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Comparison of Analysis and Spectral Nudging Techniques for Dynamical Downscaling with the WRF Model over China
المؤلفون المشاركون
Qiu, Chongjian
Yang, Yi
Ma, Yuanyuan
Mai, Xiaoping
Long, Xiao
Wang, Chenghai
المصدر
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-12-29
دولة النشر
مصر
عدد الصفحات
16
التخصصات الرئيسية
الملخص EN
To overcome the problem that the horizontal resolution of global climate models may be too low to resolve features which are important at the regional or local scales, dynamical downscaling has been extensively used.
However, dynamical downscaling results generally drift away from large-scale driving fields.
The nudging technique can be used to balance the performance of dynamical downscaling at large and small scales, but the performances of the two nudging techniques (analysis nudging and spectral nudging) are debated.
Moreover, dynamical downscaling is now performed at the convection-permitting scale to reduce the parameterization uncertainty and obtain the finer resolution.
To compare the performances of the two nudging techniques in this study, three sensitivity experiments (with no nudging, analysis nudging, and spectral nudging) covering a period of two months with a grid spacing of 6 km over continental China are conducted to downscale the 1-degree National Centers for Environmental Prediction (NCEP) dataset with the Weather Research and Forecasting (WRF) model.
Compared with observations, the results show that both of the nudging experiments decrease the bias of conventional meteorological elements near the surface and at different heights during the process of dynamical downscaling.
However, spectral nudging outperforms analysis nudging for predicting precipitation, and analysis nudging outperforms spectral nudging for the simulation of air humidity and wind speed.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ma, Yuanyuan& Yang, Yi& Mai, Xiaoping& Qiu, Chongjian& Long, Xiao& Wang, Chenghai. 2016. Comparison of Analysis and Spectral Nudging Techniques for Dynamical Downscaling with the WRF Model over China. Advances in Meteorology،Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1095499
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ma, Yuanyuan…[et al.]. Comparison of Analysis and Spectral Nudging Techniques for Dynamical Downscaling with the WRF Model over China. Advances in Meteorology No. 2016 (2016), pp.1-16.
https://search.emarefa.net/detail/BIM-1095499
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ma, Yuanyuan& Yang, Yi& Mai, Xiaoping& Qiu, Chongjian& Long, Xiao& Wang, Chenghai. Comparison of Analysis and Spectral Nudging Techniques for Dynamical Downscaling with the WRF Model over China. Advances in Meteorology. 2016. Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1095499
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1095499
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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