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L'onde de Kelvin équatoriale océanique intrasaisonnière et les événements El Niño du Pacifique central
(Université Toulouse III Paul Sabatier, 2015-07-03)
Le phénomène El Niño est le mode dominant de la variabilité du climat aux échelles de temps interannuelles dans le Pacifique tropical. Il modifie considérablement le climat régional dans les pays voisins, dont le Pérou ...
Monção Sul Americana: Variabilidades e impactos na paleopluviosidade dos Andes orientais durante os últimos 1400 anos a partir de estudos isotópicos em espeleotemas
(Universidade Federal Fluminense, 2014)
The caves located in the Peruvian and Bolivian Andes are characterized by the presence of speleothems providing high potential for high resolution paleoclimate and paleohydrologicall reconstructions, which allow understand ...
Estimación de concentración de lluvia diaria y eventos hidrológicos extremos en cuencas andino-amazónicas empleando precipitación basada en satélites
(Universidad Nacional Agraria La Molina, 2017)
La precipitación concentrada durante varios días tienen un alto potencial para ocasionar erosión del suelo, deslizamientos, inestabilidad de taludes e inundaciones. En la última década, las cuencas andino-amazónicas han ...
Photoelectron transport and energy balance in the low-latitude ionosphere
(Cornell University, 2012)
Theoretical studies of ionospheric structure and dynamics require knowledge of the underlying thermal structure of the ionosphere since it affects the chemical reaction rates, recombination rates, and pressure gradients. ...
Magnitud, frecuencia y factores que controlan los flujos sedimentarios desde los Andes centrales occidentales hacia el Océano Pacífico peruano
(Universidad Nacional Agraria La Molina, 2014)
En el Perú el desarrollo de la hidro-sedimentología en comparación con otras ramas de la hidrología ha sido limitada. El principal reto en el transporte de sedimentos está vinculado a los registros y a la disponibilidad ...
Compréhension des processus magmatiques et localisation de source sismo-volcanique avec des antennes sismiques multicomposantes
(Université de Grenoble, 2013-05-30)
Cette thèse, à la fois méthodologique et appliquée, a été financée par le programme de bourse IRD (l’Institut de Recherche pour le Développement). Elle concerne la localisation des sources liées à l’activité sismique ...
Study of waves observed in the equatorial ionospheric valley region using Jicamarca ISR and VIPIR ionosonde
(University of Illinois at Urbana-Champaign, 2017)
Incoherent scatter (IS) radar and ionosonde (VIPIR, vertical incidence pulsed ionospheric radar) data were taken concurrently at Jicamarca during campaigns of January, April, June, and July 2015, January 2016, and most ...
Ground-Based Observational Techniques for Meteoroid Lunar Impact Generated Electromagnetic Pulses and Lunar Sub-Surface Structure Detection
(The Pennsylvania State University, 2017-08)
The lunar surface is pockmarked with large and small craters mostly formed due to meteoroid impacts on the Moon. Most of the craters formed are not erased with time due to lack of "weathering" processes such as no atmosphere ...
Numerical Simulations And Observations of Equatorial F Region Plasma Irregularities
(Cornell University, 2012-08-20)
This dissertation describes a theoretical, experimental, and modeling investiga- tion of the plasma irregularities in equatorial spread F (ESF). The primary sci- entific objective is to evaluate the electrodynamic nature ...
Characterization of the convective boundary layer through a combination of large-eddy simulations and a radar simulator
(University of Oklahoma, 2011)
The boundary layer (BL) is the lowest part of the atmosphere where the flow field is directly influenced by interactions among air, heat, and the Earths surface. The structure of flow in the BL is dynamic due to the fact ...