首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickl
Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickl
admin
2013-01-03
20
问题
Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickly, strike suddenly, and disappear rapidly, de-stroying small regions while leaving neighboring areas untouched.
Conventional (普通) computer models of the atmosphere have limited value in predicting short-lived local storms because the available weather data are generally not detailed enough to allow com-puters to see clearly the small atmospheric changes that come before these storms.
In most nations, for example, weather-balloon observations are taken just once every twelve hours at location typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large re-gions than they do forecasting specific local events.
Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or "nowcasts", was impracticable. 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 beyond overcoming. Fortunately, scientific and technological advance have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observations over large regions at a rela-tively low cost. Communication satellites can transmit data around the world cheaply and immediately, and modern computers can quickly compile and analyze this large volume of weather information.
Meteorologists (气象学家) 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.
Nowcasts are______.
选项
A、local forecasts
B、short-range forecasts
C、medium-range forecasts
D、long-range forecasts
答案
B
解析
本题属词义判断题。nowcasts是个“拼缀词”,由nowadays和fore-casts两个词各取一部分相加,构成了一个新词,意思是“迅发天气预报”或“短期天气预报”,故可解释为short-range forecasts。
转载请注明原文地址:https://kaotiyun.com/show/5GDO777K
0
成人本科学位英语
相关试题推荐
IfEnglishisnotourfirstlanguageyoucanoftenbepuzzledbywaysofexpressionthatthenativespeakersofEnglishdoesnot
AttheKyotoconferenceonglobalwarminginDecember1997,itbecameabundantlyclearhowcomplexithasbecometoworkoutint
Thepicturesquesceneryofhishometownhasoften______himtowritepoems.
ThecurrentemergencyinMexicoCitythathastakenoverourlivesisnothingIcouldeverhaveimaginedformeormychildren.
Scientistsinthe1950sproclaimedtherobotthebrainwave(灵感,灵机)ofthefuture—itwouldfreehousewivesofdrudgery(单调沉闷的工作)
SpeakerA:Ihavetwoticketsfortheconcerttonight.Wouldyouliketocome?SpeakerB:______
I______asleepinthecorner,forIremembernothingofwhathappenedduringthenight.
我们认为她是我们当中最好的作家。
无论多么困难,我也不会失去信心。
你最好马上去看医生。
随机试题
50岁女性,腹胀并少尿1周加重并胸闷半天,有肛门排气及大便。平时能适应中等强度体力劳动,不饮酒,有类风湿关节炎20年,糖尿病1年,最近2个月服偏方治疗糖尿病导致视物模糊,无高血压病及冠心病,无肝炎及血吸虫病史。查体:体温37.3℃,血压95/65mmHg,
粘固剂厚度一般不得超过
患者,男,10岁。阵发性腹绞痛2天,1周前有服红霉素史。查体:双下肢可见紫癜,肝脾未触及,脐周压痛,肠鸣音活跃,血常规无异常,大便隐血(+)。最可能的诊断为()
年末结账后,“利润分配”账户的贷方余额表示()。
下列历史事件按时间先后排列,正确的是()。
里约奥运会的筹备给里约带来了一些较好的影响,有两个变化值得关注:一是关于非保护地带的居住面积(413.1公顷)和服务业使用面积(236公顷)的增长替代了工业区的使用面积的增长(103公顷);二是大都市的贫民窟数量减少了1.8%,而在2004—2009年,贫
在VisualFoxPro中,表单(Form)是指()。
将考试文件夹中的声音文件“BackMusic.mid”作为该演示文稿的背景音乐,并要求在幻灯片放映时即开始播放,至演示结束后停止。
Mostgrowingplantscontainmuchmorewaterthanallothermaterialscombined.C.R.Barneshassuggestedthatitisaspropert
Imagine19,500homespoweredexclusivelybythesum,andnoneofthemwithsolarpanels.ThatisthevisionforBabcockRanch,a
最新回复
(
0
)