weather instruments and their uses pdf

Weather Instruments And Their Uses Pdf

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A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate. The measurements taken include temperature , atmospheric pressure , humidity , wind speed , wind direction , and precipitation amounts. Wind measurements are taken with as few other obstructions as possible, while temperature and humidity measurements are kept free from direct solar radiation, or insolation. Manual observations are taken at least once daily, while automated measurements are taken at least once an hour.

Weather Instruments & Their Uses

Meteorologists use a wide variety of different instruments to measure weather conditions, but many of these instruments fall into relatively common, overarching categories. Thermometers, for instance, come in traditional liquid-in-glass forms and newer electronic forms, but both measure temperature in Celsius and Fahrenheit. Other instruments measure aspects of weather like rainfall, pressure, humidity and wind speed. These instruments and measurements allow meteorologists to make predictions on weather conditions in the near future. Thermometers measure the high and low outdoor temperatures in degrees Fahrenheit and degrees Celsius. Meteorologists first used liquid-in-glass thermometers in the late s, but they now use electronic maximum-minimum temperature sensor systems more frequently. The newer systems use an electronic temperature sensor to measure and record high and low temperatures.

Rainfall is measured at thousands of weather stations across the United States using various types of rain gauges. These vary in complexity from simple measuring cylinders to sophisticated optical detectors. The simplest kind has been used at U. The simplest and most widely used rain gauges simply consist of a large cylinder, a funnel and a plastic measuring tube. As rain falls to the ground, it is collected by the funnel and travels to the plastic measuring tube. The amount of rain collected within a day can be read off the measuring tube.

Measurement of Climate and Weather Instruments (With Diagram)

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems and frontal boundaries. Barometers and pressure altimeters the most basic and common type of altimeter are essentially the same instrument, but used for different purposes. An altimeter is intended to be transported from place to place matching the atmospheric pressure to the corresponding altitude, while a barometer is kept stationary and measures subtle pressure changes caused by weather.

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems and frontal boundaries. Barometers and pressure altimeters the most basic and common type of altimeter are essentially the same instrument, but used for different purposes. An altimeter is intended to be transported from place to place matching the atmospheric pressure to the corresponding altitude, while a barometer is kept stationary and measures subtle pressure changes caused by weather.


Precipitation comes in different forms depending on the climate but the formation is basically the same. In cold air high in the sky, rain clouds will often form.


Meteorological Instruments And Their Uses Pdf

The weather elements include temperature, pressure, wind, humidity and cloudiness. Each day weather maps are prepared for that day by the Meteorological Department from the data obtained from observations made at various weather stations across the world. In India, weather-related information is collected and published under the auspices of the Indian Meteorological Department, New Delhi, which is also responsible for weather forecasting.

This article throws light upon the eight elements of climate measured by weather instruments. The elements are: 1. Rainfall 2. Pressure 3.

Measuring Weather with Tools

Weather instruments are used to take measurements of various atmospheric parameters at local weather stations. Why do I care? By understanding patterns of temperature, wind, and rainfall as measured by instruments, we can describe our local weather and climate.

This lists the logos of programs or partners of NG Education which have provided or contributed the content on this page. Activate prior knowledge about instruments used to measure weather. Ask: What instruments do you or your family members use to measure weather?

Weather Instruments. Search this site. Weather Instrument Information.

3 comments

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Peter L.

Meteorologists study the weather by recording and looking at their data. • They collect data by using different weather instruments. – Thermometer, barometer.

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