Polar mesospheric clouds are extremely sensitive to changes in atmospheric water vapor and temperature.
云层亮度上升趋势提示大气环境的微妙变化,而这也许和温室气体的变化有关”迪兰如是说。极地中间层的云对大气中水汽和温度十分敏感。
Polar mesospheric clouds are also known as noctilucent or “night-shining” clouds—a property that is clearly visible in this astronaut photograph.
极地中层云也被称为夜光云层(noctilucent)(就是在夜晚还闪光的云)。这一特点在这张太空照片上显露无疑。
It is the season for viewing Polar Mesospheric Clouds, and with our high beta-angle we were able to capture this thin layer of noctilucent clouds at sunset (6-25-2010).
到了观看极地中气层云的时候,在太空中使用高β角度,我们能捕捉到日落时刻这层薄薄的夜光云。
Polar mesospheric, or noctilucent ("night shining"), clouds usually are seen at twilight, following the setting of the sun below the horizon and darkening of Earth's surface.
极地气层云,或者说晚霞,通常是那些在黎明前看到的云朵,伴随着地平线以下落幕的太阳和黑暗的地球表面。
Polar mesospheric or Notilucent clouds are made of crystals of water ice and are the highest clouds in the Earth's atmosphere, located in the mesosphere at altitudes of around 76 to 85 kilometres
极地平流层云或珠母云由冰晶形成,位于大气层的中间层,是地球大气中位置最高的云层,达到约76至85千米。
Polar mesospheric or Notilucent clouds are made of crystals of water ice and are the highest clouds in the Earth's atmosphere, located in the mesosphere at altitudes of around 76 to 85 kilometres
极地平流层云或珠母云由冰晶形成,位于大气层的中间层,是地球大气中位置最高的云层,达到约76至85千米。
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