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Vertical Transport of Sensible Heat and Meteoric Na by the Complete Temporal Spectrum of Gravity Waves in the MLT Above McMurdo (77.84°S, 166.67°E), Antarctica
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2022
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Source: Journal of Geophysical Research: Atmospheres, 127(16)
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Journal Title:Journal of Geophysical Research: Atmospheres
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Description:We report the first lidar observations of vertical fluxes of sensible heat and meteoric Na from 78 to 110 km in late May 2020 at McMurdo, Antarctica. The measurements include contributions from the complete temporal spectrum of gravity waves and demonstrate that wave-induced vertical transport associated with atmospheric mixing by non-breaking gravity waves, Stokes drift imparted by the wave spectrum, and perturbed chemistry of reactive species, can make significant contributions to constituent and heat transport in the mesosphere and lower thermosphere (MLT). The measured sensible heat and Na fluxes exhibit downward peaks at 84 km (−3.0 Kms −1 and −5.5 × 10 4 cm −2s −1) that are ∼4 km lower than the flux peak altitudes
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Source:Journal of Geophysical Research: Atmospheres, 127(16)
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ISSN:2169-897X;2169-8996;
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Rights Information:CC BY-NC-ND
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Compliance:Library
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