本文選題：海洋層結(jié)譜表達(dá)法及自適應(yīng)識別 + 溫躍層　； 參考：《國家海洋局第一海洋研究所》2017年碩士論文

【摘要】：本文利用2006-07的溫鹽實(shí)測資料,分別采用海洋層結(jié)譜表達(dá)法及自適應(yīng)識別,和傳統(tǒng)躍層確定方法對資料進(jìn)行處理分析。對兩種方法在識別躍層時(shí),對各種不同類型躍層的確定結(jié)果進(jìn)行比較。形成海洋層結(jié)譜表達(dá)法及自適應(yīng)識別下的“五點(diǎn)三要素圖”,傳統(tǒng)躍層確定方法下的躍層深度、及強(qiáng)度要素平面分布圖,分析夏季躍層的分布特點(diǎn),分析表明:1)夏季溫躍層產(chǎn)生的普遍原因是海表由于太陽輻射溫度升高,與下層水間的溫差導(dǎo)致溫躍層產(chǎn)生,溫躍層深度自西向東,隨水深增大而增大,強(qiáng)度強(qiáng)的溫躍層深度較淺厚度較薄,強(qiáng)度弱的溫躍層深度較深厚度較大。2)夏季逆溫躍層是由于黃海暖流殘余水與黃海冷水團(tuán)的共同作用產(chǎn)生的。3)躍層譜表達(dá)法及自適應(yīng)識別法更加完整地確定、表達(dá)了躍層。沒有人為規(guī)定最低標(biāo)準(zhǔn),檢測結(jié)果更加客觀。在多躍層的確定中沒有忽略溫度垂向梯度中客觀存在的變化,更加細(xì)致地體現(xiàn)出了其實(shí)際情況。此外,本文利用南黃海西部2007-04的溫鹽實(shí)測資料,細(xì)致的分析了該海區(qū)的逆溫躍層特征。采用海洋層結(jié)譜表達(dá)法及自適應(yīng)識別,得到逆溫躍層的“五點(diǎn)三要素”,形成強(qiáng)度要素平面分布圖。分析表明,逆溫躍層的存在與黃海暖流水有直接的關(guān)系:1)4月份,黃海暖流水受到的海面冷卻仍是產(chǎn)生逆溫躍層的普遍原因,在該海區(qū)黃海暖流向北延伸和向兩側(cè)拓展的區(qū)域都有該種類型的逆溫躍層存在,位置相對較淺;2)但在偏南的黃海暖流主干區(qū),海面冷卻產(chǎn)生的效應(yīng)被主流區(qū)的熱量補(bǔ)充所抵消,逆溫躍層很弱甚至消失,這是該月份逆溫躍層分布區(qū)向北退縮并在南部中心附近呈現(xiàn)缺失區(qū)的主要原因;3)南下的魯北沿岸流水的冷水疊加在黃海暖流水的暖水上方,使逆溫躍層加強(qiáng),使得冷暖水的作用區(qū)成為強(qiáng)逆溫躍層區(qū);4)黃海暖流左側(cè)冷沿岸流水及右側(cè)冷水的前端向黃海暖流楔入,其前端往往覆蓋在底層高溫高鹽的黃海暖流水上方形成下逆溫躍層,從而形成雙逆溫躍層。這些特點(diǎn),較以前認(rèn)知更加客觀、全面、細(xì)致和準(zhǔn)確。
[Abstract]:In this paper, the temperature and salt data of 2006-07 are used to process and analyze the data, respectively, by using marine stratification spectrum expression and adaptive recognition, and the traditional cline determination method. The determination results of different types of clines are compared when the two methods are used to identify the clines. The "5.3 element map" of marine stratification spectrum expression and adaptive recognition is formed, and the depth of cline and the plane distribution map of intensity elements under the traditional method of determining the cline are formed, and the distribution characteristics of the thermocline in summer are analyzed. The analysis shows that the common cause of the thermocline in summer is that the thermocline is produced by the temperature difference between the sea surface and the lower water, and the depth of the thermocline increases from west to east, and increases with the increase of water depth. The depth of the thermocline with strong strength is thinner than that of the shallow cline. The depth of the thermocline with weak strength is deeper than that of the thermocline. 2) the thermocline layer in summer is determined by the interaction of Huang Hai warm current residual water and Huang Hai cold water mass. 3) the thermocline spectrum expression method and adaptive identification method are more complete and express the thermocline layer. There is no artificial minimum standard, and the test results are more objective. The objective changes in the vertical gradient of temperature are not ignored in the determination of the multicline, and the actual situation is reflected in more detail. In addition, the characteristics of the inversion thermocline in the sea area are analyzed in detail by using the measured data of temperature and salt in the west of South Huang Hai in 2007-04. The "5.3 elements" of the inversion thermocline are obtained by using the expression of ocean stratification spectrum and adaptive recognition, and the plane distribution map of the intensity elements is formed. The analysis shows that the existence of inverse thermocline is directly related to Huang Hai warm current water. In April, the sea surface cooling of Huang Hai warm current water is still the common cause of the inversion thermocline. This type of inverse thermocline exists in the area where the Huang Hai warm current extends northward and extends to both sides, and the position is relatively shallow. However, in the southerly Huang Hai warm current trunk area, the effect of sea surface cooling is offset by the heat recharge in the mainstream area. The inversion thermocline is very weak or even disappeared, which is the main reason why the distribution area of the inversion thermocline retreats northward and presents a missing area near the center of the south.) the cold water of the flowing water along the north coast of Shandong Province is superimposed on the warm water of the Huang Hai warm current. Strengthen the thermocline and make the action zone of cold and warm water become the strong inversion thermocline area (4) Huang Hai warm current the cold coastal water on the left and the front end of the right cold water wedge into the Huang Hai warm current, Its front end often covers the bottom layer of high temperature and high salt in Huang Hai warm current water to form a lower inversion thermocline, thus forming a double inversion thermocline. These characteristics are more objective, comprehensive, meticulous and accurate than previous cognition.
【學(xué)位授予單位】：國家海洋局第一海洋研究所
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P714

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