首页
登录
职称英语
Many of the most damaging and life threatening types of weather torrential
Many of the most damaging and life threatening types of weather torrential
游客
2024-10-28
1
管理
问题
Many of the most damaging and life threatening types of weather torrential rains, severe thunderstorms, and tornadoes(龙卷风,)--begin quickly, strike suddenly, and disappear rapidly, destroying small regions while leaving neighboring areas untouched. Such event as a tornado struck the north eastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $ 250 million, the highest ever for any Canadian storm.
Conventional computer models of the atmosphere have limited value in predicting short lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to study carefully the subtle (微妙的)atmospheric changes that come before these storms. In most nations, for example, weather - balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation intensive approach needed for accurate, very short - range forecasts, or "Now casts", was not feasible. The cost of e quipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were hard to overcome. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modem computers can quickly compile and analyze this large volume of weather information. Meteorologists(气象学者) and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, now casting is becoming a reality. [br] According to the passage, ______ are the key factor to making "Now casts" a reality.
选项
A、scientific and technological advances such as radar, or satellites
B、computer scientist
C、meteorologists
D、advanced computer programs
答案
A
解析
解决及时预报困难的关键因素是高科技的发展,所以选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3820322.html
相关试题推荐
Manyofthemostdamagingandlifethreateningtypesofweathertorrential
Manyofthemostdamagingandlifethreateningtypesofweathertorrential
Manyofthemostdamagingandlifethreateningtypesofweathertorrential
Manyofthemostdamagingandlife-threateningtypesofweather—torrential
Manyofthemostdamagingandlife-threateningtypesofweather—torrential
Someareas,theirsevereweatherconditions,arehardlypopulated.A、duetoB、in
I’dratherthatthey______duringthebadweather,buttheyinsistthattheymust
Theweathermaynotbefinetomorrow,in______casewe’llhavetoputthetripof
______thereislittlewecandotomodifytheweather,wecanatleastknowwhat
WhichdescriptionisNOTcorrectaboutthestorm?[originaltext]USweatherf
随机试题
[originaltext]M:Well,inanidealworld,Iguesswewouldallgetalongwitho
社会主义的民主政治与资本主义的民主政治最根本的区别是()A.社会主义民主政治的
灯具采用自带蓄电池供电时,应能自动控制应急照明配电箱切断电源输出。()
目前我国设备运输中业主选择保险公司最常见的方式为()。A.公开招标 B.直
一束自然光垂直通过两块叠放在一起的偏振片,若两偏振片的偏振化方向间夹角由α1转到
肌腱是传递力的结构,构成肌腱的组织是()。A.疏松结缔组织 B.致密结缔组
中医孕期用药原则中,下列何类药物应慎用A、峻下药 B、祛瘀药 C、破血药
巨噬细胞吞噬率的正常范围一般为A.51%~54%B.61%~64%C.41%~4
行政法的基本原则是( ),其贯穿于行政法关系之中,具有其他原则不可替代的作用。
下列关于流水生产线的说法,错误的是()。A.流水生产线的加工对象是固定的,工
最新回复
(
0
)