کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8143290 | 1523926 | 2015 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rotational temperatures of Venus upper atmosphere as measured by SOIR on board Venus Express
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
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چکیده انگلیسی
SOIR is a powerful infrared spectrometer flying on board the Venus Express spacecraft since mid-2006. It sounds the Venus atmosphere above the cloud layer using the solar occultation technique. In the recorded spectra, absorption structures from many species are observed, among them carbon dioxide, the main constituent of the Venus atmosphere. Previously, temperature vertical profiles were derived from the carbon dioxide density retrieved from the SOIR spectra by assuming hydrostatic equilibrium. These profiles show a permanent cold layer at 125Â km with temperatures of ~100Â K, surrounded by two warmer layers at 90 and 140Â km, reaching temperatures of ~200Â K and 250-300Â K, respectively. In this work, temperature profiles are derived from the SOIR spectra using another technique based on the ro-vibrational structure of carbon dioxide observed in the spectra. The error budget is extensively investigated. Temperature profiles obtained by both techniques are comparable within their respective uncertainties and they confirm the vertical structure previously determined from SOIR spectra.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volumes 113â114, August 2015, Pages 347-358
Journal: Planetary and Space Science - Volumes 113â114, August 2015, Pages 347-358
نویسندگان
A. Mahieux, A.C. Vandaele, S. Robert, V. Wilquet, R. Drummond, M.A. López Valverde, M. López Puertas, B. Funke, J.L. Bertaux,