Results 21 to 30 of about 13,315 (166)

Geometric potential of cartosat-1 stereo imagery [PDF]

, 2008
Cartosat-1 satellite, launched by Department of Space (DOS), Government of India, is dedicated to stereo viewing for large scale mapping and terrain modelling applications.
Colosimo, Gabriele, Crespi, Mattia Giovanni, Fratarcangeli, Francesca, Giannone, Francesca, Jacobsen, Karsten, Pieralice, Francesca   +5 more
core  

Asymmetries in the Temporal Variation of the Electron Content During a Solar Eclipse

Earth and Space Science, Volume 12, Issue 7, July 2025.
Abstract Solar eclipses offer a unique opportunity to study rapid variations in the Earth's atmosphere. By accurately modeling the timing and magnitude of obscuration caused by the Moon's shadow, we can investigate the eclipse's impact on the behavior of the Earth's ionosphere.
A. Meza, G. Bosch, M. P. Natali, B. Eylenstein, A. Urutti   +4 more
wiley   +1 more source

Red GPS Fiduciaria Nacional de España [PDF]

, 2000
El Instituto Geográfico Nacional, por medio del Área de Geodesia, está llevando a cabo el establecimiento de una Red de Estaciones Permanentes GPS que permitan obtener coordenadas muy precisas, así como sus campos de velocidades en un Sistema de ...
Cano Villaverde, Miguel A., Prieto Morin, Juan Francisco, Quirós Donate, Rafael, Sánchez Sobrino, José A., Valdés Peres de Vargas, Marcelino   +4 more
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Análisis espaciotemporal de la sismicidad en la Península Ibérica y América Central : aplicaciones a la peligrosidad sísmica. [PDF]

, 2015
El presente proyecto fin de carrera trata del estudio de los parámetros de sismicidad en la Península Ibérica y América Central, realizando un análisis de su variación en el espacio y en el tiempo.
Biénzobas García, Pablo, Martínez López, María Dolores   +1 more
core  

Unveiling Ionospheric Response to the May 2024 Superstorm With Low‐Earth‐Orbit Satellite Observations

Space Weather, Volume 23, Issue 4, April 2025.
Abstract The space weather event on 10–11 May 2024 was a high‐impact geomagnetic storm, resulting in a SYM‐H index decrease to −518 nT, the lowest level registered in several decades. We investigated the response of the Earth's ionosphere during the main phase of this storm using a comprehensive data set of ionospheric observations (in situ plasma ...
Irina Zakharenkova, Iurii Cherniak, John J. Braun, Jan‐Peter Weiss, Qian Wu, Teresa VanHove, Douglas Hunt, Maggie Sleziak‐Sallee   +7 more
wiley   +1 more source

Aplicación de las matemáticas en el primer enlace geodésico entre Europa y África [PDF]

, 2008
La figura que más se acerca a la verdadera forma de la tierra es el Geoide, pero su expresión matemática es muy compleja. Por tanto, para poder hacer mediciones sobre ella debe ser sustituida por diversas superficies de referencia más sencillas (planos ...
Almazan Garate, Jose Luis, Primo Lara, Salvador, Verdú Vázquez, Amparo   +2 more
core   +1 more source

Resonant Infrasonic Disturbances in Total‐Electron‐Content During a Severe Thunderstorm on 23 October 2021

Journal of Geophysical Research: Space Physics, Volume 130, Issue 3, March 2025.
Abstract Deep convective clouds and lightning activity during thunderstorms imprint Infrasonic (> ${ >} $3 mili Hertz) oscillations in the ionospheric density or Traveling Ionospheric Disturbances (TIDs). The wave characteristics of these oscillations and the coupling mechanisms remain a subject of investigation, noting that the coupling energetics may
R. H. Honda, E. A. Kherani, C. A. O. B. Figueiredo, E. Astafyeva, C. M. Wrasse, K. P. Naccarato   +5 more
wiley   +1 more source

New Insights on the Crustal Deformation in the Eastern Betics From Densified GNSS Data

Tectonics, Volume 44, Issue 2, February 2025.
Abstract The Eastern Betic cordillera, southeastern Spain, is characterized by slow tectonic deformation rates and moderate seismicity. Great uncertainties persist regarding the precise kinematics of the main fault system within the region, the Eastern Betic Shear Zone (EBSZ). We present a new GNSS (Global Navigation Satellite System) velocity field in
J. Portela, A. Staller, M. Béjar‐Pizarro, J. J. Martínez‐Díaz, J. A. Álvarez‐Gómez, G. Khazaradze   +5 more
wiley   +1 more source

Processo de rotura do sismo Mw 7.0 de 2006 em Moçambique inferido através de dados sísmicos e de SAR. [PDF]

, 2014
This work is about the rupture process of the 2006 earthquake in Mozambique inferred from different types of data (seismic and SAR). We used 38 body waves from tele-seismic stations, two SAR images acquired by ENVISAT satellite and the map of surface ...
Bezzeghoud, Mourad, Borges, José F., Caldeira, Bento, Santos, Rúben   +3 more
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Long Term Global Ionospheric Total Electron Content Trend Analysis

Geophysical Research Letters, Volume 51, Issue 21, 16 November 2024.
Abstract Simulations based on physical models of the thermosphere‐ionosphere system suggest that the ionosphere will sink as the thermosphere cools and contracts in response to increasing greenhouse gas concentrations. As a consequence, long‐term trends can be expected in ionospheric parameters such as: total electron content (TEC), the critical ...
M. Paula Natali, Anabella Urutti, Juan Manuel Castaño, Brunos S. Zossi, Trinidad Duran, Amalia Meza, Ana G. Elias   +6 more
wiley   +1 more source