What are the implications of climate change for trans-Atlantic aircraft routing and flight time?

What are the implications of climate change for trans-Atlantic aircraft routing and flight time?
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气候变化对跨大西洋飞机航线和飞行时间有何影响?

DOI:
10.1016/j.trd.2016.04.014
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发表时间:
2016
期刊:
Transport and Environment
影响因子:
--
通讯作者:
Irvine E
Irvine E
中科院分区:
--
文献类型:
--
作者:
Irvine E

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风的变化对飞机航线的影响已被确定为气候变化对航空的潜在影响。这对跨大西洋飞行特别重要,因为北大西洋上空的上层风的模式,特别是急流的位置和强度,强烈影响最佳飞行路线和由此产生的飞行时间。东行的跨大西洋航班通常可以利用急流中的强劲顺风,缩短飞行时间,减少燃料消耗。在这里,我们调查了气候变化对北大西洋上层风的影响,考虑到高温室气体排放的情况下,使用五个气候模型模拟从第五耦合模式相互比较项目。使用飞行航线软件对飞机航线和飞行时间的影响进行量化。气候模式一致认为,到2100年,急流平均将位于再偏北1°的位置,平均强度略有增加。然而,它的位置和速度的每日变化明显大于气候变化造成的任何变化的幅度。气候变化对跨大西洋航线的净影响很小;年平均东行航线缩短1分钟,位于更北的地方,西行航线延长1分钟,在大圆周围分布更广。然而,也有季节性变化;路线时间变化在冬季较大,而在夏季东行和西行路线时间增加。
The effect of wind changes on aircraft routing has been identified as a potential impact of climate change on aviation. This is of particular interest for trans-Atlantic flights, where the pattern of upper-level winds over the north Atlantic, in particular the location and strength of the jet stream, strongly influences both the optimal flight route and the resulting flight time. Eastbound trans-Atlantic flights can often be routed to take advantage of the strong tailwinds in the jet stream, shortening the flight time and reducing fuel consumption. Here we investigate the impact of climate change on upper-level winds over the north Atlantic, using five climate model simulations from the Fifth Coupled Model Intercomparison Project, considering a high greenhouse-gas emissions scenario. The impact on aircraft routing and flight time are quantified using flight routing software. The climate models agree that the jet stream will be on average located 1° further north, with a small increase in mean strength, by 2100. However daily variations in both its location and speed are significantly larger than the magnitude of any changes due to climate change. The net effect of climate change on trans-Atlantic aircraft routes is small; in the annual-mean eastbound routes are 1 min shorter and located further north and westbound routes are 1 min longer and more spread out around the great circle. There are, however, seasonal variations; route time changes are larger in winter, while in summer both eastbound and westbound route times increase.
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影响因子: 4.9
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