Results 61 to 70 of about 1,485 (143)

De GPS al mapa

open access: yesUniciencia, 2004
Las coordenadas Lambert obtenidas a partir de mediciones con equipos GPS de mano, llamados a veces navegadores, en ciertos casos confunden al usuario, por diferir claramente de su posición real al ser graficadas en un mapa del Instituto Geográfico ...
Esteban Dörries
doaj  

ON BORDER REGIONS MAPS MOSAIC USING THE BOUNDARY MAP (1980) ATTACHED TO OSIMO TREATY AS DATA-SOURCE [PDF]

open access: yes, 2010
La cartografia delle regioni transfrontaliere viene sovente a dipendere dal problema dell’eterogeneità dei sistemi cartografici di riferimento, propri degli stati confinanti.
Mastronunzio, Marco
core   +1 more source

Magnetic Connectivity between Active Regions 10987, 10988, and 10989 by Means of Nonlinear Force-Free Field Extrapolation

open access: yes, 2011
Extrapolation codes for modelling the magnetic field in the corona in cartesian geometry do not take the curvature of the Sun's surface into account and can only be applied to relatively small areas, \textit{e.g.}, a single active region.
A. Pevtsov   +36 more
core   +1 more source

Transposição de Datum

open access: yesRevista Brasileira de Cartografia
O presente trabalho trata da determinação dos valores diferenciais das coordenadas geocêntricas entre dois datums geodésicos. Estes valores são determinados pelas fórmulas de R. M.
Victorino Carvalho dos Santos
doaj   +1 more source

Body tides on an elliptical rotating earth [PDF]

open access: yes
The complete tidal response of an elliptical, rotating, elastic Earth is found to contain small displacements which do not fit into the conventional Love number framework.
Wahr, J. M.
core   +1 more source

Nonlinear force-free field modeling of a solar active region using SDO/HMI and SOLIS/VSM data

open access: yes, 2012
We use SDO/HMI and SOLIS/VSM photospheric magnetic field measurements to model the force-free coronal field above a solar active region, assuming magnetic forces to dominate.
A. Pietarila   +18 more
core   +1 more source

Le reti NRTK alla luce del nuovo formato RTCM3 [PDF]

open access: yes, 2008
Le tecniche RTK richiedono formati di trasmissione dati: RTCM è attualmente lo standard indipendente dai formati proprietari dei ricevitori. Le versioni RTCM2.x stentano però a contenere le informazione necessarie per lavorare con reti RTK secondo i ...
Cina, Alberto   +2 more
core  

Nonlinear force-free magnetic field extrapolations: comparison of the Grad-Rubin and Wheatland-Sturrock-Roumeliotis algorithm

open access: yes, 2006
We compare the performance of two alternative algorithms which aim to construct a force-free magnetic field given suitable boundary conditions. For this comparison, we have implemented both algorithms on the same finite element grid which uses Whitney ...
A. Bossavit   +21 more
core   +1 more source

Contribution to the theory of tidal oscillations of an elastic earth. External tidal potential [PDF]

open access: yes
The differential equations of the tidal oscillations of the earth were established under the assumption that the interior of the earth is laterally inhomogeneous. The theory was developed using vectorial and dyadic symbolism to shorten the exposition and
Musen, P.
core   +1 more source

Defining the Middle Corona. [PDF]

open access: yesSol Phys, 2023
West MJ   +41 more
europepmc   +1 more source

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