本文關(guān)鍵詞： 島嶼環(huán)流理論 南海 域際環(huán)流　出處：《海洋科學(xué)進(jìn)展》2017年01期 　論文類型：期刊論文

【摘要】：在Wajsowicz(1993)多島環(huán)流理論的基礎(chǔ)上,給出了一種摩擦-地形阻力作用的參數(shù)化方案,并應(yīng)用于南海域際環(huán)流動(dòng)力學(xué)的研究。結(jié)果表明,不考慮阻力時(shí)理論結(jié)果在海水輸運(yùn)方向上與實(shí)測(cè)一致,但在輸運(yùn)量的量值上與實(shí)測(cè)差別很大;考慮了摩擦-地形阻力作用后計(jì)算所得的各通道的流量與實(shí)測(cè)結(jié)果不但在方向上完全一致,在數(shù)值上也具有一定的一致性。因而在考慮了摩擦-地形阻力作用后,基于Sverdrup環(huán)流理論的多島環(huán)流理論能夠很好解釋南海域際環(huán)流形成的主要?jiǎng)恿C(jī)制。采用1948—2014年NCEP逐年風(fēng)應(yīng)力資料計(jì)算結(jié)果表明,各海峽流量均存在明顯的年際變化,其中呂宋海峽和民都洛海峽更為明顯。相關(guān)分析顯示,呂宋、民都洛和卡里馬塔海峽的流量相互之間存在較強(qiáng)的正相關(guān)性,而與望加錫海峽流量呈現(xiàn)顯著的負(fù)相關(guān)。El Ni錺o正位相期間太平洋-印度洋貫穿流南海分支加強(qiáng)而望加錫海峽流量減弱。計(jì)算結(jié)果還表明,呂宋海峽、民都洛海峽的西、南向流量在1948—2014年期間都存在明顯的增強(qiáng)趨勢(shì),而卡里馬塔海峽基本上未受影響。
[Abstract]:Based on the theory of multi-island circulation in Wajsowiczian 1993, a parameterized scheme of friction-terrain resistance is presented and applied to the study of the dynamics of circulation in the southern sea. When the resistance is not taken into account, the theoretical results are consistent with the measured results in the direction of sea water transport, but there is a great difference between the measured value and the measured value of the transport quantity. After considering the friction-terrain resistance, the calculated flow rate of each channel is completely consistent with the measured results not only in the direction, but also in the numerical value, so the friction-terrain resistance is taken into account. The multi-island circulation theory based on Sverdrup's circulation theory can well explain the main dynamic mechanism of the formation of the inter-sea circulation in the South China Sea. The calculated results of the annual wind stress data of NCEP from 1948-2014 show that there is obvious interannual variation in the flow rate of each strait. Among them, the Luzon Strait and the Mindulo Strait are more obvious. The correlation analysis shows that there is a strong positive correlation between the flow of the Luzon, Mindulo and Karimata Straits. However, there is a significant negative correlation with the flow in the Wangkassi Strait. During the positive phase of El Ni 帽 o, the branches of the Pacific and Indian Ocean running through the South China Sea are strengthened, while the discharge of the Wanggiasi Strait is weakened. The calculation results also show that the western side of the Luzon Strait and the Mindulo Strait, The southward flow showed a marked upward trend during 1948-2014, while the Karimata Strait was largely unaffected.
【作者單位】： 中國(guó)科學(xué)院南海海洋研究所;中國(guó)科學(xué)院大學(xué);國(guó)家海洋局第一海洋研究所;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目——南海北部溫躍層季節(jié)內(nèi)變化特征及其成因研究(41506037) 國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃項(xiàng)目——南海環(huán)流和海峽水交換對(duì)海氣相互作用的影響(2011CB403502) 國(guó)家自然科學(xué)基金委員會(huì)-山東省人民政府聯(lián)合資助海洋科學(xué)研究中心項(xiàng)目——海洋環(huán)境動(dòng)力學(xué)和數(shù)值模擬(U1406404)
【分類號(hào)】：P731.2

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