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  1. Clouds Givemethewillies

    Contrail lobes or mamma? The importance of correct terminology

    http://onlinelibrary.wiley.com/doi/10.1002/wea.2765/full "We thank David Lewellen, Mick West, and Vladimir Janković for their discussions and for providing resources about contrails"
  2. Clouds Givemethewillies

    Observations of MIrages Close to the Horizon

    Here are two photos of Newquay Cards. One is from 9metres asl from the stone pier at Aber and the other from 51 metres asl and 1 mile more distant but in line. There is a mirage in the lowerelevation photo. The air was about 26C and the sea probably 10C or so cooler.
  3. Clouds Givemethewillies

    North Wales beneath the sea

    We had very good visibility today so I took some photos towards Snowdon and north Wales from 10metres asl. at Aberystwyth stone pier.
  4. Clouds Givemethewillies

    Method of measuring the distance to horizon

    With a photo of a suitable bit of coast with landmarks, the intersection of the horizon with the coast can be determined by the point of inflection of the edge of the sea. eg.
  5. Clouds Givemethewillies

    Why do inner contrails spread more than outer contrails?

    DLH440 36,000 ft. Airbus A380-841, wales uk. Anybody know why the inner trails spread so much more than the outer?
  6. Clouds Givemethewillies

    Strange looking plane

    What the heck is this?
  7. Clouds Givemethewillies

    Persistent Aerodynamic Contrails From Propellor Tips

    A weedy plane and trail, unusually low altitude. I think it was 24,000ft. at the time.
  8. Clouds Givemethewillies

    Automated Video Tracking of Planes

    Beagle Trail - follows the scent of an aircraft ~ five minutes after the event. I am surprised there has been no interest in this, so far. Source: https://www.youtube.com/watch?v=DxGHbwL3pig
  9. Clouds Givemethewillies

    Measuring the Curvature of the Horizon with a Level

    110 metres (360 feet) altitude. from DSCF2782.JPG horizon 10 to 1 stretched.jpg https://www.google.co.uk/maps/place/52°25'36.6"N+4°04'50.6"W/@52.4268315,-4.0982318,4469m/data=!3m2!1e3!4b1!4m5!3m4!1s0x0:0x0!8m2!3d52.426827!4d-4.080731 7 metres altitude...
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