990 resultados para Funck, Carl, 1852-1918.
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Fil: Manzo Guaquil, Luis. Universidad de Valparaíso
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Fil: Massini Correas, Carlos I.. Universidad de Mendoza
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An integrated instrument package for measuring and understanding the surface radiation budget of sea ice is presented, along with results from its first deployment. The setup simultaneously measures broadband fluxes of upwelling and downwelling terrestrial and solar radiation (four components separately), spectral fluxes of incident and reflected solar radiation, and supporting data such as air temperature and humidity, surface temperature, and location (GPS), in addition to photographing the sky and observed surface during each measurement. The instruments are mounted on a small sled, allowing measurements of the radiation budget to be made at many locations in the study area to see the effect of small-scale surface processes on the large-scale radiation budget. Such observations have many applications, from calibration and validation of remote sensing products to improving our understanding of surface processes that affect atmosphere-snow-ice interactions and drive feedbacks, ultimately leading to the potential to improve climate modelling of ice-covered regions of the ocean. The photographs, spectral data, and other observations allow for improved analysis of the broadband data. An example of this is shown by using the observations made during a partly cloudy day, which show erratic variations due to passing clouds, and creating a careful estimate of what the radiation budget along the observed line would have been under uniform sky conditions, clear or overcast. Other data from the setup's first deployment, in June 2011 on fast ice near Point Barrow, Alaska, are also shown; these illustrate the rapid changes of the radiation budget during a cold period that led to refreezing and new snow well into the melt season.
Meteorological observations during EUROPA cruise from Batavia to Brouwershaven started at 1852-08-04
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En esta ponencia realizamos una breve mirada panorámica alrededor de las dimensiones militares de la Primera Guerra Mundial. Repasamos los principales objetivos políticos de los contendientes, la articulación de los distintos ejes geopolíticos, la preparación bélica de las potencias enfrentadas, el aprendizaje de las distintas fuerzas a medida que se desarrollaba la guerra, las diferentes dinámicas de cada uno de los frentes de batalla y los modos en que se produjo y luego entró en crisis el apoyo popular al esfuerzo bélico. Por otra parte, también transitamos la cuestión de la diferencia entre la guerra esperada y la lógica de guerra total que adquirió el conflicto. Al mismo tiempo, y en íntima relación con estos dos últimos puntos, también recordamos el quiebre político de varios imperios y el ascenso del socialismo con la victoria soviética y las revoluciones en varios países europeos. Finalmente hacemos algunas consideraciones acerca de la victoria de la Entente sobre sus enemigos, buscando variables que expliquen el resultado de la confrontación, como también para ver el modo en que tales resultados no significaron la apertura de una era de paz, sino de numerosas confrontaciones