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
91
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
[originaltext]M:Mm...Ithinkweseeeyetoeyethere.Howaboutthoselanguag
Acoldbathmakestheindividuallesssusceptibletocommoncold.冷水浴可以使人不易患感冒。
Moresurprising,perhaps,thanthecurrentdifficultiesoftraditionalmarri
甲公司是一家从事化妆品销售的股份有限公司,2020年度公司的主营业务收入为100
下图为甲、乙两条河流入海口地理位置示意图。 两条河流的河口平原发展农业的共
如图所示的周期为T的三角波信号,在用傅氏级数分析周期信号时,系数a0、an和bn
路人王某在路经一高层建筑时,被悬挂在5楼的广告牌砸伤,当地的居民发现后,将其送
根据《医疗器械网络销售监督管理办法》.下列具有《医疗器械经营许可证》的医疗器械零
甲公司一台用于生产M产品的设备预计使用年限为5年,预计净残值为零。假定
在工业计算机控制系统中,属于基础自动化系统控制的核心,直接与工艺检测驱动级连接。
最新回复
(
0
)