منابع مشابه
Collision dynamics and uptake of water on alcohol-covered ice
Molecular scattering experiments are used to investigate water interactions with methanol and n-butanol covered ice between 155 K and 200 K. The inelastically scattered and desorbed products of an incident molecular beam are measured and analyzed to illuminate molecular scale processes. The residence time and uptake coefficients of water impinging on alcohol-covered ice are calculated. The surf...
متن کاملMethane oxidation at the water-ice interface of an ice-covered lake
Lakes are important components of the global methane (CH4) cycle. In seasonally ice-covered lakes, CH4 transported by ebullition (bubbling) from anoxic sediments gets trapped at the water-ice interface. If not oxidized by methane-oxidizing bacteria (MOB), this can potentially lead to high episodic CH4 emissions at icemelt. To understand the fate of CH4 trapped below ice, we measured depth-distr...
متن کاملLife in ice-covered oceans.
Recent evidence for salt-water oceans beneath the ice crusts of Europa and Callisto (1, 2) has bolstered speculation that these satellites of Jupiter may harbor life (3,4). Attention has focused on Europa. The geology and young age of its surface (5,6) and the predicted heat flow from radiogenic decay and tidal dissipation (7,8) suggest a geologically active interior and liquid water at shallow...
متن کاملTides of global ice-covered oceans
The tides of an ice-covered ocean are examined using a Cartesian representation of the elastic and fluid equations. Although unconstrained by any observations, the ocean tides of a Neoproterozoic “snowball” Earth could have been significantly larger than they are today. Time-mean tidal-residual circulations would then have been set up that are competitive with the circulation driven by geotherm...
متن کاملOxygen budget of a perennially ice-covered Antarctic lake.
A bulk O2 budget for Lake Hoare, Antarctica, is presented. Five years of seasonal data show the lake to be persistently supersaturated with O2. Oxygen is carried into the lake in glacial meltstreams and is left behind when this water is removed as ice by ablation and sublimation. A diffusive loss of O2 from the lake through the summer moat is suggested. Measured values of the total O2 in the...
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ژورنال
عنوان ژورنال: Oceanography
سال: 2011
ISSN: 1042-8275
DOI: 10.5670/oceanog.2011.67