baroclinicity

It is shown that mean baroclinicity shows a great increase (decrease) over the Pacific storm track area during El Nino (La Nina) year, which makes the track strengthen (weaken) along with stretching eastwards (withdrawing westwards) and vigor (faint) low level up and pole ward transpo.

利用欧洲中期天气预报中心（ＥＣＭＷＦ）每日客观分析资料及美国大气研究中心（ＮＣＡＲ）再分析资料研究了ＥＮＳＯ事件对冬季北半球太平洋风暴轴维持的影响，结果表明，ＥｌＮｉｎｏ（ＬａＮｉｎａ）年，风暴轴区域斜压性强（弱），风暴轴位置向东（西）扩展（收缩）且强度强（弱），与风暴轴发展有关的涡动热量通量和动量通量也同时增强（减弱），由此揭示出ＥＮＳＯ事件对太平洋风暴轴的维持和发展有重要影响。

Results show that warm SSTA can give rise to dramatically in-creased baroclinicity on the north side of the anomaly area and downstream of it and to cause syn-optic scale perturbation variance,disturbance kinetic energy and eddy heat flux to be intensifiedat the entrance of the storm track,thereby revealing the important role of thermal forcing in themaintenance and development of the tra.

结果表明：冬季西北太平洋暖海表温度异常能显著增强异常区北侧及下游地区的斜压性，天气尺度扰动方差、扰动动能以及涡动热量通量等也在此风暴轴的入口区得到增强，由此揭示出外热源强迫对太平洋风暴轴的维持和发展起重要作用。

The low frequency features of the atmospheric baroclinity in the northern hemisphere winter are analyzed numerically by using the ECMWF day—to—day grid point data for the years of 1981—1982.

利用1981—1982年ECMWF逐日格点资料对冬季大气斜压性的低频特征进行了计算和分析,给出了斜压性变化方程,讨论了斜压性变化的物理原因。

Case study on the impact of atmospheric baroclinicity to the initial development of Jianghuai cyclones;

大气斜压性与入海江淮气旋发展的个例研究

Baroclinic stability of oceanic long Rossby wave in the North Pacific Subtropical Countercurrent;

北太平洋副热带向东逆流区Rossby波斜压稳定性