海洋通报
海洋通報
해양통보
Marine Science Bulletin
2015年
5期
560-567
,共8页
湾流锋%季节变化%WOA13%BELLHOP模型
灣流鋒%季節變化%WOA13%BELLHOP模型
만류봉%계절변화%WOA13%BELLHOP모형
gulf stream front%seasonal variation%WOA13 database%BELLHOP model
基于WOA13数据可以较好的表现海洋锋强度的变化特征这一特点,选用分辨率为1/4°的1955-2012年58年季节平均数据分析了湾流锋轴线上温度、盐度绝对梯度的空间分布特征、季节的变化的强弱规律、温、盐关系,并运用BELLHOP模型对锋区声场特点进行了分析.分析表明湾流锋轴线水平位置及其强度随着深度变化比较明显,在锋轴线上温、盐强度的正相关性显著,锋区内声道的形成与季节以及声源深度关系密切.
基于WOA13數據可以較好的錶現海洋鋒彊度的變化特徵這一特點,選用分辨率為1/4°的1955-2012年58年季節平均數據分析瞭灣流鋒軸線上溫度、鹽度絕對梯度的空間分佈特徵、季節的變化的彊弱規律、溫、鹽關繫,併運用BELLHOP模型對鋒區聲場特點進行瞭分析.分析錶明灣流鋒軸線水平位置及其彊度隨著深度變化比較明顯,在鋒軸線上溫、鹽彊度的正相關性顯著,鋒區內聲道的形成與季節以及聲源深度關繫密切.
기우WOA13수거가이교호적표현해양봉강도적변화특정저일특점,선용분변솔위1/4°적1955-2012년58년계절평균수거분석료만류봉축선상온도、염도절대제도적공간분포특정、계절적변화적강약규률、온、염관계,병운용BELLHOP모형대봉구성장특점진행료분석.분석표명만류봉축선수평위치급기강도수착심도변화비교명현,재봉축선상온、염강도적정상관성현저,봉구내성도적형성여계절이급성원심도관계밀절.
Based on the characteristics of better describing the changing features of ocean front strength, the seasonal mean WOA13 data whose resolution is 1/4 degree is chosen to analyze the space distribution, seasonal changes of Gulf Stream front, temperature and salinity`s absolute gradient, relationship of temperature and salinity, and BELLHOP model is used to analyze the acoustic characteristics of the frontal zone. The axis horizontal position and intensity of Gulf Stream front vary quite obviously with the depth. In the axis, the thermohaline strength has significantly positive correlation, and the front zone channel is influenced by seasonal change and source depth.
