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Global instability in the elliptic restricted three body problem
Elliptic Restricted Three Body problem Arnold diffusion splitting of separatrices Melnikov integral
2015/9/25
The (planar) ERTBP describes the motion of a massless particle (a comet) under the gravitational field of two massive bodies (the primaries, say the Sun and Jupiter) revolving around their center of m...
GPS detection of the instantaneous response of the global ionosphere to strong magnetic storms with sudden commencement
Magnetic field strenght ionospheric disturbances
2015/9/25
Using a new technology for global GPS detection of ionospheric disturbances, GLOBDET, it has been established that a drastic increase in the time derivative of the magnetic field strength during magne...
Testing of the transionospheric radiochannel using data from the global GPS network
total electron content GPS transionospheric radiochannel geomagnetic disturbances space weather
2015/9/17
Using the international ground-based network of two-frequency receivers of the GPS navigation system provides a
means of carrying out a global, continuous and fully-computerized monitoring of phase f...
Numerical simulation of explosive volcanic eruptions from the conduit flow to global atmospheric scales
numerical modeling explosive volcanic eruptions conduit flow multiphase flow simulation stratospheric sulfate aerosol
2015/9/10
Volcanic eruptions are unsteady multiphase phenomena, which encompass many inter-related processes across the
whole range of scales from molecular and microscopic to macroscopic, synoptic and global....
Global seismic tomography and modern parallel computers
Numerical inverse theory seismology global tomography seismic resolution Earth’ s mantle
2015/9/8
A fast technological progress is providing seismic tomographers with computers of rapidly increasing speed and RAM, that are not always properly taken advantage of. Large computers with both shared-me...
NSF and USAID announce latest round of awards to address global development challenges
NSF USAID global development challenges
2015/9/8
Building sustainable fisheries, monitoring landslide risk, studying the emerging bioeconomy: these are some of the research projects announced today in the newest round of an interagency partnership t...
Georeferenced cartography dataset of the La Fossa crater fumarolic field at Vulcano Island (Aeolian Archipelago, Italy):conversion and comparison of data from local to global positioning methods
Fumarole GPS Map Vulcano Island
2015/8/27
The present study illustrates the procedures applied for the coordinate system conversion of the historical fumarole positions at La Fossa crater, to allow their comparison with newly acquired global ...
Global nonlinear optimization for the estimation of static shift and interpretation of 1-D magnetotelluric sounding data
Magnetotelluric sounding global nonlinear optimization static shift TE and TM mode apparent resistivity phase
2015/8/27
In the presence of conducting inhomogeneities in near-surface structures, apparent resistivity data in magnetotelluric sounding can be severely distorted. This is due to electric fields generated from...
Repeat station data compared to a global geomagnetic field model
Geomagnetic repeat station data crustal bias
2015/8/26
Geomagnetic repeat station surveys with local variometers for improved data reductions have been carried out in Germany for about ten years. For nearly the same time interval the satellites Ørste...
EXPLICIT CLASS FIELD THEORY FOR GLOBAL FUNCTION FIELDS
EXPLICIT CLASS FIELD THEORY GLOBAL FUNCTION FIELDS
2015/8/26
Let F be a global function field and let F ab be its maximal abelian extension. Following an approach of D. Hayes, we shall construct a continuous homomorphism ρ: Gal(F ab/F) → CF , where CF is the id...
Spread of endemic disease and global change in an educational project: proposition of relationships developed in a twin partnership
win partnership Dengue fever Education to sustainability Global changes Cape Verde
2015/8/26
The sudden event of the spread of dengue fever (or break-bone fever) that appeared for the first time in Cape Verde in 2009 revealed that inappropriate management of waste can be considered a major ca...
Towards a Global Theory of Singularly Perturbed Dynamical Systems
Perturbed Dynamical System Theory
2015/8/25
Dynamical systems with multiple time scales arise naturally in many domains.
Models of neural systems provide the principal motivation for this
paper. Most of the previous mathematical analysis of q...
Coastal Oceanographic Research:Toward a Global Understanding
Coastal Oceanographic Research Global Understanding
2015/8/19
The 1990s have turned into a decade of intense oceanographic research in the coastal area of the world ocean, that region extending from shorelines and estuaries to the continental rise. Despite sound...
1,800 Years of Global Ocean Cooling Halted by Global Warming
1,800 Years Global Ocean Cooling Halted Global Warming
2015/9/9
Prior to the advent of human-caused global warming in the 19th century, the surface layer of Earth’s oceans had undergone 1,800 years of a steady cooling trend, according to a new study. Dur...
Global Seismic Hazard Assessment Program-GSHAP legacy
Seismic hazard assessment Seismic risk Ground motion Seismology
2015/8/17
Global Seismic Hazard Assessment Program - or simply GSHAP, when launched, almost two decades ago, aimed at establishing a common framework to evaluate the seismic hazard over geographical large-scale...