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
2024-06-12
36
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/3630669.html
相关试题推荐
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
Meteor-psychologists(气象心理学家)areconcernedwithhowtheweather【B1】______t
随机试题
Investorsshouldrealistically______thepotentialofanystartupbeforeinvestin
Theforeigncultureswillunavoidably_________thenativeoneaswearemaking
TheUSCongressA)TheUScongressisthelegislativebranchofthefede
[originaltext]M:IsupposethatinBritain,too,familylifehaschangedalot
《火鸟》取材于哪一国家的民间传说故事?()A.俄国 B.德国 C.法国
施工进度计划实施前的交底包括()。A.做好实时的实际进度统计,以便与计划对比,
共用题干 TransportandTrade1.Transportis
投资项目的经济寿命期是指项目建设期加上在()内能够维持经济再生产且不因无形损
A有限合伙企业中,甲、乙为普通合伙人、丙为有限合伙人。2020年4月1日,经履行
关于休克的治疗原则,不正确的是( )。A.失血性休克的治疗首先以输注平衡盐溶液
最新回复
(
0
)