Comments on: Contrail Gaps and other Questions http://contrailscience.com/contrail-gaps-and-other-questions/ The Science and Pseudoscience of Contrails and Chemtrails Thu, 17 May 2012 02:26:36 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Uncinus http://contrailscience.com/contrail-gaps-and-other-questions/comment-page-2/#comment-150151 Uncinus Mon, 14 May 2012 22:28:27 +0000 http://contrailscience.com/contrail-gaps-and-other-questions/#comment-150151 Nicely done Alexey! <img src="http://contrailscience.com/skitch/A400M-Seville-20120514-152815.jpg" alt="" /> Nicely done Alexey!

]]> By: Alexey http://contrailscience.com/contrail-gaps-and-other-questions/comment-page-2/#comment-150120 Alexey Mon, 14 May 2012 20:56:51 +0000 http://contrailscience.com/contrail-gaps-and-other-questions/#comment-150120 PPS It looks like I finally have found the most likely culprit. It is a prototype of the Airbus Military aircraft A400M based in Seville. Its test flights can be followed on flightradar24. Having watched the air traffic in this area for a while, I eventually have got it flying a similar 'erratic' route above the Gulf of Cádiz: http://3.bp.blogspot.com/-m4nRqKf-QBo/T7FoXoKg6-I/AAAAAAAAADs/XkwGe8Oqhwo/s1600/Screen+shot+2012-05-14+at+20.50.56.png PPS
It looks like I finally have found the most likely culprit. It is a prototype of the Airbus Military aircraft A400M based in Seville. Its test flights can be followed on flightradar24. Having watched the air traffic in this area for a while, I eventually have got it flying a similar ‘erratic’ route above the Gulf of Cádiz:
http://3.bp.blogspot.com/-m4nRqKf-QBo/T7FoXoKg6-I/AAAAAAAAADs/XkwGe8Oqhwo/s1600/Screen+shot+2012-05-14+at+20.50.56.png

]]> By: Alexey http://contrailscience.com/contrail-gaps-and-other-questions/comment-page-2/#comment-140374 Alexey Thu, 19 Apr 2012 21:45:56 +0000 http://contrailscience.com/contrail-gaps-and-other-questions/#comment-140374 PS After having watched air traffic in that region on flightradar24.com this morning, I think that the initial suggestion by MikeC about the aircraft entering a holding pattern is valid. I noted a few planes heading to the Faro International Airport (just beyond the left edge of the map in the previous post) from Europe did fly holding patterns in the Huelva area at altitudes of 6-7 km. This is a bit lower than the altitude I used in my contrail modelling. Reducing the altitude would result in scaling down the dimensions of the contrail loop and bringing the flightpath close to the shore, making it more similar to a holding pattern. The only problem that there seems to be no scheduled flights to Faro from the South, so it would have to be a diverted flight. PS
After having watched air traffic in that region on flightradar24.com this morning, I think that the initial suggestion by MikeC about the aircraft entering a holding pattern is valid. I noted a few planes heading to the Faro International Airport (just beyond the left edge of the map in the previous post) from Europe did fly holding patterns in the Huelva area at altitudes of 6-7 km. This is a bit lower than the altitude I used in my contrail modelling. Reducing the altitude would result in scaling down the dimensions of the contrail loop and bringing the flightpath close to the shore, making it more similar to a holding pattern. The only problem that there seems to be no scheduled flights to Faro from the South, so it would have to be a diverted flight.

]]> By: Alexey http://contrailscience.com/contrail-gaps-and-other-questions/comment-page-2/#comment-140107 Alexey Wed, 18 Apr 2012 17:59:19 +0000 http://contrailscience.com/contrail-gaps-and-other-questions/#comment-140107 In the case of Ars Natura coming back to this thread, I have reconstructed from his photos the contrail and the aircraft flight path on Google Earth. Firstly, I have found the exact locations of both viewpoints on Google Earth and checked them on Google StreetView. These viewpoints are about 16 km /10 miles apart. Secondly, I have added the photos, using identifiable ground features in them. Thirdly, for each added photo I iteratively have modelled the contrail so it would approximate the contrail image: <a href="http://1.bp.blogspot.com/-vjTU6LvZCok/T477KyyduhI/AAAAAAAAADU/WEHyxTdYrd8/s1600/GoyoParaPhoto1Overlay.jpg" rel="nofollow"><img width="640" src="http://1.bp.blogspot.com/-vjTU6LvZCok/T477KyyduhI/AAAAAAAAADU/WEHyxTdYrd8/s1600/GoyoParaPhoto1Overlay.jpg" alt="" /></a> <a href="http://3.bp.blogspot.com/-FL15SFYALiY/T477LVxWALI/AAAAAAAAADY/6s2AdQzR36A/s1600/GoyoParaPhoto2Overlay.jpg" rel="nofollow"><img width="640" src="http://3.bp.blogspot.com/-FL15SFYALiY/T477LVxWALI/AAAAAAAAADY/6s2AdQzR36A/s1600/GoyoParaPhoto2Overlay.jpg" alt="" /></a> It is said that about 10 minutes past between the first and the second photo. As seen from above, in this period of time the contrail (white line for the first photo and cyan line for the second one) was blown away in SSE direction by about 16 km /10 miles, that is, the upper air moved with the speed of a car, about 100 km/h / 60 mph. Taking the wind into account, I have deduced from the white model of a younger contrail a probable flight path of the aircraft (shown in red line): <a href="http://2.bp.blogspot.com/-MF1HhT5jMzo/T477fjyOsVI/AAAAAAAAADk/Xe19EbCrvy0/s1600/Huelva_Contrail.jpg" rel="nofollow"><img width="640" src="http://2.bp.blogspot.com/-MF1HhT5jMzo/T477fjyOsVI/AAAAAAAAADk/Xe19EbCrvy0/s1600/Huelva_Contrail.jpg" alt="" /></a> The wind direction and its speed is consistent with what can be deduced from the satellite images of the day: http://lance-modis.eosdis.nasa.gov/imagery/subsets/?project=&subset=AERONET_El_Arenosillo&date=11%2F16%2F2010 In particular, the cirrus fall streaks emphasise the wind direction (along the coast, toward the Africa): http://lance-modis.eosdis.nasa.gov/imagery/subsets/?subset=AERONET_El_Arenosillo.2010320.aqua.250m The aircraft came in the direction from the Canary Islands and made a teardrop loop above the Gulf of Cádiz. It is not a predefined holding pattern for any of the nearby airports (Seville, Jerez and Faro). Perhaps, it was a cause of the "casualties" on the nearby US Naval Station Rota on the day: :) http://www.navy.mil/search/display.asp?story_id=57277 In the case of Ars Natura coming back to this thread, I have reconstructed from his photos the contrail and the aircraft flight path on Google Earth.

Firstly, I have found the exact locations of both viewpoints on Google Earth and checked them on Google StreetView. These viewpoints are about 16 km /10 miles apart. Secondly, I have added the photos, using identifiable ground features in them. Thirdly, for each added photo I iteratively have modelled the contrail so it would approximate the contrail image:

It is said that about 10 minutes past between the first and the second photo. As seen from above, in this period of time the contrail (white line for the first photo and cyan line for the second one) was blown away in SSE direction by about 16 km /10 miles, that is, the upper air moved with the speed of a car, about 100 km/h / 60 mph. Taking the wind into account, I have deduced from the white model of a younger contrail a probable flight path of the aircraft (shown in red line):

The wind direction and its speed is consistent with what can be deduced from the satellite images of the day:

http://lance-modis.eosdis.nasa.gov/imagery/subsets/?project=&subset=AERONET_El_Arenosillo&date=11%2F16%2F2010

In particular, the cirrus fall streaks emphasise the wind direction (along the coast, toward the Africa):

http://lance-modis.eosdis.nasa.gov/imagery/subsets/?subset=AERONET_El_Arenosillo.2010320.aqua.250m

The aircraft came in the direction from the Canary Islands and made a teardrop loop above the Gulf of Cádiz. It is not a predefined holding pattern for any of the nearby airports (Seville, Jerez and Faro). Perhaps, it was a cause of the “casualties” on the nearby US Naval Station Rota on the day: :)

http://www.navy.mil/search/display.asp?story_id=57277

]]> By: Uncinus http://contrailscience.com/contrail-gaps-and-other-questions/comment-page-2/#comment-140092 Uncinus Wed, 18 Apr 2012 15:52:43 +0000 http://contrailscience.com/contrail-gaps-and-other-questions/#comment-140092 Intentionally, I'm afraid. The plugin used was rather old, and was causing problems with the new site software. I suggest you make a new thread in the chemtrail forum of my other site: metabunk.org, where you can upload and/or link photos. It's much better suited for discussion over there. http://metabunk.org/forums/9-Chemtrails Intentionally, I’m afraid. The plugin used was rather old, and was causing problems with the new site software.

I suggest you make a new thread in the chemtrail forum of my other site: metabunk.org, where you can upload and/or link photos. It’s much better suited for discussion over there.

http://metabunk.org/forums/9-Chemtrails

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