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The effects of f0 F2 variability on TEC prediction accuracy
ionopshere ionospheric modelling
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2015/9/25
In this paper hourly daily F2-layer critical frequency data recorded at Rome and one minute daily TEC data recorded at Florence were used and the relevant variabiles were calculated. It was concluded ...
A coupling alternative to reactive transport simulations for long-term prediction of chemical reactions in heterogeneous CO2 storage systems
transport simulations chemical reactions
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2015/3/5
Fully coupled, multi-phase reactive transport simulations of CO2 storage systems can be approximated by
a simplified one-way coupling of hydrodynamics and reactive chemistry.
Neural-network-based prediction techniques for single station modeling and regional mapping of the foF2 and M(3000)F2 ionospheric characteristics
Neural-network-based prediction techniques single station modeling regional mapping ionospheric characteristics
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2009/11/12
In this work, Neural-Network-based single-station hourly daily foF2 and M(3000)F2 modelling of 15 European ionospheric stations is investigated. The data used are neural networks and hourly daily valu...
Neural network prediction of geomagnetic activity:a method using local Hölder exponents
Neural network prediction geomagnetic activity local Hö lder exponents
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2009/11/12
Local scaling and singularity properties of solar wind and geomagnetic time series were analysed using Hölder exponents . It was shown that in analysed cases due to the multifractality of fluctua...
Time-dependent prediction degredation assessment of neural-networks-based TEC forecasting models
Time-dependent prediction degredation assessment neural-networks-based TEC forecasting models
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2009/11/12
An estimation of the difference in TEC prediction accuracy achieved when the prediction varies from 1 h to 7 days in advance is described using classical neural networks. Hourly-daily Faraday-rotation...
Prediction of magnetic storm events using the Dst index
Prediction magnetic storm events Dst index
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2009/11/11
This paper provides a method to predict magnetic storm events based on the time series of the Dst index over the period 1981-2002. This method is based on the multiple scaling of the measure represent...
Short-term prediction of rain attenuation level and volatility in Earth-to-Satellite links at EHF band
Short-term prediction rain attenuation level Earth-to-Satellite links EHF band
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2009/11/2
This paper shows how nonlinear models originally developed in the finance field can be used to predict rain attenuation level and volatility in Earth-to-Satellite links operating at the Extremely High...
Spatiotemporal characterization of Ensemble Prediction Systems–the Mean-Variance of Logarithms (MVL) diagram
Spatiotemporal characterization Ensemble Prediction Systems MVL diagram
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2009/10/30
We present a novel approach to characterize and graphically represent the spatiotemporal evolution of ensembles using a simple diagram. To this aim we analyze the fluctuations obtained as differences ...
Prediction,Detection and Regional Assessment of Anthropogenic Climate Change
Climate Change Anthropogenic Detection
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2009/6/12
Prediction,Detection and Regional Assessment of Anthropogenic Climate Change.
Using Numerical Weather Prediction Model Derived Troposphere Slant Delays in GPS Processing:a Case Study
global positioning system (GPS) tropospheric delay numerical weather model(NWM)
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2009/6/9
The troposphere is one of the most significant sources of error in precise GPS (Global Positioning System) positioning solutions nowadays. Uncertainties in troposphere estimation distort the height co...