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
2023-09-11
33
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 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 forecast, or "Nowcasts", was not feasible. The cost of equipping and operating many thousands of conventional weather station 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, Nowcasting is becoming a reality. [br] The word" exceeded" in paragraph I 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/3006154.html
相关试题推荐
【S1】[br]【S3】A、improvingB、harmingC、threateningD、stimulatingA词义辨析题。根据下文“事实上,
[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】______
随机试题
Overhalftheworld’speoplenowliveincities.Thelatestreport"GlobalR
There’sasceneinthe2008movieIronManwhereTonyStark,thefilm’sinve
Iwasn′tblaminganyone;Isaiderrors
高校教师如何对待有益竞争?
天窗设置的技术要求,必要的是()。Ⅰ.应有防阳光直射的措施;Ⅱ.应采用防破碎
8月25日,当日12时20分左右,某小区8号楼2楼一处商铺房发生火灾。这个房间被
轴心受拉和小偏心受拉构件中的钢筋接头不应采用绑扎接头,在普通混凝土中直径大于()
1966年下半年至1971年,是城市建设()的时期。A.开始复兴的时期
在建设工程设计施工一体化/总承包合同中,发包人的义务不包括()。A、按照约定向
下列关于工程方案及配套工程的说法,正确的有()A:工程方案包括建筑工程方案、技术
最新回复
(
0
)