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DOI | 10.1007/s00382-018-4137-z |
Spectral cumulus parameterization based on cloud-resolving model | |
Baba, Yuya | |
2019 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:309-334 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | We have developed a spectral cumulus parameterization using a cloud-resolving model. This includes a new parameterization of the entrainment rate which was derived from analysis of the cloud properties obtained from the cloud-resolving model simulation and was valid for both shallow and deep convection. The new scheme was examined in a single-column model experiment and compared with the existing parameterization of Gregory (2001, Q J R Meteorol Soc 127:53-72) (GR scheme). The results showed that the GR scheme simulated more shallow and diluted convection than the new scheme. To further validate the physical performance of the parameterizations, Atmospheric Model Intercomparison Project (AMIP)experiments were performed, and the results were compared with reanalysis data. The new scheme performed better than the GR scheme in terms of mean state and variability of atmospheric circulation, i.e., the new scheme improved positive bias of precipitation in western Pacific region, and improved positive bias of outgoing shortwave radiation over the ocean. The new scheme also simulated better features of convectively coupled equatorial waves and Madden-Julian oscillation. These improvements were found to be derived from the modification of parameterization for the entrainment rate, i.e., the proposed parameterization suppressed excessive increase of entrainment, thus suppressing excessive increase of low-level clouds. |
英文关键词 | Cumulus parameterization Cloud-resolving model Entrainment rate |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460619200019 |
WOS关键词 | CONVECTIVE MOMENTUM TRANSPORT ; GRAVITY-WAVE DRAG ; MASS-FLUX SCHEME ; GENERAL-CIRCULATION ; PART I ; IDEALIZED SIMULATIONS ; CLIMATE SIMULATIONS ; VERTICAL TRANSPORT ; ECMWF MODEL ; TOGA COARE |
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/35998 |
专题 | 气候变化 |
作者单位 | Japan Agcy Marine Earth Sci & Technol, Applicat Lab, Kanazawa Ku, 3173-25 Showa Machi, Yokohama, Kanagawa 2360001, Japan |
推荐引用方式 GB/T 7714 | Baba, Yuya. Spectral cumulus parameterization based on cloud-resolving model[J]. CLIMATE DYNAMICS,2019,52:309-334. |
APA | Baba, Yuya.(2019).Spectral cumulus parameterization based on cloud-resolving model.CLIMATE DYNAMICS,52,309-334. |
MLA | Baba, Yuya."Spectral cumulus parameterization based on cloud-resolving model".CLIMATE DYNAMICS 52(2019):309-334. |
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