منابع مشابه
Radionuclides deposition over Antarctica.
A detailed and comprehensive map of the distribution patterns for both natural and artificial radionuclides over Antarctica has been established. This work integrates the results of several decades of international programs focusing on the analysis of natural and artificial radionuclides in snow and ice cores from this polar region. The mean value (37+/-20 Bq m(-2)) of (241)Pu total deposition ...
متن کاملConvective Boundary Layer Heights Over Mountainous Terrain—A Review of Concepts
Mountainous terrain exerts an important influence on the Earth’s atmosphere and affects atmospheric transport and mixing at a wide range of temporal and spatial scales. The vertical scale of this transport and mixing is determined by the height of the atmospheric boundary layer, which is therefore an important parameter in air pollution studies, weather forecasting, climate modeling, and many o...
متن کاملGround Layer Adaptive Optics Performance in Antarctica
Ground layer Adaptive Optics (GLAO) is a new variant of adaptive optics that aims at correcting the seeing over a wide field of view by conjugating the deformable mirror to the boundary layer altitude.The South Pole is expected to be particularly to GLAO due to the absence of high altitude jets and the confinement of 96% of the seeing within a 220 m boundary layer. We present here the compariso...
متن کاملFour decades of ozonesonde measurements over Antarctica
[1] Ozonesonde observations from Syowa and the South Pole over more than 40 years are described and intercompared. Observations from the two sites reveal remarkable agreement, supporting and extending the understanding gained from either individually. Both sites exhibit extensive Antarctic ozone losses in a relatively narrow altitude range from about 12 to 24 km in October, and the data are con...
متن کاملMicrowave Wind Direction Retrieval over Antarctica
Over large regions of Antarctica, ice sheet and bedrock topography and the snow deposition, drift, and erosional environment combine to produce roughness on various scales. The roughness influences the microwave backscattering and emission properties of the surface, introducing azimuth-angle dependencies in the satellite observation data. In this paper we explore the use of data from SeaWinds o...
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ژورنال
عنوان ژورنال: Australian Journal of Physics
سال: 1964
ISSN: 0004-9506
DOI: 10.1071/ph640257