31 citations · 48 across the 12 of their papers we have counts for
12 papers
Total electron content PCA-NN model for middle latitudes
Anna Morozova, Teresa Barata, Tatiana Barlyaeva +1
A regression-based model was previously developed to forecast the total electron content (TEC) at middle latitudes. We present a more sophisticated model using neural networks (NN)…
PCA-MRM model to forecast TEC at middle latitudes
Anna L. Morozova, Teresa Barata, Tatiana Barlyaeva
The total electron content (TEC) over the Iberian Peninsula was modelled using PCA-MRM models based on decomposition of the observed TEC series using the principal component analys…
Principal component analysis as a tool to extract Sq variation from the geomagnetic field observations: conditions of applicability
Anna Morozova, Rania Rebbah
In this paper, we analyze the applicability of the principal component analysis (PCA) as a tool to extract the Sq variation of the geomagnetic field. We tested different geomagneti…
Comparison of the solar variations of the geomagnetic field at the Coimbra Magnetic Observatory (COI) obtained by different methods: effect of the solar and geomagnetic activity
Anna Morozova, Rania Rebbah
Here we present the results of the comparative analysis of the regular daily variations of the geomagnetic field, Sq and SD, obtained from the observations with two methods: (1) us…
Datasets of the solar quiet (Sq) and solar disturbed (SD) variations of the geomagnetic field from the mid latitudinal Magnetic Observatory of Coimbra (Portugal) obtained by different methods
Anna Morozova, Rania Rebbah, Paulo Ribeiro
Here we present datasets of daily variation obtained from the geomagnetic field raw observations recorded at the Coimbra Magnetic Observatory (COI, Portugal) in 2007-2017, covering…
Datasets of ionospheric parameters provided by SCINDA GNSS receiver from Lisbon airport area
Tatiana Barlyaeva, Teresa Barata, Anna Morozova
Here we present datasets provided by a SCINDA GNSS receiver installed in the Lisbon airport area from November of 2014 to July of 2019. The installed equipment is a NovAtel EURO4 w…
Variations of TEC over Iberian Peninsula in 2015 due to geomagnetic storms and solar flares
Anna L. Morozova, Tatiana V. Barlyaeva, Teresa Barata
The total ionospheric content (TEC) over the Iberian Peninsula was studied using data from two locations obtained both by GNSS receivers and an ionosonde. The principal component a…
"SCINDA-Iono" toolbox for MATLAB: analysis of ionosphere scintillations
Tatiana Barlyaeva, Teresa Barata, Anna Morozova
Here we present a "SCINDA-Iono" toolbox for the MATLAB. This is a software to analyze ionosphere scintillation indices provided by a SCINDA GNSS receiver. The toolbox is developed…
Temperature and pressure variability in mid-1 latitude low atmosphere and stratosphere-ionosphere coupling
Anna L. Morozova, Paulo Ribeiro, Juan Jose Blanco +1
This study presents the continuation of the analysis of variations of atmospheric and space weather parameters above Iberian Peninsula along two years near the 24th solar cycle max…
TRAGALDABAS. First results on cosmic ray studies and their relation with the solar activity, the Earth magnetic field and the atmospheric properties
J. A. Garzón, J. Collazo, J. Cuenca-García +21
Cosmic rays originating from extraterrestrial sources are permanently arriving at Earth atmosphere, where they produce up to billions of secondary particles. The analysis of the se…
Variability modes in core flows inverted from geomagnetic field models
Alexandra Pais, Anna Morozova, Nathanaël Schaeffer
The flow of liquid metal inside the Earth's core produces the geomagnetic field and its time variations. Understanding the variability of those deep currents is crucial to improve…
Long-time temperature variations in Portugal over the last 140 years and the effect of the solar activity
A. L. Morozova, P. Thejll, M. A. Pais
We present the analysis of temperature variations in Portugal for 140 years (from 1865 to 2005). The two stations with the longest time series of temperature measurements (Lisbon a…