altocumulus cloud造句

• The images are probably examples of either Altocumulus clouds, Cirrocumulus clouds, or Stratocumulus clouds.
• Altocumulus clouds, then, are cumulus clouds riding higher in the air than typical cumulus clouds.
• I believe they are altocumulus clouds, and if anyone can confirm that, then that would be wonderful.
• I have added your image to : commons : Category : Altocumulus clouds and added a box with a link to the Commons category in Altocumulus mackerel sky.
• A "'mackerel sky "'is a common term for a sky with rows of cirrocumulus or altocumulus clouds displaying an undulating, rippling pattern similar in appearance to fish scales; this is caused by high altitude atmospheric waves.
• Depending on the temperature and humidity at the altitude the contrails form, they may be visible for only a few seconds or minutes, or may persist for hours and spread to be several miles wide, eventually resembling natural cirrus or altocumulus clouds.