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Mostrando ítems 21-30 de 182
Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation
(Wiley Blackwell Publishing, Inc, 2019-06)
The interactions between climate and land-use change are dictating the distribution of flora and fauna and reshuffling biotic community composition around the world. Tropical mountains are particularly sensitive because ...
Phytoplankton dynamics based on satellite inherent optical properties and oceanographic conditions in a patagonian gulf frontal system in relation to the adjacent continental shelf waters
(Elsevier, 2021-11)
The dynamics of phytoplankton across a seasonal frontal system formed in San José Gulf (SJG, Patagonia Argentina) and in neighbouring shelf waters was assessed based on bio-optical satellite data (2003–2018) and spring and ...
The use of satellite data in modeling population dynamics and prevalence of infection in the rodent reservoir of Junin virus
(Elsevier Science, 2005-07)
We present the first results of a simple numerical model of rodent population dynamics and viral infection for Junin virus, etiologic agent of Argentine hemorrhagic fever (AHF), in its host, Calomys musculinus. In contrast ...
First surface velocity maps for glaciers of Monte Tronador, North Patagonian Andes, derived from sequential Pléiades satellite images
(International Glaciological Society, 2015-11)
We apply cross-correlation to Pléiades satellite images to generate accurate, highresolution monthly surface velocity maps of Monte Tronador glaciers between March and June 2012. Measured surface displacements cover periods ...
Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
(American Geophysical Union, 2018-08)
We examine the surface and subsurface signature of ocean fronts closely associated with the Malvinas Current dynamics. We first evaluate the performances of the Mercator Ocean eddy permitting (1/12° spatial resolution) ...
Planet formation and stability in polar circumbinary discs
(EDP Sciences, 2019-08)
Dynamical studies suggest that most circumbinary discs (CBDs) should be coplanar (i.e. the rotation vectors of the binary and the disc should be aligned). However, some theoretical works show that under certain conditions ...
A self-consistent weak friction model for the tidal evolution of circumbinary planets
(EDP Sciences, 2019-07)
We present a self-consistent model for the tidal evolution of circumbinary planets that is easily extensible to any other three-body problem. Based on the weak-friction model, we derive expressions of the resulting forces ...
Binary-binary close encounters in the Kuiper Belt
(Wiley Blackwell Publishing, Inc, 2021-07)
Trans-Neptunian binaries are among the objects carrying the most relevant information on the conditions that prevailed in the primitive outer Solar system. However, their present orbital architecture not necessarily reflects ...
Short-term stability of particles in the WD J0914+1914 white dwarf planetary system
(Wiley Blackwell Publishing, Inc, 2020-10)
Nearly all known white dwarf planetary systems contain detectable rocky debris in the stellar photosphere. A glaring exception is the young and still evolving white dwarf WD J0914+1914, which instead harbours a giant planet ...
Tidal evolution of circumbinary systems with arbitrary eccentricities: Applications for Kepler systems
(EDP Sciences, 2020-02)
We present an extended version of the Constant Time Lag analytical approach for the tidal evolution of circumbinary planets introduced in our previous work. The model is self-consistent, in the sense that all tidal ...