Academic Articles & Research Papers

The effect of vibrationally excited nitrogen on the low-latitude ionosphere

The first five vibrationally excited states of molecular nitrogen have been included in the Sheffield University plasmasphere ionosphere model. Vibrationally excited molecular nitrogen reacts much more strongly with atomic oxygen ions th...

ANCORA SULLA VELOCITA' DI PROPAGAZIONE DELLE ONDE SUPERFICIALI PER TRAGITTI SUBATLANTICI. TENTATIVO DI PROSPEZIONE PROFONDA DEL BACINO ATLANTICO, MEDIANTE LE CURVE DI DISPERSIONE DELLE ONDE Lq

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Forward-Looking Geometric Configuration Optimization Design for Spaceborne-Airborne Multistatic Synthetic Aperture Radar

Spaceborne-airborne multistatic synthetic aperture radar (SA-MuSAR) has the ability to provide high-resolution forward-looking imagery for receivers, but it relies on careful design of the geometric configuration (GC). In this article, a fo...

GPS network observation of traveling ionospheric disturbances following the Chelyabinsk meteorite blast

We use the Global Positioning System (GPS) network in northwest China and central Asia to monitor traveling ionospheric disturbances (TIDs), which were possibly excited by the large meteorite blast over Chelyabinsk, Russia, on 15 Februar...

Internal Variability Reshapes Externally Forced Trends in Marine Cold‐Air Outbreak Frequency Over the Northern Hemisphere

Abstract Marine cold‐air outbreaks (MCAOs) are key conduits of polar‐to‐midlatitude air‐mass exchange, strongly modulating wintertime air–sea heat fluxes, storm‐track activity, and the development of extreme cold conditions over adjacent co...

<i>Preface</i><br>"10th International Workshop on Technical and Scientific Aspects of MST Radar (MST10)"

A comparative study on chaoticity of equatorial/low latitude ionosphere over Indian subcontinent during geomagnetically quiet and disturbed periods

In the present study, the latitudinal aspect of chaotic behaviour of ionosphere during quiet and storm periods are analyzed and compared by using GPS TEC time series measured at equatorial trough, crest and outside crest stations over India...

Topology and seasonal evolution of the network of extreme precipitation over the Indian subcontinent and Sri Lanka

This paper employs a complex network approach to determine the topology and evolution of the network of extreme precipitation that governs the organization of extreme rainfall before, during, and after the Indian Summer Monsoon (ISM) season...

New trends in active faulting studies for seismic hazard assessment

Advance in Silicon Photomultiplier for All-Digital Positron Emission Tomography

In recent years, silicon photomultipliers (SiPMs) have emerged as preferred photoelectric conversion devices in positron emission tomography (PET) due to their outstanding performance. SiPMs possess single-photon resolution capability and t...

Interplanetary external driven quasidynamo as the origin of geomagnetic jerks correlated with length of day and gravity anomaly

We report phenomenological inevitable correlation between the Sun’s magnetic field oscillation through the Earth and the Jupiter, with sinusoidal geomagnetic jerks observed at the Earth, additionally aligned with the gravity and length of d...

Fluctuation-Response Relation and modeling in systems with fast and slow dynamics

We show how a general formulation of the Fluctuation-Response Relation is able to describe in detail the connection between response properties to external perturbations and spontaneous fluctuations in systems with fast and slow variables. ...

Spatial and temporal distribution of vertical ground movements at Mt. Vesuvius in the period 1973-2009

Since the early ’70s vertical ground movements at Mount Vesuvius area have been investigated and monitored by the Osservatorio Vesuviano (Isti-tuto Nazionale di Geofisica Vulcanologia - Osservatorio Vesuviano since 2001). This monitoring be...

Impact of Urbanization on Cloud Characteristics over Sofia, Bulgaria

Urban artificial surfaces and structures induce modifications in land–atmosphere interactions, affecting the exchange of energy, momentum, and substances. These modifications stimulate urban climate formation by altering the values and dyna...

Vulsino volcanic aquifer in Umbria Region : Hydrogeological survey for the characterization of the presence of arsenic and aluminium and the correct use of groundwater

In December 2009 and the first months of 2010, a large water crisis took place in the Orvieto area, because of sudden high concentration of aluminum (Al) in the groundwater of the vulsino aquifer. This represents a supply for Orvieto’s popu...

Verification of the multi-layer SNOWPACK model with different water transport schemes

The widely used detailed SNOWPACK model has undergone constant development over the years. A notable recent extension is the introduction of a Richards equation (RE) solver as an alternative for the bucket-type approach for describing water...

Длинные волны на шельфе юго-западного побережья о. Сахалин

Рассматриваются результаты изучения длинноволновых движений с периодами более 20 ч на шельфе юго-западного побережья о. Сахалин с использованием полученных в натурных экспериментах временных серий колебаний уровня моря с дискретностью 1 с и...

Geochemical balance of the mineral fraction and statistical analyzes of the Ebolowa municipal lake’s sediments (central Africa): Implication for early diagenesis process

The Ebolowa Municipal Lake (EML) (South Cameroon) in order to identify the early diagenesis processes taking place in the lake and the factors influencing them. To this end, 21 samples were collected. In situ, hydrogen potential, redox pote...

Extreme heat in India and anthropogenic climate change

On 19 May 2016 the afternoon temperature reached 51.0 °C in Phalodi in the northwest of India &ndash; a new record for the highest observed maximum temperature in India. The previous year, a widely reported very lethal heat wave occurred...

O arcabouço estrutural da Bacia Sedimentar do Araripe, Província Borborema, baseado em dados aeromagnetométricos

Este trabalho apresenta uma interpretação atualizada da estruturação interna da Bacia Sedimentar do Araripe, localizada ao sul da porção setentrional da Província Borborema, por meio do processamento e da análise de dados aerogeofísicos de ...