13141 to 13152 of 14086 results
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Reversible interconversion of carbon dioxide and formate by an electroactive enzyme
Read more of: Reversible interconversion of carbon dioxide and formate by an electroactive enzymeCarbon dioxide (CO2) is a kinetically and thermodynamically stable molecule. It is easily formed by the oxidation of organic molecules, during combustion or respiration, but is difficult to reduce. The […]
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Boundary layer physics over snow and ice
Read more of: Boundary layer physics over snow and iceObservations of the unique chemical environment over snow and ice in recent decades, particularly in the polar regions. have stimulated increasing interest in the boundary layer processes that mediate exchanges […]
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Chemistry of the Antarctic boundary layer and the interface with snow: an overview of the CHABLIS campaign
Read more of: Chemistry of the Antarctic boundary layer and the interface with snow: an overview of the CHABLIS campaignCHABLIS (Chemistry of the Antarctic Boundary Layer and the Interface with Snow) was a collaborative UK research project aimed at probing the detailed chemistry of the Antarctic boundary layer and […]
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On the vertical distribution of boundary layer halogens over coastal Antarctica: implications for O3, HOx, NOx and the Hg lifetime
Read more of: On the vertical distribution of boundary layer halogens over coastal Antarctica: implications for O3, HOx, NOx and the Hg lifetimeA one-dimensional chemical transport model has been developed to investigate the vertical gradients of bromine and iodine compounds in the Antarctic coastal boundary layer (BL). The model has been applied […]
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Behaviour of tracer diffusion in simple atmospheric boundary layer models
Read more of: Behaviour of tracer diffusion in simple atmospheric boundary layer models1-D profiles and time series from an idealised atmospheric boundary layer model are presented, which show agreement with boundary layer measurements of polar NOx. Diffusion models are increasingly being used […]
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Halogens and their role in polar boundary-layer ozone depletion
Read more of: Halogens and their role in polar boundary-layer ozone depletionDuring springtime in the polar regions, unique photochemistry converts inert halide salt ions (e.g. Br-) into reactive halogen species (e.g. Br atoms and BrO) that deplete ozone in the boundary […]
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Imaging of firn isochrones across an Antarctic ice rise and implications for patterns of snow accumulation rate
Read more of: Imaging of firn isochrones across an Antarctic ice rise and implications for patterns of snow accumulation rateIt has been an underlying assumption in many studies that near-surface layers imaged by ground-penetrating radar (GPR) can be interpreted as depositional markers or isochrones. It has been shown that […]
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Wind-borne redistribution of snow across an Antarctic ice rise
Read more of: Wind-borne redistribution of snow across an Antarctic ice riseRedistribution of snow by the wind can drive spatial and temporal variations in snow accumulation that may affect the reconstruction of paleoclimate records from ice cores. In this paper we […]
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Fine-scale structure observed in a stable atmospheric boundary layer by SODAR and kite-borne tethersonde
Read more of: Fine-scale structure observed in a stable atmospheric boundary layer by SODAR and kite-borne tethersondeCo-located high resolution profiles of acoustic backscatter, wind vector and potential temperature are presented, measured within the stable atmospheric boundary layer over an Antarctic ice shelf. Acoustic profiles from a […]
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Analysis of acoustic dot echo signature over an Antarctic ice shelf: the possible remote sensing of Antarctic petrels
Read more of: Analysis of acoustic dot echo signature over an Antarctic ice shelf: the possible remote sensing of Antarctic petrelsData from a monostatic acoustic radar operating at British Antarctic Survey’s Halley station on a coastal Antarctic ice shelf show a band of small target echoes at an altitude of […]