首页
登录
职称英语
There are several different methods that can be used to create a forecast. Th
There are several different methods that can be used to create a forecast. Th
游客
2023-12-23
109
管理
问题
There are several different methods that can be used to create a forecast. The method a forecaster chooses depends upon the experience of the forecaster, the amount of information available to the forecaster, the level of difficulty that the forecast situation presents, and the degree of accuracy or confidence needed in the forecast.
The first of these methods is the persistence method; the simplest way of producing a forecast. The persistence method assumes that the conditions at the time of the forecast will not change. For example, if it is sunny and 87 degree today, the persistence method predicts that it will be sunny and 87 degree tomorrow. If two inches of rain fell today, the persistence method would predict two inches of rain for tomorrow. However, if weather conditions change significantly from day to day, the persistence method usually breaks down and is not the best forecasting method to use.
The trends method involves determining the speed and direction of movement for fronts, high and low pressure centers, and areas of clouds and precipitation. Using this information, the forecaster can predict where he or she expects those features to be at some future time. For example, if a storm system is 1,000 miles west of your location and moving to the east at 250 miles per day, using the trends method you would predict it to arrive in your area in 4 days. The trends method works well when systems continue to move at the same speed in the same direction for a long period of time. If they slow down, speed up, change intensity, or change direction, the trends forecast will probably not work as well.
The climatology method is another simple way of producing a forecast. This method involves averaging weather statistics accumulated over many years to make the forecast. For example, if you were using the climatology method to predict the weather for New York City on July 4th, you would go through all the weather data that has been recorded for every July 4th and take an average. The climatology method only works well when the weather pattern is similar to that expected for the chosen time of year. If the pattern is quite unusual for the given time of year, the climatology method will often fail.
The analog method is a slightly more complicated method of producing a forecast. It involves examining today’s forecast scenario and remembering a day in the past when the weather scenario looked very similar (an analog). The forecaster would predict that the weather in this forecast will behave the same as it did in the past. The analog method is difficult to use because it is virtually impossible to find a predict analog. Various weather features rarely align themselves in the same locations they were in the previous time. Even small differences between the current time and the analog can lead to very different results. [br] Which method may involve historical weather data?
选项
A、The trends method.
B、The analog method.
C、Both climatology method and analog method.
D、The trends method and the persistence method.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3299650.html
相关试题推荐
[originaltext]Peoplecanbeaddictedtodifferentthings,e.g.,alcohol,dr
[originaltext]Peoplecanbeaddictedtodifferentthings,e.g.,alcohol,dr
[originaltext]Peoplecanbeaddictedtodifferentthings,e.g.,alcohol,dr
[originaltext]Peoplecanbeaddictedtodifferentthings,e.g.,alcohol,dr
Peopleofdifferentfieldscametogetherforthesamedreamofbuildingasmart
Peopleofdifferentfieldscametogetherforthesamedreamofbuildingasmart
Peopleofdifferentfieldscametogetherforthesamedreamofbuildingasmart
Peopleofdifferentfieldscametogetherforthesamedreamofbuildingasmart
Thereareseveraldifferentmethodsthatcanbeusedtocreateaforecast.Th
Thereareseveraldifferentmethodsthatcanbeusedtocreateaforecast.Th
随机试题
ATheaboveisthemostimportantaspectBwhichapesCcanbetoldfrommoreDprim
Sixteen-year-oldMichaelViscardsiofSanDiegowonfirstprizeintheSieme
香水的使用禁忌有()。A.忌用量过多 B.忌使用位置不当 C.忌不洁使用
根据《项目融资业务指引》的规定,项目融资是指符合()特征的贷款。A.借款人通常
片剂处方中的羧甲基淀粉钠通常作为A.崩解剂 B.金属络合剂 C.黏合剂 D
某建设项目,建设期为3年,建设期第一年贷款400万元,第二年贷款500万元,第三
某房地产开发项目的总投资为5000万元,其中60%为年利率7%的银行贷款,全部本
(2019年真题)自由买卖和转让上市国债的市场是()A.要素市场 B.产权市
根据土地增值税法律制度的规定,下列情形中,属于税务机关可要求纳税人进行土地增值税
关于骨盆径线,下述哪项错误A、骶耻外径<18cm有可能骨盆入口狭窄 B、坐骨结
最新回复
(
0
)