Mesoscale SST perturbation-induced impacts on climatological precipitation in the Kuroshio-Oyashio extension region, as revealed by the WRF simulations
文献类型：期刊论文
| 作者 | Gao Jiaxiang1,2; Zhang Rong-Hua1,2,3 ; Wang Hongna1,3
|
| 刊名 | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 37期号:2页码:385-397 |
| ISSN号 | 2096-5508 |
| 关键词 | mesoscale SST perturbations and effects WRF model Kuroshio-Oyashio Extension climatological precipitation |
| DOI | 10.1007/s00343-019-8065-5 |
| 通讯作者 | Zhang Rong-Hua(rzhang@qdio.ac.cn) |
| 英文摘要 | Mesoscale coupling between perturbations of mesoscale sea surface temperature (SST) and lowlevel winds has been extensively studied using available high-resolution satellite observations. However, the climatological impacts of mesoscale SST perturbations (SSTmeso ) on the free atmosphere have not been fully understood. In this study, the rectified effect of SSTmeso on local climatological precipitation in the Kuroshio-Oyashio Extension (KOE) region is investigated using the Weather Research and Forecasting (WRF) Model; two runs are performed, one forced by low-resolution SST fields (almost no mesoscale signals) and another by additional high-resolution SSTmeso fields extracted from satellite observations. Climatological precipitation response to SSTmeso is characterized mainly by enhanced precipitation on the warmer flank of three oceanic SST fronts in this region. The results show that the positive correlation between the 10-m wind speed perturbations and SSTmeso is well captured by the WRF model with a reasonable spatial pattern but relatively weak strength. The addition of SSTmeso improves the climatological precipitation simulated by WRF with a better representation of fine-scale structures compared with satellite observations. A closer examination on the underlying mechanism suggests that while the pressure adjustment mechanism can explain the climatological precipitation enhancement along the fronts and the relatively high contribution of the convective precipitation, other factors such as synoptic events should also be taken into consideration to account for the seasonality of the precipitation response. |
| 资助项目 | National Key Research and Development Program of China[2017YFC1404102] ; National Key Research and Development Program of China[2017YFC1404100] ; National Natural Science Foundation of China[41490644] ; National Natural Science Foundation of China[41490640] ; Chinese Academy of Sciences Strategic Priority Project ; Western Pacific Ocean System[XDA11010105] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406402] ; Taishan Scholarship ; Recruitment Program of Global Experts |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000464895600002 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/161158]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Zhang Rong-Hua |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean Dynam & Climate, Qingdao 266237, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao Jiaxiang,Zhang Rong-Hua,Wang Hongna. Mesoscale SST perturbation-induced impacts on climatological precipitation in the Kuroshio-Oyashio extension region, as revealed by the WRF simulations[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2019,37(2):385-397. |
| APA | Gao Jiaxiang,Zhang Rong-Hua,&Wang Hongna.(2019).Mesoscale SST perturbation-induced impacts on climatological precipitation in the Kuroshio-Oyashio extension region, as revealed by the WRF simulations.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,37(2),385-397. |
| MLA | Gao Jiaxiang,et al."Mesoscale SST perturbation-induced impacts on climatological precipitation in the Kuroshio-Oyashio extension region, as revealed by the WRF simulations".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 37.2(2019):385-397. |
入库方式： OAI收割
来源：海洋研究所
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