Domenica 25 aprile è stata una giornata caratterizzata dalla presenza di numerose scie d'aereo nel cielo di Milano. In questo post pubblico alcune fotografie di scie e aerei scattate domenica ed una breve analisi dei dati atmosferici della giornata, giornata che had begun well, with a discreet air traffic in the skies over Europe!
flightradar24.com air traffic registered on the morning of April 25, 2010.
The wakes of aircraft has resulted in spectacular day at junctions and intense contrasts with clouds
Certainly the spectacle of a sky marred by so many trails could worry a neophyte who is approaching the issue of contrails of aircraft. But there really is not much to worry about because if we look more closely at this show, using a telephoto lens or a telescope, we find that aircraft produce contrails that are just "normal airliners. Aircraft on which we climbed many times.
B737-700 airberlin
Swiss International Air Lines A320 HB-IJB Flight id: LX173M
Airmalta 9H-AEG A319 Flight id: KM0491 [ZRH-MLA]
Vueling Airlines A320-214 EC KBU-Flight id: VY6256 [CDG-FCO]
Germanwings A319 D-AKNM Flight id: 4U2885 [FCO-STR]
Airberlin A320
If we then to analyze the atmospheric data of the hours of the day 12Z, we see that there were conditions for the formation of contrails. It was not, however, recorded the presence of supersaturated air, necessary for the persistence of contrails. But going to correct the data of relative humidity with a correction Miloshevich, with all due caution *, we observe the presence of supersaturated air.
April 25, 2010 12Z
conditions for the formation of condensation trails: Yes (link to diagram Appleman).
conditions for the persistence of contrails: no (link to chart RELH / T ).
conditions to persist after correction Milosehvich *: Yes (link to chart RELH / T correct) .
At this point, those who think that a certain air releases trails evil can verify his hypothesis in two simple ways: i) taking the suspect machine with a telescope and determine the nature (bad tank of heaven or normal airliner) and ii) analyzing the weather of the day (to check the presence of conditions for the formation and persistence of contrails).
flightradar24.com air traffic registered on the morning of April 25, 2010.
The wakes of aircraft has resulted in spectacular day at junctions and intense contrasts with clouds
Certainly the spectacle of a sky marred by so many trails could worry a neophyte who is approaching the issue of contrails of aircraft. But there really is not much to worry about because if we look more closely at this show, using a telephoto lens or a telescope, we find that aircraft produce contrails that are just "normal airliners. Aircraft on which we climbed many times.
B737-700 airberlin
Swiss International Air Lines A320 HB-IJB Flight id: LX173M
Airmalta 9H-AEG A319 Flight id: KM0491 [ZRH-MLA]
Vueling Airlines A320-214 EC KBU-Flight id: VY6256 [CDG-FCO]
Germanwings A319 D-AKNM Flight id: 4U2885 [FCO-STR]
Airberlin A320
If we then to analyze the atmospheric data of the hours of the day 12Z, we see that there were conditions for the formation of contrails. It was not, however, recorded the presence of supersaturated air, necessary for the persistence of contrails. But going to correct the data of relative humidity with a correction Miloshevich, with all due caution *, we observe the presence of supersaturated air.
April 25, 2010 12Z
conditions for the formation of condensation trails: Yes (link to diagram Appleman).
conditions for the persistence of contrails: no (link to chart RELH / T ).
conditions to persist after correction Milosehvich *: Yes (link to chart RELH / T correct) .
At this point, those who think that a certain air releases trails evil can verify his hypothesis in two simple ways: i) taking the suspect machine with a telescope and determine the nature (bad tank of heaven or normal airliner) and ii) analyzing the weather of the day (to check the presence of conditions for the formation and persistence of contrails).
* Note for a full explanation of the topic, see a previous post (link ).
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