BROWSE

Related Researcher

Author's Photo

Cha, Dong-Hyun
High-impact Weather Prediction Lab (HWPL)
Research Interests
  • Typhoon Modeling, Regional Climate Modeling, High-impact Weather

ITEM VIEW & DOWNLOAD

Impact of intermittent spectral nudging on regional climate simulation using Weather Research and Forecasting model

Cited 15 times inthomson ciCited 0 times inthomson ci
Title
Impact of intermittent spectral nudging on regional climate simulation using Weather Research and Forecasting model
Author
Cha, Dong-HyunJin, Chun-SilLee, Dong-KyouKuo, Ying-Hwa
Keywords
ASIAN SUMMER MONSOON;  LIMITED-AREA MODEL;  LATERAL BOUNDARY;  PART I;  EAST-ASIA;  PRECIPITATION;  SENSITIVITY;  PARAMETERIZATION;  SYSTEM;  REGCM2
Issue Date
2011-05
Publisher
AMER GEOPHYSICAL UNION
Citation
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v.116, no., pp. -
Abstract
This study examines simulated typhoon sensitivities to spectral nudging (SN) to investigate the effects on values added by regional climate models, which are not properly resolved by low-resolution global models. SN is suitably modified to mitigate its negative effects while maintaining the positive effects, and the effects of the modified SN are investigated through seasonal simulations. In the sensitivity experiments to nudging intervals of SN, the tracks of simulated typhoons are improved as the SN effect increases; however, the intensities of the simulated typhoons decrease due to the suppression of the typhoon developing process by SN. To avoid such suppression, SN is applied at intermittent intervals only when the deviation between the large-scale driving forcing and the model solution is large. In seasonal simulations, intermittent SN is applied for only 7% of the total time steps; however, this results in not only maintaining the large-scale features of monsoon circulation and precipitation corresponding to observations but also improving the intensification of mesoscale features by reducing the suppression.
URI
https://scholarworks.unist.ac.kr/handle/201301/8341
DOI
10.1029/2010JD015069
ISSN
2169-897X
Appears in Collections:
UEE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU