Hans Richter, Brustbild

Signatur des Originals: S 36/G02013

Hans Richter, Brustbild

Signatur des Originals: S 36/G02014

Hans Georg Nägeli, Brustbild

Signatur des Originals: S 36/G01753

Hans Christian Lumbye, Brustbild

Signatur des Originals: S 36/G03345

Hans von Bülow, Brustbild

Signatur des Originals: S 36/G03960

Karl Hoffmann, Josef Suk, Hans Wihan, Jiří Herold, Gruppenbildnis, Tschechisches Streichquartett

Signatur des Originals: S 36/G04475

Hans Pfitzner, Brustbild

Signatur des Originals: S 36/G04576

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv' 1430 - Universitätsvorlesung: Metaphysik des Schönen

Bereitgestellt mit freundlicher Unterstützung der Staatsbibliothek zu Berlin - Preußischer Kulturbesitz

Rastros de Hierro : notas para un itinerario de la recepción de Hans Freyer en la Argentina

El propósito del artículo es brindar un informe bibliográfico preliminar sobre el itinerario de la recepción de Hans Freyer en la Argentina, con el fin de arrojar luz sobre una figura del pensamiento alemán de la primera mitad del siglo XX que tuvo una repercusión soterrada en muchos intelectuales argentinos del periodo. Esa presencia se encuentra en gran parte oculta para la historia de las ideas argentinas, dada su problemática inscripción doctrinaria e ideológica en las políticas de la filosofía y en las políticas de las ciencias sociales.

Horizontal profiles of longwave and shortwave radiation components over sea ice near Barrow, Alaska during the 2011 melt

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.