中文摘要：

地区性的分析 productChina 海洋分析(CORA ) 为瓷器海和邻近的区域被开发了。在这研究，在 CORA 的 intraseasonal 可变性(ISV ) 被与观察和二个另外的分析产品(ECCO2 和苏打) 作比较估计。 CORA 比 ECCO2 和苏打做的在捕获 intraseasonal 海表面温度( SST )和 intraseasonal 海表面高度( SSH )显示出更好的表演，可能由于它的高分辨率，对在空气(特别 Madden-Julian 摆动)强迫的 intraseasonal 的更强壮的反应，并且为吸收的更可得到的地区性的数据。但是在表面下，在 CORA 的 ISV 是可能的比现实弱，它可能在 CORA 模型为吸收和弱 diapycnal 旋涡扩散性被归因于稀罕观察数据。根据比较结果， CORA 是为与在表面的可变性有关的学习的一种好选择，但是忧虑不得不为集中于表面下的过程的学习被小心。

英文摘要：

A regional reanalysis product-China Ocean Reanalysis（CORA）-has been developed for the China＇s seas and the adjacent areas. In this study, the intraseasonal variabilities（ISVs） in CORA are assessed by comparing with observations and two other reanalysis products（ECCO2 and SODA）. CORA shows a better performance in capturing the intraseasonal sea surface temperatures（SSTs） and the intraseasonal sea surface heights（SSHs） than ECCO2 and SODA do, probably due to its high resolution, stronger response to the intraseasonal forcing in the atmosphere（especially the Madden-Julian Oscillation）, and more available regional data for assimilation. But at the subsurface, the ISVs in CORA are likely to be weaker than reality, which is probably attributed to rare observational data for assimilation and weak diapycnal eddy diffusivity in the CORA model. According to the comparison results, CORA is a good choice for the study related to variabilities at the surface, but cares have to be taken for the study focusing on the subsurface processes.