کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6343824 | 1620536 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selection of cloudless sky conditions by applying solar global ultraviolet irradiance measurements
ترجمه فارسی عنوان
انتخاب شرایط آسمان غیر قابل پیش بینی با استفاده از اندازه گیری های تابش خورشیدی جهانی اشعه ماوراء بنفش
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
چکیده انگلیسی
Taking advantage of UV (295-385Â nm) irradiance measurements is one of the objectives of this paper. A new index termed ktâ³ is established for this band. This new index works as a 'zenith angle independent clearness index' for band measurements and has similar applications to those of ktâ² for broadband measurements. The new index may be applied to identify cloudless instants from UV band measurements. Both indexes were correlated throughout the period 1998-2004 with a R2 of 0.85. A selection criterion of ktâ³UV >Â 1.1 classified cloudless sky conditions with a probability of 95% in comparison with a selection that two criteria-applying broadband measurements would make. This index may be of interest for classifying cloudless sky conditions when only UV band measurements are available. An estimation method from the literature was applied to the period 1998-2004. This method was previously validated for the UV band with a measurement campaign made in Valencia (Spain) in the summer season.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volumes 132â133, OctoberâNovember 2013, Pages 291-298
Journal: Atmospheric Research - Volumes 132â133, OctoberâNovember 2013, Pages 291-298
نویسندگان
MarÃa-Antonia Serrano, José V. Boscà ,