Methods to detect eddies have been developed in the recent years, such as the method of satellite tracked surface drifting buoys but this method is expensive and can not cover large areas.

• 近年来出现许多漩涡提取的方法，例如，采用水文观测的方法（以设立各种浮标收集海洋资料的方法）不仅要耗费昂贵的人力物力且无法覆盖广大区域。