MSGID: 1:317/3 62bde4db   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    EPOD - a service of USRA   
      
   The Earth Science Picture of the Day (EPOD) highlights the diverse processes   
   and phenomena which shape our planet and our lives. EPOD will collect and   
   archive photos, imagery, graphics, and artwork with short explanatory   
   captions and links exemplifying features within the Earth system. The   
   community is invited to contribute digital imagery, short captions and   
   relevant links.   
      
      
    Roll and Lenticular Clouds Above Taiwan   
      
      June 30, 2022   
      
       DSC_7148(1)   
      
      Photographer:  Wei-Chun Lin   
      
      Summary Authors:  Wei-Chun Lin;  Cadan Cummings   
      
      The photo above shows both a roll cloud (at far left) and lenticular   
      cloud (center of photo) as seen from a hilltop near Taipei, Taiwan. As   
      soon as I spotted satellite images showing the possibility of these   
      cloud structures, I rode my motorcycle to  Yangmingshan National   
      Park near Taipei.   
      
       Roll clouds are a type of  arcus cloud that form on the leading   
      edge of a storm. Unlike other shelf clouds, roll clouds are   
       separate from the thunderstorm base. This specific roll cloud was   
      still far away from the coast at the time of the photo. Their name   
      comes from their horizontal “rolling” motion.   
      
      Conversely,  lenticular clouds are not related with storms. Instead,   
      these uniquely shaped clouds form when moist air cools and then   
       condensates as it passes over mountains. When the stable is forced   
      over the ridge,  atmospheric waves are created that produce the   
      cloud’s characteristic lens-shape appearance.  Click here for a   
      time-lapse video of the clouds.   
      
      Photo details: Nikon D850, f/11, 1/500 second exposure, 24mm   
        * Taipei, Taiwan Coordinates: 25.033, 121.565   
      
   Related EPODs   
      
       Roll and Lenticular Clouds Above Taiwan  Moonlit Monte Viso   
       Cumulonimbus Montage Above Taipei, Taiwan  Asperitas Clouds   
      Observed Above Hong Kong  Anticrepuscular Rays at the Winter Sunset   
       Kelvin-Helmholtz Wave Clouds Over Taipei   
       More...   
      
   Cloud Links   
      
        *  Atmospheric Optics   
        *  The Cloud Appreciation Society   
        *  Cloud Atlas   
        *  Color and Light in Nature   
      
   -   
      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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