首页
登录
职称英语
Many of the most damaging and life threatening types of weather--torrential rain
Many of the most damaging and life threatening types of weather--torrential rain
游客
2023-07-31
54
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 neighboring areas untouched. Such event as a tornado struck the northeastern section of Edmonton, Alberta, in July 19
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 (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] Why do conventional models of the atmosphere fail to predict such a short-lived tornado?
选项
答案
Because the available data are not detailed enough,
解析
题目问传统的天气预报为何不能有效预报短期内天气的变化,由题干中的关键词conventional models of atmosphere可以定位到第二段的开头,第一句话的后半句because the available weather data are generally not detailed enough直接给出了答案
转载请注明原文地址:https://tihaiku.com/zcyy/2885093.html
相关试题推荐
Manyofthemostdamagingandlifethreateningtypesofweather--torrentialrain
Manyofthemostdamagingandlifethreateningtypesofweather--torrentialrain
Manyofthemostdamagingandlifethreateningtypesofweather--torrentialrain
Manyofthemostdamagingandlifethreateningtypesofweather--torrentialrain
Manyofthemostdamagingandlifethreateningtypesofweather--torrentialrain
ToomuchTVviewingisintellectuallydamaging;____________(换句话说),itkillscre
随机试题
【S1】[br]【S3】A形容词辨义题[考频:8]。从语法结构看,该题应填入形容词来修饰medicalservices,选项中符合这一要求的单词有valu
Withtherecentrapidadvancesininformationtechnologies,educationalrese
()支持网络系统功能,并具有透明性。A.批处理操作系统 B.分时操作系统
A.癌 B.肉瘤 C.母细胞瘤 D.精原细胞瘤 E.霍奇金病来源于间叶组
(2017年真题)下列关于股权投资基金的说法中,错误的是()。A.广义股权
Thechangeinthatvillagewasmiraculou
某患儿,女,2岁,以急性泌尿系统感染收入院,有发热、腹痛、尿痛、排尿时哭闹等症状
协助烈属做好悲伤辅导和心理疏导是优抚安置社会工作中()的内容。A.烈士褒扬社会
下列各项中,应按照“销售服务—生活服务”税目计缴增值税的是()。A.文化创意服
非周期信号的幅度频谱是()。A.连续的 B.离散的,谱线正负对称排列 C
最新回复
(
0
)