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
59
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] According to the passage, the word "Nowcast" (paragraph 3 ) means______.
选项
A、a way of collecting raw weather data
B、a forecast which can predict the weather conditions in the small area in an accurate way
C、a network to collect instant weather data
D、a more advanced system of weather observation
答案
B
解析
根据该词前面的解释accurate,short—range forecasts可以推断出Nowcast的意思为“准确,及时的天气预报”。另外,通过前缀也可推测出来:fore—表示“提前”, now—表示“立即”。
转载请注明原文地址:http://tihaiku.com/zcyy/3014405.html
相关试题推荐
[originaltext]Alaskaisknownforitscoldsnowyweather.Formanyyears,do
[originaltext]Alaskaisknownforitscoldsnowyweather.Formanyyears,do
[originaltext]Alaskaisknownforitscoldsnowyweather.Formanyyears,do
[originaltext]TheFoodandDrugAdministrationis,again,threateningtoimp
【S1】[br]【S3】A、improvingB、harmingC、threateningD、stimulatingA词义辨析题。根据下文“事实上,
[originaltext]Nomancanchangetheweather.Nobodycancontroltheweather.
[originaltext]Nomancanchangetheweather.Nobodycancontroltheweather.
[originaltext]Nomancanchangetheweather.Nobodycancontroltheweather.
Manyofthemostdamagingandlifethreateningtypesofweathertorrentialr
Manyofthemostdamagingandlifethreateningtypesofweathertorrentialr
随机试题
ItisacknowledgedthatthemodernmusicalshowisAmerica’smostoriginala
HealthMinisterNicolaRoxon’slatestproposalthatpatientsbeallocatedto
Herecomesthee-bookrevolutionA)Atwhattemperaturedoelectronicbo
地陪在参观点担任翻译时,如果主人的表达中有不妥之处,地陪在翻译前应( )。A.
A题干图形的外围均是开放的,A项符合。
我国商业银行个人理财业务的形成时期是()。A.20世纪80年代末到90年代
联系实际,谈谈操作技能的培训有哪些要求?
经评标,甲被推荐为第一中标候选人,但在中标通知书发出之前,招标人收到甲退出此次投
起重吊装工程中,履带式起重机吊装荷载的组成有()。A.吊臂重量 B.被吊
女性,70岁,5年前经过超声心动图诊断为扩张型心肌病,平时无症状。该患者应当长期
最新回复
(
0
)