Benefits of promulgating higher resolution wind data for airline route planning
Benefits of promulgating higher resolution wind data for airline route planning
复制标题
发布更高分辨率的风数据对航线规划的好处
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Andrew K. Mirza
中科院分区：
文献类型：
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作者：
R. Lunnon;Andrew K. Mirza
我们进行了一项研究，以确定提供高水平分辨率的高空风数据对航空公司飞行计划过程是否有可用的增量效益。目前提供的风速水平分辨率约为140公里。该研究观察了160到40公里的分辨率。利用已发表的方差功率谱进行了理论计算，将风变率量化为水平尺度的函数。该计算还使用了一个已公布的公式，用于节省飞行穿过恒定涡量区域的时间。理论计算的结果用从160公里到80公里的分辨率变化所节省的跨大西洋飞行时间（通常为8小时）来表示。在这种情况下，答案是不到一秒。人们认为，这样一个小的增量效益不能用来证明开发高分辨率数据所需的实际步骤是合理的。研究中更实际的部分包括运行具有可变分辨率输入数据的最佳路线诊断包。考虑了160公里和40公里分辨率的输入数据。虽然这种方法只适用于有限数量的案例和路线，但它证实了理论结果。©英国皇家版权所有2007。经HMSO负责人许可转载。约翰·威利父子有限公司出版
A study has been undertaken to determine whether there are useable incremental benefits from providing upper air wind data at high horizontal resolution to the process of airline flight planning. Currently winds are provided on a horizontal resolution of approximately 140 km. The study looked at resolutions varying between 160 and 40 km. A theoretical calculation was undertaken using published variance power spectra, which quantify the wind variability as a function of horizontal scale. This calculation also used a published formula for the time saving in flying across an area of constant vorticity. The results of the theoretical calculation were expressed in terms of the time saving on a transatlantic flight lasting typically 8 h stemming from a resolution change from 160 to 80 km. In this case the answer was well under one second. It is thought that such a small incremental benefit could not be used to justify the practical steps needed to exploit high resolution data. The more practical part of the study involved running an optimum routes diagnosis package with variable resolution input data. Input data at resolutions of 160 and 40 km were considered. Although this approach was only applied to a restricted number of cases and routes, it confirmed the theoretical result. © Crown Copyright 2007. Reproduced with the permission of the Controller of HMSO. Published by John Wiley & Sons, Ltd