Remote effects of tropical cyclone wind forcing over the western Pacific on the eastern equatorial ocean
文献类型：期刊论文
| 作者 | Zhang Ronghua
|
| 刊名 | ADVANCES IN ATMOSPHERIC SCIENCES
 |
| 出版日期 | 2013-11 |
| 卷号 | 30期号:6页码:1507-1525 |
| 关键词 | tropical cyclone wind forcing ocean modeling remote effects ocean pathway satellite data NINO-SOUTHERN OSCILLATION MIXED-LAYER MODEL FRESH-WATER FLUX EL-NINO NORTH PACIFIC HURRICANE ENSO VARIABILITY SIMULATION INTENSITY |
| 中文摘要 | An ocean general circulation model (OGCM) is used to demonstrate remote effects of tropical cyclone wind (TCW) forcing in the tropical Pacific. The signature of TCW forcing is explicitly extracted using a locally weighted quadratic least-squares regression (called as LOESS) method from six-hour satellite surface wind data; the extracted TCW component can then be additionally taken into account or not in ocean modeling, allowing isolation of its effects on the ocean in a clean and clear way. In this paper, seasonally varying TCW fields in year 2008 are extracted from satellite data which are prescribed as a repeated annual cycle over the western Pacific regions off the equator (poleward of 10A degrees N/S); two long-term OGCM experiments are performed and compared, one with the TCW forcing part included additionally and the other not. Large, persistent thermal perturbations (cooling in the mixed layer (ML) and warming in the thermocline) are induced locally in the western tropical Pacific, which are seen to spread with the mean ocean circulation pathways around the tropical basin. In particular, a remote ocean response emerges in the eastern equatorial Pacific to the prescribed off-equatorial TCW forcing, characterized by a cooling in the mixed layer and a warming in the thermocline. Heat budget analyses indicate that the vertical mixing is a dominant process responsible for the SST cooling in the eastern equatorial Pacific. Further studies are clearly needed to demonstrate the significance of these results in a coupled ocean-atmosphere modeling context. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-08-28 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/18188]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang Ronghua. Remote effects of tropical cyclone wind forcing over the western Pacific on the eastern equatorial ocean[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2013,30(6):1507-1525. |
| APA | Zhang Ronghua.(2013).Remote effects of tropical cyclone wind forcing over the western Pacific on the eastern equatorial ocean.ADVANCES IN ATMOSPHERIC SCIENCES,30(6),1507-1525. |
| MLA | Zhang Ronghua."Remote effects of tropical cyclone wind forcing over the western Pacific on the eastern equatorial ocean".ADVANCES IN ATMOSPHERIC SCIENCES 30.6(2013):1507-1525. |
入库方式： OAI收割
来源：海洋研究所
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