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Author Guharay, A. ♦ Taori, A. ♦ Taylor, M.
Source Aryabhatta Research Institute of Observational Sciences (ARIES)
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Mesosphere ♦ Nightglow ♦ Wave and Tides ♦ Chemistry
Abstract The mesospheric temperature mapper (MTM) measurements on mesospheric OH (6, 2) and O₂ (0, 1) bandemissions from Maui, Hawaii during July, 2002 show significant day-to-day variability. The nocturnal variabilityreveals prominent wave signatures with a periodicity ranging from 6 to 13 h. Deduced Krassovsky parametersshow significant variability, with ranges of |η| ∼ 1.7–3.9 for the OH data and ∼4.3–13 for the O₂ data. The phasevalues of Krassovsky parameters exhibit larger variability, with variations from approximately −91◦ to +23◦ forthe OH data and −45◦ to −10◦ for the O₂ data. Comparison of these values with existing observations and modelsshow large deviations from model values and relatively better agreements with the observed values reported byother investigators. The deduced vertical wavelength from |η| and φ indicates that our data is mostly dominatedby upward propagating waves with occasional high values ≥100 km, implying possible evanescent waves
Part of series EPS60-973
Educational Use Research
Education Level UG and PG
Learning Resource Type Article