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A New Evapotranspiration Model Accounting for Advection and Its Validation during SMEX02
المؤلفون المشاركون
Qi, Jianwei
Yang, Yongmin
Su, Hongbo
Zhang, Renhua
Wu, Jianjun
المصدر
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-12-12
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
Based on the crop water stress index (CWSI) concept, a new model was proposed to account for advection to estimate evapotranspiration.
Both local scale evaluation with sites observations and regional scale evaluation with a remote dataset from Landsat 7 ETM+ were carried out to assess the performance of this model.
Local scale evaluation indicates that this newly developed model can effectively characterize the daily variations of evapotranspiration and the predicted results show good agreement with the site observations.
For all the 6 corn sites, the coefficient of determination (R2) is 0.90 and the root mean square difference (RMSD) is 58.52W/m2.
For all the 6 soybean sites, the R2 and RMSD are 0.85 and 49.46W/m2, respectively.
Regional scale evaluation shows that the model can capture the spatial variations of evapotranspiration at the Landsat-based scale.
Clear spatial patterns were observed at the Landsat-based scale and are closely related to the dominant land covers, corn and soybean.
Furthermore, the surface resistance derived from instantaneous CWSI was applied to the Penman-Monteith equation to estimate daily evapotranspiration.
Overall, results indicate that this newly developed model is capable of estimating reliable surface heat fluxes using remotely sensed data.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yang, Yongmin& Su, Hongbo& Zhang, Renhua& Wu, Jianjun& Qi, Jianwei. 2013. A New Evapotranspiration Model Accounting for Advection and Its Validation during SMEX02. Advances in Meteorology،Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-468254
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Yang, Yongmin…[et al.]. A New Evapotranspiration Model Accounting for Advection and Its Validation during SMEX02. Advances in Meteorology No. 2013 (2013), pp.1-13.
https://search.emarefa.net/detail/BIM-468254
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yang, Yongmin& Su, Hongbo& Zhang, Renhua& Wu, Jianjun& Qi, Jianwei. A New Evapotranspiration Model Accounting for Advection and Its Validation during SMEX02. Advances in Meteorology. 2013. Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-468254
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-468254
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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