Weather：練習題

Which of the following instruments is used to measure wind speed at a weather station?

At a weather station, the maximum temperature for the day was recorded as \(28^{\circ}\text{C}\) and the minimum was \(15^{\circ}\text{C}\). What is the diurnal temperature range?

Which cloud type is characterized by its high vertical development, anvil-shaped top, and association with heavy thunderstorms?

What is the primary function of a Stevenson Screen in a weather station?

A wet-and-dry bulb thermometer (hygrometer) shows identical readings on both thermometers. What does this indicate about the atmospheric conditions?

State the name of the instrument used to measure wind direction and describe how it shows the direction from which the wind is blowing.

A student observes a sunshine recorder (Campbell-Stokes pattern) at a weather station.

(a) Describe how the instrument records the duration of sunshine throughout the day. (2 points)
(b) Explain why the glass sphere must be kept clean to ensure an accurate recording. (1 point)

Identify the weather instrument used to measure wind speed and state where it is typically located within a weather station to ensure accuracy.

A student is using a Six's thermometer (maximum-minimum thermometer) to record the temperature at a weather station over a 24-hour period.

(a) State the name of the liquid used in the bulbs of this thermometer. (1 point)
(b) Explain how the indices inside the glass tubes indicate the maximum and minimum temperatures. (2 points)

A student is collecting weather data at a school weather station. Use your knowledge of weather instruments to answer the following questions:

(a) State the name of the instrument used to measure sunshine duration and describe one feature of its design that helps it function. (2 points)
(b) The student needs to measure the cloud cover. Name the unit used for this measurement and describe how a student would estimate it by looking at the sky. (2 points)