Academic Articles & Research Papers

A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region

This work presents an analysis of the ionospheric responses to the solar eclipse that occurred on 14 December 2020 over the Brazilian sector. This event partially covers the south of Brazil, providing an excellent opportunity to study the m...

Snow Depth Retrieval Using Detrended SNR From GNSS-R With Bidirectional GRU

Snow depth monitoring is crucial for hydrology, climate research, and avalanche prediction. While traditional global navigation satellite system (GNSS) reflectometer methods offer cost-effective snow thickness retrieval, they suffer from po...

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...

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...

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...

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...

Physical Oceanography: The Shift to a Global View and Its Changing Culture

Abstract Many changes took place in physical oceanography over the last 60 years, as the science encountered the global‐scale problems of climate and in the availability of numerous new technologies. Changes have been in the known science, ...

Changes in the Association between GDP and Night-Time Lights during the COVID-19 Pandemic: A Subnational-Level Analysis for the US

Night-time light (NTL) data have been widely used as a remote proxy for the economic performance of regions. The use of these data is more advantageous than the traditional census approach is due to its timeliness, low cost, and comparabili...

Air distribution to reduce nitrogen oxide emissions in the furnace of a boiler with tangential combustion scheme

Relevance. Determined by the importance of analyzing the combustion characteristics and factors affecting the emission of nitrogen oxides (NOx) in the furnace chamber of pulverized coal-fired power boiler unit when installing tertiary air n...

The cause of high intensity of seismicity in Ukraine

In the article, the earthquake near Sumy is considered in detail. According to the authors, this earthquake occurred under the influence of several stress regimes. At the regional level: it is related to the transfer of stresses from the Vr...

Metallogenic potential and prospecting of orogenic gold deposits in the Shuihouling area of the Dabie Orogenic Belt: A geochemical evidence from stream sediment anomalies

The Shuihouling ductile shear zone, located in the core of the Dabie Orogenic Belt spanning Anhui and Hubei provinces, is a key structural unit with notable mineral potential. Situated within the Wudang-Tongbai-Dabie Mo-REE-Au-Ag-Pb-Zn poly...

Sources of Contaminants of Emerging Concern in Groundwater of Barcelona Urban Area

Groundwater is a vital resource for the development of urban areas, where the problem focuses on the quantity and on the quality of this freshwater resource. Barcelona is a good example as because currently groundwater is used for irrigatio...

Compilation of Apatite Fission-Track Data from the Northeast Atlantic Realm: A Jigsaw Puzzle with Missing Pieces

The northeast (NE) Atlantic is one of the best-studied geological regions in the world, incorporating a wide array of geological phenomena including extensional tectonism, passive margin development, orogenesis, and breakup-related volcanis...

Analytical solutions of steady-state temperature field for large-section freezing with rectangular layout of single-ring holes

The temperature field is the basis for assessing the mechanical state and water-sealing performance of the frozen wall, which is an important research direction of the artificial freezing theory. For the freezing pipes in the form of a clos...

Dynamic characteristics of unsaturated loess and their influences on ground vibration parameters of sites

The dynamic triaxial tests on the unsaturated loess in Xiji region of Ningxia under different water contents are carried out. Based on the analysis of the influences of water content on the dynamic characteristics of loess, the influences o...