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DOI | 10.1175/JCLI-D-18-0660.1 |
Evaluating the Bias of South China Sea Summer Monsoon Precipitation Associated with Fast Physical Processes Using a Climate Model Hindcast Approach | |
Chen, Wei-Ting1; Wu, Chien-Ming1; Ma, Hsi-Yen2 | |
2019-07-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:14页码:4491-4507 |
文章类型 | Article |
语种 | 英语 |
国家 | Taiwan; USA |
英文摘要 | The present study aims to identify the precipitation bias associated with the interactions among fast physical processes in the Community Atmospheric Model, version 5 (CAM5), during the abrupt onset of the South China Sea (SCS) summer monsoon, a key precursor of the overall East Asia summer monsoon (EASM). The multiyear hindcast approach is utilized to obtain the well-constrained synoptic-scale horizontal circulation each year during the onset period from the years 1998 to 2012. In the pre-onset period, the ocean precipitation over the SCS is insufficiently suppressed in CAM5 hindcasts and thus weaker land-ocean precipitation contrasts. This is associated with the weaker and shallower convection simulated over the surrounding land, producing weaker local circulation within the SCS basin. In the post-onset period, rainfall of the organized convection over the Philippine coastal ocean is underestimated in the hindcasts, with overestimated upper-level heating. These biases are further elaborated as the underrepresentation of the convection diurnal cycle and coastal convection systems, as well as the issue of precipitation sensitivity to environmental moisture during the SCS onset period. The biases identified in hindcasts are consistent with the general bias of the EASM in the climate simulation of CAM5. The current results highlight that the appropriate representation of land-ocean-convection interactions over coastal areas can potentially improve the simulation of seasonal transition over the monsoon regions. |
英文关键词 | Monsoons Precipitation Climate models Convective parameterization Model evaluation performance |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000472758200001 |
WOS关键词 | LATENT HEATING PROFILES ; COMMUNITY ATMOSPHERE MODEL ; TRMM PR DATA ; GENERAL-CIRCULATION MODELS ; DIURNAL CYCLE ; SPECTRAL RETRIEVAL ; INTERANNUAL VARIABILITY ; PART I ; INTRASEASONAL OSCILLATION ; GLOBAL PRECIPITATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/184726 |
专题 | 气候变化 |
作者单位 | 1.Natl Taiwan Univ, Dept Atmospher Sci, Taipei, Taiwan; 2.Lawrence Livermore Natl Lab, Livermore, CA USA |
推荐引用方式 GB/T 7714 | Chen, Wei-Ting,Wu, Chien-Ming,Ma, Hsi-Yen. Evaluating the Bias of South China Sea Summer Monsoon Precipitation Associated with Fast Physical Processes Using a Climate Model Hindcast Approach[J]. JOURNAL OF CLIMATE,2019,32(14):4491-4507. |
APA | Chen, Wei-Ting,Wu, Chien-Ming,&Ma, Hsi-Yen.(2019).Evaluating the Bias of South China Sea Summer Monsoon Precipitation Associated with Fast Physical Processes Using a Climate Model Hindcast Approach.JOURNAL OF CLIMATE,32(14),4491-4507. |
MLA | Chen, Wei-Ting,et al."Evaluating the Bias of South China Sea Summer Monsoon Precipitation Associated with Fast Physical Processes Using a Climate Model Hindcast Approach".JOURNAL OF CLIMATE 32.14(2019):4491-4507. |
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