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ESTIMATION OF AERODYNAMIC ROUGHNESS AND ZERO PLANE DISPLACEMENT USING MEDIUM DENSITY OF AIRBORNE LIDAR DATA
Airborne LiDAR Aerodynamic Roughness Length Zero Plane Displacement Forest
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2016/10/14
This paper presents a framework to estimate aerodynamic roughness over specific height (zo/H) and zero plane displacement (d/H) over various landscapes in Kelantan State using airborne LiDAR data. The...
High-density macroseismic survey in urban areas. Part 1: proposal for a methodology and its application to the city of Rome
urban area high-density macroseismic survey questionnaire urban geology Rome
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2015/10/8
The aim of this research is to provide an original contribution to the investigation of local macroseismic variations in urban areas by means of questionnaire surveys. In this paper, we propose a meth...
Electon density profiles of the topside ionosphere
ionograms electron density profiles satellite orbits altitude
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2015/9/25
The existing uncertainties about the electron density profiles in the topside ionosphere, i.e., in the height region from h m F 2 to ~ 2000 km, require the search for new data sources. The ISIS and Al...
An improved bottomside for the ionospheric electron density model NeQuick
ionosphere electron density models profilers
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2015/9/10
The ionospheric electron density model NeQuick is a 玴rofiler?which uses the peaks of the E-layer, the F1-layer
and the F2-layer as anchor points. In the version prepared for and submitted to the Inte...
The TID model for modulation of large scale electron density models
ionosphere electron density models Travelling Ionospheric Disturbances TID model
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2015/9/10
Various modern applications of empirical electron density models need realistic structures of the electron density
distribution with smaller scales than the model background. Travelling Ionospheric D...
Ionospheric topside models compared with experimental electron density profiles
topside ionosphere electron density models topside soundings
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2015/9/10
Recently an increasing number of topside electron density profiles has been made available to the scientific community
on the Internet. These data are important for ionospheric modeling purposes, sin...
Comparison of analytical functions used to describe topside electron density profiles with satellite data
topside ionosphere ionospheric modeling ionospheric layer formulation top side soundings
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2015/9/10
Electron density models of the ionosphere use different analytical formulations for the electron density vertical
profile in the topside. The present paper compares some single-layer topside analytic...
Validation of a method for ionospheric electron density reconstruction by means of vertical incidence data during quiet and storm periods
electron density model vertical incidence ionograms ionospheric data ingestion
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2015/9/10
A preliminary validation of the technique developed using the NeQuick ionospheric model and the 玡ffective ionization
parameter?Az, based on vertical total electron content data ingestion, was carried...
A model assisted ionospheric electron density reconstruction method based on vertical TEC data ingestion
ionospheric data ingestion electrondensity model total electron content
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2015/9/10
A technique to reconstruct the electron density of the ionosphere starting from total electron content values has
been developed using the NeQuick ionospheric electron density model driven by its eff...
Imaging of fast moving electron-density structures in the polar cap
polar cap ionosphere data analysis inverse theory ionospheric storms
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2015/9/2
The imaging of fast-moving electron-density structures in the polar cap presents a unique set of challenges that
are not encountered in other ionospheric imaging problems. GPS observations of total e...
Statistical analysis of automatically detected ion density variations recorded by DEMETER and their relation to seismic activity
Satellite Earthquake interactions and probability
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2015/8/24
Many examples of ionospheric perturbations observed during large seismic events were recorded by the low-altitude satellite DEMETER. However, there are also ionospheric variations without seismic acti...
Evaluation of automatic ionogram scaling for use in real-time ionospheric density profile specification: Dourbes DGS-256/ARTIST-4 performance
Ionosphere Plasma Physics Wave propagation Instruments and techniques
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2015/8/24
Statistical evaluation of the Dourbes (4.6˚E, 50.1˚N) digisonde automatic scaling of the more frequently used ionospheric parameters (foF2, foF1, foE, h’F2, h’F, h’E, and M3000F2) was perfor...
Density-thermal dependence of sedimentary associations calls to reinterpreting detailed gravity surveys
Temperature Density Subvertical zone Gravity anomaly
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2015/8/14
The modern gravimetric equipment allows to register very small effects of gravity field changes and can be applied solving different geological, geophysical and environmental problems. However, someti...
The effect of the stratospheric QBO on the neutral density of the D region
QBO Multiple regression Lower Ionosphere Stratosphere
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2015/8/14
A multiple regression model, which defines relationship between two variables, is used to perform a statistical analysis of the relationship between the stratospheric QBO and the neutral density of th...
Parameterizing deep convection using the assumed probability density function method
Parameterizing deep convection function method
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2015/3/5
Due to their coarse horizontal resolution, presentday climate models must parameterize deep convection. This
paper presents single-column simulations of deep convection
using a probability density f...