(Table 1) Sea ice and snow characteristics and heat fluxes observed during R/V Aurora Australis cruise to East Antarctica in September/October 2007

The properties of snow on East Antarctic sea ice off Wilkes Land were examined during the Sea Ice Physics and Ecosystem Experiment (SIPEX) in late winter of 2007, focusing on the interaction with sea ice. This observation includes 11 transect lines for the measurement of ice thickness, freeboard, and snow depth, 50 snow pits on 13 ice floes, and diurnal variation of surface heat flux on three ice floes. The detailed profiling of topography along the transects and the d18O, salinity, and density datasets of snow made it possible to examine the snow-sea-ice interaction quantitatively for the first time in this area. In general, the snow displayed significant heterogeneity in types, thickness (mean: 0.14 +- 0.13 m), and density (325 +- 38 kg/m**3), as reported in other East Antarctic regions. High salinity was confined to the lowest 0.1 m. Salinity and d18O data within this layer revealed that saline water originated from the surface brine of sea ice in 20% of the total sites and from seawater in 80%. From the vertical profiles of snow density, bulk thermal conductivity of snow was estimated as 0.15 W/K/m on average, only half of the value used for numerical sea-ice models. Although the upward heat flux within snow estimated with this value was significantly lower than that within ice, it turned out that a higher value of thermal conductivity (0.3 to 0.4 W/K/m) is preferable for estimating ice growth amount in current numerical models. Diurnal measurements showed that upward conductive heat flux within the snow and net long-wave radiation at the surface seem to play important roles in the formation of snow ice from slush. The detailed surface topography allowed us to compare the air-ice drag coefficients of ice and snow surfaces under neutral conditions, and to examine the possibility of the retrieval of ice thickness distribution from satellite remote sensing. It was found that overall snow cover works to enhance the surface roughness of sea ice rather than moderate it, and increases the drag coefficient by about 10%. As for thickness retrieval, mean ice thickness had a higher correlation with ice surface roughness than mean freeboard or surface elevation, which indicates the potential usefulness of satellite L-band SAR in estimating the ice thickness distribution in the seasonal sea-ice zone.

Environmental observations from Station Ssagastyr during the first International Polar Year 1882/83 (digitized tables)

Vorliegender Band enthält die für alle internationalen Polarstationen obligatorischen meteorologischen Beobachtungen der russischen Polarstation an der Lenamündung für den Zeitraum vom 1. September 1882 bis 31. August 1883 und vom 1. September 1883 bis zum 6. Juli 1884.

La memoria como identidad en el cine de Julio Medem : Vacas y Los amantes del círculo polar

El presente artículo es una aproximación a la producción cinematográfica del director vasco Julio Medem, desde una perspectiva que trata de indagar en la importancia que el discurso identitario y el referido a la memoria histórica tienen en dos de sus películas más reconocidas: Vacas y Los amantes del círculo polar. Este trabajo pretende exponer las formas en que Medem aborda el tema de la identidad nacional vasca, proponiendo una relectura en clave alegórica y el papel que desempeña la memoria de la Guerra Civil española en la construcción de estos filmes.

Baseline surface radiation during the International Polar Year 2007-2009

Downwelling and upwelling shortwave and longwave radiation components from six active polar sites, taking part of the Baseline Surface Radiation Network (BSRN), were selected for the period of the last International Polar Year (March 2007 to March 2009), and included in the BSRN-IPY dataset, along with metadata and supplementary data for some of the stations. Two sites, located at Svalbard archipelago (Ny Ålesund) and Alaska (Barrow), represent Arctic sea-level conditions. Four Antarctic stations represent both sea-level (Dronning Maud Land and Cosmonaut Sea) and high-elevation conditions (South Pole and East Antarctic Plateau). The BSRN-IPY dataset content and quality are discussed.

La memoria como identidad en el cine de Julio Medem : Vacas y Los amantes del círculo polar

El presente artículo es una aproximación a la producción cinematográfica del director vasco Julio Medem, desde una perspectiva que trata de indagar en la importancia que el discurso identitario y el referido a la memoria histórica tienen en dos de sus películas más reconocidas: Vacas y Los amantes del círculo polar. Este trabajo pretende exponer las formas en que Medem aborda el tema de la identidad nacional vasca, proponiendo una relectura en clave alegórica y el papel que desempeña la memoria de la Guerra Civil española en la construcción de estos filmes.

La memoria como identidad en el cine de Julio Medem : Vacas y Los amantes del círculo polar

El presente artículo es una aproximación a la producción cinematográfica del director vasco Julio Medem, desde una perspectiva que trata de indagar en la importancia que el discurso identitario y el referido a la memoria histórica tienen en dos de sus películas más reconocidas: Vacas y Los amantes del círculo polar. Este trabajo pretende exponer las formas en que Medem aborda el tema de la identidad nacional vasca, proponiendo una relectura en clave alegórica y el papel que desempeña la memoria de la Guerra Civil española en la construcción de estos filmes.