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
2024-03-03
3
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://www.tihaiku.com/zcyy/3501353.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
Countriesatalllevelsofeconomicdevelopmentfaceasimilarchallenge:to
急性胰腺炎的特点是A.临床特点为急腹症、剧痛、恶心、呕吐、休克等 B.它是胰酶
一患者因儿童期颏部外伤所致颞下颌关节强直,请回答如下问题。这类病例常伴有比较严重
患儿,2岁。形体极度消瘦,面呈老人貌,皮包骨头,腹凹如舟,精神萎靡,大便溏薄,舌
下列对抗疟药的叙述,正确的是A.氯喹对阿米巴囊肿无效 B.奎宁根治良性疟 C
全面巡视周期:一类变电站每()不少于1次;二类变电站每()不少于
从A、B、C、D四个图形中选出最合适的一个,使得它保持左边四个图形所呈现的规律性
城市进入较快动态发展时期是在( )。A.工业革命之后 B.第二次世界大战之后
员工素质测评的文字分析所需材料包括( )。A.测评手册 B.测评说明 C.
电力变压器运行时,下列哪项故障及异常情况应瞬时跳闸? A、由于外部相间短路引起
最新回复
(
0
)