由SAM II卫星系统在1978年和1979年测量的高度平流层气溶
Science (New York, N.Y.)
|October 16, 1981
概括
石流层气溶测量 (SAM) II卫星系统揭示了极地石流层气溶行为的季节性相似性. 冬季的极地平流层云显著影响南极光学深度,并可能影响水蒸气.
科学领域:
- 大气科学 大气科学
- 层气溶研究研究
- 遥感 遥感 遥感 遥感
背景情况:
- 高层层气溶在地球的辐射平衡和大气化学中起着至关重要的作用.
- 了解气溶分布的季节性变化是建模气候影响的关键.
- 平流层气溶测量 (SAM) II卫星提供了关于平流层组成的宝贵数据.
研究的目的:
- 介绍SAM II卫星系统第一年数据.
- 在北极和南极地区分析平流层气溶灭绝和光学深度.
- 研究平流层气溶,温度和极地平流层云之间的相关性.
主要方法:
- 利用了来自SAM II卫星的近10,000个平流层气溶灭绝概况.
- 构建每周平均气溶灭绝与高度和时间图.
- 生成的平流层光学深度与时间图,以及相应的温度场.
主要成果:
- 在北极和南极地区之间的平流层气溶行为中观察到惊人的季节性相似性.
- 记录的冬季极地平流层云与温度有很强的相关性.
- 发现极地平流层云在南极洲更为普遍,在南极冬季显著增加光学深度.
结论:
- 极地平流层云是南极平流层的一个重要的季节性现象.
- 这些云可能会充当平流层水蒸气的沉水池.
- 极地平流层云的辐射影响必须在极地地区的气候模型中考虑.
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