کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6537639 | 158339 | 2014 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Environmental factors affecting the accuracy of surface fluxes from a two-source model in Mediterranean drylands: Upscaling instantaneous to daytime estimates
ترجمه فارسی عنوان
عوامل محیطی موثر بر دقت شار سطحی از یک مدل دو منبع در خشکی دریای مدیترانه: برآورد روزانه به روز
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کلمات کلیدی
شار حرارتی معقول، شار گرما خنثی، دمای سطح، خشکی مناطق دریایی، مدل دو منبع،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
چکیده انگلیسی
Finally, two extrapolation methods to obtain daytime (Rn > 55 W mâ2) turbulent fluxes from the 15-min estimates of TSM were compared: (i) assuming the self-preservation of the evaporative and the non-evaporative fraction (EF and NEF method) and (ii) averaging the total daytime instantaneous fluxes (Averaging method). Despite the assumption of daytime self-preservation of EF and NEF was showed consistent, this method retrieved less accurate daytime estimates of H, and E than the Averaging method as a result of inaccuracies affecting estimates of EF and NEF from the TSM at our site. Moreover, better daytime estimates of H and E were obtained when using instantaneous fluxes from the TSMP than from the TSMS. Thus, reliable daytime estimates of H were obtained from the TSMP in a Mediterranean dryland, with mean errors of 20% and high correlations (R2 = 0.85). However, daytime E was strongly overestimated (125%) using the TSM by both methods, although a good correlation with eddy covariance measurements was found (R2 = 0.84).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agricultural and Forest Meteorology - Volumes 189â190, 1 June 2014, Pages 140-158
Journal: Agricultural and Forest Meteorology - Volumes 189â190, 1 June 2014, Pages 140-158
نویسندگان
Laura Morillas, Luis VillagarcÃa, Francisco Domingo, Héctor Nieto, Olga Uclés, Mónica GarcÃa,