The interannual variability of the cross equatorial meridional overturning circulation in January (winter) and July (summer) for the Indian Ocean is studied based on the SODA data covering 50 years.

• 摘要利用50a的SODA资料对1月（冬季）和7月（夏季）印度洋越赤道经向翻转环流的年际变化进行研究。