, Spectrum Analysis and 1/f Processes, in Wavelets in statistics, vol.103, pp.15-30, 1995.
Edge turbulence characterization in RFX-mod with optical diagnostics, Plasma Physics and Controlled Fusion, vol.51, issue.10, 2009. ,
, Non-linear theory and fluctuations, vol.1, p.1, 1975.
Solar wind vs magnetosheath turbulence and Alfvén vortices, Nonlinear Processes in Geophysics, vol.15, issue.3, pp.95-108, 2008. ,
Alfvén vortices in Saturn's magnetosheath: Cassini observations, Geophys. Res. Lett, vol.35, p.3, 2008. ,
Spectra and anisotropy of magnetic fluctuations in the Earth's magnetosheath: Cluster observations, Annales Geophysicae, vol.26, pp.3585-3596, 2008. ,
André, Alfvén vortex filaments observed in magnetosheath downstream of a quasi-perpendicular bow shock, Journal of Geophysical Research (Space Physics), vol.111, issue.A10, p.12208, 2006. ,
Universality of Solar-Wind Turbulent Spectrum from MHD to Electron Scales, Physical Review Letters, vol.103, issue.16, p.165003, 2009.,
URL : https://hal.archives-ouvertes.fr/hal-01553809
The EUV Sun as the superposition of elementary Suns, Astron. Astroph, vol.487, pp.13-16, 2008.,
URL : https://hal.archives-ouvertes.fr/hal-00325235
On the origin of "intermittency" in the scrape-off layer of linear magnetic confinement devices, Physics of Plasmas, vol.10, pp.3629-3634, 2003. ,
Turbulence intermittency and burst properties in tokamak scrape-off layer, Physics of Plasmas, vol.8, issue.2, pp.1612-1624, 2001. ,
, X-ray tomography on the TCV tokamak. Plasma Physics and Controlled Fusion, vol.38, pp.1849-1878, 1996.
Solar image processing techniques with automated feature recognition, Solar Physics, vol.262, issue.2, pp.235-275, 2010. ,
Solar stereoscopy and tomography, Living Reviews in Solar Physics, vol.8, issue.5, 2011. ,
, Complexity. Cambridge Nonlinear Science Series, vol.6, p.1, 1999.
Statistical Analyses in the Study of Solar Wind / Magnetosphere Coupling, Astrophysics and Space Science Library, vol.126, pp.17-38, 1986. ,
Measurement of the Electric Fluctuation Spectrum of Magnetohydrodynamic Turbulence, Physical Review Letters, vol.94, issue.21, p.215002, 2005. ,
Estimation of wavenumber and frequency spectra using fixed probe pairs, Journal of Applied Physics, vol.53, pp.3933-3940, 1982. ,
, Inter-ELM filaments and turbulent transport in the Mega-Amp Spherical Tokamak. Plasma Physics and Controlled Fusion, vol.51, 2009.
Passive particle dynamics in a flow exhibiting transition to turbulence, Physics of Plasmas, vol.4, pp.2864-2870, 1997. ,
Characterization of coherent structures in tokamak edge turbulence, Physical Review Letters, vol.73, pp.3403-3406, 1994. ,
Extended self-similarity in turbulent flows, Phys. Rev. E, vol.48, p.29, 1993. ,
, , p.1, 2003.
, Dynamical Systems Approach to Turbulence. Cambridge Nonlinear Science Series, vol.8, p.1, 2005.
Solar wind turbulence and shear: A superposed-epoch analysis of corotating interaction regions at 1 AU, Journal of Geophysical Research (Space Physics), vol.115, p.10101, 2010. ,
The Solar Wind as a Turbulence Laboratory, Living Reviews in Solar Physics, vol.2 ,
History, current state, and future directions of ionospheric imaging. Reviews of Geophysics, vol.46, p.1003, 2008. ,
Dynamic Three-Dimensional Tomography of the Solar Corona, Solar Physics, vol.262, pp.495-509, 2010. ,
Scaling exponents of the velocity structure functions in the interplanetary medium, Ann. Geophys, vol.12, issue.7, pp.585-590, 1994. ,
Evidences for extended self-similarity in hydromagnetic turbulence, Geophys. Res. Lett, vol.23, pp.121-124, 1996. ,
Intermittency and turbulence in a magnetically confined fusion plasma, Phys. Rev. E, vol.62, pp.49-56, 2000. ,
Scaling laws in plasma turbulence, Nuovo Cimento Rivista Serie, vol.27, issue.8, pp.1-108, 2004. ,
Anomalous diffusion and exit time distribution of particle tracers in plasma turbulence model, Physics of Plasmas, vol.8, pp.5096-5103, 2001. ,
Self-similarity of the plasma edge fluctuations, Physics of Plasmas, vol.5, pp.3632-3643, 1998. ,
Generalized Similarity in Finite Range Solar Wind Magnetohydrodynamic Turbulence, Physical Review Letters, vol.103, issue.24, p.241101, 2009. ,
Cluster and ACE observations of phase synchronization in intermittent magnetic field turbulence: a comparative study of shocked and unshocked solar wind, Annales Geophysicae, vol.27, pp.1789-1801, 2009. ,
Statistical methods of automatic spectral classification and their application to the Hamburg/ESO Survey, Astron. Astroph, vol.391, pp.397-406, 2002. ,
Power-law distributions in empirical data, SIAM Review, vol.51, pp.661-703, 2009. ,
, Dynamics of Plasma Blobs in a Shear Flow, vol.101, p.115005, 2008.
Internally driven spatiotemporal irregularity in a dc glow discharge, Phys. Rev. E, vol.62, pp.7219-7226, 2000. ,
Convective transport by intermittent blob-filaments: Comparison of theory and experiment, Physics of Plasmas, vol.18, issue.6, p.60501, 2011. ,
, Spectral and Statistical Analysis of Plasma Turbulence: Beyond Linear Techniques, vol.615, pp.315-343, 2003.
Can high-order moments be meaningfully estimated from experimental turbulence measurements?, Phys. Rev. E, vol.70, issue.5, p.55302, 2004. ,
Identifying nonlinear wave interactions in plasmas using two-point measurements: A case study of Short Large Amplitude Magnetic Structures (SLAMS), Journal of Geophysical Research, vol.104, pp.17079-17090, 1999. ,
Comparison of L-and H-mode plasma edge fluctuations in MAST, Plasma Physics and Controlled Fusion, vol.47, pp.885-901, 2005. ,
Use of multi-point analysis and modelling to address cross-scale coupling in space plasmas: Lessons from Cluster, Planetary and Space Science, vol.59, pp.630-638, 2011. ,
, Analysis Methods for Multi-Spacecraft Data, vol.1, pp.5-42, 1998.
Wavelet transforms and their applications to turbulence, Annual Review of Fluid Mechanics, vol.24, issue.3, pp.395-457, 1992.,
URL : https://hal.archives-ouvertes.fr/hal-01299264
Coherent Vortex Extraction in 3D Turbulent Flows Using Orthogonal Wavelets, Physical Review Letters, vol.87, issue.5, p.54501, 2001. ,
Extraction of coherent bursts from turbulent edge plasma in magnetic fusion devices using orthogonal wavelets, Physics of Plasmas, vol.13, issue.4, p.42304, 2006. ,
, Turbulence Analysis, Modelling and Computing Using Wavelets, vol.2, p.117, 2004.
Electrostatic instabilities, turbulence and fast ion interactions in the TORPEX device, Plasma Physics and Controlled Fusion, vol.52, issue.12, 2010. ,
Turbulent transport in a toroidal magnetized plasma, Plasma Physics and Controlled Fusion, vol.54, issue.8, p.85017, 2012. ,
, , 1995.
A Review -Observations of Turbulence and Structure in Magnetized Plasmas, Plasma and Fusion Research, vol.5, issue.3, p.46, 2010. ,
Experimental Observation of the Blob-Generation Mechanism from Interchange Waves in a Plasma, Physical Review Letters, vol.100, issue.5, p.55004, 2008. ,
Turbulence In The Solar Atmosphere: Manifestations And Diagnostics Via Solar Image Processing, Solar Physics, vol.228, pp.5-27, 2005. ,
Large-Scale Hybrid Simulations of Particle Acceleration at a Parallel Shock, Astroph. J, vol.609, pp.452-458, 2004. ,
Cosmic-Ray Transport and Interaction with Shocks, Space Science Reviews, p.117, 2011. ,
Investigation of rescaled range analysis, the Hurst exponent, and long-time correlations in plasma turbulence, Physics of Plasmas, vol.9, pp.1312-1317, 2002. ,
An overview of results from the TCV tokamak, Nuclear Fusion, vol.43, issue.12, pp.1619-1631, 2003. ,
Intermittent MHD structures and classical discontinuities, Geophys. Res. Lett, vol.35, p.19111, 2008. ,
Statistical Analysis of Discontinuities in Solar Wind ACE Data and Comparison with Intermittent MHD Turbulence, Astroph. J. Lett, vol.691, issue.3, pp.111-114, 2009. ,
Waiting-time distributions of magnetic discontinuities: Clustering or Poisson process?, Phys. Rev. E, vol.80, issue.4, p.46401, 2009. ,
Evidence for Nonlinear Development of Magnetohydrodynamic Scale Intermittency in the Inner Heliosphere, Astroph. J, vol.749, issue.3, p.105, 2012. ,
Radially propagating fluctuation structures in the scrape-off layer of Alcator C-Mod, Physics of Plasmas, vol.13, issue.1, 2006. ,
Nondiffusive Suprathermal Ion Transport in Simple Magnetized Toroidal Plasmas, Physical Review Letters, vol.108, issue.3, p.35006, 2012. ,
Orientation and motion of a discontinuity from Cluster curlometer capability: Minimum variance of current density, Geophys. Res. Lett, vol.31, p.10804, 2004. ,
Phase coherence of MHD waves in the solar wind, Space Science Reviews, vol.107, pp.463-466, 2003. ,
MHD tomography using interplanetary scintillation measurement, Journal of Geophysical Research (Space Physics), vol.108, p.1102, 2003. ,
Rowlands, Intermittency, scaling, and the Fokker-Planck approach to fluctuations of the solar wind bulk plasma parameters as seen by the WIND spacecraft, Phys. Rev. E, vol.67, issue.5, p.56404, 2003. ,
Characterization of edge turbulence in relation to edge magnetic field configuration in Ohmic L-mode plasmas in the Mega Amp Spherical Tokamak, Nuclear Fusion, vol.48, issue.8, p.85009, 2008. ,
Whistler mode wave packets in the Earth's foreshock region, Nature, vol.287, pp.417-420, 1980. ,
Anisotropy in Space Plasma Turbulence: Solar Wind Observations, Space Science Reviews, pp.1-18, 2011. ,
Coherent structures in two-dimensional plasma turbulence, Physics of Fluids B, vol.3, pp.1609-1625, 1991. ,
The first in situ observation of Kelvin-Helmholtz waves at high-latitude magnetopause during strongly dawnward interplanetary magnetic field conditions, Journal of Geophysical Research (Space Physics), vol.117, p.8233, 2012. ,
Imaging of turbulent structures and tomographic reconstruction of TORPEX plasma emissivity, Physics of Plasmas, vol.17, issue.12, 2010. ,
Three-dimensional reconstruction of heliospheric structure using iterative tomography: A review, Journal of Atmospheric and Solar-Terrestrial Physics, vol.73, pp.1214-1227, 2011. ,
Conditional eddies in plasma turbulence, Physics of Fluids, vol.30, pp.2239-2254, 1987. ,
, Nonlinear Time Series Analysis, vol.7, p.1, 2000.
Experiments on the propagation of plasma filaments, Physical Review Letters, vol.101, issue.1, 2008. ,
, Limit on Stably Trapped Particle Fluxes, vol.71, p.4, 1966.
Imaging of electron density troughs by tomographic techniques, Radio Science, vol.32, issue.4, pp.1607-1621, 1997. ,
Transient reconnection in the cusp during strongly negative IMF B, Journal of Geophysical Research (Space Physics), vol.109, p.4204, 2004. ,
Measurements of nonlinear energy transfer in turbulence in the tokamak fusion test reactor, Phys. Rev. Lett, vol.79, pp.841-844, 1997. ,
, MHD mode identification of tokamak plasmas from Mirnov signals. Plasma Physics and Controlled Fusion, vol.41, pp.1399-1420, 1999.
, Digital bispectral analysis and its applications to nonlinear wave interactions. IEEE Transactions on Plasma Science PS-7, vol.3, pp.120-131, 1979.
, Filament structures at the plasma edge on MAST. Plasma Physics and Controlled Fusion 48(12B, SI), pp.433-441, 2006.
Pseudononstationarity in the scaling exponents of finite-interval time series, Phys. Rev. E, vol.79, issue.3, p.36109, 2009. ,
Enhanced Magnetic Compressibility and Isotropic Scale Invariance at Sub-ion Larmor Scales in Solar Wind Turbulence, Astrophysical Journal, vol.763, p.10, 2013.,
URL : https://hal.archives-ouvertes.fr/hal-01552046
Self-similar signature of the active solar corona within the inertial range of solar-wind turbulence, Physical Review Letters, vol.98, issue.21, p.4, 2007. ,
The local structure of turbulence in incompressible viscous fluid for very large reynolds numbers, Proc. R. Soc. London, Ser. A, vol.30, pp.9-13, 1941. ,
A refinement of previous hypotheses concerning the local structure of turbulence in a viscous incompressible fluid at high Reynolds number, Journal of Fluid Mechanics, vol.13, pp.82-85, 1962. ,
Recent theoretical progress in understanding coherent structures in edge and SOL turbulence, Journal of Plasma Physics, vol.74, issue.3, pp.679-717, 2008. ,
On the use of tricoherent analysis to detect non-linear wave-wave interactions, Signal Processing, vol.42, issue.3, pp.291-309, 1995. ,
Dispersion relation of highfrequency plasma oscillations in Hall thrusters, Physics of Plasmas, vol.15, issue.3, p.34502, 2008. ,
A nonextensive entropy approach to solar wind intermittency. The Astrophysical, Journal, vol.618, issue.1, p.547, 2005. ,
Non-relativistic Solar Electrons, Space Science Reviews, vol.16, pp.189-256, 1974. ,
Multipayload interferometric wave vector determination of auroral hiss, Journal of Geophysical Research (Space Physics), vol.117, p.2306, 2012. ,
Spatio-temporal bifurcations in plasma drift-waves, Physica D, vol.91, issue.3, pp.301-316, 1996. ,
Intermittency in the Solar Wind Turbulence and the Haar Wavelet Transform, Sheffield Space Plasma Meeting: Multipoint Measurements versus Theory, vol.492, pp.53-55, 2001. ,
Signal processing techniques based on singular value decomposition applied to modulated ECH experiments, Nuclear Fusion, vol.43, pp.490-511, 2003. ,
Intermittent divertor filaments in the National Spherical Torus Experiment and their relation to midplane blobs, Nuclear Fusion, vol.50, issue.7, 2010. ,
Intermittency, non-Gaussian statistics and fractal scaling of MHD fluctuations in the solar wind, Nonlinear Processes in Geophysics, vol.4, issue.1, pp.101-124, 1997.,
URL : https://hal.archives-ouvertes.fr/hal-00301849
Stationarity of magnetohydrodynamic fluctuations in the solar wind, Journal of Geophysical Research (Space Physics), vol.87, pp.10347-10354, 1982. ,
Who Needs Turbulence?, Space Science Reviews, vol.160, issue.1-4, pp.145-168, 2011. ,
Observations of Photospheric Dynamics and Magnetic Fields: From Large-Scale to Small-Scale Flows, Space Science Reviews, vol.144, pp.127-149, 2009.,
URL : https://hal.archives-ouvertes.fr/hal-00479865
Characterization of Nondiffusive Transport in Plasma Turbulence via a Novel Lagrangian Method, Phys. Rev. Lett, vol.101, p.165001, 2008. ,
Probabilistic analysis of turbulent structures from two-dimensional plasma imaging, Physics of Plasmas, vol.13, issue.10, p.100701, 2006. ,
Weak langmuir turbulence, Physics Reports, vol.252, pp.177-274, 1995. ,
Multifractal formalism for fractal signals: The structure-function approach versus the wavelet-transform modulus-maxima method, Phys. Rev. E, vol.47, pp.875-884, 1993.,
URL : https://hal.archives-ouvertes.fr/hal-01557138
Multichannel fluctuation data analysis by the singular value decomposition method. Application to MHD modes in JET, Plasma Physics and Controlled Fusion, vol.34, issue.9, p.1447, 1992. ,
The dynamics of marginality and selforganized criticality as a paradigm for turbulent transport, Physics of Plasmas, vol.3, pp.1858-1866, 1996. ,
Wavelet-based density estimation for noise reduction in plasma simulations using particles, Journal of Computational Physics, vol.229, issue.8, pp.2821-2839, 2010. ,
Symmetry breaking in ionization wave turbulence, Phys. Rev. E, vol.59, pp.52-59, 1999. ,
, Analysis Methods for Multi-spacecraft Data, vol.3, 2000.
, Multi-Spacecraft Analysis Methods Revisited. ISSI Scientific Report SR-008, vol.3, 2008.
Characterization of Transitions in the Solar Wind Parameters, Astrophysical Journal, vol.710, pp.1286-1294, 2010. ,
Stationarity in Solar Wind Flows, Astroph. J, vol.714, pp.937-943, 2010. ,
Evidence of Superdiffusive Transport of Electrons Accelerated at Interplanetary Shocks, Astrophysical Journal Letters, vol.671, p.4, 2007. ,
Superdiffusive transport of electrons accelerated at corotating interaction regions, Journal of Geophysical Research (Space Physics), vol.113, p.4, 2008. ,
Ion and electron superdiffusive transport in the interplanetary space, Advances in Space Research, vol.44, pp.465-470, 2009. ,
Ion Superdiffusion at the Solar Wind Termination Shock, Astrophysical Journal Letters, vol.693, pp.118-121, 2009. ,
Magnetic Variances and Pitch-angle Scattering Times Upstream of Interplanetary Shocks, Astroph. J, vol.754, 2012. ,
Superdiffusive shock acceleration, Astroph. J, vol.750, p.4, 2012. ,
Nonclassical transport and particle-field coupling: from laboratory plasmas to the solar wind, Space Science Reviews, vol.4, p.4, 2012. ,
Local characterization of homogeneous turbulence in a space plasma from simultaneous measurements of field components at several points in space, Journal of Geophysical Research, vol.96, issue.2, pp.1789-1802, 1991. ,
Experimental characterization of drift-interchange instabilities in a simple toroidal plasma, Physics of Plasmas, vol.13, issue.10, p.102104, 2006. ,
Particle acceleration at the Sun and in the heliosphere, Space Science Reviews, vol.90, pp.413-491, 1999. ,
In situ evidence of magnetic reconnection in turbulent plasma, Nature Physics, vol.3, pp.236-238, 2007. ,
Estimation of nonlinear transfer functions for fully developed turbulence, Physica D Nonlinear Phenomena, vol.20, issue.86, pp.90036-90045, 1986. ,
Advanced plasma fluctuation analysis techniques and their impact on fusion research, Review of Scientific Instruments, vol.59, pp.1739-1744, 1988. ,
Diagnosis of magnetic structures and intermittency in space-plasma turbulence using the technique of surrogate data, Phys. Rev. E, vol.78, issue.2, p.26402, 2008. ,
Anisotropic Turbulent Spectra in the Terrestrial Magnetosheath as Seen by the Cluster Spacecraft, Physical Review Letters, vol.96, issue.7, p.75002, 2006. ,
Multi-spacecraft investigation of space turbulence: Lessons from Cluster and input to the Cross-Scale mission, Planetary and Space Science, vol.59, pp.585-591, 2011.,
URL : https://hal.archives-ouvertes.fr/hal-00520775
Surrogate time series, Physica D, vol.142, pp.346-382, 2000. ,
A new theory for perpendicular transport of cosmic rays, Astronomy and Astrophysics, vol.470, pp.405-409, 2007. ,
Analyses on the geometrical structure of magnetic field in the current sheet based on cluster measurements, Journal of Geophysical Research (Space Physics), vol.108, p.1168, 2003. ,
Strange kinetics, Nature, vol.363, pp.31-37, 1993. ,
Minimum and Maximum Variance Analysis, ISSI Scientific Reports Series, vol.1, issue.1, pp.185-220, 1998. ,
Intermittency in the solar wind turbulence through probability distribution functions of fluctuations, Geophys. Res. Lett, vol.26, pp.1801-1804, 1999. ,
Intermittency in plasma turbulence, Planet. Space Sci, vol.49, pp.1193-1200, 2001. ,
Statistical analysis of nonlinear wave interactions in simulated Langmuir turbulence data, Annales Geophysicae, vol.21, issue.1, pp.681-692, 2003. ,
Study of edge turbulence in dimensionally similar laboratory plasmas, Physics of Plasmas, vol.11, pp.2558-2564, 2004. ,
In situ multi-satellite detection of coherent vortices as a manifestation of Alfvénic turbulence, Nature, vol.436, pp.825-828, 2005. ,
Current tomography for axisymmetric plasmas, Plasma Physics and Controlled Fusion, vol.50, issue.8, p.85002, 2008. ,
Observations of the turbulence in the scrape-off-layer of Alcator C-Mod and comparisons with simulation, Physics of Plasmas, vol.10, issue.5, pp.1739-1747, 2003. ,
Cross-Field Motion of Plasma Blobs in an Open Magnetic Field Line Configuration, Physical Review Letters, vol.103, issue.6, 2009. ,
The k-filtering technique applied to wave electric and magnetic field measurements from the Cluster satellites, Journal of Geophysical Research (Space Physics), vol.110, p.11224, 2005.,
URL : https://hal.archives-ouvertes.fr/hal-00153404
A Practical Guide to Wavelet Analysis, Bulletin of the American Meteorological Society, vol.79, pp.61-78, 1998. ,
MHD structures, waves and turbulence in the solar wind: Observations and theories, Space Science Reviews, vol.73, pp.1-2, 1995. ,
A review of experimental drift turbulence studies, Plasma Physics and Controlled Fusion, vol.51, issue.11, p.4, 2009. ,
, Characterization of Intermittency in Plasma Edge Turbulence. Contributions to Plasma Physics, vol.48, pp.37-41, 2008.
, Wavelets in Physics, vol.2, 2004.
Systems theory for geospace plasma dynamics, Reviews of Geophysics, vol.44, p.5, 2002. ,
Data mining technique for fast retrieval of similar waveforms in fusion massive databases, Fusion Engineering and Design, vol.83, issue.1, pp.132-139, 2008. ,
MHD turbulence in the solar wind: self-similarity, intermittency and coherent structures, Plasma Physics and Controlled Fusion, vol.41, pp.787-795, 1999. ,
Scaling Laws and Intermittent Structures in Solar Wind Mhd Turbulence, Solar Wind Nine, vol.471, pp.543-545, 1999. ,
Analysis of three-spacecraft data using planar reciprocal vectors: methodological framework and spatial gradient estimation, Annales Geophysicae, vol.27, issue.2, pp.3249-3273, 2009. ,
, Bayesian Inference in Physics. Reviews of Modern Physics, vol.83, pp.943-999, 2011.
Methods of Data Analysis for Resolving Nonlinear Phenomena, Modern Ionospheric Science, p.1, 1996. ,
Radial propagation of structures in drift wave turbulence, Physics of Plasmas, vol.13, issue.12, p.122303, 2006. ,
Structure function analysis of long-range correlations in plasma turbulence, Physics of Plasmas, vol.10, pp.2772-2779, 2003. ,
Chaos and two-dimensional random walk in periodic and quasi-periodic fields, Zhurnal Eksperimental noi i Teoreticheskoi Fiziki (JETP), vol.95, p.4, 1989. ,
Self-similar transport in incomplete chaos, Phys. Rev. E, vol.48, pp.1683-1694, 1993. ,
Anomalous particle diffusion and Lévy random walk of magnetic field lines in threedimensional solar wind turbulence, Plasma Physics and Controlled Fusion, vol.47, pp.755-767, 2005. ,
Superdiffusive and Subdiffusive Transport of Energetic Particles in Solar Wind Anisotropic Magnetic Turbulence, Astroph. J, vol.639, pp.91-94, 2006. ,
Alexandrova, Magnetic Turbulence in the Geospace Environment, Space Science Reviews, vol.156, pp.89-134, 2010. ,
, Anomalous particle transport in the heliosphere. Advances in Space Research, vol.49, p.7, 2012.
Scale-invariant motion in intermittent chaotic systems, Phys. Rev. E, vol.47, p.4, 1993. ,
Search for coherent structure within tokamak plasma turbulence, Physics of Fluids, vol.28, issue.3, pp.974-982, 1985. ,
Edge turbulence measurements in toroidal fusion devices, Plasma Phys. Contr. Fusion, vol.49, issue.1, pp.1-23, 2007. ,
Estimate of convective radial transport due to SOL turbulence as measured by GPI in Alcator C-Mod, Journal of Nuclear Materials, vol.415, issue.1, pp.463-466, 2011. ,