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雷击是造成森林火灾的主要元凶。在美国每年由雷击引起的森林火灾多达数百起,大约烧毁森林面积400多万英亩,造成数十亿美元的经济损失。为了控制灾情,联邦政府每年还要耗资数千万美元用来防火。 以前,发生森林火灾时,消防人员只能凭推测估计火源的位置、火灾蔓延的速度。但任何错误的估计都意味着一场不起眼的小火灾会演变成毁掉整座森林的大火。 现在,这样的现象正在迅速改变。现代森林消防人员的装备已不仅仅是斧头、铲子和风力灭火器了,它已装备了包括卫星、太阳能
Lightning strike is the main culprit causing forest fires. Hundreds of forest fires a year are caused by lightning strikes in the United States, burning about 4 million acres of forest and burning billions of dollars in economic losses. In order to control the disaster, the federal government every year tens of millions of dollars spent on fire prevention. In the past, in the event of a forest fire, firefighters could only estimate the location of the fire source and the rate of fire spread by speculation. But any false assessment means that a humble little fire can turn into a big fire that destroyed the entire forest. Now, this phenomenon is rapidly changing. Modern forest firefighters have more than just axes, shovels and wind-extinguishers, they have been equipped with satellite, solar