青藏高原不同分型极端降水发生期间大气环流与前兆信号特征示意图 (IMAGE) Science China Press Caption (a)高原西北型极端降水,(b)高原东南型极端降水,以及(c)喜马拉雅山脉南麓型极端降水。图中“C”代表气旋性环流异常, “A”代表反气旋性环流异常, 绿色箭头表示水汽输送及其方向, 黄色箭头表示上升运动增强, 紫色曲线代表Rossby波列。 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.