1. Mick West

    Mick West Administrator Staff Member

    I managed to get some FAA & ADS-B flight data for a 24 hour period from a few days ago, so I've been playing with some visualizations. This is all the flights, but only indicated when they are ABOVE 30,000 feet. Notice how the lines all end short of their destination cities. THis gives a much more accurate indication of the criss-cross nature of flights paths that might produce contrails, and shows there's pretty much nowhere in the country that will not get contrail grids in the sky from time to time.

    [​IMG]
     
    Last edited: Nov 20, 2013
    • Like Like x 2
  2. Mick West

    Mick West Administrator Staff Member

    This is flights when they go below 30,000 feet

    [​IMG]
     
    Last edited: Nov 20, 2013
    • Like Like x 1
  3. Mick West

    Mick West Administrator Staff Member

    Below 10k. I've not got it lined up right. Will fix eventually.

    These are essentially the on-ramps and off-ramps of the airports.

    [​IMG]
     
    Last edited: Nov 20, 2013
    • Like Like x 1
    • Informative Informative x 1
  4. Mick West

    Mick West Administrator Staff Member

    Flight segments above 40,000 feet. There were a few (about 15-20) segments of longer flights that went above 45,000 feet, none above 50,000

    [​IMG]
     
    Last edited: Nov 20, 2013
  5. Mick West

    Mick West Administrator Staff Member

    This is the above 30,000 feet (green) overlaid over below 30,000 feet (blue). You can see there are several non-flyover areas that still get a lot of traffic, but it won't leave contrails.

    [​IMG]
     
    Last edited: Nov 20, 2013
    • Like Like x 2
  6. Mick West

    Mick West Administrator Staff Member

    I'll work on more interesting stuff next week, got other work to do :)
     
    • Like Like x 1
  7. Jay Reynolds

    Jay Reynolds Senior Member

    This looks like you have achieved some artistry here, Mick. Congratulations, and I can imagine this will be very useful......
     
    • Agree Agree x 1
  8. Unregistered

    Unregistered Guest

    Probably asking too much but it would be good to see comparisons with 10/20 years ago.
     
  9. Mick West

    Mick West Administrator Staff Member

    That certainly would be interesting, but I don't know if that data is available anywhere, certainly not to this detail.
     
  10. Mick West

    Mick West Administrator Staff Member

    Here's something I've long suspected - there's hardly any overflights in Hawaii, it's about 99.5% incoming and outgoing traffic. So it's very unlikely anyone there is seeing lots of contrails directly overhead

    [​IMG]
     
    Last edited: Nov 20, 2013
    • Like Like x 1
    • Informative Informative x 1
  11. Mick West

    Mick West Administrator Staff Member

    Whereas Shasta has a lot. It's interesting that you get chemtrail promoters in both places, but the ones from Hawaii tend to be a little more imaginative in what they classify as "chem".

    [​IMG]

    While there's not a lot of East-West traffic directly over Shasta, there is some not far to the East. Contrails can be seen for about 100 miles in any direction. More from high altitudes. Mt Shasta is about 100 miles from the coast, so all of the contrails between Shasta and the coast will be visible at Shasta - especially if there's a westerly wind blowing them inland.
     
    Last edited: Nov 20, 2013
    • Like Like x 1
  12. Trigger Hippie

    Trigger Hippie Senior Member

    Very cool. Are these just passenger planes or do they include air cargo and military flights?
     
  13. Mick West

    Mick West Administrator Staff Member

    Certainly cargo planes, not sure about military though.
     
  14. Jay Reynolds

    Jay Reynolds Senior Member

  15. Mick West

    Mick West Administrator Staff Member

    This is a region that someone on Above Top Secret was claiming had very little regular traffic:

    [​IMG]
     
    Last edited: Nov 20, 2013
  16. Mick West

    Mick West Administrator Staff Member

    My area. You can see how LAX is used as a nav point for flights to Long Beach and San Diego

    [​IMG]
     
    Last edited: Nov 20, 2013
  17. Mick West

    Mick West Administrator Staff Member

    Any requests? The data covers the US and Europe quite well, and has origin and destination airport, and plane types, so I can do some pretty nice filtering.

    This should be very useful to show to people who claim they live somewhere with very little air traffic.
     
  18. Jay Reynolds

    Jay Reynolds Senior Member

    Can this be animated?
     
  19. Mick West

    Mick West Administrator Staff Member

    Yes, but it would probably take a while, both for me to do, and to render. What region/filters did you have in mind?

    I'm not going to be able to do much on this for a few days after today. But it's fascinating stuff, so I'll be spending more time on it in the future.
     
  20. Jay Reynolds

    Jay Reynolds Senior Member

    I'd like to see Mt. Shasta with a geographic background like above, showing a 24 hour progression of flights > 30,000 ft.
    If it would shorten things, just a dusk to dawn time period would be fine.
    Thanks for considering this, since it will be very effective for a presentation I'm working on...
     
  21. Mick West

    Mick West Administrator Staff Member

    UK and Europe:

    [​IMG]
    [​IMG]




    [​IMG]
     
    Last edited: Nov 20, 2013
    • Like Like x 1
  22. Mick West

    Mick West Administrator Staff Member

    Traffic over the North Atlantic is interesting:

    [​IMG]
     
    Last edited: Nov 20, 2013
  23. Mick West

    Mick West Administrator Staff Member

    Actually, there's this, which gives a pretty good idea, but somewhat low resolution. It's from a polar perspective.

    [​IMG]
     
    Last edited: Nov 20, 2013
  24. Mick West

    Mick West Administrator Staff Member

    The entire planet.

    This illustrates the problems with the data set, which is a combination of FAA data and ADS-B from a volunteer network - so it's rather patchy in most places outside the US and Europe. Some of it is pretty random, like Mauritius has coverage, but india does not.

    [​IMG]
     
    Last edited: Nov 20, 2013
  25. JFDee

    JFDee Senior Member

    Ah, Europe !

    The area where you don't see the ground anymore under all those threads, pretty much in the center - this is the place that I call home ...

    Contrary to the Californians around here, I have all sorts of contrails nearly every day. Now I can see why my chance is so big.
     
    • Funny Funny x 1
  26. Nessa Celery

    Nessa Celery New Member

    That's neat Mick!

    I hope so too.

    On the other hand, I'm also thinking "what a lot of pollution we must have up there." But it's very interesting nonetheless.
     
    • Agree Agree x 1
  27. MikeC

    MikeC Senior Member

    Yep there's a lot more pollution "up there" - but it is still only a fraction of the pollution we generate "down here" from surface vehicles & industrial activities!!
     
    • Like Like x 1
  28. Danny55

    Danny55 Member

    I am roughly where the A is, right beside Glasgow Airport (not the Glasgow Prestwick which is actually 30 miles away). Don't usually see any contrails from these flight overhead, except on the 2 days a year when it doesn't rain
     

    Attached Files:

    • ME.
      ME.jpg
      File size:
      2.4 MB
      Views:
      92
  29. Jay Reynolds

    Jay Reynolds Senior Member

    There is a good reason why they look that way.

     
  30. Mick West

    Mick West Administrator Staff Member

    Yeah, it's really quite amazing how FEW contrails we see, given the vast amounts of flight criss-crossing over our heads every day.

    Varies with local climate though.
     
  31. Mick West

    Mick West Administrator Staff Member

    Last edited: Nov 20, 2013
  32. Trailspotter

    Trailspotter Senior Member

    Last edited by a moderator: Nov 20, 2013
  33. TWCobra

    TWCobra Senior Member

    Can we get a visualization of Australia?
     
  34. Jay Reynolds

    Jay Reynolds Senior Member

    I got this many years ago off the Dundee website, don't remember it's provenance exactly, but its pre 1999:

    atlanticsat.

    from my contrail gallery:
     
    • Like Like x 2
  35. Mick West

    Mick West Administrator Staff Member

    Not for a week. I'm away from my main computer for a while.
     
  36. Trailspotter

    Trailspotter Senior Member

    Thank you, Jay. It is exactly what I was looking for. A similar pattern of contrail crosses on the opposite side of North Atlantic. I think that it is due to both factors: regular spacing of transatlantic routes and the reversal of wind direction ahead of the weather front.

    https://www.metabunk.org/threads/605-Interesting-Contrails-create-five-crosses-in-the-Atlantic
     
    Last edited by a moderator: Nov 20, 2013
  37. Jay Reynolds

    Jay Reynolds Senior Member

    Or else the order was to turn off the spray when the planes got into dry air west of the front......:rolleyes:
     
    Last edited by a moderator: Nov 20, 2013
  38. Mick West

    Mick West Administrator Staff Member

    I'm back! And here's the visualization of >30,000 feet for Australia.

    [​IMG]

    It's all ADS-B so stuff shows up within about 200 miles of a receiver, and if it shows up at other receivers the intervening path is interpolated as a straight line (should actually be a great circle). Looks like Auckland will not be getting many contrails.
     
    Last edited: Nov 20, 2013
    • Like Like x 1
  39. hemi

    hemi Active Member

    Indeed, they don't.

    But the places where you would expect them (Taranaki- the westward bulge halfway down the North Island and Nelson, top of the South Island which are underneath the flight paths for most internal traffic, and Northland, top of the North Island, where all the international traffic leaving Auckland goes over) are the exact places the chemtrail believers report the most 'spraying', and are the centers of the small NZ chemtrail community (namely Clare Swinney in Northland, and Will Ryan in Nelson).

    http://chemtrailsnorthnz.wordpress.com/?s=nelson
    http://chemtrailsnorthnz.wordpress.com/?s=taranaki
    http://chemtrailsnorthnz.wordpress.com/?s=nelson
     
    Last edited by a moderator: Nov 20, 2013
  40. AnonymousATCO

    AnonymousATCO New Member

    The New Zealand map looks pretty good, still ADS-B technology is not widely utilized in the domestic jet fleet and not used at all by air traffic controllers, Air New Zealand still operates 13 Boeing 737-300's on domestic routes, most if not all of them are not ADSB equipped as they are to be replaced with new Airbus A320's. The current Air NZ domestic A320's are ADSB equipped aswell as the Jetstar domestic Buses. Certainly shows the domestic route structure nicely though. The crossing international tracks into and out of wellington show how grid patterns can be fromed over Nelson. Auckland does get the odd overflight been quite a few international services from Nadi to Christchurch recently which pass overhead nicely. There has also been quite a few overflights by Qantas B747 australia-south america flights, I have never heard such grumpy pilots, it sure is a long way!