After surveying the damage, Environment and Climate Change Canada (ECCC), and the Northern Tornadoes Project (NTP) gave the Barrie tornado a preliminary EF-2 on the Enhanced Fujita scale. It had maximum wind speeds of 210 km/h, with a damage path that was...
The United States now uses the EF (Enhanced Fujita) scale, which takes more variables into account when assigning wind speeds to a tornado. 美国现在使用EF(Enhanced Fujita)级别,在为龙卷风确定风速时,纳入了更多的变数。相关推荐 zebras是什么意思_zebras单词用法 subtotals是什么意思_subtotals单词用法 ...
解答63.答案:A.细节理解题.根据"Various types of tornadoes include the landspout,multiple vortex tornado,and waterspout.Waterspouts are characterized by a spiraling (螺旋式的上升) funnel-shaped wind current,connecting to a large cumulonimbus cloud.They are generally classified as tornadoes that develop...
moist air rises from the ground and meets cold, dry air from the upper atmosphere. This creates an area of instability that can trigger the formation of a thunderstorm. If the wind shear within the thunderstorm is strong enough, it can cause the thunderstorm to rotate, and a tornado may fo...
tornado is defined as a violently rotating column of air extending from a thunderstorm to the ground.The most violent tornadoes are capable of tremendous destruction with wind speeds of 250 mph or more.Damage paths can be in excess of one mile wide and 50 miles long.Once a tornado in ...