ice supersaturation

  1. M

    Converting Relative Humidity with regards to water, to Relative Humidity with regards to ice

    Hi Metabunkers, In regards to persistent spreading contrails. I understand that different contrails ie: short, persistent, persistent and spreading contrails require different environmental conditions to exist. I've been observing planes leaving persistent spreading contrails at altitudes...
  2. Mick West

    Explained: Flying Carpet Rhombus-shaped Cloud in Exeter

    via: The straight-edged rectangular formation was seen in the sky in Exeter, Devon - and images were quickly posted on social media. One picture of the rhombus-shaped cloud was...