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Low velocity and low electricalresistivity layers in the middle crust
seismic and electromagnetic studies Earth's crust Baltic and Ukranian shields
2015/9/14
Some Deep Seismic Sounding (DSS) revealed low velocity layers in the upper and middle crust of old platforms.The layers are often characterised by a lower electrical resistivity. It is not clear, howe...
Midnight variations of spreading of ionospheric sporadic E-layers before earthquakes
earthquake precursors Es-spread data analysis
2015/8/24
In the present study, ionospheric phenomena caused by earthquakes of magnitudes M >4.0 were investigated. Night-time observations of the spreading of sporadic E-layers (Es-spread) performed every 15 m...
Some remarks about lidar data preprocessing and different implementations of the gradient method for determining the aerosol layers
Lidar Aerosol Wavelet Preprocessing
2015/8/17
The determination of atmospheric aerosol layers from lidar returns is possible through automated algorithms. This product is useful, for example, in monitoring the Boundary Layer Height (BLH) as well ...
Spectral‐element simulations of long‐term fault slip: Effect of low‐rigidity layers on earthquake‐cycle dynamics
Spectral‐element simulations of long‐term fault slip low‐rigidity layers earthquake‐cycle dynamics
2014/4/8
We develop a spectral element method for the simulation of long‐term histories of spontaneous seismic and aseismic slip on faults subjected to tectonic loading.
Our approach reproduces all stages of ...
Prediction and evaluation of nonlinear site response with potentially liquefiable layers in the area of Nafplion (Peloponnesus, Greece) for a repeat of historical earthquakes
Prediction and evaluation nonlinear site response potentially liquefiable layers Nafplion repeat of historical earthquakes
2011/1/19
We examine the possible non-linear behaviour of potentially liquefiable layers at selected sites located within the expansion area of the town of Nafplion, East Peloponnese, Greece. Input motion is co...
Double layers in the downward current region of the aurora
Double layers downward current region aurora
2009/11/11
Direct observations of magnetic-field-aligned (parallel) electric fields in the downward current region of the aurora provide decisive evidence of naturally occurring double layers. We report measurem...
Universal dependences between turbulent and mean flow parameters instably and neutrally stratified Planetary Boundary Layers
Universal dependences mean flow parameters stratified Planetary Boundary Layers
2009/11/9
We consider the resistance law for the planetary boundary layer (PBL) from the point of view of the similarity theory. In other words, we select the set of the PBL governing parameters and search for ...
Electrostatic solitary waves in current layers:from Cluster observations during a super-substorm to beam experiments at the LAPD
Electrostatic solitary waves current layers Cluster observations super-substorm beam experiments
2009/10/30
Electrostatic Solitary Waves (ESWs) have been observed by several spacecraft in the current layers of Earth's magnetosphere since 1982. ESWs are manifested as isolated pulses (one wave period) in the ...
Extending the Similarity Theory for Atmospheric Boundary Layers: Contribution from Background Stratification
Atmospheric boundary layer similarity theory turbulence stratification effects
2009/6/10
The structure of the atmospheric boundary layer has traditionally been described using only surface fluxes and the Coriolis parameter. We review here the proposal of Kitaigorodskii (1988) and Kitaigor...