کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5431030 1397432 2006 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temperature-dependent cross sections of O2-O2 collision-induced absorption resonances at 477 and 577 nm
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
Temperature-dependent cross sections of O2-O2 collision-induced absorption resonances at 477 and 577 nm
چکیده انگلیسی

Two collision-induced absorption features of oxygen have been investigated by means of the laser-based cavity ring-down technique at pressures between 0 and 1000 hPa and at temperatures in the range 184-294 K. Peak cross sections, resonance widths and integrated cross sections, as well as spectral profiles, have been determined for the broad O2-O2 resonances centered at 477 and 577 nm. Results are compared with previous measurements to establish an updated temperature dependence for the cross sections of both resonances, yielding integrated cross sections, that exhibit a minimum near 200 K and that increase in a near-linear fashion in the atmospherically relevant range of 200-300 K. A significant increase in the widths of the resonance profiles upon temperature increase is firmly established. Parameters and temperature-dependent trends for the shape and strengths of the resonances are produced, that can be implemented in cloud retrieval in atmospheric Earth observation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 98, Issue 3, April 2006, Pages 405-424
نویسندگان
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