Turbulence is rarely that simple. It’s too scattered, too mercurial, too easily triggered by weather patterns that trigger other patterns in an endless cascade. “It’s not just one thing that’s going on,” Bob Sharman, an atmospheric scientist at NCAR, told me. “It’s not just atmospheric convection. It’s not just wind flowing over mountains. It’s everything going on all the time and interacting.” Sharman is one of the country’s preëminent authorities on turbulence prediction. The computer models that he has built can predict where rough air is most likely to arise. “The problem is,” he said, “when we go to meetings with the airline industry and suggest a probabilistic approach, a pilot will stand up and say, ‘No! I want you to tell me if there will be turbulence at this place, at this time.’ ” Sharman threw up his hands. “Nobody knows that. I understand that, in theory, you would want that. But, in practice, that is just not possible.”
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伊朗现在的战术是减少弹道导弹发射数量以节省弹药,同时投入无人机、巡航导弹和较老式的弹道导弹。这需要相当强的协调能力,因为一千多公里距离无人机需要飞行6—7小时,巡航导弹也要飞行90分钟以上,弹道导弹则只需十几分钟。在美以防空探测、指挥系统陷入饱和状态,拦截系统全面启动、发射后,伊朗再发射霍拉姆沙赫尔、征服者-1/2等具备机动能力的先进导弹打击重点目标,会令美以反导系统顾此失彼。而原本导弹型号繁杂带来的后勤保障劣势此时反而成了优势,美以反导系统必须面对一堆不同速度、不同弹道轨迹的来袭导弹,耗费更多系统资源。。关于这个话题,币安_币安注册_币安下载提供了深入分析
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