图2 (IMAGE) Moscow Institute of Physics and Technology Caption 大气层中水蒸气的浓度与太阳经度、距地面高度和地理纬度的依赖性。 Credit 向下流动是以蓝色显示的,向上流动是以红色显示的。 Usage Restrictions None License Licensed 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.