Improving the regional model forecasting of persistent severe rainfall over the Yangtze River Valley using the spectral nudging and update cycle methods: a case study

被引：5
作者：
Zhao, Yanfeng [1 ,2 ,3 ]
Wang, Donghai [1 ,4 ]
Xu, Jianjun [5 ]
机构：
[1] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China
[2] Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing, Jiangsu, Peoples R China
[3] George Mason Univ, Global Environm & Nat Resources Inst GENRI, Coll Sci, Fairfax, VA USA
[4] Sun Yat Sen Univ, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China
[5] Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang, Peoples R China
来源：
ATMOSPHERIC SCIENCE LETTERS | 2017年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
persistent severe rainfall; precipitation forecasting; spectral nudging; update cycle; EXTREME PRECIPITATION; CHINA; WEATHER; PARAMETERIZATION; PREDICTABILITY; SIMULATION; RESOLUTION; EVENTS; SYSTEM; SCHEME;
D O I：
10.1002/asl.731
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
China's worst flooding since 1998 occurred over the Yangtze River Valley from 30 June to 6 July 2016. This study investigated the event using a new method-the spectral nudging and update cycle (SN+UIC)-in the regional Weather Research and Forecasting model, fuller use of small-scale features by using multi-scale blending. The SN+UIC was found to be successful in improving the prediction of this persistent severe rainfall event; and the larger the magnitude and longer the lead time, the more obvious the improvement. It was also found that the use of this new method decreased the root-mean-square error for related meteorological variables.
引用
收藏
页码：96 / 102
页数：7
相关论文
共 42 条
  • [1] BELJAARS ACM, 1995, Q J ROY METEOR SOC, V121, P255, DOI 10.1002/qj.49712152203
  • [2] [陈官军 Chen Guanjun], 2010, [应用气象学报, Journal of Applied Meteorolgical Science], V21, P659
  • [3] Mechanisms for concurrent low-latitude circulation anomalies responsible for persistent extreme precipitation in the Yangtze River Valley
    Chen, Yang
    Zhai, Panmao
    [J]. CLIMATE DYNAMICS, 2016, 47 (3-4) : 989 - 1006
  • [4] Persistent extreme precipitation events in China during 1951-2010
    Chen, Yang
    Zhai, Panmao
    [J]. CLIMATE RESEARCH, 2013, 57 (02) : 143 - 155
  • [5] Denis B, 2002, MON WEATHER REV, V130, P1812, DOI 10.1175/1520-0493(2002)130<1812:SDOTDA>2.0.CO
  • [6] 2
  • [7] DUDHIA J, 1989, J ATMOS SCI, V46, P3077, DOI 10.1175/1520-0469(1989)046<3077:NSOCOD>2.0.CO
  • [8] 2
  • [9] Using the WRF Model in an Operational Streamflow Forecast System for the Jordan River
    Givati, Amir
    Lynn, Barry
    Liu, Yubao
    Rimmer, Alon
    [J]. JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, 2012, 51 (02) : 285 - 299
  • [10] Atmospheric predictability and Rossby wave packets
    Grazzini, Federico
    Vitart, Frederic
    [J]. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 2015, 141 (692) : 2793 - 2802
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