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Numerical Simulation of Surface Energy and Water Balances over a Semiarid Grassland Ecosystem in the West African Savanna
المؤلفون المشاركون
Annor, Thompson
Quansah, Emmannuel
Katata, Genki
Mauder, Matthias
Amekudzi, Leonard K.
Bliefernicht, Jan
Heinzeller, Dominikus
Balogun, Ahmed A.
Kunstmann, Harald
المصدر
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-01-03
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
To understand surface energy exchange processes over the semiarid regions in West Africa, numerical simulations of surface energy and water balances were carried out using a one-dimensional multilayer atmosphere-SOil-VEGetation (SOLVEG) model for selected days of the dry and rainy seasons over a savanna grassland ecosystem in Sumbrungu in the Upper East region of Ghana.
The measured Bowen ratio was used to partition the residual energy into the observed sensible heat flux ( H ) and latent heat flux (LE) in order to investigate the impact of the surface energy closure on model performance.
The results showed that the model overall reproduced the diurnal changes in the observed energy fluxes, especially the net radiation (Rn), compared to half-hourly eddy covariance flux measurements, for the study periods.
The performance measure in terms of the correlation coefficient ( R ), centred root mean square error (RMSE), and normalized standard deviation (σ) between the simulated H and LE and their corresponding uncorrected observed values ranged between R = 0.63–0.99 and 0.83–0.94, RMSE = 0.88–1.25 and 0.88–1.92, and σ = 0.95–2.23 and 0.13–2.82 for the dry and rainy periods respectively, indicating a moderate to good model performance.
The partitioning of H and LE by SOLVEG was generally in agreement with the observations during the dry period but showed clear discrepancies during the rainy period, particularly after rainfall events.
Further sensitivity tests over longer simulation periods (e.g., 1 year) are required to improve model performance and to investigate seasonal exchanges of surface energy fluxes over the West African Savanna ecosystems in more details.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Quansah, Emmannuel& Katata, Genki& Mauder, Matthias& Annor, Thompson& Amekudzi, Leonard K.& Bliefernicht, Jan…[et al.]. 2017. Numerical Simulation of Surface Energy and Water Balances over a Semiarid Grassland Ecosystem in the West African Savanna. Advances in Meteorology،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1122796
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Quansah, Emmannuel…[et al.]. Numerical Simulation of Surface Energy and Water Balances over a Semiarid Grassland Ecosystem in the West African Savanna. Advances in Meteorology No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1122796
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Quansah, Emmannuel& Katata, Genki& Mauder, Matthias& Annor, Thompson& Amekudzi, Leonard K.& Bliefernicht, Jan…[et al.]. Numerical Simulation of Surface Energy and Water Balances over a Semiarid Grassland Ecosystem in the West African Savanna. Advances in Meteorology. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1122796
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1122796
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
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