What are the functions of the following weather instruments?
1.rain gauge
2.Hygrometer
3.Windsock(I think it tell the strength of the wind right?)
4.Barometer
5.Windvane
The windsock also tells the direction. This is used on Surface winds only.
Look the other terms up in http://www.onelook.com/
ok thank you soooooo much!!!!!
1. Rain gauge: A rain gauge is used to measure the amount of precipitation, specifically rainfall. It consists of a cylindrical container with measurement markings and a small opening on the top to collect the rainwater. To measure the amount of rainfall, place the rain gauge in an open area away from obstructions and wait for rain to collect in the container. Read the measurement markings to determine the amount of rainfall in inches or millimeters.
2. Hygrometer: A hygrometer is used to measure the humidity or moisture content in the air. It helps give an indication of the amount of water vapor present in the atmosphere. There are different types of hygrometers, such as the psychrometer, which uses two thermometers (wet-bulb and dry-bulb) to calculate relative humidity. Other types might use electronic sensors. To use a hygrometer, follow the instructions specific to the type you have to get accurate readings.
3. Windsock: You are correct in thinking that a windsock provides an indication of wind direction. Windsocks are often found at airports and other locations where wind direction is important for safety reasons. The movement and orientation of a windsock can give an approximate idea of the wind direction. Typically, a long tapered fabric tube it attached to a pole or mast. When wind blows into the open end of the windsock, it inflates and shows the direction from where the wind is coming.
4. Barometer: A barometer is used to measure atmospheric pressure. It provides information about changes in weather patterns and helps predict short-term weather conditions. A common type of barometer is the mercury barometer, which measures atmospheric pressure using a column of mercury in a glass tube. Another type is an aneroid barometer, which uses a flexible metal disc to measure pressure changes. To use a barometer, observe the position of the pointer or scale to determine the atmospheric pressure and monitor any changes.
5. Wind vane (or wind indicator): A wind vane is used to determine the direction of the wind. It usually consists of a flat or arrow-shaped object attached to a rotating spindle. The flat part is designed to align itself with the wind, pointing in the direction from which the wind is blowing. To read the wind direction, observe which way the arrow or flat object is pointing on the wind vane.