Sensitivity Evaluation of Spectral Nudging Schemes in Historical Dynamical Downscaling for South Asia
Joint Authors
Ham, Suryun
Ramzan, Mehwish
Amjad, Muhammad
Chang, Eun-Chul
Yoshimura, Kei
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-27
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
Sensitivity experiments testing two scale-selective bias correction (SSBC) methods have been carried out to identify an optimal spectral nudging scheme for historical dynamically downscaled simulations of South Asia, using the coordinated regional climate downscaling experiment (CORDEX) protocol and the regional spectral model (RSM).
Two time periods were selected under the category of short-term extreme summer and long-term decadal analysis.
The new SSBC version applied nudging to full wind components, with an increased relaxation time in the lower model layers, incorporating a vertical weighted damping coefficient.
An evaluation of the extraordinary weather conditions experienced in South Asia in the summer of 2005 confirmed the advantages of the new SSBC when modeling monsoon precipitation.
Furthermore, the new SSBC scheme was found to predict precipitation and wind patterns more accurately than the older version in decadal analysis, which applies nudging only to the rotational wind field, with a constant strength at all heights.
American Psychological Association (APA)
Ramzan, Mehwish& Ham, Suryun& Amjad, Muhammad& Chang, Eun-Chul& Yoshimura, Kei. 2017. Sensitivity Evaluation of Spectral Nudging Schemes in Historical Dynamical Downscaling for South Asia. Advances in Meteorology،Vol. 2017, no. 2017, pp.1-20.
https://search.emarefa.net/detail/BIM-1122901
Modern Language Association (MLA)
Ramzan, Mehwish…[et al.]. Sensitivity Evaluation of Spectral Nudging Schemes in Historical Dynamical Downscaling for South Asia. Advances in Meteorology No. 2017 (2017), pp.1-20.
https://search.emarefa.net/detail/BIM-1122901
American Medical Association (AMA)
Ramzan, Mehwish& Ham, Suryun& Amjad, Muhammad& Chang, Eun-Chul& Yoshimura, Kei. Sensitivity Evaluation of Spectral Nudging Schemes in Historical Dynamical Downscaling for South Asia. Advances in Meteorology. 2017. Vol. 2017, no. 2017, pp.1-20.
https://search.emarefa.net/detail/BIM-1122901
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122901