statistics:a framework for data analysis
Extremum statistics framework for data analysis
2009/11/12
Recent work has suggested that in highly correlated systems, such as sandpiles, turbulent fluids, ignited trees in forest fires and magnetization in a ferromagnet close to a critical point, the probab...
Response of a global atmospheric circulation model to spatio-temporal stochastic forcing:ensemble statistics
global atmospheric circulation model spatio-temporal stochastic forcing ensemble statistics
2009/11/12
The response of a simplified global atmospheric circulation model (PUMA) to spatiotemporal stochastic forcing is analyzed using the statistical measures originally developed for ensemble forecast eval...
Earthquake statistics in a Block Slider Model and a fully dynamic Fault Model
Earthquake statistics Block Slider Model fully dynamic Fault Model
2009/11/11
We examine the event statistics obtained from two differing simplified models for earthquake faults. The first model is a reproduction of the Block-Slider model of Carlson et al. (1991), a model often...
A nonextensive statistics approach for Langmuir waves in relativistic plasmas
nonextensive statistics approach Langmuir waves relativistic plasmas
2009/11/9
The nonextensive statistics formalism proposed by Tsallis has found many applications in systems with memory effects, long range spatial correlations, and in general whenever the phase space has fract...
Tsallis and Levy statistics in the preparation of an earthquake
Tsallis Levy statistics preparation of an earthquake
2009/10/30
Precursory fracture induced electromagnetic (EM) emissions, rooted in opening cracks and ranging from MHz to kHz, with the MHz appearing earlier, are produced and detected both at laboratory and geoph...
Weather regime dependence of extreme value statistics for summer temperature and precipitation
Weather regime dependence extreme value statistics summer temperature
2009/10/30
Extreme Value Theory (EVT) is a useful tool to describe the statistical properties of extreme events. Its underlying assumptions include some form of temporal stationarity in the data. Previous studie...