Measurements of NOx emissions from the Antarctic snowpack
It has been shown that NOx is produced photochemically within the snowpack of polar regions. If emitted to the atmosphere, this process could be a major source of NOx in […]
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Read more of: Measurements of NOx emissions from the Antarctic snowpack
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The seasonal cycle of sublimation at Halley, Antarctica
Read more of: The seasonal cycle of sublimation at Halley, AntarcticaWe have used micrometeorological data collected at Halley Research Station, Antarctica, to estimate monthly totals of snow sublimation. Direct sublimation from the snow surface is calculated using bulk-transfer formulae, while […]
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A climatological study of internal gravity waves in the atmospheric boundary layer overlying the Brunt Ice Shelf, Antarctica
Read more of: A climatological study of internal gravity waves in the atmospheric boundary layer overlying the Brunt Ice Shelf, AntarcticaInternal gravity waves are frequently observed in stably stratified regions of the atmospheric boundary layer. In order to determine the statistical influence of such waves on the dynamics of the […]
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Peroxyacetyl nitrate (PAN) concentrations in the Antarctic troposphere measured during the photochemical experiment at Neumayer (PEAN’99)
Read more of: Peroxyacetyl nitrate (PAN) concentrations in the Antarctic troposphere measured during the photochemical experiment at Neumayer (PEAN’99)Because investigations of PAN at higher southern latitudes are very scarce, we measured surface PAN concentrations for the first time in Antarctica. During the Photochemical Experiment at Neumayer (PEAN’99) campaign […]
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Profile measurements of blowing snow at Halley, Antarctica
Read more of: Profile measurements of blowing snow at Halley, AntarcticaMeasurements of blowing snow particle concentration from the second Stable Antarctic Boundary Layer Experiment (STABLE 2) are presented. The measurements, made at Halley Station (75.6 degreesS, 26.7 degreesW) throughout the […]
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A humidity climatology for Halley, Antarctica, based on frost-point hygrometer measurements
Read more of: A humidity climatology for Halley, Antarctica, based on frost-point hygrometer measurementsMeasurements of humidity at a height of 4 m were made at Halley Research Station between 1995 and 1997 using a frost point hygrometer. Relative humidities were usually close to […]
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Investigating possible causes of the observed diurnal variability in Antarctic NOy
Read more of: Investigating possible causes of the observed diurnal variability in Antarctic NOyThe occurence of a diurnal variability in measured total oxidised nitrogen (NOy) was observed at Neumayer, Antarctica, (70 degrees 39’8, 8 degrees 15’W) during a recent summer measurement campaign. Minima […]
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Quantitative analysis and interpretation of dot echoes observed with a Doppler sodar
Read more of: Quantitative analysis and interpretation of dot echoes observed with a Doppler sodarWhile some people involved in the acoustic remote sensing field are aware of the possibility of receiving dot echoes from nonatmospheric targets, most of the papers available in the scientific […]
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Observations of solitary waves in the stable atmospheric boundary layer
Read more of: Observations of solitary waves in the stable atmospheric boundary layerLarge amplitude, isolated, wave-like phenomena have been observed in the lowest 40 m of the strongly stably stratified atmospheric boundary layer overlying a coastal Antarctic ice shelf. The waves only […]
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Mechanisms for the acceleration of radiation belt electrons
Read more of: Mechanisms for the acceleration of radiation belt electronsDuring the declining phase of the solar cycle fast solar wind streams produce corotating interaction regions (CIRs) that drive moderate geomagnetic storms. These storms often have an unusually long recovery […]
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The influence of wave-particle interactions on relativistic electron dynamics during storms
Read more of: The influence of wave-particle interactions on relativistic electron dynamics during stormsThis chapter contains sections titled: Introduction to Radiation Belt Variability During Storms Resonant Wave-Particle Interactions Temporal Evolution of Particle Fluxes During a Storm Concluding Remarks