首页> 外文期刊>The Astrophysical journal >SVBMILLIMETER WAVE ASTRONOMY SATELLITE OBSERVATIONS OF THE MARTIAN ATMOSPHERE: TEMPERATURE AND VERTICAL DISTRIBUTION OF WATER VAPOR
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SVBMILLIMETER WAVE ASTRONOMY SATELLITE OBSERVATIONS OF THE MARTIAN ATMOSPHERE: TEMPERATURE AND VERTICAL DISTRIBUTION OF WATER VAPOR

机译:马氏大气层的SVBM毫米波天文学卫星观测:水蒸气的温度和垂直分布

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摘要

We report the first detections of absorption features in the submillimeter spectrum of Mars that are due to the H_2O (1_(10)-1_(01)) and ~(13)CO (5-4) rotational transitions. Observations were obtained over several days near the planet's closest approach to Earth in 1999 April. These observations simultaneously provide us with an opportunity to derive the atmospheric temperature structure and to measure directly the distribution of water vapor with altitude. The Martian atmosphere is found to be relatively cool, consistent with results found from ground-based millimeter observations of CO. The distribution of water in the Martian atmosphere matches a profile of constant, 100% saturation from 10 to 45 km altitude.
机译:我们报告了由于H_2O(1_(10)-1_(01))和〜(13)CO(5-4)旋转转变而在火星的亚毫米波谱中首次发现吸收特征。在1999年4月该行星最接近地球的位置附近,经过几天的观测。这些观测结果同时为我们提供了推导大气温度结构并直接测量海拔高度水汽分布的机会。发现火星大气相对凉爽,这与从地面对一氧化碳的毫米波观测得出的结果一致。火星大气中的水分布与从10到45 km高度恒定的100%饱和度分布相吻合。

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