首页
登录
职称英语
Many of the most damaging and life threatening types of weather, such as torrent
Many of the most damaging and life threatening types of weather, such as torrent
游客
2025-03-13
28
管理
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. [br] 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://tihaiku.com/zcyy/3994779.html
相关试题推荐
Weareinterestedintheweatherbecauseit.______ussodirectlywhatwewear,
Ilike______intheautumnwhentheweatherisclearandbright.A、thisB、thatC
Manyofthemostdamagingandlifethreateningtypesofweather,suchastorrent
Manyofthemostdamagingandlifethreateningtypesofweather,suchastorrent
—It’salovelyday,isn’tit?—Yes.Ilove______whentheweatherislikethis.
Owingtothebadweather,thematchhasbeen______.A、putoutB、putoverC、puto
Advancedcomputertechnologyhas______ananswertoaccurateweatherforecastin
Neverbefore______sohighlysuccessfulinhisattemptstomodifytheweatheron
Weareinterestedintheweatherbecauseit______ussodirectly-whatwewear,
这个星期天很干燥。Theweatherhasbeendrythisweek.
随机试题
Iftherearemuchmorepeopleintheworld,then76.______theremustha
IAenjoyeatingBgoodinrestaurantsandCtogotothetheaterDafterwards.A、&nb
B级型车与C级型车相比,比值最大的年份与比值最小的年份相比,比值相差()。
.颈部的筋膜间隙不包括:()A.咽旁间隙 B.咽后间隙 C.椎前间隙
治疗闭经气血虚弱证,应首选A.人参养荣汤B.归脾汤C.加减一阴煎D.举元煎E.归
下列哪种物质调节人体酸碱平衡的能力最强A.HCO B.Na C.K D.C
290、在新、扩建工程设计中,消防水系统应同工业水系统分离,以确保消防水量、水压
某中学二年级的一个班级,是学校有名的乱班,打架成风,一些学生动辄舞棍弄棒,乱打一
某公司20×2年资金平均占用额为1500万元,其中不合理的部分占20%
对于肺炭疽患者应当采取的预防、控制措施是A:为甲类传染病,按照甲类处理 B:为
最新回复
(
0
)