首页
登录
职称英语
Many of the most damaging and life threatening types of weather torrential r
Many of the most damaging and life threatening types of weather torrential r
游客
2023-09-14
17
管理
问题
Many of the most damaging and life threatening types of weather torrential rains, severe thunderstorms, and tornadoes begin quickly, strike suddenly, and disappear rapidly, destroying small regions while leaving neighbouring areas untouched. Such event as a tornado struck the northeastern 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 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 "Nowcasts," was not feasible. The cost of equipping 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 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, Nowcasting is becoming a reality. [br] The word "exceeded" in paragraph 1 most probably means______.
选项
A、added up to
B、were more than
C、were about
D、were less than
答案
B
解析
exceed的意思是“超过”。
转载请注明原文地址:https://tihaiku.com/zcyy/3014403.html
相关试题推荐
[originaltext]Nomancanchangetheweather.Nobodycancontroltheweather.
Manyofthemostdamagingandlifethreateningtypesofweathertorrentialr
Manyofthemostdamagingandlifethreateningtypesofweathertorrentialr
Manyofthemostdamagingandlifethreateningtypesofweathertorrentialr
MildweatherhasbroughtJapan’smuch-lovedcherrytreesinto【B1】______
MildweatherhasbroughtJapan’smuch-lovedcherrytreesinto【B1】______
MildweatherhasbroughtJapan’smuch-lovedcherrytreesinto【B1】______
MildweatherhasbroughtJapan’smuch-lovedcherrytreesinto【B1】______
MildweatherhasbroughtJapan’smuch-lovedcherrytreesinto【B1】______
Meteor-psychologists(气象心理学家)areconcernedwithhowtheweather【B1】______t
随机试题
TrustMe,I’maRobot[A]Withrobotsnowemergingfromt
Manymedicaldoctorspointoutthatthewidespreadofcigarettesmoking______th
投资估算编制内容中,()单独估算以便对建设项目进行融资前和融资后财务分析
患者,男,18岁。因固定性右下腹痛18小时急诊行阑尾切除术,术中证实为坏疽性阑尾
封闭式基金份额上市交易应具备( )。A.基金的募集符合《证券投资基金法》的规定
我们每个人都应该有这样的生活态度:如果你赋予工作意义,不论工作轻重,你都感到快乐
下列说法中,正确的是( )。A.大赦既赦其刑,又赦其罪B.特赦只赦其刑
A.降气化痰,降逆止呕 B.养血活血,舒筋通络 C.祛风通络,活血调经 D
清热药药理作用,不包括()A.解热 B.抗炎 C.延缓衰老 D.抗肿
某技术方案年营业收入4000万元,外购原材料费1500万元,工资及福利费500万
最新回复
(
0
)